Edit tour

Windows Analysis Report
http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exe

Overview

General Information

Sample URL:	http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exe
Analysis ID:	1671062
Infos:

Detection

Score:	1
Range:	0 - 100
Confidence:	60%

Signatures

Sigma detected: Usage Of Web Request Commands And Cmdlets

Very long cmdline option found, this is very uncommon (may be encrypted or packed)

Classification

Process Tree

System is w11x64_office

cmd.exe (PID: 6548 cmdline: C:\Windows\system32\cmd.exe /c wget -t 2 -v -T 60 -P "C:\Users\user\Desktop\download" --no-check-certificate --content-disposition --user-agent="Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko" "http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exe" > cmdline.out 2>&1 MD5: 7B2C2B671D3F48A01B334A0070DEC0BD)

conhost.exe (PID: 6644 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 9698384842DA735D80D278A427A229AB)

wget.exe (PID: 6968 cmdline: wget -t 2 -v -T 60 -P "C:\Users\user\Desktop\download" --no-check-certificate --content-disposition --user-agent="Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko" "http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exe" MD5: 3DADB6E2ECE9C4B3E1E322E617658B60)

cleanup

Sigma Signatures

Sigma detected: Usage Of Web Request Commands And Cmdlets

Source: Process started

Author: James Pemberton / @4A616D6573, Endgame, JHasenbusch, oscd.community, Austin Songer @austinsonger: Data: Command: C:\Windows\system32\cmd.exe /c wget -t 2 -v -T 60 -P "C:\Users\user\Desktop\download" --no-check-certificate --content-disposition --user-agent="Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko" "http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exe" > cmdline.out 2>&1, CommandLine: C:\Windows\system32\cmd.exe /c wget -t 2 -v -T 60 -P "C:\Users\user\Desktop\download" --no-check-certificate --content-disposition --user-agent="Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko" "http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exe" > cmdline.out 2>&1, CommandLine|base64offset|contains: , Image: C:\Windows\SysWOW64\cmd.exe, NewProcessName: C:\Windows\SysWOW64\cmd.exe, OriginalFileName: C:\Windows\SysWOW64\cmd.exe, ParentCommandLine: , ParentImage: , ParentProcessId: 4480, ProcessCommandLine: C:\Windows\system32\cmd.exe /c wget -t 2 -v -T 60 -P "C:\Users\user\Desktop\download" --no-check-certificate --content-disposition --user-agent="Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko" "http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exe" > cmdline.out 2>&1, ProcessId: 6548, ProcessName: cmd.exe

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

• Networking
• System Summary
• Malware Analysis System Evasion
• HIPS / PFW / Operating System Protection Evasion

Click to jump to signature section

Show All Signature Results

There are no malicious signatures, click here to show all signatures.

Source: unknown

UDP traffic detected without corresponding DNS query: 1.1.1.1

Source: global traffic

HTTP traffic detected: GET /download/help/certificate/CertAppEnv_Setup.exe HTTP/1.1User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like GeckoAccept: */*Accept-Encoding: identityHost: download.bjca.org.cnConnection: Keep-Alive

