MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d7891c230103e0424c00cb31edfe25873433c901bd999772d9ab9013ba1e1da0. 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
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SHA256 hash: d7891c230103e0424c00cb31edfe25873433c901bd999772d9ab9013ba1e1da0
SHA3-384 hash: 468f125975454841bc687084180abc75d106dee59a289d1f96534d77ff26f2c5b44df6224d2fe9e72756d0585c16bdf2
SHA1 hash: 126e3913a63c5b0cd0455cb51760da8c64d86e4d
MD5 hash: ad01a56e0c48374566e05e62c93d74c1
humanhash: september-april-autumn-uranus
File name:mt1033 pdf.exe
Download: download sample
Signature Formbook
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File size:700'416 bytes
First seen:2022-08-15 16:34:54 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:vJM2TgB3lfQ+XoGNnYG7ELcFlXPEJN4xFYwS8oW4CJRQFmki9bF:3gt++5YGLFZPEJN4PS8opvk
TLSH T1C0E4DFAF2E9C5606CD7907B4ECAC1184ABF17DA23502E6DE5CA370D7C0B239C4798E56
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
301
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
mt1033 pdf.zip (L000132)
Verdict:
Malicious activity
Analysis date:
2022-08-15 08:27:54 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/04f465cf-2ee2-453a-ac82-d4d3d16946fe

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/298792/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1449.18147.29898.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62fa75bc493dc2f89c992a0e/reports/9cc4a076-d0a9-4698-b05e-fcb3c321cfed/overview
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8e73d53c-45e1-43cf-9e99-6c53a4c82bbd
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1051710
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 684220 Sample: mt1033 pdf.exe Startdate: 15/08/2022 Architecture: WINDOWS Score: 100 32 www.zacharylondono.com 2->32 34 zacharylondono.com 2->34 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus detection for URL or domain 2->40 42 Multi AV Scanner detection for submitted file 2->42 44 6 other signatures 2->44 11 mt1033 pdf.exe 3 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\...\mt1033 pdf.exe.log, ASCII 11->30 dropped 14 mt1033 pdf.exe 11->14         started        17 mt1033 pdf.exe 11->17         started        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 14->19 injected process8 dnsIp9 36 www.ankus-enfranchise.com 19->36 46 System process connects to network (likely due to code injection or exploit) 19->46 23 help.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 52 Tries to detect virtualization through RDTSC time measurements 23->52 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/d7891c230103e0424c00cb31edfe25873433c901bd999772d9ab9013ba1e1da0/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-08-15 07:33:08 UTC
AV detection:
3 of 40 (7.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=26eryiybapqeetaazmy637rfq42dhsibxwmzo4wzvoibhoq6dwqa._file
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:s82r rat spyware stealer trojan
Link:
https://tria.ge/reports/220815-t3m7dsgab2/
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 WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
478cbff7518722affe5dae6d374f54798c074bae38e2501f04e55f693c0e7929
MD5 hash:
c3b39e815eca799d5abe7e318f93cfad
SHA1 hash:
ee7c54eeea95ea195fc5537b20208a05e45e2956
Detections:
win_formbook_g0
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win_formbook_auto
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FormBook
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Link:
https://www.unpac.me/results/657f68a1-f47d-44d8-af34-7fa5807a68a2/
SH256 hash:
6b9241ba4388d1accc69b3bc3a990e939e08b6d934349b4e614c5333663264d8
MD5 hash:
cce0dad8149ac7e834a44f72597fdcb9
SHA1 hash:
9ecd3cd0cc0cd6efe147fb53ca13601faa4c9a12
Link:
https://www.unpac.me/results/657f68a1-f47d-44d8-af34-7fa5807a68a2/
SH256 hash:
6d7553edda94943d297a78b9533b4c1ed37f4d4c2b047460481ed19fe15ed1fa
MD5 hash:
386fe8034e24fba93a18a1004fe5be9b
SHA1 hash:
2a958b9eff47d52d17d75476ea38b974a928d63b
Link:
https://www.unpac.me/results/657f68a1-f47d-44d8-af34-7fa5807a68a2/
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
Link:
https://www.unpac.me/results/657f68a1-f47d-44d8-af34-7fa5807a68a2/
SH256 hash:
1b72d49a5e3db7a7a157408ac93240c7e0316ed7f6ddd10befc1af7e4bf7f68c
MD5 hash:
9c1436a35d82492bd09b6d65e4eaf94a
SHA1 hash:
2177711310aef753f821b881a4ee7f64f3bc9ef8
Link:
https://www.unpac.me/results/657f68a1-f47d-44d8-af34-7fa5807a68a2/
SH256 hash:
d7891c230103e0424c00cb31edfe25873433c901bd999772d9ab9013ba1e1da0
MD5 hash:
ad01a56e0c48374566e05e62c93d74c1
SHA1 hash:
126e3913a63c5b0cd0455cb51760da8c64d86e4d
Link:
https://www.unpac.me/results/657f68a1-f47d-44d8-af34-7fa5807a68a2/
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/d7891c230103e0424c00cb31edfe25873433c901bd999772d9ab9013ba1e1da0

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
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Rule name:Skystars_Malware_Imphash
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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 d7891c230103e0424c00cb31edfe25873433c901bd999772d9ab9013ba1e1da0

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/298792/

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