MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f477ff9ff2a431f168d2defd7c9b62ae9f0648488e9977479e407468d5cdce1e. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments
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SHA256 hash: f477ff9ff2a431f168d2defd7c9b62ae9f0648488e9977479e407468d5cdce1e
SHA3-384 hash: 17ae92bd81b09b150d7f716ced9868870b697f839d742ece3684fa337e3ba2ebd070c7d2459c8a52109a6db41f1e78fd
SHA1 hash: c6e8db181a8e6aa04ab5b51244cb23d9fede55c6
MD5 hash: c6016281cc5bde3457c885a238257cb3
humanhash: lake-potato-sad-artist
File name:c6016281cc5bde3457c885a238257cb3.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:532'992 bytes
First seen:2022-02-14 07:17:08 UTC
Last seen:2022-02-14 09:17:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'749 x AgentTesla, 19'653 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 12288:LxkzcZ8YjkRl1NKDuhH8SOv3gT6Ri+BbJne+ox1bbbbbbbbbbbbbbbbbbbbbbbbx:ezVTNK6hDa3g2B
Threatray 13'394 similar samples on MalwareBazaar
TLSH T19CB45CD87D7502CAFAFC0AB17F4763153AF12628C8C65247F8B72615A753AA53C08B8D
File icon (PE):PE icon
dhash icon d8c4ccc4d4dcd4c4 (2 x Formbook, 2 x AgentTesla)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
208
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/241294/
Detection(s):
SecuriteInfo.com.Heur.MSIL.Androm.1.25784.28377.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Launching a process
Creating a file
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Enabling autorun by creating a file
Unauthorized injection to a system process
Gathering data
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/08778551-d717-401b-a234-cd6066e712e4
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/939143
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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 virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 571617 Sample: ZXAAhPUFkw.exe Startdate: 14/02/2022 Architecture: WINDOWS Score: 100 37 tring.clo.footprintdns.com 2->37 39 www.dulichsinhthaikhanhson.com 2->39 47 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 11 other signatures 2->53 11 ZXAAhPUFkw.exe 5 2->11         started        signatures3 process4 file5 31 C:\Users\user\...\Creative_Cloud_Set-Up.exe, PE32 11->31 dropped 33 Creative_Cloud_Set...exe:Zone.Identifier, ASCII 11->33 dropped 35 C:\Users\user\AppData\...\ZXAAhPUFkw.exe.log, ASCII 11->35 dropped 63 Creates an undocumented autostart registry key 11->63 65 Writes to foreign memory regions 11->65 67 Allocates memory in foreign processes 11->67 69 Injects a PE file into a foreign processes 11->69 15 MSBuild.exe 11->15         started        18 conhost.exe 11->18         started        signatures6 process7 signatures8 71 Modifies the context of a thread in another process (thread injection) 15->71 73 Maps a DLL or memory area into another process 15->73 75 Sample uses process hollowing technique 15->75 77 2 other signatures 15->77 20 explorer.exe 15->20 injected process9 dnsIp10 41 www.cafes-lyovel.com 51.91.236.255, 49839, 80 OVHFR France 20->41 43 www.efasthosting.com 23.27.138.9, 49834, 80 EGIHOSTINGUS United States 20->43 45 4 other IPs or domains 20->45 55 System process connects to network (likely due to code injection or exploit) 20->55 24 raserver.exe 20->24         started        signatures11 process12 signatures13 57 Modifies the context of a thread in another process (thread injection) 24->57 59 Maps a DLL or memory area into another process 24->59 61 Tries to detect virtualization through RDTSC time measurements 24->61 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/f477ff9ff2a431f168d2defd7c9b62ae9f0648488e9977479e407468d5cdce1e/
