MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3becd96b73bd64deced370cd1249192900f57ce956d99beb8cfdeb073d811863. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
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SHA256 hash: 3becd96b73bd64deced370cd1249192900f57ce956d99beb8cfdeb073d811863
SHA3-384 hash: db7e6c9bad6341fbf185461f7abb2b101871f2d46d8fc1b70f32baa3873e867d94aee3e204782b23fa129372d267a97a
SHA1 hash: 764c0f27af292a764e7a5f2fea18e39c075c3488
MD5 hash: 05b70d50e84d2f0e3d2f345a5a5652f7
humanhash: bakerloo-snake-november-harry
File name:DEC-TT-PM-#TRTT5344748999MGDMCRTT.PDF.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:734'208 bytes
First seen:2023-07-22 12:49:56 UTC
Last seen:2023-07-24 07:35:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:Ex6kjeGbjfnT1+CzOAELsc/tLePpIIHqZqZguU9xjgMyX7Mm:giGnfnxfCbFL2p8xjgzLM
Threatray 3'286 similar samples on MalwareBazaar
TLSH T17EF46B3C08BD223B81B5EFA58FD48427F1D0A96FB211AD35A5E75B554702A12F8C723E
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 cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
370
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DEC-TT-PM-#TRTT5344748999MGDMCRTT.PDF.exe
Verdict:
Malicious activity
Analysis date:
2023-07-22 12:50:56 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/5c54bb59-5fea-4529-a5b0-eaa44e7f8d05

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/428608/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.28304.13570.UNOFFICIAL
Create hunting rule

Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/3becd96b73bd64deced370cd1249192900f57ce956d99beb8cfdeb073d811863
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/7b90b1c7-d9b1-4ca8-baa5-3c08cd855b2a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1277795
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Scheduled temp file as task from temp location
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 FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1277795 Sample: DEC-TT-PM-#TRTT5344748999MG... Startdate: 22/07/2023 Architecture: WINDOWS Score: 100 39 Malicious sample detected (through community Yara rule) 2->39 41 Sigma detected: Scheduled temp file as task from temp location 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 6 other signatures 2->45 7 DEC-TT-PM-#TRTT5344748999MGDMCRTT.PDF.exe 7 2->7         started        11 JkruakK.exe 5 2->11         started        process3 file4 31 C:\Users\user\AppData\Roaming\JkruakK.exe, PE32 7->31 dropped 33 C:\Users\user\...\JkruakK.exe:Zone.Identifier, ASCII 7->33 dropped 35 C:\Users\user\AppData\Local\...\tmpFD4E.tmp, XML 7->35 dropped 37 DEC-TT-PM-#TRTT534...GDMCRTT.PDF.exe.log, ASCII 7->37 dropped 47 Uses schtasks.exe or at.exe to add and modify task schedules 7->47 49 Adds a directory exclusion to Windows Defender 7->49 13 powershell.exe 20 7->13         started        15 schtasks.exe 1 7->15         started        17 DEC-TT-PM-#TRTT5344748999MGDMCRTT.PDF.exe 7->17         started        19 DEC-TT-PM-#TRTT5344748999MGDMCRTT.PDF.exe 7->19         started        51 Multi AV Scanner detection for dropped file 11->51 53 Machine Learning detection for dropped file 11->53 55 Injects a PE file into a foreign processes 11->55 21 schtasks.exe 1 11->21         started        23 JkruakK.exe 11->23         started        signatures5 process6 process7 25 conhost.exe 13->25         started        27 conhost.exe 15->27         started        29 conhost.exe 21->29         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3becd96b73bd64deced370cd1249192900f57ce956d99beb8cfdeb073d811863/
Threat name:
ByteCode-MSIL.Spyware.Taskun
Create hunting rule
Status:
Malicious
First seen:
2023-07-22 12:33:49 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
21 of 25 (84.00%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hpwns23txvsn5twtodgresizfeapk7hjk3mzx24m7xvqopmbdbrq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0434b553716106cbc769d01e7c12768bcd0d445f2bdb25ec4bbb6568f5188d28
Formbook
283701722fd569d223d0118a3e85b3e63fa97af7a66dd452d9da0346cefd40bf
Formbook
8da7f3f5c82fa1468900d1f92ba263d74d62d0ec4c2128d4aaa260a0baca27a3
Formbook
c155fef955e84c3105693dd142f5e385ee89fa251fd071f366dc6caa94a34502
Formbook
d434a9f3609e63a13feafd0bc3bf29abac38d194b72220d9e51054abdaf84826
Formbook
+ 3'276 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230722-p2xbfsbd2z/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Unpacked files
SH256 hash:
5ec72cfb77b5d34be196e6b6f6bb15e7b736e08d4fb8c3a4384610123b52213d
MD5 hash:
60bd4f4d92127cd84bf6a6ba23811a97
SHA1 hash:
44e917e879f786d2c4f3e789720e272472f15a4d
Detections:
XLoader
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/52b1cb77-7bf1-4389-8726-42da25c7d7ab/
Parent samples :
c155fef955e84c3105693dd142f5e385ee89fa251fd071f366dc6caa94a34502
3becd96b73bd64deced370cd1249192900f57ce956d99beb8cfdeb073d811863
SH256 hash:
0e12ac4ce97b5223626bc9a5184711e0ddda5b3f4ac195fcb37d1505d7f09d43
MD5 hash:
fd60cc4bdd96eb6087a16a4cf136fa98
SHA1 hash:
20d1ba879f535f00ca9422b70071766f0e843505
Link:
https://www.unpac.me/results/52b1cb77-7bf1-4389-8726-42da25c7d7ab/
SH256 hash:
53f2ad060cf771aa4f197df5789cee95959480c244a0b392bb450c8ce7311d77
MD5 hash:
37e82d3e2864e27b34f5fbacaea759c3
SHA1 hash:
a87024a466e052bff09a170bb8c6f374f6c84c32
Link:
https://www.unpac.me/results/52b1cb77-7bf1-4389-8726-42da25c7d7ab/
SH256 hash:
91049e8130ac1184d5b7b466564281ee41739af512e1e7aa470354d941c009c5
MD5 hash:
39b0dc8e8cb0d758fd1c76d7b5d1635c
SHA1 hash:
76a252c2b2dede4252932fd676bdff5c7045d21d
Link:
https://www.unpac.me/results/52b1cb77-7bf1-4389-8726-42da25c7d7ab/
SH256 hash:
eb9659fe647ed73c38a6ed5cf811392aa36230b6ff91a8588d1b5ab557757eb0
MD5 hash:
0364f8100802aade2ab6f4027e7e7c2c
SHA1 hash:
17830b30799b545cf25f676a407608ca4be4c17c
Link:
https://www.unpac.me/results/52b1cb77-7bf1-4389-8726-42da25c7d7ab/
SH256 hash:
3becd96b73bd64deced370cd1249192900f57ce956d99beb8cfdeb073d811863
MD5 hash:
05b70d50e84d2f0e3d2f345a5a5652f7
SHA1 hash:
764c0f27af292a764e7a5f2fea18e39c075c3488
Link:
https://www.unpac.me/results/52b1cb77-7bf1-4389-8726-42da25c7d7ab/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3becd96b73bd/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/3becd96b73bd64deced370cd1249192900f57ce956d99beb8cfdeb073d811863

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:Dotnet_Hidden_Executables_Detect
Create hunting rule
Author:Mehmet Ali Kerimoglu (@CYB3RMX)
Description:This rule detects hidden PE file presence.
Reference:https://github.com/CYB3RMX/Qu1cksc0pe
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.

Malspam

Formbook

7z 48d3cb813122f5738d00ebd953fccff30206b81007733ba769fc84ea96f30416

Formbook

Executable exe 3becd96b73bd64deced370cd1249192900f57ce956d99beb8cfdeb073d811863

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 48d3cb813122f5738d00ebd953fccff30206b81007733ba769fc84ea96f30416
Cape
Cape
https://www.capesandbox.com/analysis/428608/
  
Dropped by
MD5 fc93f7ef4717f26c19817a8afa8302c9

Comments