MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9891e59fd137efef706c3d6ba08139d1a6e56ac4c1fe29aad0438848738393af. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9891e59fd137efef706c3d6ba08139d1a6e56ac4c1fe29aad0438848738393af
SHA3-384 hash: dca688510c16b41e61b7c1312f7de3cfebefe30087eb6fc667491b07cd49108d34ac4ae21711168ffc404c2f016d0a50
SHA1 hash: 135c6af76bcebf078cda03925ae019a835212d54
MD5 hash: ffd5da76c70591836fa55709298b9c3f
humanhash: muppet-march-fruit-november
File name:KOC RFQ.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:715'776 bytes
First seen:2021-09-02 17:17:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'467 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:0eZh0RBDbuXZiBcTo2fkYRp+2HOwdmV15:0VLySgo2fzSo0
Threatray 8'950 similar samples on MalwareBazaar
TLSH T1B7E42C3E18FE23279176C7D5CBE58823F6D098AF3233A96467D747264316A4674C322E
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
234
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
KOC RFQ.exe
Verdict:
Malicious activity
Analysis date:
2021-09-02 17:19:19 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/2e5b694b-ce1e-47f4-88d9-d04aa48b15f0

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/184861/
Detection(s):
SecuriteInfo.com.ArtemisFFD5DA76C705.5329.22249.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e9e16a2c-bdd0-4077-bcb3-bceabd881e77
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/844212
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
Self deletion via cmd delete
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 signatures2 2 Behavior Graph ID: 476643 Sample: KOC RFQ.exe Startdate: 02/09/2021 Architecture: WINDOWS Score: 100 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus detection for URL or domain 2->50 52 9 other signatures 2->52 9 KOC RFQ.exe 3 2->9         started        process3 file4 28 C:\Users\user\AppData\...\KOC RFQ.exe.log, ASCII 9->28 dropped 54 Injects a PE file into a foreign processes 9->54 13 KOC RFQ.exe 9->13         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 13->56 58 Maps a DLL or memory area into another process 13->58 60 Sample uses process hollowing technique 13->60 62 Queues an APC in another process (thread injection) 13->62 16 cmmon32.exe 13->16         started        19 explorer.exe 13->19 injected 22 autochk.exe 13->22         started        process8 dnsIp9 36 Self deletion via cmd delete 16->36 38 Modifies the context of a thread in another process (thread injection) 16->38 40 Maps a DLL or memory area into another process 16->40 42 Tries to detect virtualization through RDTSC time measurements 16->42 24 cmd.exe 1 16->24         started        30 www.suavit.com 19->30 32 www.electricianlowerhutt.kiwi 35.213.185.140, 49747, 80 GOOGLEUS United States 19->32 34 HDRedirect-LB7-5a03e1c2772e1c9c.elb.us-east-1.amazonaws.com 3.223.115.185, 49750, 80 AMAZON-AESUS United States 19->34 44 System process connects to network (likely due to code injection or exploit) 19->44 signatures10 process11 process12 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/9891e59fd137efef706c3d6ba08139d1a6e56ac4c1fe29aad0438848738393af/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2021-09-02 10:27:50 UTC
AV detection:
19 of 28 (67.86%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=tci6lh6rg7x664dmhvv2bajz2gtok2weyh7ctkwqioeeq44dsoxq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
235ba381590281e939399f0b33cb4a95fcf2d0d60f8fb13a179c4aea788812e4
Formbook
6a48a1bb2cac5fd1bcc700d2aa244bb2e68cc5f675c0adea8a99d25feb0b2be0
Formbook
8830d590a0037fa1aadfd805782ab6a64905d5734b8205cd7aac30e9f116ee49
Formbook
d26d2d077e429b7f9a4e7a4a0026ea5892403fe9a475fa12566e1e58610d628b
Formbook
e0e30c8c2180ba5b019bb78098a25811a1989a1bc6809e4c17130d887c47a24e
Formbook
+ 8'940 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ucze rat spyware stealer trojan
Link:
https://tria.ge/reports/210902-vtrnwsbab8/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.suavit.com/ucze/
Unpacked files
SH256 hash:
5c4839feb76e72b7ede9bb3f57e34a948b36fbbbdead59ca3586771abb2b5e7a
MD5 hash:
8d9d6f2173a821a821f9849ccf8d4f21
SHA1 hash:
777ab5bb88f22368ab0c386b0292fcef4dddff44
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/523800cf-59a3-4378-8b0e-574688cab775/
Parent samples :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 hash:
9a569be1313734a7a5657149f890204e1246833e80ac0e45c15b9ebc972cfa99
MD5 hash:
db1ca79a10eb8debc020653b67a41ed4
SHA1 hash:
c9aff868749946879d85e0c75c11a085d3c244c2
Link:
https://www.unpac.me/results/523800cf-59a3-4378-8b0e-574688cab775/
SH256 hash:
363c40224ed918b27a568c97e276ed0dd5cf19845c402b5f991e7adfb180c11f
MD5 hash:
4285f9fa8a9dcf291ca395226d8527ab
SHA1 hash:
2723757de88dba279c79de3d7ef184cfbae7ea02
Link:
https://www.unpac.me/results/523800cf-59a3-4378-8b0e-574688cab775/
SH256 hash:
9891e59fd137efef706c3d6ba08139d1a6e56ac4c1fe29aad0438848738393af
MD5 hash:
ffd5da76c70591836fa55709298b9c3f
SHA1 hash:
135c6af76bcebf078cda03925ae019a835212d54
Link:
https://www.unpac.me/results/523800cf-59a3-4378-8b0e-574688cab775/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/9891e59fd137efef706c3d6ba08139d1a6e56ac4c1fe29aad0438848738393af

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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.

Malspam

Formbook

Executable exe 9891e59fd137efef706c3d6ba08139d1a6e56ac4c1fe29aad0438848738393af

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/184861/

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