MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c56786407c509280b5b2ee7ad0267568876b56dc418f873816753b8a034f00c. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8c56786407c509280b5b2ee7ad0267568876b56dc418f873816753b8a034f00c
SHA3-384 hash: 907e93c16c6addb1f97f7f261ee8f639feda845bba61498cb97843ef7246ebf0aa232e92b657b5416422a49644f3aea7
SHA1 hash: 4c51c6c6af170a73e35ebc859f19e00ed7770ea6
MD5 hash: 57b383dde31f9fd7fcf40ee5e8d671e0
humanhash: charlie-april-kilo-ink
File name:virussign.com_57b383dde31f9fd7fcf40ee5e8d671e0
Download: download sample
Signature Formbook
Create hunting rule
File size:796'672 bytes
First seen:2022-07-15 16:37:17 UTC
Last seen:2024-07-24 18:47:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 24576:3QEoFufq+Jt/wvfIcIwPygTL55/tX4p+GQOs:3QLFykvfIcIwPygT1pup+G
Threatray 13'699 similar samples on MalwareBazaar
TLSH T1670501403BE96B97DEBBD7F65A30A14103B279162622F70D2CD365CB2573F0086A1E67
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter KdssSupport
Tags:exe FormBook


Avatar
KdssSupport
Uploaded with API

Intelligence

File Origin
# of uploads :
2
# of downloads :
115
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
virussign.com_57b383dde31f9fd7fcf40ee5e8d671e0
Verdict:
Malicious activity
Analysis date:
2022-07-16 03:20:13 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ed98538c-91b6-4af9-91b3-c5de1e07e575