Source: global traffic

DNS traffic detected: DNS query: download.bjca.org.cn

Source: global traffic

HTTP traffic detected: HTTP/1.1 404 Not FoundServer: TengineContent-Type: text/html; charset=iso-8859-1Content-Length: 244Connection: keep-aliveDate: Tue, 22 Apr 2025 13:16:38 GMTVia: cache23.l2cn3130[123,122,404-1280,M], cache25.l2cn3130[124,0], cache25.l2cn3130[124,0], ens-cache13.cn6011[175,174,404-1280,M], ens-cache21.cn6011[179,0]Ali-Swift-Global-Savetime: 1745327798X-Cache: MISS TCP_MISS dirn:-2:-2X-Swift-Error: orig response 4XX errorX-Swift-SaveTime: Tue, 22 Apr 2025 13:16:38 GMTX-Swift-CacheTime: 1Timing-Allow-Origin: *EagleId: 3daa4f2917453277985257295eData Raw: 3c 21 44 4f 43 54 59 50 45 20 48 54 4d 4c 20 50 55 42 4c 49 43 20 22 2d 2f 2f 49 45 54 46 2f 2f 44 54 44 20 48 54 4d 4c 20 32 2e 30 2f 2f 45 4e 22 3e 0a 3c 68 74 6d 6c 3e 3c 68 65 61 64 3e 0a 3c 74 69 74 6c 65 3e 34 30 34 20 4e 6f 74 20 46 6f 75 6e 64 3c 2f 74 69 74 6c 65 3e 0a 3c 2f 68 65 61 64 3e 3c 62 6f 64 79 3e 0a 3c 68 31 3e 4e 6f 74 20 46 6f 75 6e 64 3c 2f 68 31 3e 0a 3c 70 3e 54 68 65 20 72 65 71 75 65 73 74 65 64 20 55 52 4c 20 2f 64 6f 77 6e 6c 6f 61 64 2f 68 65 6c 70 2f 63 65 72 74 69 66 69 63 61 74 65 2f 43 65 72 74 41 70 70 45 6e 76 5f 53 65 74 75 70 2e 65 78 65 20 77 61 73 20 6e 6f 74 20 66 6f 75 6e 64 20 6f 6e 20 74 68 69 73 20 73 65 72 76 65 72 2e 3c 2f 70 3e 0a 3c 2f 62 6f 64 79 3e 3c 2f 68 74 6d 6c 3e 0a Data Ascii: <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"><html><head><title>404 Not Found</title></head><body><h1>Not Found</h1><p>The requested URL /download/help/certificate/CertAppEnv_Setup.exe was not found on this server.</p></body></html>

Source: wget.exe, 00000003.00000002.2818310876.0000000001120000.00000004.00000020.00020000.00000000.sdmp, cmdline.out.0.dr	String found in binary or memory: http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exe
Source: wget.exe, 00000003.00000002.2818310876.0000000001120000.00000004.00000020.00020000.00000000.sdmp	String found in binary or memory: http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exe8
Source: wget.exe, 00000003.00000002.2818310876.0000000001120000.00000004.00000020.00020000.00000000.sdmp	String found in binary or memory: http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exeOF_P
Source: wget.exe, 00000003.00000002.2818310876.0000000001120000.00000004.00000020.00020000.00000000.sdmp	String found in binary or memory: http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exenuine-

Source: classification engine

Classification label: clean1.win@4/1@1/1

Source: C:\Windows\SysWOW64\cmd.exe

File created: C:\Users\user\Desktop\cmdline.out

Jump to behavior

Source: C:\Windows\SysWOW64\wget.exe

Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers

Jump to behavior

Source: unknown	Process created: C:\Windows\SysWOW64\cmd.exe C:\Windows\system32\cmd.exe /c wget -t 2 -v -T 60 -P "C:\Users\user\Desktop\download" --no-check-certificate --content-disposition --user-agent="Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko" "http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exe" > cmdline.out 2>&1
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\SysWOW64\wget.exe wget -t 2 -v -T 60 -P "C:\Users\user\Desktop\download" --no-check-certificate --content-disposition --user-agent="Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko" "http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exe"
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\SysWOW64\wget.exe wget -t 2 -v -T 60 -P "C:\Users\user\Desktop\download" --no-check-certificate --content-disposition --user-agent="Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko" "http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exe"	Jump to behavior

