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Windows
Analysis Report
jU0hAXFL0k.exe
Overview
General Information
Detection
FormBook, GuLoader
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Found malware configuration
Multi AV Scanner detection for submitted file
Yara detected FormBook
Malicious sample detected (through community Yara rule)
Antivirus / Scanner detection for submitted sample
System process connects to network (likely due to code injection or exploit)
Antivirus detection for URL or domain
Multi AV Scanner detection for domain / URL
Yara detected GuLoader
Snort IDS alert for network traffic
Sample uses process hollowing technique
Maps a DLL or memory area into another process
Modifies the prolog of user mode functions (user mode inline hooks)
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
Uses 32bit PE files
Yara signature match
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to query locales information (e.g. system language)
May sleep (evasive loops) to hinder dynamic analysis
Contains functionality to shutdown / reboot the system
Uses code obfuscation techniques (call, push, ret)
Internet Provider seen in connection with other malware
Detected potential crypto function
Found potential string decryption / allocating functions
Contains functionality to launch a process as a different user
Sample execution stops while process was sleeping (likely an evasion)
Stores files to the Windows start menu directory
Contains functionality to call native functions
Contains functionality to communicate with device drivers
Contains functionality to dynamically determine API calls
HTTP GET or POST without a user agent
Contains functionality which may be used to detect a debugger (GetProcessHeap)
IP address seen in connection with other malware
Contains functionality for execution timing, often used to detect debuggers
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
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
Uses a known web browser user agent for HTTP communication
Checks if the current process is being debugged
PE / OLE file has an invalid certificate
Found large amount of non-executed APIs
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
- jU0hAXFL0k.exe (PID: 6044 cmdline:
C:\Users\u ser\Deskto p\jU0hAXFL 0k.exe MD5: 6E8215EEE3034D6DCF18D79D397E5715) - jU0hAXFL0k.exe (PID: 8580 cmdline:
C:\Users\u ser\Deskto p\jU0hAXFL 0k.exe MD5: 6E8215EEE3034D6DCF18D79D397E5715) - explorer.exe (PID: 4928 cmdline:
C:\Windows \Explorer. EXE MD5: 5EA66FF5AE5612F921BC9DA23BAC95F7) - autofmt.exe (PID: 6440 cmdline:
C:\Windows \SysWOW64\ autofmt.ex e MD5: ABC9F7DAB410FE452D2D90C9960077BE) - cmd.exe (PID: 9200 cmdline:
C:\Windows \SysWOW64\ cmd.exe MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - cmd.exe (PID: 8460 cmdline:
/c del "C: \Users\use r\Desktop\ jU0hAXFL0k .exe" MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - conhost.exe (PID: 6112 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 81CA40085FC75BABD2C91D18AA9FFA68)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
Formbook, Formbo | FormBook contains a unique crypter RunPE that has unique behavioral patterns subject to detection. It was initially called "Babushka Crypter" by Insidemalware. |
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
CloudEyE, GuLoader | CloudEyE (initially named GuLoader) is a small VB5/6 downloader. It typically downloads RATs/Stealers, such as Agent Tesla, Arkei/Vidar, Formbook, Lokibot, Netwire and Remcos, often but not always from Google Drive. The downloaded payload is xored. | No Attribution |
