MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0a86c64e79af15ff094baad609d9651eb51e382c817498d44b2df82005fd3f1c. 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: 12


Intelligence 12 IOCs YARA 25 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0a86c64e79af15ff094baad609d9651eb51e382c817498d44b2df82005fd3f1c
SHA3-384 hash: 23b21618620a4203a79b96a389be240473db036103d53a56c1addbfb2ceaa7f677939e219c48b3051c28e3122c17e337
SHA1 hash: 708c0fbe63dd5f133ed5e1feccc0574eff33a6ac
MD5 hash: 37d4d53b7fa928f4a3f000002ce9f734
humanhash: east-muppet-apart-ink
File name:0a86c64e79af15ff094baad609d9651eb51e382c817498d44b2df82005fd3f1c
Download: download sample
Signature Formbook
Create hunting rule
File size:1'099'776 bytes
First seen:2026-08-10 14:01:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'190 x AgentTesla, 20'337 x Formbook, 12'364 x SnakeKeylogger)
ssdeep 24576:TTHp4rAVMxtSFSnaf/8f49GaY+jAmzPJZHHS5w:fHp4rlxIFSZoGaYyAmvHHSC
TLSH T13B3512B06AADC821C8E247754A91E33842F86D85E920CB135FECFDE73976B076850B52
TrID 70.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.2% (.EXE) Win64 Executable (generic) (6522/11/2)
4.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon 3096968e8eb2b230 (5 x Formbook, 2 x RemcosRAT, 2 x AsyncRAT)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
48
Origin country :
HU HU
Vendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/5cfd6261-81e2-4d77-b6d3-0c932f3f2a8c/
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/79678/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a service
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
agenttesla packed vidar
Link:
https://www.filescan.io/uploads/6a79d9f9c28463a7097ad27a/reports/ab11f23d-17d0-449c-868c-016a076fe876/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/0a86c64e79af15ff094baad609d9651eb51e382c817498d44b2df82005fd3f1c
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-07-07T04:16:00Z UTC
Last seen:
2026-08-05T09:34:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/0a86c64e79af15ff094baad609d9651eb51e382c817498d44b2df82005fd3f1c/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/95a98d55-38a0-4dcc-b890-b63bf3762706
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/0a86c64e79af15ff094baad609d9651eb51e382c817498d44b2df82005fd3f1c
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0a86c64e79af15ff094baad609d9651eb51e382c817498d44b2df82005fd3f1c/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2026-07-07 13:52:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
19 of 27 (70.37%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=bkdmmttzv4k76cklvllatwlfd22r4obmqf2jrvclfx4cabp5h4oa._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook adware collection discovery execution persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/260810-rckx8sgf64/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
Enumerates physical storage devices
System Location Discovery: System Language Discovery
SmartAssembly .NET packer
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
0a86c64e79af15ff094baad609d9651eb51e382c817498d44b2df82005fd3f1c
MD5 hash:
37d4d53b7fa928f4a3f000002ce9f734
SHA1 hash:
708c0fbe63dd5f133ed5e1feccc0574eff33a6ac
Link:
https://www.unpac.me/results/79c9638a-5250-49c0-b497-1557170ba128/
SH256 hash:
3a1f3580d425ccdbd81e9d2473311c65547514614a8c53ce91a95f96e245fbb5
MD5 hash:
6b754f8e2c67efe3dd493f46c1bf6047
SHA1 hash:
182cedef8b6d9e256d350f5a7bd1c682cb05be68
Link:
https://www.unpac.me/results/79c9638a-5250-49c0-b497-1557170ba128/
SH256 hash:
2ff83a9ce65ab1ccd86b1066aee44a24eff1d1475529cc445a1d7685e3e22fa6
MD5 hash:
bbabcd5e10b93ecac7c7e9e06f4cb8f5
SHA1 hash:
ec4ad602855ab44c271092632a2c4cf614fbe8ae
Link:
https://www.unpac.me/results/79c9638a-5250-49c0-b497-1557170ba128/
SH256 hash:
60f928c36fdb6471a347596744a17416071f0d739bc3a5f73b2c9a5773955a41
MD5 hash:
bafb98cd5825d040592acc0c29b8a673
SHA1 hash:
ed36d06c88fb8113a709cbfc0d9dffbab280eacf
Link:
https://www.unpac.me/results/79c9638a-5250-49c0-b497-1557170ba128/
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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
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:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
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: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: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.

Cape
Cape
https://www.capesandbox.com/analysis/79678/

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