MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 831fb5c161081d10c2e952ef793f5db28c5aba8b7e0e858aa1e755481b875baf. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 831fb5c161081d10c2e952ef793f5db28c5aba8b7e0e858aa1e755481b875baf
SHA3-384 hash: 99b7ce190f91497d4da717f9a79fd866f1ac57724e92d12e50f7934062a3a2884452a9aefc26183ae7716e239b93d204
SHA1 hash: 339521b11551e9bbf904a285e93b2df47976211d
MD5 hash: 293ae7cd5307ce44ec93d37f106678c6
humanhash: mirror-enemy-neptune-diet
File name:SecuriteInfo.com.Trojan.PackedNET.2211.25311.32209
Download: download sample
Signature Formbook
Create hunting rule
File size:695'808 bytes
First seen:2023-11-06 07:17:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'743 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:3jgjjtLBnkRP7WVPAVBmpcyilj8OopBTEDFehTdwo/egW3:3jgjj9MKV8mp4otBTEJ6tmg
TLSH T131E4F041F26C5FABD87693FA4821910843B6BBAB103DD74A1CF6B8C714B5BD10986F27
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
319
Origin country :
FR FR
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/458157/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
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SecuriteInfo.com.Trojan.PackedNET.2211.25311.32209.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed remcos
Link:
https://www.filescan.io/uploads/6548932f993fbf888b6610b5/reports/05300ae9-18b7-40e5-bba6-770e928ddef4/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/831fb5c161081d10c2e952ef793f5db28c5aba8b7e0e858aa1e755481b875baf
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0bbf2d3c-cd53-4a22-91ff-c37f08ce1b90
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1337438
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/831fb5c161081d10c2e952ef793f5db28c5aba8b7e0e858aa1e755481b875baf
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/831fb5c161081d10c2e952ef793f5db28c5aba8b7e0e858aa1e755481b875baf/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-07-28 21:36:56 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qmp3lqlbbaorbqxjklxxsp25wkgfvoulpyhilcvb45kuqg4hloxq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/231106-h4x77sbd37/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
e19264c74d7e9e7bdb1285d3ee5e917860eeeb9fe8687b32db67706eaa31281a
MD5 hash:
542ef80ceb62960eb33fbe6032e7d61c
SHA1 hash:
6e68147757bfb122d5915751ec99e454ee46923d
Detections:
XLoader
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win_formbook_w0
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win_formbook_auto
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win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/e207cb15-a1a9-469b-98e9-f9777d2419c8/
Parent samples :
2fe516e9dac323f21ac793310c22d151e6d95079a59cc99ed6cad79691901c26
f2674b3bee2f8ae1a08576a04c6d301e58f33a5c6456d32e09bde8e7997479a1
4ff429625da9915e133c7c495e85cd4235813784fbc251d7259db33c77b81f29
bfb1e4ae02e8f53a6d2023eeda4399be5502b9ab99770c9c3e4bfde0548a459b
490129df3b9f148b27f875a33d9e4d584a3470250d46b5ef5bfee336644081b0
831fb5c161081d10c2e952ef793f5db28c5aba8b7e0e858aa1e755481b875baf
SH256 hash:
11b0695e4b2ff83ae2454447092e1ca84581d3341dba1433fba718f13851e575
MD5 hash:
18462fcdfc6d9057e79fed9ef4d57d79
SHA1 hash:
427f69305ee749e27fd865cb220a2a79d5c037a0
Link:
https://www.unpac.me/results/e207cb15-a1a9-469b-98e9-f9777d2419c8/
SH256 hash:
2a79a417b8219faf68290b8f03912e71f780fdc2de43d7dfc019c22e9d7d0d3e
MD5 hash:
4644bd21b5353a548c61fe71cb075fd5
SHA1 hash:
fc76f8966d8d871a527a8ecac9803c2003c2b1cd
Link:
https://www.unpac.me/results/e207cb15-a1a9-469b-98e9-f9777d2419c8/
SH256 hash:
7c743d979549f931d7101d1a14c14841ff47c848a3f30e31882d0d958bf5f941
MD5 hash:
508ba12479b3d78edb93f63b40ab3b7f
SHA1 hash:
d72b842c46546e4e494c9338b530e305dae1d5d2
Link:
https://www.unpac.me/results/e207cb15-a1a9-469b-98e9-f9777d2419c8/
SH256 hash:
d2db3a39c43192394c8027ef81579a6415f5cd8174e1c313e9e6c423a5c9aca3
MD5 hash:
1e1e24d9f1fdf950098b3fe7c2226b12
SHA1 hash:
6e22de44204b86b81a88349831edd1595ab26a0b
Link:
https://www.unpac.me/results/e207cb15-a1a9-469b-98e9-f9777d2419c8/
SH256 hash:
831fb5c161081d10c2e952ef793f5db28c5aba8b7e0e858aa1e755481b875baf
MD5 hash:
293ae7cd5307ce44ec93d37f106678c6
SHA1 hash:
339521b11551e9bbf904a285e93b2df47976211d
Link:
https://www.unpac.me/results/e207cb15-a1a9-469b-98e9-f9777d2419c8/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/831fb5c161081d10c2e952ef793f5db28c5aba8b7e0e858aa1e755481b875baf

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/458157/

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