MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c65c02745d240718672933e9ad25b6a65d1d61ce7c5d317d6447732490434357. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c65c02745d240718672933e9ad25b6a65d1d61ce7c5d317d6447732490434357
SHA3-384 hash: 43c12c41a3a075174dfe72ff3bb6c854012ece30105a191266690d2fb6bec8f2a0c3868eaffa9606bc213fa875cac5e6
SHA1 hash: 347c522bc857ee32d56f8e60bffc2e1787ad260f
MD5 hash: a6a51a0515f13666e5846e191d616da7
humanhash: mike-aspen-mango-princess
File name:a6a51a0515f13666e5846e191d616da7.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:635'904 bytes
First seen:2023-04-25 06:26:49 UTC
Last seen:2023-05-13 22:46:21 UTC
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:bEo6Pv5s+J2TNLhEPGoP8ApJVBTgBNUzpc2GGgGyD9JH414H:8e+JmN1to8qVBT0NU+2GbxV414
Threatray 2'775 similar samples on MalwareBazaar
TLSH T17AD4D0CDD34D0275DF9AE5B14FD4BB972896D2D22A207CB83A3C45E4E28E72DBB40191
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 abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
236
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a6a51a0515f13666e5846e191d616da7.exe
Verdict:
Suspicious activity
Analysis date:
2023-04-25 06:31:05 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/a22ee8ca-7f1b-4fde-865a-7aba77ea7c1e

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/384721/
Detection(s):
Sanesecurity.Malware.28872.BadIN4.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/644772c3c4c1dca4284a7600/reports/ac0fe917-f3f4-4358-aa9b-c1f3aeb96049/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/c65c02745d240718672933e9ad25b6a65d1d61ce7c5d317d6447732490434357
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/e5e5d71e-abd4-4331-93d3-b7579acd37aa
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1220490
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 853436 Sample: OcPTNxSv5A.exe Startdate: 25/04/2023 Architecture: WINDOWS Score: 100 34 Found malware configuration 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 Antivirus detection for URL or domain 2->38 40 6 other signatures 2->40 10 OcPTNxSv5A.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\OcPTNxSv5A.exe.log, ASCII 10->28 dropped 50 Tries to detect virtualization through RDTSC time measurements 10->50 14 OcPTNxSv5A.exe 10->14         started        signatures5 process6 signatures7 52 Modifies the context of a thread in another process (thread injection) 14->52 54 Maps a DLL or memory area into another process 14->54 56 Sample uses process hollowing technique 14->56 58 Queues an APC in another process (thread injection) 14->58 17 explorer.exe 2 1 14->17 injected process8 dnsIp9 30 www.africanswers.online 169.1.24.244, 49697, 80 AfrihostZA South Africa 17->30 32 www.iccu3v.link 17->32 42 System process connects to network (likely due to code injection or exploit) 17->42 21 WWAHost.exe 17->21         started        signatures10 process11 signatures12 44 Modifies the context of a thread in another process (thread injection) 21->44 46 Maps a DLL or memory area into another process 21->46 48 Tries to detect virtualization through RDTSC time measurements 21->48 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c65c02745d240718672933e9ad25b6a65d1d61ce7c5d317d6447732490434357/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-04-24 21:56:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
17 of 22 (77.27%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yzoae5c5eqdrqzzjgpu22jnwuzor2yooprotc7lei5zsjecdinlq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
067bea125f176d75cabed99b0bc6bd3a3957baf3a361d6d3848911446e48d1b1
Formbook
152d5ef19fdfabb482918d51148804bd5227e44e3eb5007dccc347b0ee8585d2
Formbook
43440434172d5730884fa5f0ae4f7ae73c4815e74618d18bc405d18dd325fed4
Formbook
44665e986b18ac11dfc0d8226d232b436310ae04126362e26d9b59cb85b2827d
Formbook
4cdfd3ac195a3194d4a4ad72a3d3aeab0009f8b8bcdd73f7664ebeafd0023bae
Formbook
6afbb9ebc94ae5fbc1a98207af3ce84dec75c243605ebbd6b15b721165e4130a
Formbook
757371fd80dda17d1844c472bead62365e29e5f902e32afad9bc0120346220d5
Formbook
85259a321d6b1d54bae58397546222f0cf4584467240f0cbcdb7445577b66510
Formbook
85b572a6060bf6d434ab978aa1447096c11f84bcd329d71364de8daf261a4660
Formbook
cbdac32d6f43a1f03a26cc2fcc6ea13586f0d7f85764c1626cc71ce30bc0434b
Formbook
+ 2'765 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:gtt8 rat spyware stealer trojan
Link:
https://tria.ge/reports/230425-g7sapagh44/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
e811c7f5003f7ad8afff2dc585e2f70789486c016fb562ed7042398ed768de29
MD5 hash:
2f8e388ddef1cb2290916f78999be660
SHA1 hash:
3a6a5b1f7dac5e2640524ed1a1b98f8668cd2ef1
Detections:
FormBook
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/0261a403-589e-4e27-87cb-627d7d37ec8d/
Parent samples :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 hash:
21f0154b51a09767f94922b81f5fcd15cf4a6390ab7314e40d0e17b2dcdfe6ba
MD5 hash:
c926563698de3a89ad20474c85122f73
SHA1 hash:
ed1a3b2527ace111e6f39880c7ee3965f301330d
Link:
https://www.unpac.me/results/0261a403-589e-4e27-87cb-627d7d37ec8d/
SH256 hash:
37828f796a1faa5a22235b269281ec705c5ba6144f1b9a710af5b52f4bc34080
MD5 hash:
482f9fb0b3d57bd4d9d7184b13de87ae
SHA1 hash:
de7d1a10078c016d658bc99a8ecd808a272f6488
Link:
https://www.unpac.me/results/0261a403-589e-4e27-87cb-627d7d37ec8d/
SH256 hash:
64358e87f4d9f720c551b0540ff9cc5eb86c1f3795ca09f759210a245794892f
MD5 hash:
5e0ed78048f8aae906748bc30bc0124b
SHA1 hash:
c55af604a5848cb7b754be9714c261cf2caac4a3
Link:
https://www.unpac.me/results/0261a403-589e-4e27-87cb-627d7d37ec8d/
SH256 hash:
e89e0605b2c4671df9d27ad9e3a68c32232d0dedb3e55935b3c175102c3f69cf
MD5 hash:
50eed4d52c055066eaaa694453637786
SHA1 hash:
b88630a787a3903a577fee498645024f948b347d
Link:
https://www.unpac.me/results/0261a403-589e-4e27-87cb-627d7d37ec8d/
SH256 hash:
c65c02745d240718672933e9ad25b6a65d1d61ce7c5d317d6447732490434357
MD5 hash:
a6a51a0515f13666e5846e191d616da7
SHA1 hash:
347c522bc857ee32d56f8e60bffc2e1787ad260f
Link:
https://www.unpac.me/results/0261a403-589e-4e27-87cb-627d7d37ec8d/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c65c02745d24/report/overview.html
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/c65c02745d240718672933e9ad25b6a65d1d61ce7c5d317d6447732490434357

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
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 c65c02745d240718672933e9ad25b6a65d1d61ce7c5d317d6447732490434357

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2605461/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/384721/

Comments