MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 75e52fcffe8c57f96f521a16c80c3cfc75770ecd0f929cb88d1d4ed6f9d6e923. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments
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SHA256 hash: 75e52fcffe8c57f96f521a16c80c3cfc75770ecd0f929cb88d1d4ed6f9d6e923
SHA3-384 hash: 0f9a5770976f264f7073be59fb4d87df939413f30c9e29165bed6677e8fc06ecbd8d29afe532e9a7ed3386d64a6484ad
SHA1 hash: b2e76c447aa3c3dcca7f8086b90070ee74503d88
MD5 hash: 9fcd4eaef1f2048a6c0316bbcbfdcded
humanhash: paris-double-leopard-victor
File name:AJXmdXEIOAoqPra.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:820'736 bytes
First seen:2022-02-17 07:10:51 UTC
Last seen:2022-02-17 08:28:26 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'473 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:v5VkoSbrlIi2K5Lumz7kMI/ty4uulkp2J4iBu02ySY63M:abrlI3m9B6kpydsm83
Threatray 13'546 similar samples on MalwareBazaar
TLSH T1E905BE5631FF1096D3A2EBF10BD8E8BF966AF173520F763A31811B46C366A40CA42775
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
231
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/242173/
Detection(s):
SecuriteInfo.com.Trojan.Siggen16.57439.18760.11821.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
greyware obfuscated packed remote.exe replace.exe
Link:
https://www.filescan.io/uploads/620df50ea2660f3bb9ee2df4/reports/4d84864f-7c86-49b9-8c91-a6a446f6a5d5/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Gathering data
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/941389
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)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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 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: 573866 Sample: AJXmdXEIOAoqPra.exe Startdate: 17/02/2022 Architecture: WINDOWS Score: 100 35 www.britishdrivers-uk.online 2->35 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 8 other signatures 2->49 11 AJXmdXEIOAoqPra.exe 3 2->11         started        signatures3 process4 file5 33 C:\Users\user\...\AJXmdXEIOAoqPra.exe.log, ASCII 11->33 dropped 65 Tries to detect virtualization through RDTSC time measurements 11->65 67 Injects a PE file into a foreign processes 11->67 15 AJXmdXEIOAoqPra.exe 11->15         started        18 AJXmdXEIOAoqPra.exe 11->18         started        signatures6 process7 signatures8 69 Modifies the context of a thread in another process (thread injection) 15->69 71 Maps a DLL or memory area into another process 15->71 73 Sample uses process hollowing technique 15->73 75 Queues an APC in another process (thread injection) 15->75 20 explorer.exe 15->20 injected process9 dnsIp10 37 www.buzikej.xyz 20->37 39 www.indogentingsport88.com 188.114.97.15, 49775, 80 CLOUDFLARENETUS European Union 20->39 41 11 other IPs or domains 20->41 51 System process connects to network (likely due to code injection or exploit) 20->51 53 Performs DNS queries to domains with low reputation 20->53 55 Uses ipconfig to lookup or modify the Windows network settings 20->55 24 ipconfig.exe 20->24         started        27 autofmt.exe 20->27         started        signatures11 process12 signatures13 57 Self deletion via cmd delete 24->57 59 Modifies the context of a thread in another process (thread injection) 24->59 61 Maps a DLL or memory area into another process 24->61 63 Tries to detect virtualization through RDTSC time measurements 24->63 29 cmd.exe 1 24->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/75e52fcffe8c57f96f521a16c80c3cfc75770ecd0f929cb88d1d4ed6f9d6e923/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-02-17 07:11:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
