MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8340eb528d4150ab1b95b165a204017213f09775ac4e567a0d029266edd4038c. 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 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8340eb528d4150ab1b95b165a204017213f09775ac4e567a0d029266edd4038c
SHA3-384 hash: 699fa105aae3330d9652b9bf2646bcb67622cbb12c930162cc6b465fe3fb4e43e207f8f063775592e701c67a2c1dc489
SHA1 hash: 7bbef797e250d86c2b0e2b1e4adf74731a79cd1b
MD5 hash: f727512853b20828698f66bcea3043aa
humanhash: fourteen-mobile-south-fourteen
File name:rPO8220287.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'187'328 bytes
First seen:2025-06-11 12:00:13 UTC
Last seen:2025-06-20 08:11:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 3d95adbf13bbe79dc24dccb401c12091 (881 x AgentTesla, 737 x FormBook, 236 x SnakeKeylogger)
ssdeep 24576:9tb20pkaCqT5TBWgNQ7aF7fBvGsUtuBxMa//XGFUs6A:uVg5tQ7aFFvGsUtujeFh5
Threatray 2'416 similar samples on MalwareBazaar
TLSH T1DA45CF1373DD8361C3725273BA25BB41AEBF782506A5F96B2FD8093DE920121521EB73
TrID 40.3% (.EXE) Win64 Executable (generic) (10522/11/4)
19.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
17.2% (.EXE) Win32 Executable (generic) (4504/4/1)
7.7% (.EXE) OS/2 Executable (generic) (2029/13)
7.6% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter FXOLabs
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
530
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
rPO8220287.exe
Verdict:
No threats detected
Analysis date:
2025-06-11 13:14:19 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/c0c781f7-4dec-4e06-aa23-65af1f700e5f

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/8963/
Detection(s):
SecuriteInfo.com.PSW.Agent.BORA.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68496fe58bd5d68a12e7b39c
Tags:
autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Unauthorized injection to a system process
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/8340eb528d4150ab1b95b165a204017213f09775ac4e567a0d029266edd4038c
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/86bfea51-a297-448b-8d9f-ed02df4c288f
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1712221
Signature
Binary is likely a compiled AutoIt script file
Joe Sandbox ML detected suspicious sample
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)
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)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1712221 Sample: rPO8220287.exe Startdate: 11/06/2025 Architecture: WINDOWS Score: 100 33 www.signs-of-dementia.xyz 2->33 35 www.infinityplatform.xyz 2->35 37 20 other IPs or domains 2->37 45 Suricata IDS alerts for network traffic 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 Yara detected FormBook 2->49 53 2 other signatures 2->53 11 rPO8220287.exe 4 2->11         started        signatures3 51 Performs DNS queries to domains with low reputation 35->51 process4 signatures5 63 Binary is likely a compiled AutoIt script file 11->63 65 Writes to foreign memory regions 11->65 67 Maps a DLL or memory area into another process 11->67 69 Switches to a custom stack to bypass stack traces 11->69 14 svchost.exe 11->14         started        process6 signatures7 71 Maps a DLL or memory area into another process 14->71 17 IznK14fRbac8.exe 14->17 injected process8 process9 19 dfrgui.exe 13 17->19         started        22 psr.exe 17->22         started        signatures10 55 Tries to steal Mail credentials (via file / registry access) 19->55 57 Tries to harvest and steal browser information (history, passwords, etc) 19->57 59 Modifies the context of a thread in another process (thread injection) 19->59 61 3 other signatures 19->61 24 F2MojYOX4ZRNiQ.exe 19->24 injected 27 chrome.exe 19->27         started        29 firefox.exe 19->29         started        process11 dnsIp12 39 www.frozoleap.live 203.161.42.71, 49710, 49711, 49712 VNPT-AS-VNVNPTCorpVN Malaysia 24->39 41 tieuluong.shop 84.32.84.32, 49706, 49707, 49708 NTT-LT-ASLT Lithuania 24->41 43 10 other IPs or domains 24->43 31 WerFault.exe 4 27->31         started        process13
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8340eb528d4150ab1b95b165a204017213f09775ac4e567a0d029266edd4038c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8340eb528d4150ab1b95b165a204017213f09775ac4e567a0d029266edd4038c/
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-06-11 11:23:58 UTC
File Type:
PE (Exe)
Extracted files:
24
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qnaowuunifikwg4vwfs2ebaboij7bf3vvrhfm6qnakjgn3ouaoga._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
autoit
Create hunting rule
unc_loader_036
Create hunting rule
Similar samples:
1ed2e555c157e4195aaf56d326b7f89415efc635dc24f56ac58945ec2cb5b833
Formbook
3eace816daaec69a4652ce191c0369a0ce5aa933a38d68996e089e8949e46c3d
Formbook
46a2ace53d90eca99c8a1cd45c77d4eb64d92b9673d10acd9254610628ed6ce1
Formbook
8340eb528d4150ab1b95b165a204017213f09775ac4e567a0d029266edd4038c
Formbook
df5b8d6a7a811ac7627a8dc7be72f00b5b335a0aff5bdeaaea315197866b0050
Formbook
e4fc84d04575c5195309cf9c27d1ef3f0eac085bfc3d813380fe1802c6677e4a
Formbook
error
Formbook
+ 2'406 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/250611-n6kb1sfp8z/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e87597d6-a602-4709-9b44-359609ecdfcf
Unpacked files
SH256 hash:
8340eb528d4150ab1b95b165a204017213f09775ac4e567a0d029266edd4038c
MD5 hash:
f727512853b20828698f66bcea3043aa
SHA1 hash:
7bbef797e250d86c2b0e2b1e4adf74731a79cd1b
Link:
https://www.unpac.me/results/ba9755cb-8aa1-4281-a6b6-9be8f9fb00bf/
SH256 hash:
fb20b713332441eb2484ef564a6ab5add79844fc382f2191594f1e88c3956d89
MD5 hash:
d2924285c150fd6fe85e7720d354d1df
SHA1 hash:
47dde4adeeb1b47a10dff3b8ed512f8503b98d96
Link:
https://www.unpac.me/results/ba9755cb-8aa1-4281-a6b6-9be8f9fb00bf/
SH256 hash:
c38d72a915a5d5c3c6c0d931732df248f057a224f205d125521a8cb4e6de985a
MD5 hash:
507c3cd6b91dbaf9aaad74a2bf68a86b
SHA1 hash:
fa51ec3dd084939eefd496b381566d234a5a46d0
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/ba9755cb-8aa1-4281-a6b6-9be8f9fb00bf/
Parent samples :
1ed2e555c157e4195aaf56d326b7f89415efc635dc24f56ac58945ec2cb5b833
8340eb528d4150ab1b95b165a204017213f09775ac4e567a0d029266edd4038c
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8340eb528d41/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/8340eb528d4150ab1b95b165a204017213f09775ac4e567a0d029266edd4038c

