MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b253502d8bce85fda32fc5264bb7736c3280149b529fffc2e77f2c66257b0696. 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 17 File information Comments
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SHA256 hash: b253502d8bce85fda32fc5264bb7736c3280149b529fffc2e77f2c66257b0696
SHA3-384 hash: b97144e38987c9ea9d903adceead802e057b55f389725ef684c9d28d93806647254962def5d84f758406003e6b88d303
SHA1 hash: 9ad85e2221b312a7204ca0dd9c6a0970a695508f
MD5 hash: e2c27799f6cadebcc100c42409bbd869
humanhash: october-mirror-sodium-burger
File name:PI-INV-0459384.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:392'164 bytes
First seen:2023-10-30 08:34:30 UTC
Last seen:2023-10-30 09:56:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 6144:F8LxBsMv1pCyr1tvpKKR+U3Vn5W3OvP2mTBsMBUWb7PFImeYnK3bSSEGvGL690aN:/s3CqBKK53N5WLmTBnPl5nGObvLs7
TLSH T11C84236953C34AB3C05A683042769FB9FBBBD7040336578377189F2B2C518E60B6F689
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter cocaman
Tags:exe FormBook INVOICE

Intelligence

File Origin
# of uploads :
3
# of downloads :
356
Origin country :
CH CH
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/457061/
Detection(s):
SecuriteInfo.com.Variant.Jaik.195228.25428.15201.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Сreating synchronization primitives
Launching a process
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control installer lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/653f6ab84ebf05ac3f3e464e/reports/682b8b82-1fc2-47aa-8f5c-b38a7b380ac8/overview
Verdict:
Malicious
Labled as:
Jaik.Generic
Link:
https://www.hybrid-analysis.com/sample/b253502d8bce85fda32fc5264bb7736c3280149b529fffc2e77f2c66257b0696
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/17b615af-3cb5-42a3-a52b-73c896eca027
Result
Threat name:
FormBook, NSISDropper
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1334110
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses powercfg.exe to modify the power settings
Writes to foreign memory regions
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1334110 Sample: PI-INV-0459384.exe Startdate: 30/10/2023 Architecture: WINDOWS Score: 100 30 www.wshein.online 2->30 32 www.tecverse.xyz 2->32 34 15 other IPs or domains 2->34 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus detection for URL or domain 2->46 48 Antivirus / Scanner detection for submitted sample 2->48 50 6 other signatures 2->50 11 PI-INV-0459384.exe 17 2->11         started        signatures3 process4 file5 28 C:\Users\user\AppData\Local\...\opufwwqvj.exe, PE32 11->28 dropped 14 opufwwqvj.exe 11->14         started        process6 signatures7 60 Antivirus detection for dropped file 14->60 62 Multi AV Scanner detection for dropped file 14->62 64 Detected unpacking (changes PE section rights) 14->64 66 2 other signatures 14->66 17 opufwwqvj.exe 14->17         started        process8 signatures9 42 Maps a DLL or memory area into another process 17->42 20 eRPaCeOYpbURuOKosIl.exe 17->20 injected process10 dnsIp11 36 www.tecverse.xyz 203.161.61.170, 49760, 49761, 49762 VNPT-AS-VNVNPTCorpVN Malaysia 20->36 38 www.bukculture.com 91.206.200.88, 49748, 49749, 49750 UKRAINE-ASUA Ukraine 20->38 40 10 other IPs or domains 20->40 23 powercfg.exe 13 20->23         started        process12 signatures13 52 Tries to steal Mail credentials (via file / registry access) 23->52 54 Tries to harvest and steal browser information (history, passwords, etc) 23->54 56 Writes to foreign memory regions 23->56 58 2 other signatures 23->58 26 firefox.exe 23->26         started        process14
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b253502d8bce85fda32fc5264bb7736c3280149b529fffc2e77f2c66257b0696
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b253502d8bce85fda32fc5264bb7736c3280149b529fffc2e77f2c66257b0696/
Threat name:
Win32.Trojan.Generic
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Status:
Malicious
First seen:
2023-10-30 00:02:46 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
18 of 23 (78.26%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wjjvalmlz2c73izpyutexn3tnqziafe3kkp77qxhp4wgmjl3a2la._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/231030-kg1e6adf85/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Unpacked files
SH256 hash:
b253502d8bce85fda32fc5264bb7736c3280149b529fffc2e77f2c66257b0696
MD5 hash:
e2c27799f6cadebcc100c42409bbd869
SHA1 hash:
9ad85e2221b312a7204ca0dd9c6a0970a695508f
Link:
https://www.unpac.me/results/4f23251e-b9eb-4923-9f07-11aea95e03b7/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b253502d8bce/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

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

Malspam

Formbook

arj 04b2a4620edf4bbb317ecd373cd29fcc663514dd0c5b2115e39994ed5be91d1e

Formbook

Executable exe b253502d8bce85fda32fc5264bb7736c3280149b529fffc2e77f2c66257b0696

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 04b2a4620edf4bbb317ecd373cd29fcc663514dd0c5b2115e39994ed5be91d1e
Cape
Cape
https://www.capesandbox.com/analysis/457061/
  
Dropped by
MD5 676a8bfecb53e8b2c8300b978bc7fce3

Comments