MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c2c738ee2230ec142259f31fc60cd23ce3bac65dec24427437ec79250fa3653. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8c2c738ee2230ec142259f31fc60cd23ce3bac65dec24427437ec79250fa3653
SHA3-384 hash: 5d3810cbd04ead4447c12940d031ddad6b73b1cf0a8088aba38853ad9ab6e4e7701242ad7efbaa5e221c4cde7acf501d
SHA1 hash: c3229136845186b926c1c047ad943a3dadb67402
MD5 hash: 6263deb8f5d3b2fa51ee952ec83866cc
humanhash: georgia-robin-fifteen-oregon
File name:6263deb8f5d3b2fa51ee952ec83866cc.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:925'696 bytes
First seen:2022-02-14 07:17:00 UTC
Last seen:2022-02-14 14:02:44 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:6qQE+DLZHyJVb9ZTAfkUZf9FCatWNlGGFiYPy9p:mE+DtHyJD6cxaClGGgAy9p
Threatray 13'009 similar samples on MalwareBazaar
TLSH T190150219B7A6D545C2B50FBDE8A102816B70EE2F4507D7BF709D398C2FAB3560932932
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
205
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/241293/
Detection(s):
SecuriteInfo.com.Trojan.Crypt.MSIL.12800.8971.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/df230151-4e78-4de8-86b1-6d5943fa71c9
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/939146
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)
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
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: 571621 Sample: UNrb0i64cE.exe Startdate: 14/02/2022 Architecture: WINDOWS Score: 100 33 www.ginawolfphotography.com 2->33 37 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 8 other signatures 2->43 11 UNrb0i64cE.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\UNrb0i64cE.exe.log, ASCII 11->31 dropped 55 Tries to detect virtualization through RDTSC time measurements 11->55 57 Injects a PE file into a foreign processes 11->57 15 UNrb0i64cE.exe 11->15         started        18 UNrb0i64cE.exe 11->18         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Sample uses process hollowing technique 15->63 65 Queues an APC in another process (thread injection) 15->65 20 explorer.exe 15->20 injected process9 dnsIp10 35 www.venuebgcapartner.com 81.17.18.196, 49779, 80 PLI-ASCH Switzerland 20->35 45 System process connects to network (likely due to code injection or exploit) 20->45 24 help.exe 20->24         started        signatures11 process12 signatures13 47 Self deletion via cmd delete 24->47 49 Modifies the context of a thread in another process (thread injection) 24->49 51 Maps a DLL or memory area into another process 24->51 53 Tries to detect virtualization through RDTSC time measurements 24->53 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8c2c738ee2230ec142259f31fc60cd23ce3bac65dec24427437ec79250fa3653/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-02-14 07:17:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
19 of 27 (70.37%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
87cca4e4ba65094241bbb379ca3677932f6e399ece811334a07a72ff5b3073f8
Formbook
a94cf69dea9775df9f51f32d9591f7208ac9c712289a1b851c30de3938b5a976
Formbook
d5f77ba2b2ad58cfad5ae3111994ad0f889967e6d4f67ecb9cedf1b8f10a6149
Formbook
db4fa159359fbe0ba9857ae0e971dd206f23a7522b14073151b27bb030db8f5f
Formbook
dee29915a45463d25c7f4de2abac14269137c359f848baf8ad4205fb07e2fa0b
Formbook
e08593ebcd4ac9265c1f27d987a67f43b2c8a9e9c680e9d47901281a4c5878dd
Formbook
f556af7cd24cc02eba24924d19c42966a1a98b84dfabd78c523c55f492d54acd
Formbook
+ 12'999 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ot22 rat spyware stealer trojan
Link:
https://tria.ge/reports/220214-h4dhssgcc4/
Behaviour
Checks processor information in registry
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Unpacked files
SH256 hash:
3b5277be9cf87decc4932da80e6d1b98f1e2c988a6338ed08f9b39cfa4016ab8
MD5 hash:
58b8d6bafa1e9cfa34b46fa68cfd0d50
SHA1 hash:
6f7b1ca5b70bc8ac83a82e3bd582fe68980ba913
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/bb6c139b-b528-4bad-b9bf-27c4b7e5a5c8/
Parent samples :
22633ca2e23a6d2353a4a2a4f87b02548fc9c9e92b4e482df9bae8e93c17b793
114505961db31e8df89e72793bdab23348cfde742a30cfd7171047a61d23af84
d5f77ba2b2ad58cfad5ae3111994ad0f889967e6d4f67ecb9cedf1b8f10a6149
8c2c738ee2230ec142259f31fc60cd23ce3bac65dec24427437ec79250fa3653
SH256 hash:
a820cce558daab3b269c54174c16fd1f4e1cb517b5a338ee67eb36b835ef42a0
MD5 hash:
b646c4a6e290be619132786ea84d3e06
SHA1 hash:
e9ae167de0f8b7be6417433bfc01eadf82c09ea8
Link:
https://www.unpac.me/results/bb6c139b-b528-4bad-b9bf-27c4b7e5a5c8/
SH256 hash:
4ad95880f3d1fe5d5bd537bff36392c30bfc299d4afd71332609adb25ecf2d1b
MD5 hash:
173f55319cf3798dc952b2b0a0870a32
SHA1 hash:
d4ca9b15019b5c9cff13187b5c241c83bf861708
Link:
https://www.unpac.me/results/bb6c139b-b528-4bad-b9bf-27c4b7e5a5c8/
SH256 hash:
3ca74eb4ce4c2c5604dc298949ae47996d93063abfde0682d689205561d17d44
MD5 hash:
4e35b541f3d9162d0ac93d336df67779
SHA1 hash:
bb9e65761186806d4bada659e9d5db0c070501d4
Link:
https://www.unpac.me/results/bb6c139b-b528-4bad-b9bf-27c4b7e5a5c8/
SH256 hash:
1fbc3e059890553fd15cc04e87278fdac4571292afc4023870c8cd437ef64da0
MD5 hash:
efa5b708e2b7715b0b621f24d08ae9af
SHA1 hash:
9091078486a337a0126de57685707f35685c6b7c
Link:
https://www.unpac.me/results/bb6c139b-b528-4bad-b9bf-27c4b7e5a5c8/
SH256 hash:
8c2c738ee2230ec142259f31fc60cd23ce3bac65dec24427437ec79250fa3653
MD5 hash:
6263deb8f5d3b2fa51ee952ec83866cc
SHA1 hash:
c3229136845186b926c1c047ad943a3dadb67402
Link:
https://www.unpac.me/results/bb6c139b-b528-4bad-b9bf-27c4b7e5a5c8/
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/8c2c738ee2230ec142259f31fc60cd23ce3bac65dec24427437ec79250fa3653

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

File information

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

Web download

Formbook

Executable exe 8c2c738ee2230ec142259f31fc60cd23ce3bac65dec24427437ec79250fa3653

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1907407/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/241293/

Comments