MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6a341d2ac8e12920f79ed4a9b7a509bca52d2eeba0e29d801a37afac4687333e. 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 18 File information Comments
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SHA256 hash: 6a341d2ac8e12920f79ed4a9b7a509bca52d2eeba0e29d801a37afac4687333e
SHA3-384 hash: b58378487abb051bf37cc89467fff5ffd6a571cf7953566c34f4743fb6eb1cdcb7705f2add619ecf56534fcb06a5704c
SHA1 hash: f47cde02c555b5ef030809a393c12fe40a553fa8
MD5 hash: d43df7e839cc4c72dfd887ab416f07a4
humanhash: floor-princess-batman-twelve
File name:CU.ps1
Download: download sample
Signature Formbook
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File size:1'376'005 bytes
First seen:2026-01-15 08:34:52 UTC
Last seen:Never
File type:PowerShell (PS) ps1
MIME type:text/plain
ssdeep 24576:zB3fcWdZ6q6FHZDPW86bO5bL1x0G+p+UMRy0N7MILzYyQJKcJfQaTsDtj:lPdmHl04R9GKcZwDtj
Threatray 2'505 similar samples on MalwareBazaar
TLSH T1375523126F13BAFD4A2CC37568EF6F9457511A24C484CBCB7EE890D62B6DB028663C74
Magika powershell
Reporter abuse_ch
Tags:FormBook ps1

Intelligence

File Origin
# of uploads :
1
# of downloads :
41
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.Other.Malware-gen.31876726.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6968a701ef906a21abcd6cde
Tags:
ransomware virus shell
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
aspnet_compiler base64 base64 evasive lolbin obfuscated powershell reconnaissance
Link:
https://www.filescan.io/uploads/6968a6e83827c9e1249f5432/reports/d45fc094-74bd-48b0-989d-34829b4e5340/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/6a341d2ac8e12920f79ed4a9b7a509bca52d2eeba0e29d801a37afac4687333e
Verdict:
Malicious
File Type:
ps1
First seen:
2026-01-13T16:43:00Z UTC
Last seen:
2026-01-15T12:48:00Z UTC
Hits:
~10
Detections:
Trojan-Spy.Win32.Noon.sb Trojan.Win32.InjectorNetT.s Trojan.Win32.Agent.sb PDM:Trojan.Win32.Generic
Link:
https://opentip.kaspersky.com/6a341d2ac8e12920f79ed4a9b7a509bca52d2eeba0e29d801a37afac4687333e/results?tab=lookup
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1851175
Signature
.NET source code contains potential unpacker
AI detected malicious Powershell script
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
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 submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Suricata IDS alerts for network traffic
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)
Unusual module load detection (module proxying)
Writes to foreign memory regions
Yara detected FormBook
Yara detected Powershell decode and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1851175 Sample: CU.ps1 Startdate: 15/01/2026 Architecture: WINDOWS Score: 100 40 www.crmportalmail.xyz 2->40 42 www.54819757.xyz 2->42 44 9 other IPs or domains 2->44 58 Suricata IDS alerts for network traffic 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 Multi AV Scanner detection for submitted file 2->62 66 6 other signatures 2->66 11 powershell.exe 22 2->11         started        14 svchost.exe 1 1 2->14         started        signatures3 64 Performs DNS queries to domains with low reputation 42->64 process4 dnsIp5 68 Writes to foreign memory regions 11->68 70 Sample uses process hollowing technique 11->70 72 Injects a PE file into a foreign processes 11->72 17 aspnet_compiler.exe 11->17         started        20 aspnet_compiler.exe 11->20         started        22 conhost.exe 11->22         started        24 23 other processes 11->24 46 127.0.0.1 unknown unknown 14->46 signatures6 process7 signatures8 54 Maps a DLL or memory area into another process 17->54 26 TEqJd4Xw.exe 17->26 injected 56 Unusual module load detection (module proxying) 20->56 process9 process10 28 unregmp2.exe 13 26->28         started        signatures11 74 Tries to steal Mail credentials (via file / registry access) 28->74 76 Tries to harvest and steal browser information (history, passwords, etc) 28->76 78 Modifies the context of a thread in another process (thread injection) 28->78 80 4 other signatures 28->80 31 eSRRBmE6z.exe 28->31 injected 34 chrome.exe 28->34         started        36 firefox.exe 28->36         started        process12 dnsIp13 48 www.olita.site 203.161.48.133, 49736, 49737, 49738 VNPT-AS-VNVNPTCorpVN Malaysia 31->48 50 lottored-plus.com 140.99.245.70, 49724, 49725, 49726 REMOTE-SUB-SERVICES-01US United States 31->50 52 7 other IPs or domains 31->52 38 WerFault.exe 4 34->38         started        process14
Score:
98%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/6a341d2ac8e12920f79ed4a9b7a509bca52d2eeba0e29d801a37afac4687333e
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6a341d2ac8e12920f79ed4a9b7a509bca52d2eeba0e29d801a37afac4687333e/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/6a341d2ac8e12920f79ed4a9b7a509bca52d2eeba0e29d801a37afac4687333e
Threat name:
Script-PowerShell.Trojan.Heuristic
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Status:
Malicious
First seen:
2026-01-13 20:59:09 UTC
File Type:
Text (PowerShell)
AV detection:
10 of 36 (27.78%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ni2b2kwi4eusb5462su3pjijxsss2lxludrj3aa2g6x2yruhgm7a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
18f5cac951415dfc29a7c41a77cd8878674035561d0425dfbefd8939ea368f0d
Formbook
2d69b310e05770207e0dfbc31f64586a5edefe9fa24ec1c66bada9d50a2f5d05
Formbook
3a279099e6b83675a0f1b4ad779734a1c718d6b19a9ab225c54be70c78108ab5
Formbook
5aa4328001eb57a54a716ba3c7f0fa7f6b8c390828ea8b33a3c85dfb2838a512
Formbook
85ad935b3f04ac7a537e4cf51894c03ed4764343f3b0d8c56657d9137d8e451e
Formbook
b26c70dbbd9018430b9fd3c363cbd318a388516115e9048aaa0208c4f1472bc7
Formbook
df7ae8cbf85a38ceab3551bf0f806fb3b6b62a2664d029c465309ffccf9f6d69
Formbook
e07e7df88008f8d1ba3b459a3e8907c78c7a22cadfcb2ab439ffda155d3e2fc0
Formbook
error
Formbook
+ 2'495 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook adware discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/260115-khdb1shv4g/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: PowerShell
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Badlisted process makes network request
Formbook payload
Formbook
Formbook family
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/6a341d2ac8e12920f79ed4a9b7a509bca52d2eeba0e29d801a37afac4687333e

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:CP_Script_Inject_Detector
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Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__GlobalFlags
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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:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:detect_powershell
Create hunting rule
Author:daniyyell
Description:Detects suspicious PowerShell activity related to malware execution
Rule name:dgaagas
Create hunting rule
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
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:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RANSOMWARE
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Author:ToroGuitar
Rule name:RIPEMD160_Constants
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Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
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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:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:TH_Win_ETW_Bypass_2025_CYFARE
Create hunting rule
Author:CYFARE
Description:Windows ETW Bypass Detection Rule - 2025
Reference:https://cyfare.net/

File information

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

Web download

Formbook

PowerShell (PS) ps1 6a341d2ac8e12920f79ed4a9b7a509bca52d2eeba0e29d801a37afac4687333e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3758274/
  
Delivery method
Distributed via web download

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