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/290073/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.17641.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62d198428dab2096b99f3ed9/reports/3e140933-9e65-4744-87a7-1aafa6b134fc/overview
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
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1034274
Signature
C2 URLs / IPs found in malware configuration
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
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 666769 Sample: Y88cMd8f7P.com_57b383dde31f... Startdate: 17/07/2022 Architecture: WINDOWS Score: 100 30 www.morhun.sbs 2->30 38 Malicious sample detected (through community Yara rule) 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 Yara detected AntiVM3 2->42 44 4 other signatures 2->44 10 Y88cMd8f7P.exe 3 2->10         started        signatures3 process4 file5 28 C:\Users\user\AppData\...\Y88cMd8f7P.exe.log, ASCII 10->28 dropped 46 Tries to detect virtualization through RDTSC time measurements 10->46 48 Injects a PE file into a foreign processes 10->48 14 Y88cMd8f7P.exe 10->14         started        signatures6 process7 signatures8 50 Modifies the context of a thread in another process (thread injection) 14->50 52 Maps a DLL or memory area into another process 14->52 54 Sample uses process hollowing technique 14->54 56 Queues an APC in another process (thread injection) 14->56 17 cscript.exe 14->17         started        20 explorer.exe 14->20 injected 22 autochk.exe 14->22         started        process9 signatures10 32 Modifies the context of a thread in another process (thread injection) 17->32 34 Maps a DLL or memory area into another process 17->34 36 Tries to detect virtualization through RDTSC time measurements 17->36 24 cmd.exe 1 17->24         started        process11 process12 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8c56786407c509280b5b2ee7ad0267568876b56dc418f873816753b8a034f00c/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-07-13 03:33:01 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rrlhqzahyuesqc23f3t22athk2ehnnlnyqmpq44bm5j3ribu6aga._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
077d4640e51e8a6cb8b05aafa60f5cb061619f556bed260481f2d537a57515d8
Formbook
1b79f5c913e11c7c7fdd9cf12706d6049894dcc48c5b87368ff4ff05b03cc7e8
Formbook
27ef35c90367b8bd42a5d68e93cd132c1ce8a7b0ba6a73e0447b016da8c4ddd6
Formbook
46ffe35598b3c2489b6b2830ac9afe19385161fd055b59863460ea073e562ad3
Formbook
4d69d40bb281b4f3e23d1a12e060e7705b2b4ac67ede8ea6ec593d1a5991d960
Formbook
684782ca20359680b64b720ee81fbb5653fa3a13661c06c61c4a80af50fcdcb9
Formbook
823eee47b2bea6b3c81dd6d97359288b6e8b65fbb2eebf8f2fab7de608f05c2b
Formbook
9f97a0e977873d696ca0b91c485ce42cade63009100472b85c8e6d867ab3b0f3
Formbook
a8542b82f30bd1f1ac0fad9da2d06c9c0ee63d4a5b2e02534b7cbf97be882c0a
Formbook
bcdb1cf55758eba1f5a2af93e137ce0bf004969e59419c576b2781f80659da55
Formbook
+ 13'689 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader persistence rat suricata
Link:
https://tria.ge/reports/220715-t5eb9sddfk/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Xloader payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
ea801ddd1ea57f52ae69533038861744365d8d9c05c3a9c1190dba32d07dc6b6
MD5 hash:
4d0e9bfe94004ceb16e9b63c7c03067d
SHA1 hash:
05e3fb4119f85cc6b6543d8624191a7000d856cd
Link:
https://www.unpac.me/results/f39c98b0-0804-4ed1-a3ad-a37c4935f003/
SH256 hash:
883b63ef84c6b1cc09687962beca56e4f4b7960df7c5459e29998befaa3ccf15
MD5 hash:
ecb3f27eb8279c51608c8ea8f8050655
SHA1 hash:
82385d75444ab5fccacf37e2746c7dce73faa7f3
Link:
https://www.unpac.me/results/f39c98b0-0804-4ed1-a3ad-a37c4935f003/
SH256 hash:
36a425f990ba29c816e9eaf6185cd5166769579f99dbab066b584c7ed3ad3ed1
MD5 hash:
c91c763c072f9a3d17858975de09e165
SHA1 hash:
c27358eac1951bf7d5060ecb0681600d1a2f2da7
Link:
https://www.unpac.me/results/f39c98b0-0804-4ed1-a3ad-a37c4935f003/
SH256 hash:
77a61d09350e15e66c6aca88efb5ecee0f1fad5bbdc869a54421f97addae5436
MD5 hash:
544749b7ef5156d4b13e8cadb2ac1645
SHA1 hash:
4a618b164494706ec714e928703a350ad5daadf2
Link:
https://www.unpac.me/results/f39c98b0-0804-4ed1-a3ad-a37c4935f003/
SH256 hash:
0c3a61544b8d8ad30c311fe92f844a77ea2c2ce4e24bb215f6eac6ce37e0afad
MD5 hash:
2730d5bde341467f5325a5f45a867293
SHA1 hash:
4fa6d0e29554a2f4e7675ae332dd6bfa1f9837c1
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/f39c98b0-0804-4ed1-a3ad-a37c4935f003/
Parent samples :
684782ca20359680b64b720ee81fbb5653fa3a13661c06c61c4a80af50fcdcb9
8c56786407c509280b5b2ee7ad0267568876b56dc418f873816753b8a034f00c
a9d1fa40e50da5f6d22eee0a711265cc6340e0e8ff969c93d6113725407fbd6d
SH256 hash:
8c56786407c509280b5b2ee7ad0267568876b56dc418f873816753b8a034f00c
MD5 hash:
57b383dde31f9fd7fcf40ee5e8d671e0
SHA1 hash:
4c51c6c6af170a73e35ebc859f19e00ed7770ea6
Link:
https://www.unpac.me/results/f39c98b0-0804-4ed1-a3ad-a37c4935f003/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8c56786407c5/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8c56786407c509280b5b2ee7ad0267568876b56dc418f873816753b8a034f00c

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: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.

Web download

Formbook

Executable exe 8c56786407c509280b5b2ee7ad0267568876b56dc418f873816753b8a034f00c

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/290073/

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