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Windows
Analysis Report
Jjfmcz1Hsz.exe
Overview
General Information
Detection
FormBook, GuLoader
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Multi AV Scanner detection for submitted file
Yara detected FormBook
Malicious sample detected (through community Yara rule)
System process connects to network (likely due to code injection or exploit)
Antivirus detection for URL or domain
Yara detected GuLoader
Snort IDS alert for network traffic
Sample uses process hollowing technique
Tries to steal Mail credentials (via file / registry access)
Maps a DLL or memory area into another process
Writes to foreign memory regions
Tries to detect Any.run
Injects a PE file into a foreign processes
Queues an APC in another process (thread injection)
Modifies the context of a thread in another process (thread injection)
C2 URLs / IPs found in malware configuration
Tries to harvest and steal browser information (history, passwords, etc)
Uses 32bit PE files
Yara signature match
Antivirus or Machine Learning detection for unpacked file
May sleep (evasive loops) to hinder dynamic analysis
Contains functionality to shutdown / reboot the system
Uses code obfuscation techniques (call, push, ret)
Creates files inside the system directory
Internet Provider seen in connection with other malware
Detected potential crypto function
Found potential string decryption / allocating functions
Sample execution stops while process was sleeping (likely an evasion)
JA3 SSL client fingerprint seen in connection with other malware
Contains functionality to call native functions
Contains functionality to dynamically determine API calls
HTTP GET or POST without a user agent
Contains functionality for execution timing, often used to detect debuggers
Enables debug privileges
Found inlined nop instructions (likely shell or obfuscated code)
Sample file is different than original file name gathered from version info
Drops PE files
Tries to load missing DLLs
Contains functionality to read the PEB
Checks if the current process is being debugged
PE / OLE file has an invalid certificate
Found large amount of non-executed APIs
Uses Microsoft's Enhanced Cryptographic Provider
Creates a process in suspended mode (likely to inject code)
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains functionality for read data from the clipboard
Classification
- System is w10x64native
- Jjfmcz1Hsz.exe (PID: 2548 cmdline:
C:\Users\u ser\Deskto p\Jjfmcz1H sz.exe MD5: F4CAD3F0195D098CED41C4926A5695C2) - Jjfmcz1Hsz.exe (PID: 2000 cmdline:
C:\Users\u ser\Deskto p\Jjfmcz1H sz.exe MD5: F4CAD3F0195D098CED41C4926A5695C2) - RAVCpl64.exe (PID: 7608 cmdline:
"C:\Progra m Files\Re altek\Audi o\HDA\RAVC pl64.exe" -s MD5: 731FB4B2E5AFBCADAABB80D642E056AC) - help.exe (PID: 3568 cmdline:
C:\Windows \SysWOW64\ help.exe MD5: DD40774E56D4C44B81F2DFA059285E75) - explorer.exe (PID: 4696 cmdline:
C:\Windows \Explorer. EXE MD5: 5EA66FF5AE5612F921BC9DA23BAC95F7) - firefox.exe (PID: 8880 cmdline:
C:\Program Files\Moz illa Firef ox\Firefox .exe MD5: FA9F4FC5D7ECAB5A20BF7A9D1251C851)
- cleanup
{"C2 list": ["www.xiaoxiuzhen.com/nqhc/"]}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_FormBook | Yara detected FormBook | Joe Security | ||
Formbook | detect Formbook in memory | JPCERT/CC Incident Response Group |
| |
Formbook_1 | autogenerated rule brought to you by yara-signator | Felix Bilstein - yara-signator at cocacoding dot com |
| |
Windows_Trojan_Formbook_1112e116 | unknown | unknown |
| |
JoeSecurity_GuLoader_3 | Yara detected GuLoader | Joe Security | ||
Click to see the 28 entries |
⊘No Sigma rule has matched
Timestamp: | 192.168.11.20103.63.2.17549870802031412 12/05/22-15:16:29.824802 |
SID: | 2031412 |
Source Port: | 49870 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20185.101.158.23949883802031453 12/05/22-15:17:12.752525 |
SID: | 2031453 |
Source Port: | 49883 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20103.63.2.17549870802031453 12/05/22-15:16:29.824802 |
SID: | 2031453 |
Source Port: | 49870 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20192.185.32.15749850802031449 12/05/22-15:15:32.371812 |