Source: C:\Windows\SysWOW64\cmd.exe	Section loaded: apphelp.dll	Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe	Section loaded: kernel.appcore.dll	Jump to behavior
Source: C:\Windows\SysWOW64\wget.exe	Section loaded: mswsock.dll	Jump to behavior
Source: C:\Windows\SysWOW64\wget.exe	Section loaded: dnsapi.dll	Jump to behavior
Source: C:\Windows\SysWOW64\wget.exe	Section loaded: iphlpapi.dll	Jump to behavior
Source: C:\Windows\SysWOW64\wget.exe	Section loaded: rasadhlp.dll	Jump to behavior
Source: C:\Windows\SysWOW64\wget.exe	Section loaded: fwpuclnt.dll	Jump to behavior

Source: wget.exe, 00000003.00000002.2818201642.0000000000B14000.00000004.00000020.00020000.00000000.sdmp

Binary or memory string: Hyper-V RAW%SystemRoot%\system32\mswsock.dll

Source: unknown	Process created: C:\Windows\SysWOW64\cmd.exe c:\windows\system32\cmd.exe /c wget -t 2 -v -t 60 -p "c:\users\user\desktop\download" --no-check-certificate --content-disposition --user-agent="mozilla/5.0 (windows nt 6.1; wow64; trident/7.0; as; rv:11.0) like gecko" "http://download.bjca.org.cn/download/help/certificate/certappenv_setup.exe" > cmdline.out 2>&1
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\SysWOW64\wget.exe wget -t 2 -v -t 60 -p "c:\users\user\desktop\download" --no-check-certificate --content-disposition --user-agent="mozilla/5.0 (windows nt 6.1; wow64; trident/7.0; as; rv:11.0) like gecko" "http://download.bjca.org.cn/download/help/certificate/certappenv_setup.exe"
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\SysWOW64\wget.exe wget -t 2 -v -t 60 -p "c:\users\user\desktop\download" --no-check-certificate --content-disposition --user-agent="mozilla/5.0 (windows nt 6.1; wow64; trident/7.0; as; rv:11.0) like gecko" "http://download.bjca.org.cn/download/help/certificate/certappenv_setup.exe"	Jump to behavior

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	Acquire Infrastructure	Valid Accounts	1 Command and Scripting Interpreter	1 DLL Side-Loading	1 Process Injection	1 Masquerading	OS Credential Dumping	1 Security Software Discovery	Remote Services	Data from Local System	3 Non-Application Layer Protocol	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	1 DLL Side-Loading	1 Process Injection	LSASS Memory	1 System Information Discovery	Remote Desktop Protocol	Data from Removable Media	3 Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	1 DLL Side-Loading	Security Account Manager	Query Registry	SMB/Windows Admin Shares	Data from Network Shared Drive	3 Ingress Tool Transfer	Automated Exfiltration	Data Encrypted for Impact

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Is Windows Process
Number of created Registry Values
Number of created Files
Visual Basic
Delphi
Java
.Net C# or VB.NET
C, C++ or other language
Is malicious
Internet

Source	Detection	Scanner	Label	Link
http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exe	0%	Avira URL Cloud	safe

Source	Detection	Scanner	Label
http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exenuine-	0%	Avira URL Cloud	safe
http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exe8	0%	Avira URL Cloud	safe
http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exeOF_P	0%	Avira URL Cloud	safe

Domains and IPs

Download Network PCAP: filtered – full

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
download.bjca.org.cn.w.kunlunca.com	61.170.79.113	true	false		unknown
download.bjca.org.cn	unknown	unknown	false		unknown

Contacted URLs

Name	Malicious	Antivirus Detection	Reputation
http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exe	false		unknown

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exenuine-	wget.exe, 00000003.00000002.2818310876.0000000001120000.00000004.00000020.00020000.00000000.sdmp	false	Avira URL Cloud: safe	unknown
http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exeOF_P	wget.exe, 00000003.00000002.2818310876.0000000001120000.00000004.00000020.00020000.00000000.sdmp	false	Avira URL Cloud: safe	unknown
http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exe8	wget.exe, 00000003.00000002.2818310876.0000000001120000.00000004.00000020.00020000.00000000.sdmp	false	Avira URL Cloud: safe	unknown

