MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 385daa6df4e6c93c6402e26459810c3217594916607de466f152d0e4a6b6c1e8. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 385daa6df4e6c93c6402e26459810c3217594916607de466f152d0e4a6b6c1e8
SHA3-384 hash: 5b114f13b81b340f62730579842d63732c1c33df34e0e3ac09e1b51393f9728a5a219d7b0491e3e67a2fa9bfba92ab6b
SHA1 hash: 766ba9cc91445808e3294500f74ad2e2a7d0a7a9
MD5 hash: ec08ddaabb34d92e11c5ca4e5b96184e
humanhash: finch-apart-missouri-pennsylvania
File name:invoice copy.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'480'192 bytes
First seen:2025-05-16 13:48:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 3d95adbf13bbe79dc24dccb401c12091 (881 x AgentTesla, 737 x FormBook, 236 x SnakeKeylogger)
ssdeep 24576:ktb20pkaCqT5TBWgNQ7aGxO2gHiQkmxVmHRczoKTkw6A:NVg5tQ7aG0JPcA3Z5
Threatray 2'202 similar samples on MalwareBazaar
TLSH T19F65CF12739DC361C37251B3BA5AB711AEBB7C2506A0F42B2F943D3CB970661521EA73
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 5c1c78c9e072f1d8 (7 x Formbook, 3 x RedLineStealer, 2 x AveMariaRAT)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
457
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
invoice copy.pdf.exe
Verdict:
No threats detected
Analysis date:
2025-05-16 14:47:54 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/3817f657-0b48-49a9-afb4-a7e5beaa8ccb

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
94.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68274313e16384d6a704fc36
Tags:
underscore 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:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context autoit compiled-script fingerprint keylogger masquerade microsoft_visual_cc
Link:
https://www.filescan.io/uploads/68274256c609634bd7c5b6ce/reports/86363380-726c-43d3-8492-b87c04b04097/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/385daa6df4e6c93c6402e26459810c3217594916607de466f152d0e4a6b6c1e8
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8ebbfaab-0003-47e5-b7c8-25c053b550e3
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1691992
Signature
Binary is likely a compiled AutoIt script file
Found direct / indirect Syscall (likely to bypass EDR)
Initial sample is a PE file and has a suspicious name
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)
Sigma detected: Suspicious Double Extension File Execution
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)
Uses an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1691992 Sample: invoice copy.pdf.exe Startdate: 16/05/2025 Architecture: WINDOWS Score: 100 33 www.br369874.xyz 2->33 35 slot4d.life 2->35 37 5 other IPs or domains 2->37 47 Suricata IDS alerts for network traffic 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 Yara detected FormBook 2->51 55 6 other signatures 2->55 11 invoice copy.pdf.exe 2 2->11         started        signatures3 53 Performs DNS queries to domains with low reputation 33->53 process4 signatures5 67 Binary is likely a compiled AutoIt script file 11->67 69 Writes to foreign memory regions 11->69 71 Maps a DLL or memory area into another process 11->71 14 svchost.exe 11->14         started        process6 signatures7 73 Maps a DLL or memory area into another process 14->73 17 kK1sJToSfSZi4z9ToMtd4.exe 14->17 injected process8 signatures9 45 Found direct / indirect Syscall (likely to bypass EDR) 17->45 20 PresentationHost.exe 13 17->20         started        process10 signatures11 57 Tries to steal Mail credentials (via file / registry access) 20->57 59 Tries to harvest and steal browser information (history, passwords, etc) 20->59 61 Modifies the context of a thread in another process (thread injection) 20->61 63 3 other signatures 20->63 23 kK1sJToSfSZi4z9ToMtd4.exe 20->23 injected 27 chrome.exe 20->27         started        29 firefox.exe 20->29         started        process12 dnsIp13 39 www.br369874.xyz 172.67.135.68, 49693, 49694, 49695 CLOUDFLARENETUS United States 23->39 41 slot4d.life 184.168.111.254, 49697, 49698, 49699 AS-26496-GO-DADDY-COM-LLCUS United States 23->41 43 ikure.health 3.33.130.190, 49692, 49701, 49702 AMAZONEXPANSIONGB United States 23->43 65 Found direct / indirect Syscall (likely to bypass EDR) 23->65 31 WerFault.exe 4 27->31         started        signatures14 process15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/385daa6df4e6c93c6402e26459810c3217594916607de466f152d0e4a6b6c1e8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/385daa6df4e6c93c6402e26459810c3217594916607de466f152d0e4a6b6c1e8/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-05-16 13:49:09 UTC
File Type:
PE (Exe)
Extracted files:
25
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hbo2u3pu43etyzac4jsftaimgilvssiwmb66izxrkliojjvwyhua._file
Verdict:
malicious
Label(s):
unc_loader_036
Create hunting rule
formbook
Create hunting rule
autoit
Create hunting rule
Similar samples:
1e13884817a81cddd6049d7e06bcb4756aa49836daab26a8315b6ce47320af8a
Formbook
2744da94da0a5d848f9fa9dc01f13b7040d2eb9305954fdfacf97f4aa9016495
Formbook
566cdee8166993e2de532f7b0a3a914aa7fe872adae77db7ea406bc3df59910f
Formbook
5d2614ebe7680070e612547a85691905a88def5e660d1a2ec3a3defc8299c1ec
Formbook
6ae5571ed26d2de037d1717137fd7f0c3b77a19530003c206280bdb49044a6f7
Formbook
753a49b70d32e9b5fba67f7c07a71634266b6f31339265c1e32c1e1d30965e4c
Formbook
89453961b990b5fe0cae4bc8fb354e107f4aa429acb83c359bd7484e3234e7b4
Formbook
8cb54738d97401a4520aa2f8b3260fff8d1fd1b6843571b1e1ddd1c232fe04e9
Formbook
8ddcd9773b5c9cec6e3d0e4d996038faa74cbe9a971665cf596d8786de25ac01
Formbook
error
Formbook
+ 2'192 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/250516-q4nyjavqw8/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/adf843b1-67bc-4acd-9f33-26a9f9e65d7c
Unpacked files
SH256 hash:
385daa6df4e6c93c6402e26459810c3217594916607de466f152d0e4a6b6c1e8
MD5 hash:
ec08ddaabb34d92e11c5ca4e5b96184e
SHA1 hash:
766ba9cc91445808e3294500f74ad2e2a7d0a7a9
Link:
https://www.unpac.me/results/322c0c32-0460-4a47-a163-2888921c71a1/
SH256 hash:
0823f2bbf151bc8f13ff90b3d3dcdc858de21b5d9db2e2f1c4b4c60dc5cec557
MD5 hash:
fc23fb330638af03463d039b573ec638
SHA1 hash:
f74cb9732f4fc3dd66af60eab4892e0c8c363a20
Link:
https://www.unpac.me/results/322c0c32-0460-4a47-a163-2888921c71a1/
SH256 hash:
40c32f367ea8ded828c04b4b2c70edaca2cd5983df5eec180b95275f86b466b9
MD5 hash:
6d734c4c54dbc8e5f2f465a8a4a990f4
SHA1 hash:
365949330fa9ddaf27cd3c2cb76595eaf65ffa80
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/322c0c32-0460-4a47-a163-2888921c71a1/
Parent samples :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 family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/385daa6df4e6/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/385daa6df4e6c93c6402e26459810c3217594916607de466f152d0e4a6b6c1e8

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:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
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 385daa6df4e6c93c6402e26459810c3217594916607de466f152d0e4a6b6c1e8

(this sample)

  
Delivery method
Distributed via e-mail attachment

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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