MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f641f1a87ee2a760b79417b410c52137c114e2618529bb90a0f281967975476e. 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 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f641f1a87ee2a760b79417b410c52137c114e2618529bb90a0f281967975476e
SHA3-384 hash: 0f559606c6b72b02fe9f03028cb349210d169d1a7b5470990b7437fb7111a4bdd0c242d968a5ab077a6202641b24722a
SHA1 hash: 7b628d08dde66fe82002c908a1cdca11db5d54ed
MD5 hash: cb62322bf94c2372c0c4c0383f3c2a23
humanhash: quebec-fifteen-speaker-hydrogen
File name:cb62322bf94c2372c0c4c0383f3c2a23
Download: download sample
Signature Formbook
Create hunting rule
File size:619'520 bytes
First seen:2023-04-20 02:25:40 UTC
Last seen:2023-05-13 22:54:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:FYmXlA7G3NFi0b7BMAsSMMT6sOhOIbw9SopRGdovnyo6VNglbXT:F5aS9Fi0b7BPl569I4p4G6vn32SbXT
Threatray 2'714 similar samples on MalwareBazaar
TLSH T17CD4F1ED63A5DAE7C1680B7D402676893F3490E37236C638DFDB449EEB87B044995283
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)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
253
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
cb62322bf94c2372c0c4c0383f3c2a23
Verdict:
No threats detected
Analysis date:
2023-04-20 02:26:12 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/1cea05bd-1cfd-40fc-b7d2-70c01dfd70a1