World Map of Contacted IPs

No. of IPs < 25%
25% < No. of IPs < 50%
50% < No. of IPs < 75%
75% < No. of IPs

Public IPs

IP	Domain	Country	Flag	ASN	ASN Name	Malicious
61.170.79.113	download.bjca.org.cn.w.kunlunca.com	China		4812	CHINANET-SH-APChinaTelecomGroupCN	false

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1671062
Start date and time:	2025-04-22 15:15:42 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 1m 30s
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	urldownload.jbs
Sample URL:	http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exe
Analysis system description:	Windows 11 23H2 with Office Professional Plus 2021, Chrome 131, Firefox 133, Adobe Reader DC 24, Java 8 Update 431, 7zip 24.09
Number of analysed new started processes analysed:	4
Number of new started drivers analysed:	0
Number of existing processes analysed:	0
Number of existing drivers analysed:	0
Number of injected processes analysed:	0
Technologies:	EGA enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Detection:	CLEAN
Classification:	clean1.win@4/1@1/1
Cookbook Comments:	Unable to download file

Warnings

Exclude process from analysis (whitelisted): dllhost.exe
Excluded IPs from analysis (whitelisted): 184.29.183.29
Excluded domains from analysis (whitelisted): fs.microsoft.com, ctldl.windowsupdate.com
Not all processes where analyzed, report is missing behavior information
VT rate limit hit for: http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exe

Process:	C:\Windows\SysWOW64\cmd.exe
File Type:	ASCII text, with CRLF line terminators
Category:	modified
Size (bytes):	399
Entropy (8bit):	5.139812615666659
Encrypted:	false
SSDEEP:	12:H0kwYkplktmLuoF3kplk6t1De5Rhh8ooB3v:roFMxePP8Zf
MD5:	3FAD9D182FEBF087A772191CF185726E
SHA1:	163BE3B283D926460F9C150B4FFC9F9EB1DE051E
SHA-256:	EA6E54E62D763E26621A757ED6DAB1E46F616F640689627A169BEF8D37715E45
SHA-512:	9CBE8798BC1FE3ACB49A77BF480FCD3527E0935647E086E3B5A69AFBC34960662DFF9F75BB974879F96B94551C2CD2626B6B4DF9478B1213AA39A1A72D9AACB7
Malicious:	false
Reputation:	low
Preview:	--2025-04-22 09:16:35-- http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exe..Resolving download.bjca.org.cn (download.bjca.org.cn)... 61.170.79.113, 61.170.79.107, 61.170.79.112, .....Connecting to download.bjca.org.cn (download.bjca.org.cn)\|61.170.79.113\|:80... connected...HTTP request sent, awaiting response... 404 Not Found..2025-04-22 09:16:37 ERROR 404: Not Found.....

Total Packets: 7
• 80 (HTTP)
• 53 (DNS)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Apr 22, 2025 15:16:37.090017080 CEST	60825	80	192.168.2.24	61.170.79.113
Apr 22, 2025 15:16:38.097575903 CEST	60825	80	192.168.2.24	61.170.79.113
Apr 22, 2025 15:16:38.382617950 CEST	80	60825	61.170.79.113	192.168.2.24
Apr 22, 2025 15:16:38.382702112 CEST	60825	80	192.168.2.24	61.170.79.113
Apr 22, 2025 15:16:38.383625031 CEST	60825	80	192.168.2.24	61.170.79.113
Apr 22, 2025 15:16:38.641097069 CEST	80	60825	61.170.79.113	192.168.2.24
Apr 22, 2025 15:16:38.641160011 CEST	60825	80	192.168.2.24	61.170.79.113
Apr 22, 2025 15:16:38.668365955 CEST	80	60825	61.170.79.113	192.168.2.24
Apr 22, 2025 15:16:38.849124908 CEST	80	60825	61.170.79.113	192.168.2.24
Apr 22, 2025 15:16:38.887326956 CEST	60825	80	192.168.2.24	61.170.79.113

