MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6d5aba91499c078d24d86e443d84dd17530fa6ff8535b4d866d26a8578a2ddca. 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: 19


Intelligence 19 IOCs YARA 16 File information Comments
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SHA256 hash: 6d5aba91499c078d24d86e443d84dd17530fa6ff8535b4d866d26a8578a2ddca
SHA3-384 hash: 5f5b0d54a3198ff179ad11a60ca76f861f9a91d156993664468508ef612549dfe9254963970cf45de8db376dbf8d1cf7
SHA1 hash: 326d55f559628cdbe286588dbed1d4772a6b236d
MD5 hash: 68a8e62954bb51c4516d8a80abcc1fa2
humanhash: fifteen-orange-tango-music
File name:6d5aba91499c078d24d86e443d84dd17530fa6ff8535b4d866d26a8578a2ddca
Download: download sample
Signature Formbook
Create hunting rule
File size:824'832 bytes
First seen:2025-03-10 11:32:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'603 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:MNLsv6YeXY/e1ennQfAmO41GHbzGL41HtA9bzEAgHqgLzHAxcw3MK:c8YAJ41oy09tABz3gKgL0xr
Threatray 4'855 similar samples on MalwareBazaar
TLSH T11C05CF051398CA0AD13B27B81DB4C1714BB97E6EF962D31A4ED4ACEB7EB67008D16347
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
300
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
6d5aba91499c078d24d86e443d84dd17530fa6ff8535b4d866d26a8578a2ddca
Verdict:
Malicious activity
Analysis date:
2025-03-10 14:14:10 UTC
Tags:
formbook stealer xloader
Link:
https://app.any.run/tasks/e8654e8e-4971-478f-afba-7ba3fda5ded2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67ced6f81f777fe306089722
Tags:
virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
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 with a hidden window
Creating a file in the %temp% directory
Launching a process
Creating a file
Launching cmd.exe command interpreter
Setting browser functions hooks
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/67cece033c5f644bd94b1abd/reports/caa8dfa6-676b-4357-9e49-f62b77ef00e7/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/6d5aba91499c078d24d86e443d84dd17530fa6ff8535b4d866d26a8578a2ddca
Result
Verdict:
UNKNOWN
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5ff2ffaa-7049-4b0c-9449-dc47871c1527
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1634817
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1634817 Sample: IkFozP4Gsw.exe Startdate: 11/03/2025 Architecture: WINDOWS Score: 100 65 www.utocreditosfacil.today 2->65 67 www.stanbulescortgaze.pro 2->67 69 2 other IPs or domains 2->69 73 Found malware configuration 2->73 75 Malicious sample detected (through community Yara rule) 2->75 77 Antivirus detection for URL or domain 2->77 79 10 other signatures 2->79 11 IkFozP4Gsw.exe 7 2->11         started        15 fGDbsLSJ.exe 5 2->15         started        17 svchost.exe 2->17         started        signatures3 process4 dnsIp5 55 C:\Users\user\AppData\Roaming\fGDbsLSJ.exe, PE32 11->55 dropped 57 C:\Users\...\fGDbsLSJ.exe:Zone.Identifier, ASCII 11->57 dropped 59 C:\Users\user\AppData\Local\Temp\tmp7D.tmp, XML 11->59 dropped 61 C:\Users\user\AppData\...\IkFozP4Gsw.exe.log, ASCII 11->61 dropped 101 Uses schtasks.exe or at.exe to add and modify task schedules 11->101 103 Writes to foreign memory regions 11->103 105 Allocates memory in foreign processes 11->105 107 Adds a directory exclusion to Windows Defender 11->107 20 RegSvcs.exe 11->20         started        23 powershell.exe 23 11->23         started        25 schtasks.exe 1 11->25         started        109 Antivirus detection for dropped file 15->109 111 Multi AV Scanner detection for dropped file 15->111 113 Injects a PE file into a foreign processes 15->113 27 RegSvcs.exe 15->27         started        29 schtasks.exe 1 15->29         started        63 127.0.0.1 unknown unknown 17->63 file6 signatures7 process8 signatures9 81 Modifies the context of a thread in another process (thread injection) 20->81 83 Maps a DLL or memory area into another process 20->83 85 Sample uses process hollowing technique 20->85 91 2 other signatures 20->91 31 explorer.exe 32 1 20->31 injected 87 Loading BitLocker PowerShell Module 23->87 