MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b937e279fde4541f11647041a467d331dfc78562d9e267a7eab970d62dd017f5. 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: b937e279fde4541f11647041a467d331dfc78562d9e267a7eab970d62dd017f5
SHA3-384 hash: 8a1a9551de3c78cec0c56dc3e974e09665622e2b1bcbf256b8d1e29c061735d666ae79d7d1a48aabe66d8c20da995d64
SHA1 hash: ace93beab0a325291c9918a830bcb06bb60a014e
MD5 hash: 6b2379123b3128fd66a6491a5735f7b8
humanhash: five-ink-alpha-vegan
File name:009c487a.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:665'600 bytes
First seen:2023-11-20 14:16:07 UTC
Last seen:2023-11-20 16:15:28 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:92361h61EWGDYvDHarJnCOrMPZCVnIItt3zJl8R5ot1BplECGvKVW9phs2:97Y7GkLHatnCZPZOn9ttfzaC1Qj
TLSH T139E423B6B44486F3CE9A21F2443679401B713D5A6C52DBFC0CB6728A07F67498722E7B
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 8060949494969686 (2 x Formbook)
Reporter malwarelabnet
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
295
Origin country :
CA CA
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/459324/
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
Сreating synchronization primitives
Launching a process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-vm packed
Link:
https://www.filescan.io/uploads/655b6a68b7d38bd7aca8ab95/reports/c21af7fa-4cac-4ccb-b7d7-e8480225b9b1/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/b937e279fde4541f11647041a467d331dfc78562d9e267a7eab970d62dd017f5
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:
Malicious Packer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6fb7d174-ef5e-4850-8d5c-07550ecdf0b6
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1345211
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Injects a PE file into a foreign processes
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 submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses runas.exe to run programs with evaluated privileges
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b937e279fde4541f11647041a467d331dfc78562d9e267a7eab970d62dd017f5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b937e279fde4541f11647041a467d331dfc78562d9e267a7eab970d62dd017f5/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-11-20 01:11:54 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xe36e6p54rkb6eleoba2iz6tghp4pblc3hrgpj7kxfynmloqc72q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/231120-rlpmsagd83/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Loads dropped DLL
Unpacked files
SH256 hash:
d32830ee2c14d3d16249320512cc93de835a000d42a2c744ce488052ece9a016
MD5 hash:
481c2e8f96d477d2ccc6e6f988c936e9
SHA1 hash:
6c20399797990f60c057a4c8c10d5213699c4009
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/adc74120-f84a-437a-ba7d-9f3ab20012f1/
Parent samples :
b937e279fde4541f11647041a467d331dfc78562d9e267a7eab970d62dd017f5
4e40765dcf57e97677b1e5ed922e0810ba581de04a80b684960f0eb7dac73825
SH256 hash:
81f003237e854636e0034f5735df9d21befe666d80d8bef4b6ad3ebaf5526d4d
MD5 hash:
54733a5c2f94b2e0b289ce2c283350d5
SHA1 hash:
cfb861c6b12cae623c8c17fb135f62d7168ed0a2
Link:
https://www.unpac.me/results/adc74120-f84a-437a-ba7d-9f3ab20012f1/
SH256 hash:
9c11fc00078ade3b19692fd8f929084f1bdb5e0ef561b5af15efb676cd17ef3e
MD5 hash:
5a4419daaa0022736889d095709c0e4c
SHA1 hash:
5ef0cbbbcb4911f6c72f776f7230c707113d543b
Link:
https://www.unpac.me/results/adc74120-f84a-437a-ba7d-9f3ab20012f1/
SH256 hash:
81a9e5e4f2481170ea07fbe19c19308d55453dbe893e283d74f9d34768067068
MD5 hash:
f82eaca89ad8b7c448dca6411ff2a8fa
SHA1 hash:
411af9e95ac5b764865f8f9a032458f9a7cc2501
Link:
https://www.unpac.me/results/adc74120-f84a-437a-ba7d-9f3ab20012f1/
SH256 hash:
c34dfbc328de247d25d670c3b7853f1dddd2ec2607d5dbb0480743b45a15ea64
MD5 hash:
85b87384830444e6ab86a4a692ce96cc
SHA1 hash:
0d7d4614cf31d27e68ebf48e76fb1d308cc08152
Link:
https://www.unpac.me/results/adc74120-f84a-437a-ba7d-9f3ab20012f1/
SH256 hash:
c8d79d277c752850fea6833be6a9e549f93ad396ee7f507b1b1bff4c452e896a
MD5 hash:
2f63e87bee56cf2c473adcdee791b208
SHA1 hash:
e2725d97ae10dad71de1ad82fbc3a6f739405e06
Link:
https://www.unpac.me/results/adc74120-f84a-437a-ba7d-9f3ab20012f1/
SH256 hash:
8e6c8ebbdc6e5035b105eb133fb9785bd655f1c6d5ebffa8931c6c2d9ff232e0
MD5 hash:
62dbe3f979ccace09ce522c0e66409e4
SHA1 hash:
dfae560c660416d5b35f3ed402cd5cc945b76259
Link:
https://www.unpac.me/results/adc74120-f84a-437a-ba7d-9f3ab20012f1/
SH256 hash:
7844efd18ad82f2c3250c51e08afdf296057690abb918d156da228b5daaf7260
MD5 hash:
652b96aca442b67ea73bff0ecd195bab
SHA1 hash:
a724e877bb1446583a866bffeb2a378b53831185
Link:
https://www.unpac.me/results/adc74120-f84a-437a-ba7d-9f3ab20012f1/
SH256 hash:
1748d3f6d1948bc5cf2531c922a6a85e207bc2d530559b7d1043421ffc84ed96
MD5 hash:
f032655b5847c9b7447dfd5740329e5b
SHA1 hash:
853a48ef588d6c31e888bb5a43396ae09540fbfb
Link:
https://www.unpac.me/results/adc74120-f84a-437a-ba7d-9f3ab20012f1/
SH256 hash:
98a630059f00e92ba8b99b46a7438c5e097b5673a64880171503af907aa98bd3
MD5 hash:
705259e60321f4348968fde58b732661
SHA1 hash:
8347dfe2b555e5cdb6efbe4fae06c40164521b03
Link:
https://www.unpac.me/results/adc74120-f84a-437a-ba7d-9f3ab20012f1/
SH256 hash:
eb78afb3ad936e93114ecc19046307024007ea0bcb50a98bd998eb3e1c6147f3
MD5 hash:
acd17943267a331534c722d31e9dbc8e
SHA1 hash:
70e99e3681c65369ca2c427db7911a9107316649
Link:
https://www.unpac.me/results/adc74120-f84a-437a-ba7d-9f3ab20012f1/
SH256 hash:
b937e279fde4541f11647041a467d331dfc78562d9e267a7eab970d62dd017f5
MD5 hash:
6b2379123b3128fd66a6491a5735f7b8
SHA1 hash:
ace93beab0a325291c9918a830bcb06bb60a014e
Link:
https://www.unpac.me/results/adc74120-f84a-437a-ba7d-9f3ab20012f1/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b937e279fde4541f11647041a467d331dfc78562d9e267a7eab970d62dd017f5

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
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/459324/

Comments