MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 67e1831d726f1baa56e0f1a8f37bcb78ec0aa11a2d1117591d207f3aee8c1551. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
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SHA256 hash: 67e1831d726f1baa56e0f1a8f37bcb78ec0aa11a2d1117591d207f3aee8c1551
SHA3-384 hash: 7e7d78269eed7f894b38aff8e40f50f8be6296d6141ad7b91f1af525fa1b9f1dc5a903470a348dbfcac9aa8fc17df35a
SHA1 hash: d2529b9a701e7c2d70c874c4917f704306ae00ef
MD5 hash: 544dd32f4439568c38efabc2c9ab1fb2
humanhash: purple-steak-dakota-hot
File name:MT103-Referance Number 059235.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'199'104 bytes
First seen:2022-09-08 14:04:54 UTC
Last seen:2022-09-09 07:08:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:2QGs8TkRGagTouD0vYGxvntLKO3ak7R5JXZD0YFAq8iDQ08c/ldOl2FGUH:23URJgPQJfW+lR5voGpFTj/lcwFTH
Threatray 14'434 similar samples on MalwareBazaar
TLSH T1A2454A0371964DA1D17652B890CDC5728BB98E44E23FC6467FCD8CEBF182FA845D63A2
TrID 61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.0% (.SCR) Windows screen saver (13101/52/3)
8.8% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon f0cc96b3b392ccf0 (8 x Formbook, 4 x SnakeKeylogger, 4 x AgentTesla)
Reporter TeamDreier
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
284
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
MT103-Referance Number 059235.pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-09-08 14:08:28 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/8bb6a96f-8d0b-4a2a-9322-7f202da6da69

