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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a8a6f5ad5f6bc59b64af1cca3bf0d5b6bcc8686a0dd8a8bb5cb244c2edcf3e23. 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: 17


Intelligence 17 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a8a6f5ad5f6bc59b64af1cca3bf0d5b6bcc8686a0dd8a8bb5cb244c2edcf3e23
SHA3-384 hash: ffd85a7def5f4a2f9e75e8da287a227fbe87943dd4d2a645f70cbbd002c67452d22eb7f653ec25a7f87d11764ad7a5a5
SHA1 hash: 31b97fe2256c70164ad1661990f824bec502125f
MD5 hash: 6367307dd5e1cbc6c1f0a160e0c5d421
humanhash: eighteen-quebec-pizza-grey
File name:SC_TR11670000_pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:756'736 bytes
First seen:2026-10-08 12:46:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/vnd.microsoft.portable-executable
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'249 x AgentTesla, 20'546 x Formbook, 12'385 x SnakeKeylogger)
ssdeep 12288:G5y266SZzpX8zmOsJ4/cWGjHINYUAZbZXBviLsxcmYyiJLd6Orx7KwZN1R:IpKX8hsJ4/czjHvxZb90LsxcmYFLsOrT
TLSH T1ADF4F1043369AF03D4736BF00970E37587B5AE95A921D316CFEAACDB783A741A944783
TrID 73.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.6% (.EXE) Win64 Executable (generic) (6522/11/2)
4.5% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
216
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/417e8320-a45c-45db-8988-7c665a7afa43/
Malware family:
formbook
Create hunting rule
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-10-08 12:56:16 UTC
Tags:
netreactor formbook stealer xloader
Link:
https://app.any.run/tasks/d94f4f4e-f8dc-448d-9ed9-d4c0359bfd3c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/91094/
Detection(s):
SecuriteInfo.com.Trojan.Inject7.4668.17511.12017.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade obfuscated packed vbnet
Link:
https://www.filescan.io/uploads/6ac790d6d5032ed18eec2803/reports/196d647b-2370-46ce-944f-d6280cc30121/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a8a6f5ad5f6bc59b64af1cca3bf0d5b6bcc8686a0dd8a8bb5cb244c2edcf3e23
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-10-08T09:05:00Z UTC
Last seen:
2026-10-10T10:32:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/a8a6f5ad5f6bc59b64af1cca3bf0d5b6bcc8686a0dd8a8bb5cb244c2edcf3e23/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d8c00706-7fc3-47ca-8836-12499fe33e35
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1984172
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Unusual module load detection (module proxying)
Yara detected FormBook
Yara detected MSIL Injector
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1984172 Sample: SC_TR11670000_pdf.exe Startdate: 08/10/2026 Architecture: WINDOWS Score: 100 33 www.zjkueyua.com 2->33 35 www.weblaugrana.com 2->35 37 12 other IPs or domains 2->37 57 Suricata IDS alerts for network traffic 2->57 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 9 other signatures 2->63 9 SC_TR11670000_pdf.exe 4 2->9         started        13 explorer.exe 54 1 2->13 injected signatures3 process4 dnsIp5 31 C:\Users\user\...\SC_TR11670000_pdf.exe.log, ASCII 9->31 dropped 65 Adds a directory exclusion to Windows Defender 9->65 67 Tries to detect virtualization through RDTSC time measurements 9->67 69 Injects a PE file into a foreign processes 9->69 73 2 other signatures 9->73 16 SC_TR11670000_pdf.exe 9->16         started        19 powershell.exe 23 9->19         started        39 www.narrelancosmeticsurgery.com.au 198.50.252.65, 49713, 80 OVHFR Canada 13->39 41 www.sisleycosmetici.com 143.246.223.42, 49721, 80 OARNET-AS-OARnetUS Moldova 13->41 43 4 other IPs or domains 13->43 71 System process connects to network (likely due to code injection or exploit) 13->71 21 control.exe 13->21         started        file6 signatures7 process8 signatures9 45 Sample uses process hollowing technique 16->45 47 Queues an APC in another process (thread injection) 16->47 23 WmiPrvSE.exe 19->23         started        25 conhost.exe 19->25         started        49 Modifies the context of a thread in another process (thread injection) 21->49 51 Maps a DLL or memory area into another process 21->51 53 Tries to detect virtualization through RDTSC time measurements 21->53 55 2 other signatures 21->55 27 cmd.exe 1 21->27         started        process10 process11 29 conhost.exe 27->29         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a8a6f5ad5f6bc59b64af1cca3bf0d5b6bcc8686a0dd8a8bb5cb244c2edcf3e23