48
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=oxss7t76rrl7s32sdilmqdb47r2xodwnb6jjzoendvhnn6ow5erq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2fd3db9eb65d7a120e24e7245a73e4e88d4b2a7998d82986e8b2e2f20af1d932
Formbook
3446a9d1fcd21b6e219220379f6b82cccf3cb967b9af1f9e91fa511e90eab639
Formbook
47d424c280738861bd8cf731e43137dc875d186cd277c6db8ab98f3e74453022
Formbook
503afb59d8192f6adb3e67db043eeb6459e8ec3fc117ef8e2f6690d5f0c4a12b
Formbook
640ac0fcf97c0474f805fdf150d7c539650a833e1cbb47393e188da5a1f5f5c3
Formbook
950ead10061a0d06ae1314f85d90925ed519d91ff8360236960e9abf68a99b7c
Formbook
9bceb9680d39094087add5289a7e19aa93168faf9c5f2465700b117d59e8d841
Formbook
b5ca813a9176c8f6eb9394308c56858d9e27300f9c5a75c82eceae96b8defd83
Formbook
ccf47d9fd0a0ddce06c265b87f0e2377bb58107c18659ac908b7e3a5731ad081
Formbook
+ 13'536 additional samples on MalwareBazaar
Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:ufpm loader rat suricata
Link:
https://tria.ge/reports/220217-hzyyyabegl/
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
Drops file in Windows directory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
0f59e81aa6ee6a72e52273ad320bd48a0a24e93d846173fb12959fb04591a6ba
MD5 hash:
4189b22f033883705595b73f5d983ca9
SHA1 hash:
14f00a2b30b5ff4063e6e98c8a4070fb3a06663c
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/fe8a9da4-1fd7-4537-8500-4b3e940fc0d5/
Parent samples :
eaf8e616d7608cb817b693d98b74cc185071ed8cae8baf803c377a43080b8d67
75e52fcffe8c57f96f521a16c80c3cfc75770ecd0f929cb88d1d4ed6f9d6e923
6c07430c9d1395b644fd2ee312b6df3d7509a04a29065e31301e722c1ad00178
70c6fd4de902c8ccce31380698b123def84b4d209c8b824e1065349a5aee9de2
52c0e61d96bee61df6c543a1d38835bf8cb4691f777fd2e81bc377543a53ef24
SH256 hash:
a85616ab2d1d971087eb75b19520ddc2077a2cf25ba9386ba3d4275086ef8367
MD5 hash:
cba34178fdccee4e115cae37a08c328d
SHA1 hash:
8539f4f92f5276d01ad4771c8fcb9c8cdb3a08a0
Link:
https://www.unpac.me/results/fe8a9da4-1fd7-4537-8500-4b3e940fc0d5/
SH256 hash:
e7af1b83b4d4d95ddf5f6b364ccb8c7e000a6c5dcd7c078edec71458b7596f7f
MD5 hash:
59945119dfe9de1dff1ba148b0ab73a9
SHA1 hash:
5fb21a287f7aa5d6e97db7fe471bcc88e8a60c69
Link:
https://www.unpac.me/results/fe8a9da4-1fd7-4537-8500-4b3e940fc0d5/
SH256 hash:
6acb413553f9e01abcf68d3593a346a51b0730ae593758e756609a12c6ec26fd
MD5 hash:
a505146eac7e99b4a83c30d4fedf8b2d
SHA1 hash:
165ee8af8c3920876d3c12549999542c48087294
Link:
https://www.unpac.me/results/fe8a9da4-1fd7-4537-8500-4b3e940fc0d5/
SH256 hash:
75e52fcffe8c57f96f521a16c80c3cfc75770ecd0f929cb88d1d4ed6f9d6e923
MD5 hash:
9fcd4eaef1f2048a6c0316bbcbfdcded
SHA1 hash:
b2e76c447aa3c3dcca7f8086b90070ee74503d88
Link:
https://www.unpac.me/results/fe8a9da4-1fd7-4537-8500-4b3e940fc0d5/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/75e52fcffe8c57f96f521a16c80c3cfc75770ecd0f929cb88d1d4ed6f9d6e923

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
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 75e52fcffe8c57f96f521a16c80c3cfc75770ecd0f929cb88d1d4ed6f9d6e923

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/242173/

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