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/308800/
Detection(s):
SecuriteInfo.com.IL.Trojan.MSILZilla.22649.8778.7762.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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 from a recently created file
Creating a process with a hidden window
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/6319f6e0a90642bcbbefd4cd/reports/2efccb39-f0b1-483a-b31e-5b895fb640a2/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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a729f21d-13bb-45cc-82d4-5de26f6eec3e
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1067186
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
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
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 699718 Sample: MT103-Referance Number 0592... Startdate: 08/09/2022 Architecture: WINDOWS Score: 100 42 Malicious sample detected (through community Yara rule) 2->42 44 Multi AV Scanner detection for dropped file 2->44 46 Sigma detected: Scheduled temp file as task from temp location 2->46 48 15 other signatures 2->48 10 MT103-Referance Number 059235.pdf.exe 7 2->10         started        process3 file4 34 C:\Users\user\AppData\RoamingKSuEhGvy.exe, PE32 10->34 dropped 36 C:\Users\...KSuEhGvy.exe:Zone.Identifier, ASCII 10->36 dropped 38 C:\Users\user\AppData\Local\Temp\tmp45F.tmp, XML 10->38 dropped 40 MT103-Referance Nu... 059235.pdf.exe.log, ASCII 10->40 dropped 50 Adds a directory exclusion to Windows Defender 10->50 52 Injects a PE file into a foreign processes 10->52 14 MT103-Referance Number 059235.pdf.exe 10->14         started        17 powershell.exe 21 10->17         started        19 schtasks.exe 1 10->19         started        signatures5 process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 21 explorer.exe 14->21 injected 23 conhost.exe 17->23         started        25 conhost.exe 19->25         started        process8 process9 27 chkdsk.exe 21->27         started        signatures10 54 Modifies the context of a thread in another process (thread injection) 27->54 56 Maps a DLL or memory area into another process 27->56 58 Tries to detect virtualization through RDTSC time measurements 27->58 30 cmd.exe 1 27->30         started        process11 process12 32 conhost.exe 30->32         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/67e1831d726f1baa56e0f1a8f37bcb78ec0aa11a2d1117591d207f3aee8c1551/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2022-09-08 10:22:23 UTC
File Type:
PE (.Net Exe)
Extracted files:
36
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=m7qyghlsn4n2uvxa6gupg66lpdwavii2fuirowi5eb7tv3umcviq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
179131fddae5e6ad00f8e20140b2a916de1b25f0185e4151d450a746c1cf130c
Formbook
2fc2fa039f2ac3a572a94b03ab7510df0751222ae1b82d96d89d301de5af5997
Formbook
3b6ebee77ad8b21b22a9841ba224dd5f23091f9c6d6989c17640f0c7d0a5a759
Formbook
68ecb3a0784bbfd4ac9f3d1c76cfc09cff02b4298839e2e1b293e9ef8833b265
Formbook
959fc8883e6b1d4ab77f9738792435e2dae1969530f36d2672db6cb397778687
Formbook
9b30d60ee8253334584b819faeb61933b028a0767b5cd3c99f2a4d3c2d8f5aae
Formbook
9bfbca223cfe1d4ad139cc89861b6dfb09d24a63c24f3291a4af0508e03ee8b6
Formbook
a476ba449653ab554fa2702115e10bb9ff57c49b4bbae4c897b7d15156df5a2e
Formbook
d1e081645509446dbf1a8587799dc544ed342da42a6bc778a3fe39fc9c065ff7
Formbook
+ 14'424 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:t39h rat spyware stealer trojan
Link:
https://tria.ge/reports/220908-rdt8asbhel/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
c20ae73306e10f2e0cb2515eb81f8001ea483060b32764bd645434be150fcb73
MD5 hash:
bdd746043f1fe1df6bfb0b1e708d2032
SHA1 hash:
87dbbbdfbc85f0dd16e5330e05bd5e77fd9a5672
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/ecb372d2-e551-4b60-8595-0254ae44de4d/
Parent samples :
67e1831d726f1baa56e0f1a8f37bcb78ec0aa11a2d1117591d207f3aee8c1551
434877dacffb08580c061bdf1a16b2549eab40d01e4c8fc268d1831b59828799
640c4c852a87ad554657b71edf66ae8f22f5da19e19df44bdb4f043ff13430e2
SH256 hash:
8b533ffaed24e0351e489b14aaac6960b731db189ce7ed0c0c02d4a546af8e63
MD5 hash:
dbc7be56e6e32349315170599c8b333f
SHA1 hash:
d8e5840e3574b87d435e55a65ac648e040871aee
Link:
https://www.unpac.me/results/ecb372d2-e551-4b60-8595-0254ae44de4d/
SH256 hash:
307e6b0fa7f3061c007f93b41f710a3d47368296086215ce7fc17d387dd8b1a7
MD5 hash:
9fb4d505b35b8f344613e4a6260b4e1b
SHA1 hash:
cf4768f62eb707484039696fe0edd7061c56bcc0
Link:
https://www.unpac.me/results/ecb372d2-e551-4b60-8595-0254ae44de4d/
SH256 hash:
795cb06ed395285af8e41a6fe1a67e57391aba41733edff70c8295c7ca6b53a2
MD5 hash:
d2aede7c7529e5f2f5f296b66294afb1
SHA1 hash:
43a7a54afd803f51f2fa56dfbc7a8fc5eba30d24
Link:
https://www.unpac.me/results/ecb372d2-e551-4b60-8595-0254ae44de4d/
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
Link:
https://www.unpac.me/results/ecb372d2-e551-4b60-8595-0254ae44de4d/
SH256 hash:
67e1831d726f1baa56e0f1a8f37bcb78ec0aa11a2d1117591d207f3aee8c1551
MD5 hash:
544dd32f4439568c38efabc2c9ab1fb2
SHA1 hash:
d2529b9a701e7c2d70c874c4917f704306ae00ef
Link:
https://www.unpac.me/results/ecb372d2-e551-4b60-8595-0254ae44de4d/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/67e1831d726f/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/67e1831d726f1baa56e0f1a8f37bcb78ec0aa11a2d1117591d207f3aee8c1551

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
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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.

Malspam

Formbook

Executable exe 67e1831d726f1baa56e0f1a8f37bcb78ec0aa11a2d1117591d207f3aee8c1551

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/308800/

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