MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6043c59b851684edcaac6b0586f079cde35cacfc717a0c5b25dec5ae0f568764. 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 2 File information Comments 1
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SHA256 hash: 6043c59b851684edcaac6b0586f079cde35cacfc717a0c5b25dec5ae0f568764
SHA3-384 hash: 1f800899669bcb9997677cc75f8a4760fefd1b91dd9de3f501592c5c05148bcd0dd16377f2241e4b283e5c7a54360701
SHA1 hash: 46d572488d3ec7c39e486a0ec08f4c9294d10d8f
MD5 hash: a72df6e81f3acfda4fe69a144d805fe6
humanhash: may-skylark-princess-colorado
File name:a72df6e81f3acfda4fe69a144d805fe6
Download: download sample
Signature Formbook
Create hunting rule
File size:702'464 bytes
First seen:2022-06-29 16:43:38 UTC
Last seen:2022-07-14 06:29:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:KjX2GrPAzX9dScqWjsZ5uEd2iN+cStXdqMjIFOB1Zaf2eYx0Nu3UizHq:NtdSc/W5X1P6d8Fi1gf2e7834
TLSH T11EE4F021B7E85F06D5FA17B4C2A851310BB7B4166523E319CDC135EA2DB2B81CD1BB2B
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
229
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/284333/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Using the Windows Management Instrumentation requests
Reading critical registry keys
Forced shutdown of a system process
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62bc8156a17f249ae3e66121/reports/45f5e4c8-0bcb-4bb9-8f03-f0f77fe6499b/overview
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/09c6623d-494e-4eb3-bea7-564c05daaf0d
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1022040
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
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)
Multi AV Scanner detection for domain / URL
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 654542 Sample: S2ZLEuq7O2 Startdate: 29/06/2022 Architecture: WINDOWS Score: 100 42 Multi AV Scanner detection for domain / URL 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus detection for URL or domain 2->46 48 8 other signatures 2->48 10 S2ZLEuq7O2.exe 7 2->10         started        process3 file4 36 C:\Users\user\AppData\...\jpvPmcvGYH.exe, PE32 10->36 dropped 38 C:\Users\user\AppData\Local\...\tmp21CD.tmp, XML 10->38 dropped 40 C:\Users\user\AppData\...\S2ZLEuq7O2.exe.log, ASCII 10->40 dropped 50 Uses schtasks.exe or at.exe to add and modify task schedules 10->50 52 Adds a directory exclusion to Windows Defender 10->52 14 RegSvcs.exe 10->14         started        17 powershell.exe 25 10->17         started        19 schtasks.exe 1 10->19         started        signatures5 process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 2 other signatures 14->66 21 explorer.exe 14->21 injected 23 conhost.exe 17->23         started        25 conhost.exe 19->25         started        process8 process9 27 colorcpl.exe 21->27         started        signatures10 54 Modifies the context of a thread in another process (thread injection) 27->54 56 Maps a DLL or memory area into another process 27->56 58 Tries to detect virtualization through RDTSC time measurements 27->58 30 cmd.exe 1 27->30         started        32 explorer.exe 127 27->32         started        process11 process12 34 conhost.exe 30->34         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6043c59b851684edcaac6b0586f079cde35cacfc717a0c5b25dec5ae0f568764/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-06-29 16:44:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
23 of 39 (58.97%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mbb4lg4fc2co3svmnmcyn4dzzxrvzlh4of5aywzf33c24d2wq5sa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:rx29 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220629-t8sztsbbfk/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
9c56af5cbade13e747e61b5a7994d6d0e488c401f4986074509640fa4df607a5
MD5 hash:
acae5c96cec5f1b18fb34b9e370b3a10
SHA1 hash:
19df423a0681e28a8e6859aa8b241d9ece411ef7
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Link:
https://www.unpac.me/results/5472792c-f1b7-40df-953b-0145eef84355/
Parent samples :
39da5fd546b1ef1e8b72e56a95ac89f0e6bded69816ab72b96dd54c5e2c12517
28c758c9863ef77da34aa104fbb05b0b82547817efe4dbda0349891237dea3d0
6043c59b851684edcaac6b0586f079cde35cacfc717a0c5b25dec5ae0f568764
SH256 hash:
5723367d7cd48b98eb468740ee30085b10bfa3d6a9774e36936e6026aa58af05
MD5 hash:
ccb0686ddfcd782f6adaab81f29a9348
SHA1 hash:
fb2138780442d54c9b367ae901c7150c1d21f087
Link:
https://www.unpac.me/results/5472792c-f1b7-40df-953b-0145eef84355/
SH256 hash:
0cb6aef1fa57d11408e47ae071485ef8f48c2982997b8d74b47a4151d85b978c
MD5 hash:
843aa6edf83bff7b61c6a5369ef41e95
SHA1 hash:
d1bfeec8eaac9a1dacf2f7062ce964d8e7d77085
Link:
https://www.unpac.me/results/5472792c-f1b7-40df-953b-0145eef84355/
SH256 hash:
cf4c5d096e32b0724d0e9235f8268e0c4cf1d1029ef1e3d34cdb1a6c66e97337
MD5 hash:
334aed4d30b786487dfd5cd2ed44e145
SHA1 hash:
4fc2aedbd2c125d99abc5fb25efe69698c9a9b71
Link:
https://www.unpac.me/results/5472792c-f1b7-40df-953b-0145eef84355/
SH256 hash:
c350239bff3d99461c6082c5862ff42d765d9b54167c9966465f1b6459416bc9
MD5 hash:
83e0679948e0e4515d39d39f45a56ae5
SHA1 hash:
03a91dbd620170dd20c1d544bc3b7c7aefd73390
Link:
https://www.unpac.me/results/5472792c-f1b7-40df-953b-0145eef84355/
SH256 hash:
6043c59b851684edcaac6b0586f079cde35cacfc717a0c5b25dec5ae0f568764
MD5 hash:
a72df6e81f3acfda4fe69a144d805fe6
SHA1 hash:
46d572488d3ec7c39e486a0ec08f4c9294d10d8f
Link:
https://www.unpac.me/results/5472792c-f1b7-40df-953b-0145eef84355/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6043c59b8516/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/6043c59b851684edcaac6b0586f079cde35cacfc717a0c5b25dec5ae0f568764

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 6043c59b851684edcaac6b0586f079cde35cacfc717a0c5b25dec5ae0f568764

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2252488/
Cape
Cape
https://www.capesandbox.com/analysis/284333/

Comments


Avatar
zbet commented on 2022-06-29 16:43:43 UTC

url : hxxp://104.168.33.66/am/gin.exe