MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4c73fd4286e76a094eefafe5369f3a184ca4a38d567ae6dfad61645bf968a83f. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4c73fd4286e76a094eefafe5369f3a184ca4a38d567ae6dfad61645bf968a83f
SHA3-384 hash: 396ed7e9dc6ffb7c30019e48d56f5e100a3538b2db592c8312a41d0df68a06f79fc3959db3cecb709e9f4f8f159943ed
SHA1 hash: 52c3ca02828a4ad8e8dbf790a61b3d77379ad391
MD5 hash: bb30a5dd4130b071fb4ca5f005371c63
humanhash: mango-hydrogen-stairway-william
File name:bb30a5dd4130b071fb4ca5f005371c63.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:711'168 bytes
First seen:2020-11-20 18:45:21 UTC
Last seen:2020-11-20 20:42:19 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:8uuG4MYHtSghDUtXrVNRk6ivKdKPWD4axof2YwhOT6lt6CjC2rPTVeOywSXvAfC:bjYMghDOXrK64KdIw4aVD82
Threatray 3'003 similar samples on MalwareBazaar
TLSH EDE49DAC76A0769FC82BCD72CD681C60EBA17477871BD247905314AD9A1D99BCF202F3
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
402
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a file
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/544398
Signature
Allocates memory in foreign processes
Injects a PE file into a foreign processes
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)
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
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
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 321296 Sample: vOKMFxiCYt.exe Startdate: 20/11/2020 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 5 other signatures 2->42 10 vOKMFxiCYt.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\vOKMFxiCYt.exe.log, ASCII 10->28 dropped 52 Writes to foreign memory regions 10->52 54 Allocates memory in foreign processes 10->54 56 Injects a PE file into a foreign processes 10->56 14 RegSvcs.exe 10->14         started        signatures5 process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 2 other signatures 14->64 17 explorer.exe 14->17 injected process8 dnsIp9 30 auctionpros.club 162.0.232.118, 49741, 80 NAMECHEAP-NETUS Canada 17->30 32 reem.pro 34.102.136.180, 49737, 80 GOOGLEUS United States 17->32 34 6 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 raserver.exe 17->21         started        signatures10 process11 signatures12 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4c73fd4286e76a094eefafe5369f3a184ca4a38d567ae6dfad61645bf968a83f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-11-20 02:14:19 UTC
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jrz72qug45vastxpv7stnhz2dbgkji4nkz5onx5nmfsfx6liva7q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
netwirerc
Create hunting rule
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115e12fb613c8200563e60ee8acd822733772ebac21e27f203a7342043442d8a
Formbook
15655af972b632964f3327334c8809fb6cd6cd04e43f4548a32a5bb5743a75bc
Formbook
37be898f8c2b0f9dfc4663070ae1ac1fd0f4edc08760d5c40fb18c7353f7f476
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410b12d131a36c0b5be88c52e6ad02a1e50b20c4d80f30de42ea5a260fc92624
Formbook
61cd0eb067277dda91558901ac1d3b45bf56f4d4fec39270e4975de550477513
Formbook
73c740cf8efc312c3fed42aceee4f4513b8ce620aaf31793676f8de2810fdadb
Formbook
82f4ebd30b18743d8cc409de5931a978434755705af9bbfa3c6d8d0b34d30a6b
Formbook
89bf15eae14f60d6acc308cead31f09459947626b9839bbbddbf76f00821fe3b
Formbook
93a0f97c3198a1ba4fafeb2c5fd7bd44f425cc5c9ad126880128d1ec22cc22ec
Formbook
b19d067a87767c377a60981192e5edb9256ce11f7d663cdcae2af3d8d0c0c382
Formbook
+ 2'993 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/201120-cxyd18pnax/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.digitalcashteam.com/glt/
Unpacked files
SH256 hash:
4c73fd4286e76a094eefafe5369f3a184ca4a38d567ae6dfad61645bf968a83f
MD5 hash:
bb30a5dd4130b071fb4ca5f005371c63
SHA1 hash:
52c3ca02828a4ad8e8dbf790a61b3d77379ad391
Link:
https://www.unpac.me/results/68e9185c-fa40-42fe-bfd7-124f07260bd0/
SH256 hash:
c8671a87d685f2354d96f3cfcad530dfa5f3ec535a0f5ec14940d81fb857813b
MD5 hash:
b5358f677850210361f573c7d249c258
SHA1 hash:
215e06e319515d779efa88f7c05b343d6ec3f6a5
Link:
https://www.unpac.me/results/68e9185c-fa40-42fe-bfd7-124f07260bd0/
SH256 hash:
0fa23733cca7e51473093c56478de1dec03574d3ec4b189d324282fae9d844f0
MD5 hash:
9dcf07f1fdaefd47cf37596db115018f
SHA1 hash:
29174acb549e0dbd9263eb4e71adf48177eb2cb9
Link:
https://www.unpac.me/results/68e9185c-fa40-42fe-bfd7-124f07260bd0/
SH256 hash:
c6fcf5d515d56cf746b4c4aa4695f11e9ad7f6063a96cda810bf39dc47c5a7a0
MD5 hash:
47509d9db24c975e55c287afdc459fad
SHA1 hash:
4f1f893555c985d7cbba731cf1fdbf49c6ecf793
Link:
https://www.unpac.me/results/68e9185c-fa40-42fe-bfd7-124f07260bd0/
SH256 hash:
fd6b4ff4a02afd43ad2589950eb0bcdf2472aee1534d8e84137b4247fae55a2a
MD5 hash:
7f9a52ce76370e5e8e94709138f7a72a
SHA1 hash:
ef90e7640cf555292f0c864c0050036a5ce3ec48
Link:
https://www.unpac.me/results/68e9185c-fa40-42fe-bfd7-124f07260bd0/
SH256 hash:
2657c78285f08d3270f8722b21d405ccabe052a892bb3cac855ea134c6d66bf1
MD5 hash:
98ed1fb230abecf136a308c85866bdb7
SHA1 hash:
3a81b5584a52acd8ac5b71b19c17573e4e49635a
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/68e9185c-fa40-42fe-bfd7-124f07260bd0/
Parent samples :
61cd0eb067277dda91558901ac1d3b45bf56f4d4fec39270e4975de550477513
759f0e7cf8b5ab1301ed2a96bfdfb938660c0acbea1cfa87c5e33c3f976afb43
37be898f8c2b0f9dfc4663070ae1ac1fd0f4edc08760d5c40fb18c7353f7f476
ce7d07f009b3e4548e852f20cc95dd3ab2a01f19f98279666bda63fc60edd77f
4c73fd4286e76a094eefafe5369f3a184ca4a38d567ae6dfad61645bf968a83f
28c2f982e046fd592e5a6d27294437b3b603a90d3f21fc7a9194e070f7c988c9
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4c73fd4286e76a094eefafe5369f3a184ca4a38d567ae6dfad61645bf968a83f

File information

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

Web download

Formbook

Executable exe 4c73fd4286e76a094eefafe5369f3a184ca4a38d567ae6dfad61645bf968a83f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/836545/
  
Delivery method
Distributed via web download

Comments