MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6a031ff99c704ce956ff83791f0face2196fef52ee2672d860dce78e917b8f77. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6a031ff99c704ce956ff83791f0face2196fef52ee2672d860dce78e917b8f77
SHA3-384 hash: 5203a8d941dbe8c5c299173e1667f1a30aff1b47117390c610c684e426736f367f5d1043beb8d3fcdb7984a3393bd63e
SHA1 hash: a201784bf28ff4504a9eda4e2caba377be17b855
MD5 hash: 61d1b923bce3ebd7b464eebe0ef10f8a
humanhash: single-august-oven-sink
File name:61d1b923bce3ebd7b464eebe0ef10f8a.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:827'904 bytes
First seen:2021-09-20 17:59:53 UTC
Last seen:Never
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:T5U0BCDYsmtiK5oUZvZz09F3su01HJgTjXiuIcdxJEXUIUGQK:RBCb+FocZz8cu01pvx9XUdZK
Threatray 9'411 similar samples on MalwareBazaar
TLSH T136059ED17D47D89BF0DF2AB3989FC12012656E9D9161C73D26827B2B55F330230ABA4E
File icon (PE):PE icon
dhash icon b282b8a4a6929e9e (23 x Formbook, 20 x AgentTesla, 9 x SnakeKeylogger)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
212
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
61d1b923bce3ebd7b464eebe0ef10f8a.exe
Verdict:
Suspicious activity
Analysis date:
2021-09-20 18:05:23 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/cdec4777-7973-42f2-a3f2-9db2c67c61da

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/189567/
Detection(s):
SecuriteInfo.com.ML.PE-A.29065.312.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4f7a4806-d110-4fa9-a6e7-d4d662436778
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/854341
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found 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 domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
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: 486770 Sample: MFtBYsz3kB.exe Startdate: 20/09/2021 Architecture: WINDOWS Score: 100 29 www.pasticcerialemmi.com 2->29 31 www.casino-virtuali.net 2->31 49 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->49 51 Multi AV Scanner detection for domain / URL 2->51 53 Found malware configuration 2->53 55 9 other signatures 2->55 10 MFtBYsz3kB.exe 3 2->10         started        signatures3 process4 file5 27 C:\Users\user\AppData\...\MFtBYsz3kB.exe.log, ASCII 10->27 dropped 57 Tries to detect virtualization through RDTSC time measurements 10->57 59 Injects a PE file into a foreign processes 10->59 14 MFtBYsz3kB.exe 10->14         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 14->61 63 Maps a DLL or memory area into another process 14->63 65 Sample uses process hollowing technique 14->65 67 Queues an APC in another process (thread injection) 14->67 17 colorcpl.exe 14->17         started        20 explorer.exe 14->20 injected process9 dnsIp10 39 Self deletion via cmd delete 17->39 41 Modifies the context of a thread in another process (thread injection) 17->41 43 Maps a DLL or memory area into another process 17->43 45 Tries to detect virtualization through RDTSC time measurements 17->45 23 cmd.exe 1 17->23         started        33 xn--tarzmbu-ufb.com 89.43.66.91, 49817, 80 NETINTERNETNetinternetBilisimTeknolojileriASTR Turkey 20->33 35 fasilitatortoefl.com 103.52.144.138, 49810, 80 IDNIC-DRUPADI-AS-IDPTDrupadiPrimaID Indonesia 20->35 37 9 other IPs or domains 20->37 47 System process connects to network (likely due to code injection or exploit) 20->47 signatures11 process12 process13 25 conhost.exe 23->25         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6a031ff99c704ce956ff83791f0face2196fef52ee2672d860dce78e917b8f77/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2021-09-20 18:00:22 UTC
AV detection:
10 of 28 (35.71%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
06db28157cbf8afaef9fada2db963f0a1f81a266512c748dc6ea86d371036900
Formbook
13c2ff62d1e29d6e88c828851f842b17acb6293da92bdf5223e87a67bf00ed31
Formbook
16e9e1b6560d4566dc705cf7504391ae585affc16a7cd70fc8c881e25eb230d4
Formbook
3884e83634368ece061a97583d17bfdfe4247af9f8d507f4b594eaabf499e1c9
Formbook
3f383c683795d277510e0fb4c806ae17bfb33dd6ff875b66c159068e58c28818
Formbook
7ed2e1a088d8af23bee0d7b23fe435a181f597991cebfffbcc1ed43f31198f87
Formbook
7edea6fe44458e087954bd189d33214f74cdb0d25dc3ea598554a9b2e3808abc
Formbook
9e5d79a5c4d56511b27b25b7c4ddb73e8c10c15168676b90291b8ba66a6239c4
Formbook
bb913402040958a639d6c22b1df958de0aa304d51c00eb5aaa106077edb85310
Formbook
e94b8626361ef2ef783dbb4c5662c62a2f27f79e7453b0831805a04541e0ac12
Formbook
+ 9'401 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:uytf loader rat
Link:
https://tria.ge/reports/210920-wlcensega6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.fasilitatortoefl.com/uytf/
Unpacked files
SH256 hash:
9c33f04ebf1782711ec0c00a43d9334adf0a10d7ab4bc3d2c49aa8b4e64a3685
MD5 hash:
e124dde00ff92ae52bc44bd15b8597dc
SHA1 hash:
490b3216176f364fa02b4a0ad18868a1f3fef662
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/ea825efb-3715-4c3c-8dcb-5c7c954385ac/
Parent samples :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 hash:
bf75ba76987312ed9c234bc163587e085625c28a01001eb1ee79b2ce0cb328e3
MD5 hash:
884991a8aa767a2e85bbf07bf393a43e
SHA1 hash:
edeecea069aad896cc5e578ed206225fa4056241
Link:
https://www.unpac.me/results/ea825efb-3715-4c3c-8dcb-5c7c954385ac/
SH256 hash:
cac8b347040a359c02ae5e658d3d76230c7dd7eb33505605ed0b9bc49ff268c7
MD5 hash:
71a894ff252c767b80d65ab1e54fda2b
SHA1 hash:
bcc4ff628585ca28b8b0f2c30e63049b910d4d49
Link:
https://www.unpac.me/results/ea825efb-3715-4c3c-8dcb-5c7c954385ac/
SH256 hash:
5bb15f7869eaff37cc3a375e6f1c4254da56b5ebb6ce0744d68905e28003adb7
MD5 hash:
b3bab2fc3b8d75f702cc1aae9ebe44bf
SHA1 hash:
6c19d5a8d123f351e65b44184c9975646fc0599d
Link:
https://www.unpac.me/results/ea825efb-3715-4c3c-8dcb-5c7c954385ac/
SH256 hash:
6a031ff99c704ce956ff83791f0face2196fef52ee2672d860dce78e917b8f77
MD5 hash:
61d1b923bce3ebd7b464eebe0ef10f8a
SHA1 hash:
a201784bf28ff4504a9eda4e2caba377be17b855
Link:
https://www.unpac.me/results/ea825efb-3715-4c3c-8dcb-5c7c954385ac/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.79
Link:
https://yomi.yoroi.company/submissions/6a031ff99c704ce956ff83791f0face2196fef52ee2672d860dce78e917b8f77

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: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 6a031ff99c704ce956ff83791f0face2196fef52ee2672d860dce78e917b8f77

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/189567/
  
URLhaus
https://urlhaus.abuse.ch/url/1630843/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1631109/

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