MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 86c4b66010280d6bd5f052d7d2ce8209a71fe8d0a74fb2469a1e0203d18b2574. 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: 16


Intelligence 16 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 86c4b66010280d6bd5f052d7d2ce8209a71fe8d0a74fb2469a1e0203d18b2574
SHA3-384 hash: 096e2ecd9b41973b195b06db94e7d636af9c9b828b65072ce7858083b097b4a073a13de9ec23a94cc743414495a88039
SHA1 hash: 7593ef00f01a5283b0aa7401b11377bf963044b6
MD5 hash: 53dcebc0162dfa2c90a784cfce083a0f
humanhash: skylark-earth-nineteen-missouri
File name:rComprobantedepago.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'349'421 bytes
First seen:2024-10-24 18:00:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash aaaa8913c89c8aa4a5d93f06853894da (246 x Formbook, 82 x AgentTesla, 74 x RedLineStealer)
ssdeep 24576:ffmMv6Ckr7Mny5QLgGj+u3Au9m+IIzckiLb5+83A:f3v+7/5QLgFucjb5+83A
TLSH T1D755F112B7D680B6D9A33975297BE32ADB3475194323C48BA7E02F778F111409B3B762
TrID 84.9% (.EXE) AutoIt3 compiled script executable (510622/80/67)
9.5% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
1.7% (.EXE) Win64 Executable (generic) (10522/11/4)
1.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
0.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
File icon (PE):PE icon
dhash icon b150b26869b2d471 (468 x Formbook, 101 x RedLineStealer, 94 x AgentTesla)
Reporter FXOLabs
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
449
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
rComprobantedepago.exe
Verdict:
Malicious activity
Analysis date:
2024-10-24 18:02:24 UTC
Tags:
autoit
Link:
https://app.any.run/tasks/96d40913-6ace-4dba-9d25-1761cd15dcfd

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Worm.Autoit.AMHC.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=671a8b5f2a2125d43597cd34
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:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
autoit compiled-script fingerprint keylogger lolbin microsoft_visual_cc overlay packed packed packer_detected shell32
Link:
https://www.filescan.io/uploads/671a8b5f0f780125dba1e32a/reports/a8f0d214-11d1-4328-8e8b-5daa7d424783/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/86c4b66010280d6bd5f052d7d2ce8209a71fe8d0a74fb2469a1e0203d18b2574
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4b5070f6-5b6b-48e4-a90d-e7b0c5e34b27
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1541414
Signature
AI detected suspicious sample
Contains functionality to detect sleep reduction / modifications
Machine Learning detection for sample
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Switches to a custom stack to bypass stack traces
Writes to foreign memory regions
Behaviour
Behavior Graph:
Download SVG
Score:
97%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/86c4b66010280d6bd5f052d7d2ce8209a71fe8d0a74fb2469a1e0203d18b2574
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/86c4b66010280d6bd5f052d7d2ce8209a71fe8d0a74fb2469a1e0203d18b2574/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-10-24 16:49:08 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=q3clmyaqfagwxvpqkll5ftucbgtr72gqu5h3eru2dybahumlev2a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
unknown_loader_036
Create hunting rule
admintool_powerrun
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/241024-wle6kazdrn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/77e00ba4-34cd-4873-96e9-def476a4d8cd
Unpacked files
SH256 hash:
fd318f675460c455b1bb5c8658248a3b5c4c7d1b38061050acc1434a970c0d89
MD5 hash:
62b76381ff8bcc33ec8bb249cb9e1e0f
SHA1 hash:
d00704b534e9abede16747559b1a049f5f318e61
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/52264a5d-9e7d-421e-b2f0-aab647f22df1/
SH256 hash:
af9c1709e9bbc4ca50f1b4fa24503c824dbad4fbfdf42541e589a0339cb0af3f
MD5 hash:
fb92aa40399a89836beb0664461cc6fe
SHA1 hash:
9342fde28f4a5137c2e5adde4a106362b57acc8c
Link:
https://www.unpac.me/results/52264a5d-9e7d-421e-b2f0-aab647f22df1/
SH256 hash:
86c4b66010280d6bd5f052d7d2ce8209a71fe8d0a74fb2469a1e0203d18b2574
MD5 hash:
53dcebc0162dfa2c90a784cfce083a0f
SHA1 hash:
7593ef00f01a5283b0aa7401b11377bf963044b6
Link:
https://www.unpac.me/results/52264a5d-9e7d-421e-b2f0-aab647f22df1/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/86c4b6601028/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/86c4b66010280d6bd5f052d7d2ce8209a71fe8d0a74fb2469a1e0203d18b2574

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
Create hunting rule
Author:Jean-Philippe Teissier / @Jipe_
Description:AutoIT packer
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:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants

File information

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

Malspam

Formbook

Executable exe 86c4b66010280d6bd5f052d7d2ce8209a71fe8d0a74fb2469a1e0203d18b2574

(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
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::CopySid
ADVAPI32.dll::GetLengthSid
ADVAPI32.dll::GetAce
USER32.dll::GetUserObjectSecurity
ADVAPI32.dll::InitializeAcl
ADVAPI32.dll::InitializeSecurityDescriptor
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::DuplicateTokenEx
ADVAPI32.dll::GetAclInformation
ADVAPI32.dll::GetSecurityDescriptorDacl
ADVAPI32.dll::GetTokenInformation
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::LoadLibraryW
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetDriveTypeW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
KERNEL32.dll::CreateFileW
KERNEL32.dll::CreateFileA
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_SVC_APICan Manipulate Windows ServicesADVAPI32.dll::OpenSCManagerW
ADVAPI32.dll::UnlockServiceDatabase
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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