MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d6b9ef1899c1b113371f34db9d306763e20d9dc759fb9975982a53e6a11b1f5b. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
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SHA256 hash: d6b9ef1899c1b113371f34db9d306763e20d9dc759fb9975982a53e6a11b1f5b
SHA3-384 hash: d0ebe458432451d60efb2472a61dc148096abd28d743b2ed4cb69e6c0d95ae8c2f61487750cff41a982177f9992fdb14
SHA1 hash: 8c4dfb652aced72e0fa9630f8b0146ef9f80dc9b
MD5 hash: 5615be335807b5eb2d4c9f59f5f914dd
humanhash: illinois-jupiter-xray-wolfram
File name:5615be335807b5eb2d4c9f59f5f914dd.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:828'928 bytes
First seen:2021-08-10 13:45:44 UTC
Last seen:2021-08-10 15:47:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:PEQoWX2y6qHcwTeGKJEq/y6INX6LRgU7e9gl8YWvroHcHuPJnBOUu7+OrFjL8DP:KweGq/wKgDefLbt2+OrNcP
Threatray 7'032 similar samples on MalwareBazaar
TLSH T19405CF1B77849AB7E1164F76882E21A403E1DD376136F72F24D876EA1C71321829F62F
dhash icon 78f0f0d4dcc8c8dc (3 x Formbook, 3 x AgentTesla, 3 x AsyncRAT)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
298
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5615be335807b5eb2d4c9f59f5f914dd.exe
Verdict:
Malicious activity
Analysis date:
2021-08-10 13:47:07 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/0a2f41bd-d60d-4d09-aa81-771b6069efa1

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/177955/
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Connection attempt
Sending a custom TCP request
Creating a window
Unauthorized injection to a recently created process
Creating a file
Sending a UDP request
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/6a1f5b2b-ce49-419a-9d33-d6b8baf9053a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/830389
Signature
.NET source code contains very large array initializations
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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)
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
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 462818 Sample: c740nFA3dW.exe Startdate: 10/08/2021 Architecture: WINDOWS Score: 100 32 www.sortporn.com 2->32 48 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->48 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 7 other signatures 2->54 11 c740nFA3dW.exe 15 3 2->11         started        signatures3 process4 dnsIp5 38 www.google.com 142.250.185.196, 443, 49737 GOOGLEUS United States 11->38 30 C:\Users\user\AppData\...\c740nFA3dW.exe.log, ASCII 11->30 dropped 64 Tries to detect virtualization through RDTSC time measurements 11->64 66 Hides that the sample has been downloaded from the Internet (zone.identifier) 11->66 68 Injects a PE file into a foreign processes 11->68 16 c740nFA3dW.exe 11->16         started        file6 signatures7 process8 signatures9 40 Modifies the context of a thread in another process (thread injection) 16->40 42 Maps a DLL or memory area into another process 16->42 44 Sample uses process hollowing technique 16->44 46 Queues an APC in another process (thread injection) 16->46 19 explorer.exe 16->19 injected process10 dnsIp11 34 www.sunflowerhybrid.com 19->34 36 sunflowerhybrid.com 34.102.136.180, 49767, 80 GOOGLEUS United States 19->36 56 System process connects to network (likely due to code injection or exploit) 19->56 23 wlanext.exe 19->23         started        signatures12 process13 signatures14 58 Modifies the context of a thread in another process (thread injection) 23->58 60 Maps a DLL or memory area into another process 23->60 62 Tries to detect virtualization through RDTSC time measurements 23->62 26 cmd.exe 1 23->26         started        process15 process16 28 conhost.exe 26->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d6b9ef1899c1b113371f34db9d306763e20d9dc759fb9975982a53e6a11b1f5b/
Threat name:
Win32.Trojan.Tiggre
Create hunting rule
Status:
Malicious
First seen:
2021-08-09 15:55:30 UTC
AV detection:
26 of 47 (55.32%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
3612932b02e0e97ec1ddac955833b9e572ca1c2d93fdc12c47e4ac6021459bc9
Formbook
7209a5aa4814e2f82aace6de499f4da7911c19bf06f5e12fd302806ecc2a67bd
Formbook
8d45c54297edec973add090c8e620ecb9cda7d7ae2c24c00d77a4361f8026eef
Formbook
8f493a908950607b487e105caa9b4e6f835d36063bcb61d19f450fb78a6db2af
Formbook
c2a7767b9323fd3630a56a3fb09a7884bd7dfb0f7146d5caafff472205e1ebdc
Formbook
c7d7a05d604125b7c0ddfd95a1a7c7279ac93a002cc993bbad938b709469cc23
Formbook
ee8c208f53919c701500c2383d7f2fc28ace3493a4f4c354bfedae9cffe6950f
Formbook
f2dbb6d22033306507ed1ed49781edaa558374b79ac871276cdb33b343c8f7bc
Formbook
fb1efc79e627fcc4485b3bbde9d948f673172715a7fb165f373f79ba31671fb8
Formbook
fd51e52869bd1108cdb034a1afe26267a273eba7b06eba90b866cdb5eab44863
Formbook
+ 7'022 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:glgd rat spyware stealer trojan
Link:
https://tria.ge/reports/210810-a6x1hcm94s/
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.happylittlexplorers.com/glgd/
Unpacked files
SH256 hash:
d6b9ef1899c1b113371f34db9d306763e20d9dc759fb9975982a53e6a11b1f5b
MD5 hash:
5615be335807b5eb2d4c9f59f5f914dd
SHA1 hash:
8c4dfb652aced72e0fa9630f8b0146ef9f80dc9b
Link:
https://www.unpac.me/results/857fbbe8-0e17-4f38-b5eb-c3824d45a69e/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/d6b9ef1899c1b113371f34db9d306763e20d9dc759fb9975982a53e6a11b1f5b

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 d6b9ef1899c1b113371f34db9d306763e20d9dc759fb9975982a53e6a11b1f5b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1522097/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/177955/

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