MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e745791e3faad64dc3c475e87b458ac60853d5ca429a32b812c6bacbc841ef99. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
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SHA256 hash: e745791e3faad64dc3c475e87b458ac60853d5ca429a32b812c6bacbc841ef99
SHA3-384 hash: 8680d1d4633a928ebc66ff98d180e2bfc8ebb3ed8bbd35504ab10af1d8ce1c9e7f783309cb09ab6b28af252ec4cb69be
SHA1 hash: 5bf6a725c3d716e8c5321f3b99634d1436b610bf
MD5 hash: 9f71fdb83fe1dfcd15db9556d9bbdcf9
humanhash: snake-uranus-black-harry
File name:No. STB42020.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:859'136 bytes
First seen:2022-03-03 22:36:55 UTC
Last seen:2022-03-04 01:00:19 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 24576:ANXGFprbH5APmsw3t7z9GzV0SIqQ6O+W:OGFBbZAus+59+V0Wd
Threatray 14'599 similar samples on MalwareBazaar
TLSH T1B205D00438E68034F97A8BB1DEC4E7F09B2EF225E149B0F654105E157646BBE8949EFC
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
262
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/247138/
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25.27294.18552.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
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/f6435ff5-c382-4ed5-b7e9-faa4fc4785cd
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/950444
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses ipconfig to lookup or modify the Windows network settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 582925 Sample: No. STB42020.exe Startdate: 03/03/2022 Architecture: WINDOWS Score: 100 32 store-images.s-microsoft.com 2->32 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus detection for URL or domain 2->42 44 8 other signatures 2->44 11 No. STB42020.exe 3 2->11         started        signatures3 process4 file5 30 C:\Users\user\...30o. STB42020.exe.log, ASCII 11->30 dropped 14 No. STB42020.exe 11->14         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 17 explorer.exe 14->17 injected process8 signatures9 36 Uses ipconfig to lookup or modify the Windows network settings 17->36 20 ipconfig.exe 17->20         started        process10 signatures11 46 Self deletion via cmd delete 20->46 48 Modifies the context of a thread in another process (thread injection) 20->48 50 Maps a DLL or memory area into another process 20->50 52 Tries to detect virtualization through RDTSC time measurements 20->52 23 explorer.exe 1 127 20->23         started        26 cmd.exe 1 20->26         started        process12 dnsIp13 34 192.168.2.1 unknown unknown 23->34 28 conhost.exe 26->28         started        process14
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/e745791e3faad64dc3c475e87b458ac60853d5ca429a32b812c6bacbc841ef99/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-03-03 10:53:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
24 of 27 (88.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=45cxshr7vlle3q6eoxuhwrmkyyefhvokikndfoasy25mxscb56mq._file
Verdict:
malicious
Label(s):
formbook
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Similar samples:
070264132f92fc5cb01521385e73bf36954d4093da205c59821e844abed68b5f
Formbook
28c28db28e96276f72ce38a60d04f0711388d3f93ecb34d4721dc94fc2bf9f07
Formbook
2af6b1cfe8812e9e1679f3a6a58a158420e771341dbea64f4853d6966bb589b2
Formbook
5645d9e38c998f5db43ae93e35339d7dca0a96b81f806b370624e7410e2eea0a
Formbook
60b97b4d45e3850d57a661bf37987909c1f99096384123594cc1b79d5449348f
Formbook
9655ee4ca1167f87d9245041ab59e861d6b3bdde7897a3b4cb2deee8550bdaaa
Formbook
c0b711533265ba0808d1f7a5fc9b0dd17e19187c9566d9908763d27aaddf023c
Formbook
dadfe6c54e7000472e145b38e7410fbfef963566a06811ede626705a9e98a53e
Formbook
dfd8941401c6e44bf380f982cd4b78d847f87fd3ea364418b00ceec92f97c500
Formbook
f725b6a2466a6f4c7084eeab5994e30b8ef836633c1a84d85c1899deb1808d3c
Formbook
+ 14'589 additional samples on MalwareBazaar
Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:m46a loader rat
Link:
https://tria.ge/reports/220303-2jslrscfg6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
f7b953613cb87b7220f9b73583982a07afa136effe6e1d56ae3a4c0230968bd1
MD5 hash:
6fb87f025ce2d1fc228bf046605d0854
SHA1 hash:
711a8868cf1f6ef62c82578a7e759130cf40f80a
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/01a20734-c334-4cb1-8e21-3f516f2a7955/
Parent samples :
5645d9e38c998f5db43ae93e35339d7dca0a96b81f806b370624e7410e2eea0a
e5f3bd60bce911ddbe8272a218b0690fff6b36f5876a51f26914b4b066d17ca6
e745791e3faad64dc3c475e87b458ac60853d5ca429a32b812c6bacbc841ef99
6a68426f18f239950d5bb0d82223890b44ea10de5a5fa83294457dd3dcdc5068
SH256 hash:
6b36a1e49ee6403630578ffeaad9f8d0703ebafaca296f5eedd3c33b4cf0634b
MD5 hash:
d66467b64bc1115a935687ab160aaa69
SHA1 hash:
f6524440df1b836b6c5da585425650ac7f92ae44
Link:
https://www.unpac.me/results/01a20734-c334-4cb1-8e21-3f516f2a7955/
SH256 hash:
490b05edc7d50415f93e8f37fdf58235cb9fb11061ce38491c4cfab4a064b18e
MD5 hash:
73525be6d4975acc5e53f66e889b5835
SHA1 hash:
d4b3c27a17da2de67b80515542a77ee4e52fb649
Link:
https://www.unpac.me/results/01a20734-c334-4cb1-8e21-3f516f2a7955/
SH256 hash:
e3bdaf9e98eb65a070cf4424bc123e57ade151c41e4a0d375e769749155c1715
MD5 hash:
78a25e75b94923e889ecd100349facbe
SHA1 hash:
6b3f8db525d3c98f92ed480e664ab8ee9458340b
Link:
https://www.unpac.me/results/01a20734-c334-4cb1-8e21-3f516f2a7955/
SH256 hash:
e745791e3faad64dc3c475e87b458ac60853d5ca429a32b812c6bacbc841ef99
MD5 hash:
9f71fdb83fe1dfcd15db9556d9bbdcf9
SHA1 hash:
5bf6a725c3d716e8c5321f3b99634d1436b610bf
Link:
https://www.unpac.me/results/01a20734-c334-4cb1-8e21-3f516f2a7955/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/e745791e3faa/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/e745791e3faad64dc3c475e87b458ac60853d5ca429a32b812c6bacbc841ef99

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 e745791e3faad64dc3c475e87b458ac60853d5ca429a32b812c6bacbc841ef99

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/247138/

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