34 WmiPrvSE.exe 23->34         started        36 conhost.exe 23->36         started        38 conhost.exe 25->38         started        89 Found direct / indirect Syscall (likely to bypass EDR) 27->89 40 conhost.exe 29->40         started        process10 dnsIp11 71 204.79.197.203, 443 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 31->71 42 mstsc.exe 31->42         started        45 WWAHost.exe 31->45         started        47 autoconv.exe 31->47         started        49 autoconv.exe 31->49         started        process12 signatures13 93 Modifies the context of a thread in another process (thread injection) 42->93 95 Maps a DLL or memory area into another process 42->95 97 Tries to detect virtualization through RDTSC time measurements 42->97 99 Switches to a custom stack to bypass stack traces 42->99 51 cmd.exe 42->51         started        process14 process15 53 conhost.exe 51->53         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/6d5aba91499c078d24d86e443d84dd17530fa6ff8535b4d866d26a8578a2ddca
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6d5aba91499c078d24d86e443d84dd17530fa6ff8535b4d866d26a8578a2ddca/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-02-24 12:30:38 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
29 of 38 (76.32%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nvnlvekjtqdy2jgynzcd3bg5c5jq7jx7qu23jwdg2jvik6fc3xfa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
unc_loader_037
Create hunting rule
Similar samples:
18cc402054f5c3b2abe9fc659dae16c9757312a9c9d7f4b614909b6bd97ff39f
Formbook
36e9bfc5337aa8a4dd2c8c24087a3cdc3f589df01ec12c0d81a28eb62b67b9e4
Formbook
93aeb18c52bece32042f39cbce6994036ac8556043fdc335bb3fc1453ce8d74f
Formbook
a2780a43ac1e90a6945c78cbcbd929863ab89c72ff1f86380f48303d051bc7d4
Formbook
e640afdf9c7df0c233c559cb4ec688a7ea57d0b0803868229704bf5b5ed4bec5
Formbook
error
Formbook
f73f985bf2f74cc1006a5e911bbd7940073809b01da2823a6bb1db85288c0926
Formbook
+ 4'845 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:k15k discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/250310-nn1ahss1dw/
Behaviour
Modifies registry class
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
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
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e00d0969-fe2a-4623-b2c9-1525def3f191
Unpacked files
SH256 hash:
6d5aba91499c078d24d86e443d84dd17530fa6ff8535b4d866d26a8578a2ddca
MD5 hash:
68a8e62954bb51c4516d8a80abcc1fa2
SHA1 hash:
326d55f559628cdbe286588dbed1d4772a6b236d
Link:
https://www.unpac.me/results/9330d4c7-e062-42b3-8f04-c173d99afd11/
SH256 hash:
e80a463e16b14b43e4112cb8f0cb0cf44ff245be592202042373a02b9ea4deb9
MD5 hash:
bbea1aafd0d7058f6f46c8ceff355f96
SHA1 hash:
14ca07073c0a943129823d6532358a55761a203f
Link:
https://www.unpac.me/results/9330d4c7-e062-42b3-8f04-c173d99afd11/
SH256 hash:
0a4738ee2db41384d9607e944381a2278ea1c71ce13d033f87c5274f539aae03
MD5 hash:
6fb26b282e0a23b3c267b8ac8daac5a3
SHA1 hash:
8d45db68299b4bafeac4ef5d99aef294d07445ac
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/9330d4c7-e062-42b3-8f04-c173d99afd11/
SH256 hash:
5c6edee104ce0b755ef4bd8adabe909ff4777d437d27e52312a79e9d955617e9
MD5 hash:
1ee9ab6f7d522dcb0650c0c89c103446
SHA1 hash:
c8da1198b7c90bb84e0923943697a8482108bf16
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/9330d4c7-e062-42b3-8f04-c173d99afd11/
Parent samples :
18cc402054f5c3b2abe9fc659dae16c9757312a9c9d7f4b614909b6bd97ff39f
6d5aba91499c078d24d86e443d84dd17530fa6ff8535b4d866d26a8578a2ddca
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6d5aba91499c/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/6d5aba91499c078d24d86e443d84dd17530fa6ff8535b4d866d26a8578a2ddca

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: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: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: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.

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
CHECK_TRUST_INFORequires Elevated Execution (Unrestricted:true)high

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