MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0ffb85454f582cc85ee5b77282c62c16c3f845706a850fb2b096ce287494073f. 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: 14


Intelligence 14 IOCs YARA 25 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0ffb85454f582cc85ee5b77282c62c16c3f845706a850fb2b096ce287494073f
SHA3-384 hash: 689056c79c8880cad0d89de8b58033d56a997dfa7c92cdd6d33cb8ff25a64a6ce562197bdca8a18b8de77529049f14d3
SHA1 hash: 2eba3545d3da64b1dc906373e542cfe2abd456f2
MD5 hash: 5e0360cda226b51b2ecd311012501c54
humanhash: sink-ack-helium-blue
File name:mKv3sKQ5Q4E7waF.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:795'648 bytes
First seen:2025-03-17 07:46:36 UTC
Last seen:2025-03-17 08:16:31 UTC
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:bQ6vPJyM3BlSpLkYxRhguwXQIrZt+ecmiBAqmRpCqP3pPv8JU0DvmrxbPx7nhp:jvPJyM3BApbHwzZt+ecdH25P5ZEmrjn
Threatray 1 similar samples on MalwareBazaar
TLSH T10205018872B8CF16EDB907F44930E23447B62DA9E921D30A4DC5BCEF3561B806B59793
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
489
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
mKv3sKQ5Q4E7waF.exe
Verdict:
No threats detected
Analysis date:
2025-03-17 07:46:45 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/0419c02a-3063-4ac4-8c7b-147cc3166b80

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67d7e97d08116ce42571b660
Tags:
shell virus micro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Adding an exclusion to Microsoft Defender
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/67d7d37cdab9a7b6c5953873/reports/7f3ed5f0-9b55-419f-b995-50bb1af380d8/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/0ffb85454f582cc85ee5b77282c62c16c3f845706a850fb2b096ce287494073f
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/67ed973d-b66f-44ee-b4a3-5dd9e6164ee7
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1640362
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
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 submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1640362 Sample: mKv3sKQ5Q4E7waF.exe Startdate: 17/03/2025 Architecture: WINDOWS Score: 100 46 www.quantumxr.xyz 2->46 48 www.lingkungan.xyz 2->48 50 17 other IPs or domains 2->50 60 Antivirus detection for URL or domain 2->60 62 Multi AV Scanner detection for submitted file 2->62 64 Yara detected FormBook 2->64 68 4 other signatures 2->68 10 mKv3sKQ5Q4E7waF.exe 4 2->10         started        14 svchost.exe 1 1 2->14         started        signatures3 66 Performs DNS queries to domains with low reputation 48->66 process4 dnsIp5 38 C:\Users\user\...\mKv3sKQ5Q4E7waF.exe.log, ASCII 10->38 dropped 72 Adds a directory exclusion to Windows Defender 10->72 74 Injects a PE file into a foreign processes 10->74 17 mKv3sKQ5Q4E7waF.exe 10->17         started        20 powershell.exe 23 10->20         started        52 127.0.0.1 unknown unknown 14->52 file6 signatures7 process8 signatures9 54 Maps a DLL or memory area into another process 17->54 22 vnV7v1GankdEyS2eDT.exe 17->22 injected 56 Loading BitLocker PowerShell Module 20->56 25 WmiPrvSE.exe 20->25         started        27 conhost.exe 20->27         started        process10 signatures11 70 Found direct / indirect Syscall (likely to bypass EDR) 22->70 29 help.exe 13 22->29         started        process12 signatures13 76 Tries to steal Mail credentials (via file / registry access) 29->76 78 Tries to harvest and steal browser information (history, passwords, etc) 29->78 80 Modifies the context of a thread in another process (thread injection) 29->80 82 3 other signatures 29->82 32 vnV7v1GankdEyS2eDT.exe 29->32 injected 36 firefox.exe 29->36         started        process14 dnsIp15 40 www.lingkungan.xyz 13.248.169.48, 52864, 52865, 52866 AMAZON-02US United States 32->40 42 www.klass.team 77.222.42.122, 52914, 52915, 52916 SWEB-ASRU Russian Federation 32->42 44 11 other IPs or domains 32->44 58 Found direct / indirect Syscall (likely to bypass EDR) 32->58 signatures16
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/0ffb85454f582cc85ee5b77282c62c16c3f845706a850fb2b096ce287494073f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0ffb85454f582cc85ee5b77282c62c16c3f845706a850fb2b096ce287494073f/
Threat name:
ByteCode-MSIL.Trojan.Snakekeylogger
Create hunting rule
Status:
Malicious
First seen:
2025-03-17 07:36:58 UTC
File Type:
PE (.Net Exe)
Extracted files:
21
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=b75ykrkplawmqxxfw5zifrrmc3b7qrlqnkcq7mvqs3hcq5eua47q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
unc_loader_037
Create hunting rule
Similar samples:
0ffb85454f582cc85ee5b77282c62c16c3f845706a850fb2b096ce287494073f
Formbook
error
Formbook
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
Link:
https://tria.ge/reports/250317-jmkq8axnv8/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/8c49c3e7-9c51-4d3d-904a-f51f8139e2e1
Unpacked files
SH256 hash:
0ffb85454f582cc85ee5b77282c62c16c3f845706a850fb2b096ce287494073f
MD5 hash:
5e0360cda226b51b2ecd311012501c54
SHA1 hash:
2eba3545d3da64b1dc906373e542cfe2abd456f2
Link:
https://www.unpac.me/results/cb7fc6c8-1b25-467e-8bab-dd17c3070072/
SH256 hash:
f60a24b92fae48f6a753e23756e81bc20d4e9ab0ef8ca2c4c1719e5b521bcfe6
MD5 hash:
7b42e6fe0c33a4479d04426e14ce41c5
SHA1 hash:
0ef906c70ecfd6b3b50fa9d7e4824a6bfc12de22
Link:
https://www.unpac.me/results/cb7fc6c8-1b25-467e-8bab-dd17c3070072/
SH256 hash:
f2a7fae9ce4f7589d654288a312d652af993b04ca98eeb4a8cf4d6b9c4681db7
MD5 hash:
1d31d06a7d7cf043aeaf67fc1b28c7c7
SHA1 hash:
81fe0d40d2c54e1f2a03fcc3bea0f17f57cc9938
Link:
https://www.unpac.me/results/cb7fc6c8-1b25-467e-8bab-dd17c3070072/
SH256 hash:
1cfb479e387640a7b75e92a92e2bf00516bb33f158e771c6969b20dcd4493b8a
MD5 hash:
1a7c67c37d7ee5d547d912c91e13edab
SHA1 hash:
a4b8298b891c79ebf6e3e95f18e5786b65006a5d
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/cb7fc6c8-1b25-467e-8bab-dd17c3070072/
SH256 hash:
1331db8d59fb354fd486e664ed7ef5ffc6a1cd93be62c1b27ae3021475516cd1
MD5 hash:
9d3471977f8a3245e5394fcb99f230ee
SHA1 hash:
521e91c8a6c9b1df8f03f6bd02ea8bf2f8aa415a
Link:
https://www.unpac.me/results/cb7fc6c8-1b25-467e-8bab-dd17c3070072/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0ffb85454f58/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/0ffb85454f582cc85ee5b77282c62c16c3f845706a850fb2b096ce287494073f

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
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:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Malspam

Formbook

Executable exe 0ffb85454f582cc85ee5b77282c62c16c3f845706a850fb2b096ce287494073f

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments