MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ab21a3f6d5c1c6660c328a2747a18b814babd78149042906e1725f5029d7a444. 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: 10


Intelligence 10 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ab21a3f6d5c1c6660c328a2747a18b814babd78149042906e1725f5029d7a444
SHA3-384 hash: a269a15653ce61e0ac2c0535c6f4d99c2e07b6212038a01b11bcfe2ba5d603f5c382e444ce1752694a7ce3b399f1d985
SHA1 hash: 2b554688a8b7c8fb3aeaf80fe29afdbdd2f0525d
MD5 hash: 836a64a336ec4dc06ef7368b4c4bfcbf
humanhash: johnny-magazine-steak-mango
File name:ab21a3f6d5c1c6660c328a2747a18b814babd78149042906e1725f5029d7a444
Download: download sample
Signature Formbook
Create hunting rule
File size:645'632 bytes
First seen:2023-10-16 08:08:59 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:EvofAf6+vHw5DO6AkjvOSf85bzSMKKFOAMXjMAh6hKuxkQ2MFuU:EvofUHcO5sOSfybzMKrM4hhKuxd
Threatray 70 similar samples on MalwareBazaar
TLSH T181D41241B27E375BE8B687F1A541B5020BB0953724B6E3015DEEB0EB68A5B001BD7F17
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 pmmkowalczyk1111
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
304
Origin country :
PL PL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ab21a3f6d5c1c6660c328a2747a18b814babd78149042906e1725f5029d7a444
Verdict:
No threats detected
Analysis date:
2023-10-16 08:09:11 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/73cc5425-66b2-4a7a-8b2d-8ee867ccdbe2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/454738/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/652cef9f5da218a42f50fb58/reports/b23f658a-93a6-4094-ae1c-7b6456652d6f/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/ab21a3f6d5c1c6660c328a2747a18b814babd78149042906e1725f5029d7a444
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/52eedb6d-c251-43b7-93f3-9c546636e0a4
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1326263
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1326263 Sample: N4ZATxYR20.exe Startdate: 16/10/2023 Architecture: WINDOWS Score: 92 28 Malicious sample detected (through community Yara rule) 2->28 30 Multi AV Scanner detection for submitted file 2->30 32 Yara detected FormBook 2->32 34 3 other signatures 2->34 9 N4ZATxYR20.exe 3 2->9         started        process3 signatures4 36 Injects a PE file into a foreign processes 9->36 12 N4ZATxYR20.exe 9->12         started        process5 signatures6 38 Maps a DLL or memory area into another process 12->38 40 Queues an APC in another process (thread injection) 12->40 15 oQgAGeARmgnMJuzWdJGlfAnfbYPgPY.exe 12->15 injected process7 process8 17 help.exe 15->17         started        20 autoconv.exe 15->20         started        signatures9 26 Maps a DLL or memory area into another process 17->26 22 explorer.exe 2 17->22 injected 24 oQgAGeARmgnMJuzWdJGlfAnfbYPgPY.exe 17->24 injected process10
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ab21a3f6d5c1c6660c328a2747a18b814babd78149042906e1725f5029d7a444
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ab21a3f6d5c1c6660c328a2747a18b814babd78149042906e1725f5029d7a444/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-10-12 13:12:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
15 of 22 (68.18%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vmq2h5wvyhdgmdbsritupimlqff2xv4bjeccsbxbojpvakoxurca._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
29b23b45bbe02bff88d718bbc5fd3130d0da0801507fcf4697de838f12a3301e
Formbook
988ed9d6f58307ca4d5d42471240d5fbc37f31b5bc0e1007869ffc22f12571b2
Formbook
a915e631517c5b9eadd5062e2c12d33521950a2650d56e69f60ed0d783f35345
Formbook
ac10fa3a6b7cfc8385aba614ca8f0da49fe6b0cb6f1b939ec0f0046ecf80ca64
Formbook
ad81131f4f7e0ca1b4b89f17e63d766b1b4c18d1cb873db08de57ed86f9bb140
Formbook
c8827b3385b4cfc8e31913a78e7e108ffeaa2cad099ccc49d4cb2c26edc5a910
Formbook
ca3518a92dca2cb626a8caeb89bff0d9cfd240d7cd06d1cdf9973a746b4f699d
Formbook
ea2adbcb61a20497bc442d31600336a93659f5b38ee367fa83c0a996b0912e83
Formbook
+ 60 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/231016-j1421scg3x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
c941a534f960bd544c61d9f3c13ac12a678de6698871d254bf0110ccb8efe259
MD5 hash:
5121ce19f29de71067d1083d7073eb7e
SHA1 hash:
1a3701d6e38c21ea741b417fbf8410c4a0fc6437
Link:
https://www.unpac.me/results/76a77732-cd5f-4dfc-88f6-8db575abc771/
SH256 hash:
14bb209b285279dab6ec2ec5b36dca3286fde25f887c5b7c2d250296ea1294ba
MD5 hash:
b0172cb5587e2323940dd50f7b8e160f
SHA1 hash:
630f9a2f75385c31819c26b625720ed0b07f2226
Link:
https://www.unpac.me/results/76a77732-cd5f-4dfc-88f6-8db575abc771/
SH256 hash:
b1270dc9ec3f22c6fd2296239426ac7c48589589580d4a1b3da8188920b22a63
MD5 hash:
5c904da8528cfb1b87b15a6aa7c059cd
SHA1 hash:
f0a192969485d1bc34bf52adf37d9c20176d6b85
Link:
https://www.unpac.me/results/76a77732-cd5f-4dfc-88f6-8db575abc771/
SH256 hash:
de8025b530a89ce43bfd98b86ecbda05c159e5d73cd7cdf4258e4e16ce7074c8
MD5 hash:
16fc7c81ba5477662f8fbfbda2c1d927
SHA1 hash:
e43612a55ce3528de375b634493dc6c3b1e829d7
Link:
https://www.unpac.me/results/76a77732-cd5f-4dfc-88f6-8db575abc771/
SH256 hash:
ffabc13f7fad5bea21ab9b04b5c04700394db8ec812f01af098dfbd213b0cded
MD5 hash:
bb95d7e54d7271723c25cf89f5bc63fc
SHA1 hash:
c00a879d8c2bf1d1600387eee96b70f53fa53a39
Link:
https://www.unpac.me/results/76a77732-cd5f-4dfc-88f6-8db575abc771/
SH256 hash:
ab21a3f6d5c1c6660c328a2747a18b814babd78149042906e1725f5029d7a444
MD5 hash:
836a64a336ec4dc06ef7368b4c4bfcbf
SHA1 hash:
2b554688a8b7c8fb3aeaf80fe29afdbdd2f0525d
Link:
https://www.unpac.me/results/76a77732-cd5f-4dfc-88f6-8db575abc771/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/ab21a3f6d5c1c6660c328a2747a18b814babd78149042906e1725f5029d7a444

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/454738/

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