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:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:dgaagas
Create hunting rule
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
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:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
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: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)
Rule name:YahLover
Create hunting rule
Author:Kevin Falcoz
Description:YahLover

File information

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

Malspam

Formbook

Executable exe 8340eb528d4150ab1b95b165a204017213f09775ac4e567a0d029266edd4038c

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/8963/

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_NXMissing Non-Executable Memory Protectioncritical
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::AllocateAndInitializeSid
ADVAPI32.dll::CopySid
ADVAPI32.dll::FreeSid
ADVAPI32.dll::GetLengthSid
ADVAPI32.dll::GetTokenInformation
ADVAPI32.dll::GetAce
COM_BASE_APICan Download & Execute componentsole32.dll::CLSIDFromProgID
ole32.dll::CoCreateInstance
ole32.dll::CoCreateInstanceEx
ole32.dll::CoInitializeSecurity
ole32.dll::CreateStreamOnHGlobal
MULTIMEDIA_APICan Play MultimediaWINMM.dll::mciSendStringW
WINMM.dll::timeGetTime
WINMM.dll::waveOutSetVolume
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AddAce
ADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::CheckTokenMembership
ADVAPI32.dll::DuplicateTokenEx
ADVAPI32.dll::GetAclInformation
ADVAPI32.dll::GetSecurityDescriptorDacl
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::ShellExecuteW
SHELL32.dll::SHFileOperationW
WIN32_PROCESS_APICan Create Process and ThreadsADVAPI32.dll::CreateProcessAsUserW
KERNEL32.dll::CreateProcessW
ADVAPI32.dll::CreateProcessWithLogonW
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
ADVAPI32.dll::OpenThreadToken
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::SetSystemPowerState
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetDriveTypeW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
IPHLPAPI.DLL::IcmpCreateFile
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
ADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LogonUserW
ADVAPI32.dll::LookupPrivilegeValueW
WIN_NETWORK_APISupports Windows NetworkingMPR.dll::WNetAddConnection2W
MPR.dll::WNetUseConnectionW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegConnectRegistryW
ADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::BlockInput
USER32.dll::CloseDesktop
USER32.dll::CreateMenu
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::FindWindowW

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