MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b1b8f6dcd1c8d12e5a79a8d16dd62d0900d552ba435178b691f4497d338cc704. 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: 9


Intelligence 9 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b1b8f6dcd1c8d12e5a79a8d16dd62d0900d552ba435178b691f4497d338cc704
SHA3-384 hash: e72fd2757b47d3350e0da8a1e4c8167a5a580fcca3e00cff67185fdd2706bd6011b4a4c994fc854ba3139f4d625c797f
SHA1 hash: f8e5643ca5976befed25a39f15d9a6330103143a
MD5 hash: a736f7de54daf46a933b156ab3757a49
humanhash: sierra-sierra-triple-crazy
File name:Quotation.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:593'408 bytes
First seen:2020-10-26 13:40:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 12288:X4P9ADHuumsoZRl07g8gIsAkFJlAqL70fzwFh0L5q8pzLc79CE:BDHZoZj07VgUoldL70fu0VR9LqL
Threatray 2'754 similar samples on MalwareBazaar
TLSH 61C4E021728C9746E13987B81421D030A7F1BC86DB32D6297DD57ADF35B2F858B3AB12
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: mg2.eee.tw
Sending IP: 103.17.10.228
From: Julia <julia@tachouship.com>
Subject: Re:Argentina || Quote and Price List Request
Attachment: Quotation.img (contains "Quotation.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
69
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/79078/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Sending a UDP request
Creating a window
Creating a file in the Windows subdirectories
Forced shutdown of a system process
Unauthorized injection to a system process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/511897
Signature
.NET source code contains potential unpacker
Initial sample is a PE file and has a suspicious name
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
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 AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 305096 Sample: Quotation.exe Startdate: 26/10/2020 Architecture: WINDOWS Score: 100 36 www.seolahmrekakorban04.com 2->36 40 Malicious sample detected (through community Yara rule) 2->40 42 Multi AV Scanner detection for submitted file 2->42 44 Yara detected AntiVM_3 2->44 46 5 other signatures 2->46 11 Quotation.exe 4 2->11         started        signatures3 process4 signatures5 54 Tries to detect virtualization through RDTSC time measurements 11->54 56 Injects a PE file into a foreign processes 11->56 14 Quotation.exe 11->14         started        process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 Queues an APC in another process (thread injection) 14->64 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.xqxsm.com 154.216.10.66, 49736, 80 COMING-ASABCDEGROUPCOMPANYLIMITEDHK Seychelles 17->30 32 www.youcancallmekev.online 17->32 34 www.metaldeploy.com 17->34 38 System process connects to network (likely due to code injection or exploit) 17->38 21 raserver.exe 17->21         started        24 autoconv.exe 17->24         started        signatures10 process11 signatures12 48 Modifies the context of a thread in another process (thread injection) 21->48 50 Maps a DLL or memory area into another process 21->50 52 Tries to detect virtualization through RDTSC time measurements 21->52 26 cmd.exe 1 21->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b1b8f6dcd1c8d12e5a79a8d16dd62d0900d552ba435178b691f4497d338cc704/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-26 02:28:40 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wg4pnxgrzdis4wtzvdiw3vrnbeankuv2inixrnur6rex2m4my4ca._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
2829f8bf819c13d753f3c6b33726df8c46a533f3040b550a86ca0ab34f967e92
Formbook
333a258f45e7a8baaab72b1539859a00bca7309a8d641490329184977090b540
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3f3daa13de0dde36e87f536f9cbcabc3170a6ddc4bd261d8ad3d3cd8515f6790
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805a071c8e38fca4e3602881ff33ac7a2afba65bb61cd7adda873950bf2779cb
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82ec33dd4f26eab172d8a0fc536751d12153a3f7175351da311a7059217c670e
Formbook
b4aabf02da27e27110077d1d1cc28de4494ee4488750828cc2027c56b60a46d7
Formbook
c41015f034cca2ff33ce96e08ddb477a92a3fff678bd8e78a78d96bf69e613f1
Formbook
c62da41bbe27ef2aeaf2bcadd8e701bf7f2c6878445aad9158298b42c9f54b21
Formbook
ef4c04da2b5fe6ce33597d1dbe44a8b84b156cb1bd03b3a3f8d8c9dabede075b
Formbook
+ 2'744 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/201026-1y9732y5k2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.xqxsm.com/mc5/
Please note that we are no longer able to provide a coverage score for Virus Total.

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

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

img a8a0d960b957698d6c63a5e15d6d2ec6e6fc7201e15181882773b4f0e5ad9a4a

Formbook

Executable exe b1b8f6dcd1c8d12e5a79a8d16dd62d0900d552ba435178b691f4497d338cc704

(this sample)

  
Dropped by
MD5 2391990de473e494e3adeb7274a4098a
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/79078/
  
Dropped by
SHA256 a8a0d960b957698d6c63a5e15d6d2ec6e6fc7201e15181882773b4f0e5ad9a4a

Comments