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Apr 22, 2025 15:16:36.320318937 CEST	64788	53	192.168.2.24	1.1.1.1
Apr 22, 2025 15:16:37.084569931 CEST	53	64788	1.1.1.1	192.168.2.24

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Apr 22, 2025 15:16:36.320318937 CEST	192.168.2.24	1.1.1.1	0xa0a	Standard query (0)	download.bjca.org.cn	A (IP address)	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Apr 22, 2025 15:16:37.084569931 CEST	1.1.1.1	192.168.2.24	0xa0a	No error (0)	download.bjca.org.cn	download.bjca.org.cn.w.kunlunca.com		CNAME (Canonical name)	IN (0x0001)	false
Apr 22, 2025 15:16:37.084569931 CEST	1.1.1.1	192.168.2.24	0xa0a	No error (0)	download.bjca.org.cn.w.kunlunca.com		61.170.79.113	A (IP address)	IN (0x0001)	false
Apr 22, 2025 15:16:37.084569931 CEST	1.1.1.1	192.168.2.24	0xa0a	No error (0)	download.bjca.org.cn.w.kunlunca.com		61.170.79.107	A (IP address)	IN (0x0001)	false
Apr 22, 2025 15:16:37.084569931 CEST	1.1.1.1	192.168.2.24	0xa0a	No error (0)	download.bjca.org.cn.w.kunlunca.com		61.170.79.112	A (IP address)	IN (0x0001)	false
Apr 22, 2025 15:16:37.084569931 CEST	1.1.1.1	192.168.2.24	0xa0a	No error (0)	download.bjca.org.cn.w.kunlunca.com		61.170.79.114	A (IP address)	IN (0x0001)	false
Apr 22, 2025 15:16:37.084569931 CEST	1.1.1.1	192.168.2.24	0xa0a	No error (0)	download.bjca.org.cn.w.kunlunca.com		61.170.79.109	A (IP address)	IN (0x0001)	false
Apr 22, 2025 15:16:37.084569931 CEST	1.1.1.1	192.168.2.24	0xa0a	No error (0)	download.bjca.org.cn.w.kunlunca.com		61.170.79.108	A (IP address)	IN (0x0001)	false
Apr 22, 2025 15:16:37.084569931 CEST	1.1.1.1	192.168.2.24	0xa0a	No error (0)	download.bjca.org.cn.w.kunlunca.com		61.170.79.110	A (IP address)	IN (0x0001)	false
Apr 22, 2025 15:16:37.084569931 CEST	1.1.1.1	192.168.2.24	0xa0a	No error (0)	download.bjca.org.cn.w.kunlunca.com		61.170.79.111	A (IP address)	IN (0x0001)	false

HTTP Request Dependency Graph

download.bjca.org.cn

HTTP Packets

Session ID	Source IP	Source Port	Destination IP	Destination Port	PID	Process
0	192.168.2.24	60825	61.170.79.113	80	6968	C:\Windows\SysWOW64\wget.exe

