MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3f58633772463308cda1bb469e94c9d320877e59c939e57be81cf5457b7ac31f. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



Formbook


Vendor detections: 14


Intelligence 14 IOCs YARA File information Comments

SHA256 hash: 3f58633772463308cda1bb469e94c9d320877e59c939e57be81cf5457b7ac31f
SHA3-384 hash: e0bfc41082a86aecd163bb87f0c06ff213d0ab0fbfcc742dcf319f24ee26c45a6d02313f488dfb693ec2af65b76e67a2
SHA1 hash: 0d41c21e0d56e93effe39a8bd25b2ec59dc1bb6f
MD5 hash: f99c75172182d149df858e3588995bd5
humanhash: eighteen-maine-video-network
File name:SecuriteInfo.com.Trojan.PackedNET.2617.23814.24692
Download: download sample
Signature Formbook
File size:856'064 bytes
First seen:2023-12-25 13:13:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:t6XUVU2qfnQa8gHkQ8veoCml0vaevxa2zc5JEN3PFtWmAMt6i4LST:tbqfjELGoCml0vaevxaqc5J+tkSt6t
TLSH T1A805AF3D5BBF1227CD67C6BBCBD8DC27B15084AB3C11EA6495C743AD5372A42248326E
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
336
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
SecuriteInfo.com.Trojan.PackedNET.2617.23814.24692
Verdict:
Malicious activity
Analysis date:
2023-12-25 13:15:19 UTC
Tags:
formbook xloader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1366875 Sample: SecuriteInfo.com.Trojan.Pac... Startdate: 25/12/2023 Architecture: WINDOWS Score: 100 48 www.zenithspectra.xyz 2->48 50 www.xsemckm.sbs 2->50 52 11 other IPs or domains 2->52 62 Snort IDS alert for network traffic 2->62 64 Multi AV Scanner detection for domain / URL 2->64 66 Malicious sample detected (through community Yara rule) 2->66 70 9 other signatures 2->70 10 mUubNKGYrxLnd.exe 5 2->10         started        13 SecuriteInfo.com.Trojan.PackedNET.2617.23814.24692.exe 7 2->13         started        signatures3 68 Performs DNS queries to domains with low reputation 48->68 process4 file5 80 Multi AV Scanner detection for dropped file 10->80 82 Machine Learning detection for dropped file 10->82 84 Injects a PE file into a foreign processes 10->84 16 mUubNKGYrxLnd.exe 10->16         started        19 schtasks.exe 1 10->19         started        44 C:\Users\user\AppData\...\mUubNKGYrxLnd.exe, PE32 13->44 dropped 46 C:\Users\user\AppData\Local\...\tmpD8C6.tmp, XML 13->46 dropped 86 Uses schtasks.exe or at.exe to add and modify task schedules 13->86 88 Adds a directory exclusion to Windows Defender 13->88 21 powershell.exe 23 13->21         started        23 schtasks.exe 1 13->23         started        25 SecuriteInfo.com.Trojan.PackedNET.2617.23814.24692.exe 13->25         started        signatures6 process7 signatures8 60 Maps a DLL or memory area into another process 16->60 27 rDRpHFHrwvQdxW.exe 16->27 injected 31 conhost.exe 19->31         started        33 conhost.exe 21->33         started        35 conhost.exe 23->35         started        37 WerFault.exe 21 16 25->37         started        process9 dnsIp10 54 krystas.com 50.87.145.7, 49751, 49752, 49754 UNIFIEDLAYER-AS-1US United States 27->54 56 www.snap-em.com 217.160.0.45, 49760, 49761, 49762 ONEANDONE-ASBrauerstrasse48DE Germany 27->56 58 7 other IPs or domains 27->58 90 Maps a DLL or memory area into another process 27->90 39 mshta.exe 13 27->39         started        signatures11 process12 signatures13 72 Tries to steal Mail credentials (via file / registry access) 39->72 74 Tries to harvest and steal browser information (history, passwords, etc) 39->74 76 Writes to foreign memory regions 39->76 78 2 other signatures 39->78 42 firefox.exe 39->42         started        process14
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-12-25 13:14:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
18 of 23 (78.26%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Unpacked files
SH256 hash:
a95eec686f2f85ea5aa01efc491b780c7c02b8ee77ea2ded069e39a2418e6494
MD5 hash:
0e9b855f2224fbd55a223c2373cbbcb5
SHA1 hash:
ea9d6dd625b713167dd8dd70fb0a3a203033ac9f
SH256 hash:
3bde6b71c6ad3571b84306cbb4c3e0ca6bf45eee1f19fc7592bb4afad7c44df0
MD5 hash:
75958fdad612b366837816adcf9d0e96
SHA1 hash:
88ec33601498a45c0a94ebedc0151f4c2a546d63
SH256 hash:
2af7e4e790f61b05899b41211d308f54e70016420b3ef7d5e31d40ad5cc36b47
MD5 hash:
9e522f8c677aa9941bb8a4b29765871b
SHA1 hash:
7c75084f4b6525ae20c18a752cb310db20cc5eb0
SH256 hash:
21afe82a0b71ee589c26f32dc88e0a6e22817f21194b2a83f1807c6cecc8c818
MD5 hash:
440bb4db146ccb1161ac2bcf365d7676
SHA1 hash:
506eda511b46df6e95d86861e70fda81307f8623
SH256 hash:
2100db320e230cae810206b0680012b69dbfec5f3234d347c3133ab40af38668
MD5 hash:
2158cb3461aaf80043a8d1ba20eff265
SHA1 hash:
1b750132b1d4877a4f07e5f9b48ceb34b9e66a2e
SH256 hash:
3f58633772463308cda1bb469e94c9d320877e59c939e57be81cf5457b7ac31f
MD5 hash:
f99c75172182d149df858e3588995bd5
SHA1 hash:
0d41c21e0d56e93effe39a8bd25b2ec59dc1bb6f
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Comments