MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fa3b721595b9e5571bcfd42767aa563f6e363a3fff9e9cdbfb525d0f28e62eb7. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
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SHA256 hash: fa3b721595b9e5571bcfd42767aa563f6e363a3fff9e9cdbfb525d0f28e62eb7
SHA3-384 hash: 05112b926813baa0ab1e695a61812d4af7b2158b51535eb9ce5375fe851ba77874ad38e7bdc1d8b89d8396f8529a0ad6
SHA1 hash: 7659deb7b036736bba0887e8748b1fc90792f46a
MD5 hash: b0f02d1f93ed9515737aace325fc602c
humanhash: east-march-lithium-paris
File name:b0f02d1f93ed9515737aace325fc602c.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:861'184 bytes
First seen:2022-02-14 07:18:00 UTC
Last seen:2022-02-14 09:17:04 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 24576:HlzK40LZtEh41CgW0xJwyqBEln7J7Gldb:dZ0ti4YWqHBEl1GX
Threatray 13'303 similar samples on MalwareBazaar
TLSH T131051219AAB7A544C6380778E48541D01BAD8A1EA197E77F706F3CCD3FAB393453207A
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
177
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/241299/
Detection(s):
SecuriteInfo.com.Trojan.Siggen16.49024.14082.4145.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Creating a window
Unauthorized injection to a recently created process
Creating a file
Gathering data
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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f7d9b2fb-cbd8-460c-83de-4cd8f7a0b7cd
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/939138
Signature
.NET source code contains potential unpacker
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)
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 571612 Sample: rU3pXgcBBf.exe Startdate: 14/02/2022 Architecture: WINDOWS Score: 100 30 www.globcafe.com 2->30 32 www.cddsxy.com 2->32 34 2 other IPs or domains 2->34 54 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 6 other signatures 2->60 10 rU3pXgcBBf.exe 3 2->10         started        signatures3 process4 signatures5 62 Tries to detect virtualization through RDTSC time measurements 10->62 64 Injects a PE file into a foreign processes 10->64 13 rU3pXgcBBf.exe 10->13         started        16 rU3pXgcBBf.exe 10->16         started        process6 signatures7 66 Modifies the context of a thread in another process (thread injection) 13->66 68 Maps a DLL or memory area into another process 13->68 70 Sample uses process hollowing technique 13->70 72 Queues an APC in another process (thread injection) 13->72 18 chkdsk.exe 13->18         started        21 explorer.exe 13->21 injected process8 dnsIp9 42 Self deletion via cmd delete 18->42 44 Modifies the context of a thread in another process (thread injection) 18->44 46 Maps a DLL or memory area into another process 18->46 48 Tries to detect virtualization through RDTSC time measurements 18->48 24 cmd.exe 1 18->24         started        36 www.felixubek.quest 37.123.118.150, 49819, 80 UK2NET-ASGB United Kingdom 21->36 38 flakapk.com 138.201.59.23, 49822, 80 HETZNER-ASDE Germany 21->38 40 7 other IPs or domains 21->40 50 System process connects to network (likely due to code injection or exploit) 21->50 52 Performs DNS queries to domains with low reputation 21->52 26 autochk.exe 21->26         started        signatures10 process11 process12 28 conhost.exe 24->28         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fa3b721595b9e5571bcfd42767aa563f6e363a3fff9e9cdbfb525d0f28e62eb7/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-02-14 07:18:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
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Similar samples:
201616caaad839735dc703230c000ebb254e0435a77253e160622c8cfbe10cc6
Formbook
22259dc22f3239bde439c60287d4498f423a35c8e1c2b5963616569d9786252f
Formbook
31168981af16e0fc209774a91e04e5aaf622cacbed12e970b7a35db0705174d6
Formbook
5de06778dd414ee2cc418f089914bb7a656ccf854a30a004d286599cda4c4013
Formbook
7cbd8cc35b03d65491ad01b6a44b84dc047e6663189554201c24dbfbeb81473c
Formbook
acb28239c256d400e79f51a7f83036d19daa0d814d32dcf765d8ec9aa0293cea
Formbook
caf586c9d78e7b0adc9d91286228eba817463d60b912651f2aa43288441d4d48
Formbook
d2cc3484cdabe8305bf9afd35530ca1118ca2c308408dc7140c3a94b392b60bb
Formbook
e8e0f125d909bafae93f469222f2cfbcb30585e03825d8442c8934a92fdd6c89
Formbook
+ 13'293 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:u6f8 loader rat
Link:
https://tria.ge/reports/220214-h5htxahhdj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
ea838e0384811cc8fe8b402800db2c4e6d245b8fa7e19be75598b1acfcaf8e27
MD5 hash:
fbc09d4966f3efeaa13409622e7de925
SHA1 hash:
6181388dbff60fe021269c931054283129e99010
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/d9204780-823d-4311-94fe-d173c27b917f/
Parent samples :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 hash:
3ca74eb4ce4c2c5604dc298949ae47996d93063abfde0682d689205561d17d44
MD5 hash:
4e35b541f3d9162d0ac93d336df67779
SHA1 hash:
bb9e65761186806d4bada659e9d5db0c070501d4
Link:
https://www.unpac.me/results/d9204780-823d-4311-94fe-d173c27b917f/
SH256 hash:
8fbbd68534a3adb987994a9ea08c6c2b381b28c8c08b9cc7314b1bd4f62e6822
MD5 hash:
9d8e612575bb0a9269198bd53740368d
SHA1 hash:
32f7aaf48f5f42056e0162c58f3e46994d1a713a
Link:
https://www.unpac.me/results/d9204780-823d-4311-94fe-d173c27b917f/
SH256 hash:
c92175565662e9530e5d0cfdc9dba8814ffe516a587d83fbd3ef75ff553c21b0
MD5 hash:
be7b112ca0b2894e6da145c49b116289
SHA1 hash:
007f1ba9f1f5dd4687ede04826983d9cde598838
Link:
https://www.unpac.me/results/d9204780-823d-4311-94fe-d173c27b917f/
SH256 hash:
fa3b721595b9e5571bcfd42767aa563f6e363a3fff9e9cdbfb525d0f28e62eb7
MD5 hash:
b0f02d1f93ed9515737aace325fc602c
SHA1 hash:
7659deb7b036736bba0887e8748b1fc90792f46a
Link:
https://www.unpac.me/results/d9204780-823d-4311-94fe-d173c27b917f/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/fa3b721595b9/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/fa3b721595b9e5571bcfd42767aa563f6e363a3fff9e9cdbfb525d0f28e62eb7

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.

Web download

Formbook

Executable exe fa3b721595b9e5571bcfd42767aa563f6e363a3fff9e9cdbfb525d0f28e62eb7

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2035729/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/241299/

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