Timestamp	Bytes transferred	Direction	Data
Apr 22, 2025 15:16:38.383625031 CEST	242	OUT	GET /download/help/certificate/CertAppEnv_Setup.exe HTTP/1.1 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko Accept: / Accept-Encoding: identity Host: download.bjca.org.cn Connection: Keep-Alive
Apr 22, 2025 15:16:38.849124908 CEST	820	IN	HTTP/1.1 404 Not Found Server: Tengine Content-Type: text/html; charset=iso-8859-1 Content-Length: 244 Connection: keep-alive Date: Tue, 22 Apr 2025 13:16:38 GMT Via: cache23.l2cn3130[123,122,404-1280,M], cache25.l2cn3130[124,0], cache25.l2cn3130[124,0], ens-cache13.cn6011[175,174,404-1280,M], ens-cache21.cn6011[179,0] Ali-Swift-Global-Savetime: 1745327798 X-Cache: MISS TCP_MISS dirn:-2:-2 X-Swift-Error: orig response 4XX error X-Swift-SaveTime: Tue, 22 Apr 2025 13:16:38 GMT X-Swift-CacheTime: 1 Timing-Allow-Origin: * EagleId: 3daa4f2917453277985257295e Data Raw: 3c 21 44 4f 43 54 59 50 45 20 48 54 4d 4c 20 50 55 42 4c 49 43 20 22 2d 2f 2f 49 45 54 46 2f 2f 44 54 44 20 48 54 4d 4c 20 32 2e 30 2f 2f 45 4e 22 3e 0a 3c 68 74 6d 6c 3e 3c 68 65 61 64 3e 0a 3c 74 69 74 6c 65 3e 34 30 34 20 4e 6f 74 20 46 6f 75 6e 64 3c 2f 74 69 74 6c 65 3e 0a 3c 2f 68 65 61 64 3e 3c 62 6f 64 79 3e 0a 3c 68 31 3e 4e 6f 74 20 46 6f 75 6e 64 3c 2f 68 31 3e 0a 3c 70 3e 54 68 65 20 72 65 71 75 65 73 74 65 64 20 55 52 4c 20 2f 64 6f 77 6e 6c 6f 61 64 2f 68 65 6c 70 2f 63 65 72 74 69 66 69 63 61 74 65 2f 43 65 72 74 41 70 70 45 6e 76 5f 53 65 74 75 70 2e 65 78 65 20 77 61 73 20 6e 6f 74 20 66 6f 75 6e 64 20 6f 6e 20 74 68 69 73 20 73 65 72 76 65 72 2e 3c 2f 70 3e 0a 3c 2f 62 6f 64 79 3e 3c 2f 68 74 6d 6c 3e 0a Data Ascii: <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"><html><head><title>404 Not Found</title></head><body><h1>Not Found</h1><p>The requested URL /download/help/certificate/CertAppEnv_Setup.exe was not found on this server.</p></body></html>

Statistics

CPU Usage

• cmd.exe
• conhost.exe
• wget.exe

Click to jump to process

Memory Usage

• cmd.exe
• conhost.exe
• wget.exe

Click to jump to process

High Level Behavior Distribution

• File
• Network

Click to dive into process behavior distribution

Click to jump to process

Target ID:	0
Start time:	09:16:34
Start date:	22/04/2025
Path:	C:\Windows\SysWOW64\cmd.exe
Wow64 process (32bit):	true
Commandline:	C:\Windows\system32\cmd.exe /c wget -t 2 -v -T 60 -P "C:\Users\user\Desktop\download" --no-check-certificate --content-disposition --user-agent="Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko" "http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exe" > cmdline.out 2>&1
Imagebase:	0xda0000
File size:	245'760 bytes
MD5 hash:	7B2C2B671D3F48A01B334A0070DEC0BD
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	low
Has exited:	true

Show Windows behavior

Target ID:	1
Start time:	09:16:34
Start date:	22/04/2025
Path:	C:\Windows\System32\conhost.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Imagebase:	0x7ff7bdef0000
File size:	1'040'384 bytes
MD5 hash:	9698384842DA735D80D278A427A229AB
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	low
Has exited:	true

Show Windows behavior

Target ID:	3
Start time:	09:16:35
Start date:	22/04/2025
Path:	C:\Windows\SysWOW64\wget.exe
Wow64 process (32bit):	true
Commandline:	wget -t 2 -v -T 60 -P "C:\Users\user\Desktop\download" --no-check-certificate --content-disposition --user-agent="Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko" "http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exe"
Imagebase:	0x400000
File size:	3'895'184 bytes
MD5 hash:	3DADB6E2ECE9C4B3E1E322E617658B60
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	low
Has exited:	true