{"C2 list": ["www.nightoracle.com/rs10/"], "decoy": ["starryallure.com", "mania-31.online", "baba-bt-top1.buzz", "jwilkinsartscapeinc.com", "tallerhazop.com", "lulu013.com", "pontoimediato.com", "stmc-company.com", "thesoftwarepractitioner.com", "makemoneywithsherrie.com", "algaroba.com", "smartbookmarks.info", "burneysaw.com", "fftsxxx.top", "hvr998.com", "sofisticars.store", "clickit.fun", "couches-sofas-16683.bond", "ikkasolutions.com", "oakvisa.com", "totalkfood.com", "guillaumecarreau.com", "biomagnetismocolombia.com", "jrszhiboz.com", "rewmio.xyz", "willowliy.com", "calm-plants.com", "robertjamesfineclothing.com", "wgardsgm.live", "dngbdk9jpusxpwr.com", "slycepicklegear.com", "mtauratarnt.com", "simolified.com", "mekkamochi.com", "deeprootedleader.com", "container-houses-vn.click", "roundaboutlogistics.com", "m-baer.com", "electric-cars-19095.bond", "destinydinos.com", "taxretentionstrategiesgroup.com", "zg9tywlubmftzw5ldzi0mdm.com", "cleaning-products-29334.bond", "metaastrologia.com", "practicaloutsource.com", "w1nb74.top", "just-one.info", "cryptarrow.com", "omarshafie.online", "latitudeinformatics.com", "fhstbanknigeria.com", "hdlive7.live", "laserhairremovalkit.com", "into-org.com", "kzjsm.com", "juara102-azura.com", "digitsum.com", "cabins-prefab.online", "allisonparlinart.com", "cpsgrantstream.com", "everythingbutthetruck.com", "w6k3v.com", "alfarizkigrup.com", "gs3ekdj3ixe.asia"]}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
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 |
| |
Click to see the 16 entries |
⊘No Sigma rule has matched
Timestamp: | 192.168.11.3023.227.38.7450130802031412 10/16/23-11:30:34.341610 |
SID: | 2031412 |
Source Port: | 50130 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.303.33.130.19050138802031412 10/16/23-11:32:59.120800 |
SID: | 2031412 |
Source Port: | 50138 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.3023.227.38.7450133802031412 10/16/23-11:31:15.754112 |
SID: | 2031412 |
Source Port: | 50133 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.30104.21.19.22750127802031412 10/16/23-11:29:13.108417 |
SID: | 2031412 |
Source Port: | 50127 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.301.1.1.158176532023883 10/16/23-11:29:33.045985 |
SID: | 2023883 |
Source Port: | 58176 |
Destination Port: | 53 |
Protocol: | UDP |
Classtype: | Potentially Bad Traffic |
Timestamp: | 192.168.11.30104.247.82.5150142802031412 10/16/23-11:34:01.586007 |
SID: | 2031412 |
Source Port: | 50142 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.3066.96.162.13350134802031412 10/16/23-11:31:36.580336 |
SID: | 2031412 |
Source Port: | 50134 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.30208.91.197.2750146802031412 10/16/23-11:34:22.055359 |
SID: | 2031412 |
Source Port: | 50146 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.30172.67.210.17650147802031412 10/16/23-11:34:44.313076 |
SID: | 2031412 |
Source Port: | 50147 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.30104.247.82.9050135802031412 10/16/23-11:31:57.444382 |
SID: | 2031412 |
Source Port: | 50135 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.30103.224.212.21050129802031412 10/16/23-11:29:52.922186 |
SID: | 2031412 |
Source Port: | 50129 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.30172.67.193.17750141802031412 10/16/23-11:33:40.532597 |
SID: | 2031412 |
Source Port: | 50141 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.30172.67.148.6850128802031412 10/16/23-11:29:33.638445 |
SID: | 2031412 |
Source Port: | 50128 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.30103.72.68.12850125802855192 10/16/23-11:27:46.501036 |
SID: | 2855192 |
Source Port: | 50125 |
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: | Malware Configuration Extractor: |
Source: | Virustotal: | Perma Link | ||
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Source: | Code function: | 5_2_004062DD | |
Source: | Code function: | 5_2_004057A2 | |
Source: | Code function: | 5_2_00402765 | |
Source: | Code function: | 15_2_00D7589A | |
Source: | Code function: | 15_2_00D74EC1 | |
Source: | Code function: | 15_2_00D83E66 | |
Source: | Code function: | 15_2_00D70207 | |
Source: | Code function: | 15_2_00D6532E |
Source: | Code function: | 15_2_02DE6CEB |
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