MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 afdb1661a8c2b4af2d2b07274e4280cc62eb056e2f917b4251e9088335f0edab. 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: 15


Intelligence 15 IOCs YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: afdb1661a8c2b4af2d2b07274e4280cc62eb056e2f917b4251e9088335f0edab
SHA3-384 hash: cc5fa9600597b891aed518fb10daf71b94e616412888a308bb709b0421e33603715e76794a6818290e6e27e20a67522f
SHA1 hash: c3add4fe3fc373ecb6637fcf58fac2dffbd681ed
MD5 hash: 2b9956a9f34d15b01b77c9c655dbc683
humanhash: king-iowa-ink-pizza
File name:mpclient.dll
Download: download sample
Signature Formbook
Create hunting rule
File size:2'905'600 bytes
First seen:2025-08-10 10:16:39 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 36ad25deee96c987e8b8a6ea13be4813 (1 x Formbook)
ssdeep 49152:M+FYr48dDXyOmXgaihNGDliWNgLMIOJa108ZtlNCUCWdSR8u1Os2AvhMRJTYdMZH:JFxJapl0U1+8VtAvhMRJTYUH
Threatray 187 similar samples on MalwareBazaar
TLSH T12DD5AE01A3A800B5D87BD738CA659333D670B9968774E14F0A9DD6062F73EA19B3F712
TrID 48.7% (.EXE) Win64 Executable (generic) (10522/11/4)
23.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.3% (.EXE) OS/2 Executable (generic) (2029/13)
9.2% (.EXE) Generic Win/DOS Executable (2002/3)
9.2% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
77
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
mpclient.dll
Verdict:
No threats detected
Analysis date:
2025-08-10 10:17:43 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/4cf8773d-c766-4e51-a235-db88d25d64ba

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/19943/
Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=689871b0fca70bd90e8da071
Tags:
virus
Result
Verdict:
Clean
Maliciousness:
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context crypto fingerprint masquerade microsoft_visual_cc packed
Link:
https://www.filescan.io/uploads/689871b19ef4d2ff7cf4a625/reports/312cfe96-825b-4370-b8b0-0d3c883319cc/overview
Verdict:
Malicious
Labled as:
W64/Agent.KHK.gen
Link:
https://www.hybrid-analysis.com/sample/afdb1661a8c2b4af2d2b07274e4280cc62eb056e2f917b4251e9088335f0edab
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8ca0cccb-bf7f-49a1-8936-ebb0d6adf4ef
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1753975
Signature
Allocates memory in foreign processes
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Writes to foreign memory regions
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1753975 Sample: mpclient.dll.exe Startdate: 10/08/2025 Architecture: WINDOWS Score: 64 30 Multi AV Scanner detection for submitted file 2->30 32 Joe Sandbox ML detected suspicious sample 2->32 8 loaddll64.exe 1 2->8         started        process3 process4 10 cmd.exe 1 8->10         started        12 rundll32.exe 8->12         started        15 rundll32.exe 8->15         started        17 32 other processes 8->17 signatures5 19 rundll32.exe 10->19         started        40 Writes to foreign memory regions 12->40 42 Allocates memory in foreign processes 12->42 44 Injects a PE file into a foreign processes 12->44 22 aspnet_wp.exe 12->22         started        24 aspnet_wp.exe 15->24         started        process6 signatures7 34 Writes to foreign memory regions 19->34 36 Allocates memory in foreign processes 19->36 38 Injects a PE file into a foreign processes 19->38 26 aspnet_wp.exe 19->26         started        28 aspnet_wp.exe 19->28         started        process8
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/afdb1661a8c2b4af2d2b07274e4280cc62eb056e2f917b4251e9088335f0edab
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PDB Path PE (Portable Executable) Win 64 Exe x64
Link:
https://app.malva.re/file/2b9956a9f34d15b01b77c9c655dbc683
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/afdb1661a8c2b4af2d2b07274e4280cc62eb056e2f917b4251e9088335f0edab/
Verdict:
Malicious
Threat:
VHO:Trojan.Win32.InjectorNetT
Link:
https://tip.neiki.dev/file/afdb1661a8c2b4af2d2b07274e4280cc62eb056e2f917b4251e9088335f0edab
Threat name:
Win64.Trojan.Swotter
Create hunting rule
Status:
Malicious
First seen:
2025-08-10 04:53:03 UTC
File Type:
PE+ (Dll)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=v7nrmyniyk2k6ljla4tu4quazrrowblof6ixwqsr5eeignpq5wvq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2eb22c5857b92edbb22f4bae551b882e6cc714ba92b32be8927488bb46518da9
Formbook
5eef22a6ffa213297c9642a5d77a749d73b84e2723b3fc10e70d05da6f507af3
Formbook
67223d2d06877753d37011fa5a9fac6f4155f3e341c56b874c2a6775649f51f0
Formbook
894a300acdeb01edfece53b7e2a11f6a439dbd69d950936cafbdb524a5e498d5
Formbook
9fad45abdb417f8fe5cb3781708fe5bae091b48ef60d8c0cc0c05fff2b12132f
Formbook
afdb1661a8c2b4af2d2b07274e4280cc62eb056e2f917b4251e9088335f0edab
Formbook
error
Formbook
fde9c39712284a016a2440cba122aae2ab70659bc7d10f8bcc3e43b4fd299da9
Formbook
+ 177 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/250810-mbdejsxzc1/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4822d425-1a3b-4eab-86f2-1f48b131821e
Unpacked files
SH256 hash:
afdb1661a8c2b4af2d2b07274e4280cc62eb056e2f917b4251e9088335f0edab
MD5 hash:
2b9956a9f34d15b01b77c9c655dbc683
SHA1 hash:
c3add4fe3fc373ecb6637fcf58fac2dffbd681ed
Link:
https://www.unpac.me/results/ad09e9d4-9b37-42c7-a269-96518c4cd75b/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/afdb1661a8c2/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/afdb1661a8c2b4af2d2b07274e4280cc62eb056e2f917b4251e9088335f0edab

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__MemoryWorkingSet
Create hunting rule
Author:Fernando Mercês
Description:Anti-debug process memory working set size check
Reference:http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:Jupyter_infostealer
Create hunting rule
Author:CD_R0M_
Description:Rule for Jupyter Infostealer/Solarmarker malware from september 2021-December 2022
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
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: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:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information

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

Malspam

Formbook

Executable exe afdb1661a8c2b4af2d2b07274e4280cc62eb056e2f917b4251e9088335f0edab

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/19943/

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 (GUARD_CF)high
Reviews
IDCapabilitiesEvidence
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
WIN32_PROCESS_APICan Create Process and ThreadsADVAPI32.dll::OpenProcessToken
KERNEL32.dll::OpenProcess
KERNEL32.dll::VirtualAllocExNuma
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThreadpoolIo
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetSystemInfo
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::FreeConsole
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::GetSystemDirectoryW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueW
WIN_BCRYPT_APICan Encrypt Filesbcrypt.dll::BCryptCreateHash
bcrypt.dll::BCryptDestroyHash
bcrypt.dll::BCryptFinishHash
bcrypt.dll::BCryptGenRandom
bcrypt.dll::BCryptGetProperty
bcrypt.dll::BCryptHashData
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW

Comments