Show Windows behavior

Description:	Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries. These interfaces and languages provide ways of interacting with computer systems and are a common feature across many different platforms. Most systems come with some built-in command-line interface and scripting capabilities, for example, macOS and Linux distributions include some flavor of Unix Shell while Windows installations include the Windows Command Shell and PowerShell .
Tactics:	Execution
Data Sources:	Command: Command Execution, Module: Module Load, Process: Process Creation, Process: Process Metadata, Script: Script Execution
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Network, Office 365, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may execute their own malicious payloads by side-loading DLLs. Similar to DLL Search Order Hijacking , side-loading involves hijacking which DLL a program loads. But rather than just planting the DLL within the search order of a program then waiting for the victim application to be invoked, adversaries may directly side-load their payloads by planting then invoking a legitimate application that executes their payload(s).
Tactics:	Defense Evasion, Persistence, Privilege Escalation
Data Sources:	File: File Creation, File: File Modification, Module: Module Load, Process: Process Creation
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may inject code into processes in order to evade process-based defenses as well as possibly elevate privileges. Process injection is a method of executing arbitrary code in the address space of a separate live process. Running code in the context of another process may allow access to the process's memory, system/network resources, and possibly elevated privileges. Execution via process injection may also evade detection from security products since the execution is masked under a legitimate process.
Tactics:	Defense Evasion, Privilege Escalation
Data Sources:	File: File Metadata, File: File Modification, Module: Module Load, Process: OS API Execution, Process: Process Access, Process: Process Metadata, Process: Process Modification
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to manipulate features of their artifacts to make them appear legitimate or benign to users and/or security tools. Masquerading occurs when the name or location of an object, legitimate or malicious, is manipulated or abused for the sake of evading defenses and observation. This may include manipulating file metadata, tricking users into misidentifying the file type, and giving legitimate task or service names.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Metadata, File: File Modification, Image: Image Metadata, Process: OS API Execution, Process: Process Creation, Process: Process Metadata, Scheduled Job: Scheduled Job Metadata, Scheduled Job: Scheduled Job Modification, Service: Service Creation, Service: Service Metadata
Platforms:	Containers, Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Firewall: Firewall Enumeration, Firewall: Firewall Metadata, Process: OS API Execution, Process: Process Creation
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	IaaS, Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may use an OSI non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive.Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using OSI application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may transfer tools or other files from an external system into a compromised environment. Tools or files may be copied from an external adversary-controlled system to the victim network through the command and control channel or through alternate protocols such as ftp . Once present, adversaries may also transfer/spread tools between victim devices within a compromised environment (i.e. Lateral Tool Transfer ).
Tactics:	Command and Control
Data Sources:	Command: Command Execution, File: File Creation, Network Traffic: Network Connection Creation, Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Windows Analysis Report http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exe

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Configuration

Yara Signatures

Sigma Signatures

System Summary

Suricata Signatures

Joe Sandbox Signatures

Networking

System Summary

Malware Analysis System Evasion

HIPS / PFW / Operating System Protection Evasion

Mitre Att&ck Matrix

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Unpacked PE Files

Domains

URLs

Domains and IPs

Contacted Domains

Contacted URLs

URLs from Memory and Binaries

World Map of Contacted IPs

Public IPs

General Information

Warnings

Simulations

Behavior and APIs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

C:\Users\user\Desktop\cmdline.out

Static File Info

Network Behavior

Network Port Distribution

TCP Packets

UDP Packets

DNS Queries

DNS Answers

HTTP Request Dependency Graph

HTTP Packets

Statistics

CPU Usage

Memory Usage

High Level Behavior Distribution

back

Behavior

System Behavior

Analysis Process: cmd.exePID: 6548, Parent PID: 4480

General

File Activities

File Opened

File Created

File Attributes Queried

Volume Information Queried

Section Activities

Sections loaded by Windows

Mutex Activities

Mutex Created

Process Activities

Windows Analysis Report
http://download.bjca.org.cn/download/help/certificate/CertAppEnv_Setup.exe