Threat name:
ByteCode-MSIL.Backdoor.Androm
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Status:
Malicious
First seen:
2022-02-14 06:30:24 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
15 of 43 (34.88%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6r377h7suqy7c2gs336xzg3cv2pqmscir2mxor46ib2grvonzypa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
34fc8a270fda2856448cb455e3dca4d8210f5e83f25f1fa8339d8f428a449466
Formbook
41d5c1e02c1b4a694660a1c8759ffd46569f5b9574ed99a08d3f00cd2765d2d0
Formbook
79215526b0229696bf3961e09918bca444cb43b079ca70834c54db52c49c51ac
Formbook
88d97538adda1f29e2f088883d64db0776c2f7e9c80a2a789785c4af970ec129
Formbook
b972dfd3f5fd6142b67366d223c0056b75d3d93538a7c05ce35e27ad1c9541ed
Formbook
ccf47d9fd0a0ddce06c265b87f0e2377bb58107c18659ac908b7e3a5731ad081
Formbook
d2cc3484cdabe8305bf9afd35530ca1118ca2c308408dc7140c3a94b392b60bb
Formbook
+ 13'384 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:c0a7 loader rat suricata
Link:
https://tria.ge/reports/220214-h5htxahhcq/
Behaviour
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Drops file in Windows directory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
cb1394d16894be7b9488b629afb19674f84d216c1117e68975f94452dbaec74c
MD5 hash:
9e3cfde2483b22fc8fd53bf100daa9b8
SHA1 hash:
5234960821495aec0a74dc440568366b8d9c225e
Detections:
win_formbook_g0
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win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/ac4f69ab-e5e1-41a7-9ecc-449c12848f86/
Parent samples :
5750f0a05c92bfe3323fb9e1e3c316a44e01338b9e2f02f4099424c3e37bc8cc
ccf47d9fd0a0ddce06c265b87f0e2377bb58107c18659ac908b7e3a5731ad081
f477ff9ff2a431f168d2defd7c9b62ae9f0648488e9977479e407468d5cdce1e
a73fffb5cb53f03b1a59a712cf34a8b156f1dec4a8c2757a475431edc659e6aa
f84b362a10ce6a355e3d48e602f672416acddab0194b1dc0ffaa01213bf28d2a
SH256 hash:
617bf624664add72ea2b177bb38891fb93a4b4654a40b5b2663f36dd530887e1
MD5 hash:
5d36fd0d04dfcb1b04a3f39dea40c31f
SHA1 hash:
b49a84f195325fca5240246365a3636e7a9064ba
Link:
https://www.unpac.me/results/ac4f69ab-e5e1-41a7-9ecc-449c12848f86/
SH256 hash:
7089b0b4e501ee5751bf3f622e58f3db6fa892177821c90a4c864bb5396521d1
MD5 hash:
c88fbee2acea519475b8ff1b4ed93a43
SHA1 hash:
48e24f1be042ff744cbbe3bdc26f0faaf3a78774
Link:
https://www.unpac.me/results/ac4f69ab-e5e1-41a7-9ecc-449c12848f86/
SH256 hash:
1c320dd421e0c23953ddcc12370d9ea12cbd71f9cf70ca3aa4bfa5a12691f0db
MD5 hash:
a6dccf9720251d38facdc268df5c1db7
SHA1 hash:
0780fa172c546e474e6fa997623194eaa698777e
Link:
https://www.unpac.me/results/ac4f69ab-e5e1-41a7-9ecc-449c12848f86/
SH256 hash:
f477ff9ff2a431f168d2defd7c9b62ae9f0648488e9977479e407468d5cdce1e
MD5 hash:
c6016281cc5bde3457c885a238257cb3
SHA1 hash:
c6e8db181a8e6aa04ab5b51244cb23d9fede55c6
Link:
https://www.unpac.me/results/ac4f69ab-e5e1-41a7-9ecc-449c12848f86/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/f477ff9ff2a4/report/overview.html
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/f477ff9ff2a431f168d2defd7c9b62ae9f0648488e9977479e407468d5cdce1e

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
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Typical_Malware_String_Transforms
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Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research

File information

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

Web download

Formbook

Executable exe f477ff9ff2a431f168d2defd7c9b62ae9f0648488e9977479e407468d5cdce1e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2039562/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/241294/

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