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/383586/
Detection(s):
Sanesecurity.Malware.28872.BadIN4.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6440a2bc26946732736ff58b/reports/544e4e38-747c-445b-8387-350f80a05533/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f641f1a87ee2a760b79417b410c52137c114e2618529bb90a0f281967975476e
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/240a28d2-1842-4b28-a905-8eec77d93dc4
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1217589
Signature
.NET source code contains potential unpacker
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: 850529 Sample: 8BGsB4JQxP.exe Startdate: 20/04/2023 Architecture: WINDOWS Score: 100 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 Multi AV Scanner detection for submitted file 2->42 44 5 other signatures 2->44 10 8BGsB4JQxP.exe 3 2->10         started        process3 file4 30 C:\Users\user\AppData\...\8BGsB4JQxP.exe.log, ASCII 10->30 dropped 52 Tries to detect virtualization through RDTSC time measurements 10->52 14 8BGsB4JQxP.exe 10->14         started        17 8BGsB4JQxP.exe 10->17         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 14->54 56 Maps a DLL or memory area into another process 14->56 58 Sample uses process hollowing technique 14->58 60 Queues an APC in another process (thread injection) 14->60 19 explorer.exe 1 1 14->19 injected process8 dnsIp9 32 thebestforyouofficial.site 108.179.193.94, 49695, 80 UNIFIEDLAYER-AS-1US United States 19->32 34 www.tnndjf5kyxz.com 19->34 36 www.thebestforyouofficial.site 19->36 46 System process connects to network (likely due to code injection or exploit) 19->46 23 msiexec.exe 19->23         started        signatures10 process11 signatures12 48 Modifies the context of a thread in another process (thread injection) 23->48 50 Maps a DLL or memory area into another process 23->50 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f641f1a87ee2a760b79417b410c52137c114e2618529bb90a0f281967975476e/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-04-20 02:26:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6za7dkd64ktwbn4uc62bbrjbg7arjytbquu3xefa6kazm6lvi5xa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0c5bd52278038e9194792544aa9ba56fa2fc62cdd74b5f5e47d8ab6ee7db5d0e
Formbook
2069c3254c5a28daea136f39db600c179ba421e70f71cdd5765575012eb42d42
Formbook
3b86e5743a7a35e6c3e1dc7cb1a844299e7b1f9eeea5bb7e51ca0de52b808803
Formbook
43440434172d5730884fa5f0ae4f7ae73c4815e74618d18bc405d18dd325fed4
Formbook
597979053a51f37ffa0cbeb1847f707b2dd3b3cdbcc5c0a5e66a1f15b5419b8e
Formbook
5cfdb9f856907336025bbd526f7383ae8edbce669348b8e330251dfe21072c8f
Formbook
a5976236ba0b3e31a6dd09af3abe7d0121a4053bb22669869a874d1ba97bd495
Formbook
a70b171c28645f51d9405f8429ae74f28d27ddb48786545bc21f35810f9501e4
Formbook
aee5d1b7326545ff692b98743e04d035e01415300fea8a5bf445d3490d6776cc
Formbook
+ 2'704 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:tf6p rat spyware stealer trojan
Link:
https://tria.ge/reports/230420-cwvjfsha5t/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
d92b34a7904f5d2c8c8b89d47b9e47fa3c82bf568c23130955129cd1e42d9981
MD5 hash:
37e4aa5e53ed3db3fb96b91861d890d1
SHA1 hash:
eb87e7ecff730848bd6397d7dcac6669795e69b2
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/24dcd9cd-9d8c-4fb7-b649-fcc750b6808d/
Parent samples :
f641f1a87ee2a760b79417b410c52137c114e2618529bb90a0f281967975476e
e7c2b8fd0f30db376c2c5d18f6bdac1ee47c07c8201f70fda8c52d135d8a1b93
a85d2aa65e5b5d69769ff7dd1a63e90de9bd7f96a76fa96c52137587b63d1016
030c152d386b5849508a740eecad662de4e716ad593eb95863c93bb9be046a62
908518191aecf6570fc10b1d299d64b2ac02f250fe17198a2407a9e12ddfcd30
9b72403d8d0663158210961631adbc2b5574b89c249804edef87de56ab36c9b9
SH256 hash:
647547864365ac4dc84116762b7b6f63beccfc9b1065e86a57cf3f87d7fba1ba
MD5 hash:
e03dfa5c8e2ef4100eb1ca0c1fad96d6
SHA1 hash:
f78e308fbf9306128145bd1a596276da20af49dc
Link:
https://www.unpac.me/results/24dcd9cd-9d8c-4fb7-b649-fcc750b6808d/
SH256 hash:
ea444d44aa262bd576c70a95224a146646d8cc55e78d74cf1a82074ebb847ec7
MD5 hash:
52a77420e2edf859d7c156728936a566
SHA1 hash:
bfc92c452dde2fdb753482ef44c111891367e8c5
Link:
https://www.unpac.me/results/24dcd9cd-9d8c-4fb7-b649-fcc750b6808d/
SH256 hash:
40c050c20d957d26b932faf690f9c2933a194aa6607220103ec798f46ac03403
MD5 hash:
c768bac25fc6f0551a11310e7caba8d5
SHA1 hash:
95f9195e959fb48277c95d1dd1c97a4edff7cb3a
Link:
https://www.unpac.me/results/24dcd9cd-9d8c-4fb7-b649-fcc750b6808d/
SH256 hash:
5e5c8fe4e53980a98b48fe6b19155edf0f0d285ed899c61dbf4f880583ddf1d2
MD5 hash:
b3bbc5461d12f07ea893bf415dfe7c89
SHA1 hash:
40c3156c471d2afe3fd88c7d20cf93e5782e1bd6
Link:
https://www.unpac.me/results/24dcd9cd-9d8c-4fb7-b649-fcc750b6808d/
SH256 hash:
f641f1a87ee2a760b79417b410c52137c114e2618529bb90a0f281967975476e
MD5 hash:
cb62322bf94c2372c0c4c0383f3c2a23
SHA1 hash:
7b628d08dde66fe82002c908a1cdca11db5d54ed
Link:
https://www.unpac.me/results/24dcd9cd-9d8c-4fb7-b649-fcc750b6808d/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f641f1a87ee2/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.61
Link:
https://yomi.yoroi.company/submissions/f641f1a87ee2a760b79417b410c52137c114e2618529bb90a0f281967975476e

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 f641f1a87ee2a760b79417b410c52137c114e2618529bb90a0f281967975476e

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2614335/
Cape
Cape
https://www.capesandbox.com/analysis/383586/

Comments


Avatar
zbet commented on 2023-04-20 02:25:47 UTC

url : hxxp://208.67.105.179/offbinzx.exe