MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c6cf3dd51c256ea804a793af94fa9e62da8d3208d1ea25b11042ed9e021db6e. 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 3 File information Comments 1
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SHA256 hash: 8c6cf3dd51c256ea804a793af94fa9e62da8d3208d1ea25b11042ed9e021db6e
SHA3-384 hash: c18fe29fec5bc2e9c6cb7e347580c01176b9b520e692035ea638736aed91f5a1767c8e771fb11122538e6269571bb0d2
SHA1 hash: 1d73efa34e4f2dd4b096a1b4e303d1627acd3b39
MD5 hash: 9a9c85a39a373c347bd37400d75b4f02
humanhash: triple-kentucky-burger-music
File name:9a9c85a39a373c347bd37400d75b4f02
Download: download sample
Signature Formbook
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File size:686'592 bytes
First seen:2022-06-15 20:09:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:iKAmk7rM43oK6cqfGJ+bcKuhVnLfdyodNp/pNffwU/FdgGT:LAmYrM/K6iRhVn8odzxtbFGGT
TLSH T1A2E4CF15FA6ACD12C3882BB7C8C6550847749642D157EB4F3ADA33EA1D073BEDC4628B
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 00f6f6f6d2d2f600 (3 x Formbook)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
256
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/280371/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.5680.30498.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62aa3cdcb0582adf05a933e5/reports/91b00040-6881-4e68-98e8-00749c6f4606/overview
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/10fded81-04bd-4a17-9030-be31edf02ce7
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1014023
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
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
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 signatures2 2 Behavior Graph ID: 646517 Sample: EfgJRmGiuf Startdate: 15/06/2022 Architecture: WINDOWS Score: 100 38 Malicious sample detected (through community Yara rule) 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 Yara detected AntiVM3 2->42 44 5 other signatures 2->44 10 EfgJRmGiuf.exe 3 2->10         started        process3 file4 32 C:\Users\user\AppData\...fgJRmGiuf.exe.log, ASCII 10->32 dropped 54 Tries to detect virtualization through RDTSC time measurements 10->54 14 EfgJRmGiuf.exe 10->14         started        17 EfgJRmGiuf.exe 10->17         started        19 EfgJRmGiuf.exe 10->19         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 21 explorer.exe 14->21 injected process8 dnsIp9 34 www.bravosbraziliansteakhouse.com 21->34 36 bravosbraziliansteakhouse.com 34.102.136.180, 49776, 80 GOOGLEUS United States 21->36 46 System process connects to network (likely due to code injection or exploit) 21->46 25 cmmon32.exe 21->25         started        signatures10 process11 signatures12 48 Modifies the context of a thread in another process (thread injection) 25->48 50 Maps a DLL or memory area into another process 25->50 52 Tries to detect virtualization through RDTSC time measurements 25->52 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/8c6cf3dd51c256ea804a793af94fa9e62da8d3208d1ea25b11042ed9e021db6e/
Threat name:
ByteCode-MSIL.Spyware.Noon
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Status:
Malicious
First seen:
2022-06-14 16:40:59 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
19 of 26 (73.08%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rrwphxkryjlovackpe5pst5j4yw2ruzarupkewyraqxntybb3nxa._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:f02e rat spyware stealer trojan
Link:
https://tria.ge/reports/220615-yxn9qaeha7/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Unpacked files
SH256 hash:
0d8f5c8ec491b768b4a24b4004f4ef3d358b3fc22abbb1c429ee80e43f73bf8d
MD5 hash:
6297ff1b4376e8b2a1c0a0fbdc37ba83
SHA1 hash:
0c47b9a30a34d853379d073362d3d9e28a5997d7
Link:
https://www.unpac.me/results/5c2038ab-16d1-4c99-a148-4bff2a8ec1b5/
SH256 hash:
4d11289b254751b58121d2bdfd53ae62a4ae909cfd28e953a3c4c60d40618359
MD5 hash:
7a1895bd494c5da9d83710b8d44d268d
SHA1 hash:
68c9d218b28fbaf222624f964dcb84862164359e
Link:
https://www.unpac.me/results/5c2038ab-16d1-4c99-a148-4bff2a8ec1b5/
SH256 hash:
dc31aa0188e4fd3a41bd11637c9bbad2c5e399ea3f3e5c365b50765a3f5d4d8c
MD5 hash:
2bcd137302c1b69f90d8fa7616cf955b
SHA1 hash:
9ed5f73c0bd24e48a31cfb50b73ba3c4becd7c12
Link:
https://www.unpac.me/results/5c2038ab-16d1-4c99-a148-4bff2a8ec1b5/
SH256 hash:
52aa7c16a6eb4c879d8a879c8656c693cdbf77f418992d7bb932f46aba26732d
MD5 hash:
cb6ce91ee0ad5ebecb34230447253091
SHA1 hash:
b70fcf60d705b9414ad3b6b997412e7ad75e96a3
Link:
https://www.unpac.me/results/5c2038ab-16d1-4c99-a148-4bff2a8ec1b5/
SH256 hash:
2f6cfd6e244e4f7cf74f98a9dbb4380e60315b3c1bf51de3d4bc45ed5346c0af
MD5 hash:
647d3649f3ad477f016229d939a951fe
SHA1 hash:
a0e6d455cc77b5f131b6889b0b53b64757d935fa
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/5c2038ab-16d1-4c99-a148-4bff2a8ec1b5/
Parent samples :
8c6cf3dd51c256ea804a793af94fa9e62da8d3208d1ea25b11042ed9e021db6e
b98b36386c77a585d5b8f5a5d0e5bea1d7e4722e0ebf3e224284e12bd77ddbae
28fc7ef1aa47bbec6342320a56f7accc1bc57cf96a5b75762f33fb5f9eea96c7
11d6c53b493966f211c1c2bea054385dbb189f3505e237ca544488884a39562f
f65cab4e1be0cd94844f227bd7c5b2c0b875970973d271a0a2deaf0a700bfaed
a96a34c47ca8192a0e77c99c8993a08bc4f66824bb243f423db8632491df13a6
SH256 hash:
8c6cf3dd51c256ea804a793af94fa9e62da8d3208d1ea25b11042ed9e021db6e
MD5 hash:
9a9c85a39a373c347bd37400d75b4f02
SHA1 hash:
1d73efa34e4f2dd4b096a1b4e303d1627acd3b39
Link:
https://www.unpac.me/results/5c2038ab-16d1-4c99-a148-4bff2a8ec1b5/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8c6cf3dd51c2/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/8c6cf3dd51c256ea804a793af94fa9e62da8d3208d1ea25b11042ed9e021db6e

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:exploit_any_poppopret
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Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
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 8c6cf3dd51c256ea804a793af94fa9e62da8d3208d1ea25b11042ed9e021db6e

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/280371/
  
URLhaus
https://urlhaus.abuse.ch/url/2239476/
  
URLhaus
https://urlhaus.abuse.ch/url/2239475/

Comments


Avatar
zbet commented on 2022-06-15 20:09:59 UTC

url : hxxp://103.167.84.176/sshsever/vbc.exe