SID: | 2031449 |
Source Port: | 49850 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20192.185.32.15749912802031453 12/05/22-15:18:48.078621 |
SID: | 2031453 |
Source Port: | 49912 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20185.101.158.23949883802031412 12/05/22-15:17:12.752525 |
SID: | 2031412 |
Source Port: | 49883 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20103.63.2.17549938802031449 12/05/22-15:19:44.781098 |
SID: | 2031449 |
Source Port: | 49938 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.201.1.1.163234532014169 12/05/22-15:15:00.577362 |
SID: | 2014169 |
Source Port: | 63234 |
Destination Port: | 53 |
Protocol: | UDP |
Classtype: | Potentially Bad Traffic |
Timestamp: | 192.168.11.20192.185.32.15749912802031449 12/05/22-15:18:48.078621 |
SID: | 2031449 |
Source Port: | 49912 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20194.245.148.18949879802031449 12/05/22-15:17:01.537708 |
SID: | 2031449 |
Source Port: | 49879 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.2045.130.41.2449840802031449 12/05/22-15:15:06.993468 |
SID: | 2031449 |
Source Port: | 49840 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20103.63.2.17549870802031449 12/05/22-15:16:29.824802 |
SID: | 2031449 |
Source Port: | 49870 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.2045.130.41.2449904802031453 12/05/22-15:18:23.919550 |
SID: | 2031453 |
Source Port: | 49904 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20192.185.32.15749850802031453 12/05/22-15:15:32.371812 |
SID: | 2031453 |
Source Port: | 49850 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.2045.130.41.2449904802031412 12/05/22-15:18:23.919550 |
SID: | 2031412 |
Source Port: | 49904 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20192.185.32.15749850802031412 12/05/22-15:15:32.371812 |
SID: | 2031412 |
Source Port: | 49850 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20103.63.2.17549938802031453 12/05/22-15:19:44.781098 |
SID: | 2031453 |
Source Port: | 49938 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20185.101.158.23949883802031449 12/05/22-15:17:12.752525 |
SID: | 2031449 |
Source Port: | 49883 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.2045.130.41.2449840802031412 12/05/22-15:15:06.993468 |
SID: | 2031412 |
Source Port: | 49840 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20192.185.32.15749912802031412 12/05/22-15:18:48.078621 |
SID: | 2031412 |
Source Port: | 49912 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20103.63.2.17549938802031412 12/05/22-15:19:44.781098 |
SID: | 2031412 |
Source Port: | 49938 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.2045.130.41.2449840802031453 12/05/22-15:15:06.993468 |
SID: | 2031453 |
Source Port: | 49840 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.2045.130.41.2449904802031449 12/05/22-15:18:23.919550 |
SID: | 2031449 |
Source Port: | 49904 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20194.245.148.18949879802031453 12/05/22-15:17:01.537708 |
SID: | 2031453 |
Source Port: | 49879 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20194.245.148.18949879802031412 12/05/22-15:17:01.537708 |
SID: | 2031412 |
Source Port: | 49879 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Virustotal: | Perma Link | ||
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Source: | Code function: | 19_2_02F44640 |
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Source: | Registry value created: | Jump to behavior |
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Source: | Code function: | 2_2_00405FFD | |
Source: | Code function: | 2_2_0040559B | |
Source: | Code function: | 2_2_00402688 | |
Source: | Code function: | 19_2_02F42C80 |
Source: | Code function: | 19_2_02F38880 | |
Source: | Code function: | 19_2_02F3887F |
Networking |
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Source: | Network Connect: | Jump to behavior | ||
Source: | Network Connect: | Jump to behavior | ||
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Source: | Network Connect: | Jump to behavior |
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