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.48 Win 32 Exe x86
Link:
https://app.malva.re/file/6367307dd5e1cbc6c1f0a160e0c5d421
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a8a6f5ad5f6bc59b64af1cca3bf0d5b6bcc8686a0dd8a8bb5cb244c2edcf3e23/
Threat name:
ByteCode-MSIL.Backdoor.XWorm
Create hunting rule
Status:
Malicious
First seen:
2026-10-08 12:44:58 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vctpllk7npczwzfpdtfdx4gvw26mq2dkbxmkro24wjcmf3ophyrq._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:be21 defense_evasion discovery execution privilege_escalation rat spyware stealer trojan
Link:
https://tria.ge/reports/261008-p1aq3axvdy/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
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
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
a8a6f5ad5f6bc59b64af1cca3bf0d5b6bcc8686a0dd8a8bb5cb244c2edcf3e23
MD5 hash:
6367307dd5e1cbc6c1f0a160e0c5d421
SHA1 hash:
31b97fe2256c70164ad1661990f824bec502125f
Link:
https://www.unpac.me/results/e2ab370d-23c3-4d36-9433-08617f2c5a3b/
SH256 hash:
0eb31c973a53f3dfc199672be4df2f8f0e5a0889e61e364206f8aa5b86589da8
MD5 hash:
8817fdf21ea4f6e779eb76b4ea8450e3
SHA1 hash:
341adba2fd40853b822bab7ede57567005fcd18b
Link:
https://www.unpac.me/results/e2ab370d-23c3-4d36-9433-08617f2c5a3b/
SH256 hash:
405d0dcbe8454646de26e8b2db78435803b99dccdcbcdaa1028c56c7c0c6c3ec
MD5 hash:
3e3fb75f3074003ae2ff07ecfe6fd38d
SHA1 hash:
5200f5572d3167c84842bbff7c48506011585172
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/e2ab370d-23c3-4d36-9433-08617f2c5a3b/
Parent samples :
64506ae267aed8afa5cfbb41ca8f5677600747f02fe27b8d8d926d12e3ad99f2
354ed74cf297bdc4d920e3bb357fea7202856277501cbe914b1dfbe8813e841c
7a9bffbf3a920d9b72d73b73cf09f3be5dadf025055f42b5dd12761ab7c8dd34
461ba9a7d6b344421967b3c71630ec4796126b5f20bef32111447ac58e9b9202
a36cbacd3c6950de6319523835e895e8b35e32549c3a4673b3ead5215ad0d3e8
a8a6f5ad5f6bc59b64af1cca3bf0d5b6bcc8686a0dd8a8bb5cb244c2edcf3e23
4e2d3b193a9bfb9f3a369a251a1b722450fa13d8fc193d3c872ebf1062783fde
3ea03e28c0a5a8c8a4910f26b2a1ee073053f76cbd9d21729dcec81543ac1617
e15e5d4f77fa217cf9ccf18fc0fff19e9b9e47d8c65413f2751904a14fcb8658
024d5533d9cd346418c7780706410fca28f88e33291e8ca6b382299dfea043da
db4732a4b2646f6ddef351784943f58c27311215807a9ba670e9f687366e2a43
b7e0ed86028fb5faa05901945ae751051dc29ac8729b1afc62cc6efe17e20c0a
SH256 hash:
922af6ddb5911744abfdab57a4fcc647f31133bbfeeb9da493e95106d95e3d12
MD5 hash:
687ce8f944f6bcc4359e20f1393a7b74
SHA1 hash:
eb5b52893dec1401ac6f4dbb2d3ed1b3e1952ebc
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_w0
Create hunting rule
Formbook
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Link:
https://www.unpac.me/results/e2ab370d-23c3-4d36-9433-08617f2c5a3b/
Parent samples :
a8a6f5ad5f6bc59b64af1cca3bf0d5b6bcc8686a0dd8a8bb5cb244c2edcf3e23
3ea03e28c0a5a8c8a4910f26b2a1ee073053f76cbd9d21729dcec81543ac1617
b7e0ed86028fb5faa05901945ae751051dc29ac8729b1afc62cc6efe17e20c0a
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/a8a6f5ad5f6bc59b64af1cca3bf0d5b6bcc8686a0dd8a8bb5cb244c2edcf3e23

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:DotNet_RGB_Embedded_AssemblyLoader_Hunt
Create hunting rule
Author:ShadowOpCode
Description:Hunt .NET bitmap RGB extraction combined with embedded resources and assembly loading
Rule name:HUNT_NET_Loader_ImagePixel_To_AssemblyLoad
Create hunting rule
Author:Anish Bogati
Description:Hunting: .NET loader that reads pixel data from an embedded image, loads it as a .NET assembly, and runs it via reflection or late binding. Catches bitmap-steganography loaders.
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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:WIN_Malware_Derialock_ForgeAuto_3127f957_Extrait
Create hunting rule
Author:Marjoriefort
Description:Detects Derialock (pe, etat extrait)
Rule name:WIN_Sample_Unique_69354b41
Create hunting rule
Author:Marjoriefort
Description:Specimen unique (soumission Bazaar) - strings distinctifs propres au sample
Reference:69354b41e10daf03d3f3af881b32d5c0fec56b1cfe96629fd4c5263413a42854.exe

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/91094/

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