MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ecfcb1b1ffd98d7fc34996aadca709e571267386b4e95ef68ca96bf516cb17d0. 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: 13


Intelligence 13 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ecfcb1b1ffd98d7fc34996aadca709e571267386b4e95ef68ca96bf516cb17d0
SHA3-384 hash: cfb2ac1396718a72fca8ed3de90df5452a3a38dcde5aa7b84ba37ef2833ae8f65c94868b2cbb83341e7899f3d3ec904e
SHA1 hash: d89e8b2deb385a89b410400fc1f28839d54b6348
MD5 hash: f5575a7f82c981a92e9938151971b9f1
humanhash: shade-carolina-grey-october
File name:commercialJ-88-PM-MRQ-5035-680112.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'346'063 bytes
First seen:2025-01-24 01:54:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash d3bf8a7746a8d1ee8f6e5960c3f69378 (247 x Formbook, 75 x AgentTesla, 64 x SnakeKeylogger)
ssdeep 24576:uRmJkcoQricOIQxiZY1iaChu9Ii7ASTcteO11A+RNIZXRl:7JZoQrbTFZY1iaCU9P7AFeO1zjIZXRl
TLSH T12D55E122B5C69035C2B327B19E7EF7A99A3D79360337D1D723C82E215E905416B2A733
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10522/11/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
File icon (PE):PE icon
dhash icon b150b26869b2d471 (468 x Formbook, 101 x RedLineStealer, 94 x AgentTesla)
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
675
Origin country :
CH CH
Vendor Threat Intelligence
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context autoit compiled-script evasive fingerprint fingerprint keylogger lolbin microsoft_visual_cc overlay packed packer_detected pcalua
Link:
https://www.filescan.io/uploads/6792f2f7ab59d51355efd19e/reports/47b487a6-9ca1-4d58-b8c5-2d546cd180cc/overview
Verdict:
Malicious
Labled as:
AIT:Trojan.Nymeria
Link:
https://www.hybrid-analysis.com/sample/ecfcb1b1ffd98d7fc34996aadca709e571267386b4e95ef68ca96bf516cb17d0
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/34afbaa7-c682-4358-9e0d-9b5092f99b4a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1598268
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Drops VBS files to the startup folder
Found direct / indirect Syscall (likely to bypass EDR)
Joe Sandbox ML detected suspicious sample
Machine Learning detection for dropped file
Machine Learning detection for 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 dropped file
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: Drops script at startup location
Sigma detected: Suspicious Process Parents
Sigma detected: WScript or CScript Dropper
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)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1598268 Sample: commercialJ-88-PM-MRQ-5035-... Startdate: 24/01/2025 Architecture: WINDOWS Score: 100 44 www.luxurylive.xyz 2->44 46 www.030002837.xyz 2->46 48 22 other IPs or domains 2->48 68 Antivirus detection for URL or domain 2->68 70 Antivirus / Scanner detection for submitted sample 2->70 72 Multi AV Scanner detection for submitted file 2->72 76 6 other signatures 2->76 11 commercialJ-88-PM-MRQ-5035-680112.exe 3 2->11         started        14 wscript.exe 1 2->14         started        signatures3 74 Performs DNS queries to domains with low reputation 46->74 process4 file5 42 C:\Users\user\AppData\...\jinrikimen.exe, PE32 11->42 dropped 17 jinrikimen.exe 1 11->17         started        84 Windows Scripting host queries suspicious COM object (likely to drop second stage) 14->84 21 jinrikimen.exe 14->21         started        signatures6 process7 file8 40 C:\Users\user\AppData\...\jinrikimen.vbs, data 17->40 dropped 56 Antivirus detection for dropped file 17->56 58 Multi AV Scanner detection for dropped file 17->58 60 Machine Learning detection for dropped file 17->60 66 2 other signatures 17->66 23 svchost.exe 17->23         started        62 Writes to foreign memory regions 21->62 64 Maps a DLL or memory area into another process 21->64 26 svchost.exe 21->26         started        signatures9 process10 signatures11 80 Maps a DLL or memory area into another process 23->80 28 a887vztKUtqKZxq.exe 23->28 injected process12 signatures13 82 Found direct / indirect Syscall (likely to bypass EDR) 28->82 31 notepad.exe 13 28->31         started        process14 signatures15 86 Tries to steal Mail credentials (via file / registry access) 31->86 88 Tries to harvest and steal browser information (history, passwords, etc) 31->88 90 Modifies the context of a thread in another process (thread injection) 31->90 92 3 other signatures 31->92 34 a887vztKUtqKZxq.exe 31->34 injected 38 firefox.exe 31->38         started        process16 dnsIp17 50 luxurylive.xyz 84.32.84.32, 62582, 62583, 62584 NTT-LT-ASLT Lithuania 34->50 52 www.030002837.xyz 161.97.142.144, 62570, 62571, 62572 CONTABODE United States 34->52 54 9 other IPs or domains 34->54 78 Found direct / indirect Syscall (likely to bypass EDR) 34->78 signatures18
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ecfcb1b1ffd98d7fc34996aadca709e571267386b4e95ef68ca96bf516cb17d0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ecfcb1b1ffd98d7fc34996aadca709e571267386b4e95ef68ca96bf516cb17d0/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-01-24 01:31:37 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5t6ldmp73ggx7q2js2vnzjyj4vysm44gwtuv55umvfv7kfwlc7ia._file
Verdict:
malicious
Label(s):
admintool_powerrun
Create hunting rule
unknown_loader_036
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Link:
https://tria.ge/reports/250124-cb476avrdn/
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
AutoIT Executable
Suspicious use of SetThreadContext
Drops startup file
Executes dropped EXE
Loads dropped DLL
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/d5e69d1c-acf5-494a-9970-9c656cc5a308
Unpacked files
SH256 hash:
a012a8fefcc30c7107742aecd6f4c2be32b139558398a6596d13a78d7cfb1559
MD5 hash:
3c340259c6d3bd72b20e19d3ccf1a08f
SHA1 hash:
bb4dab889b810506ca7cf4cda338f5184d693eab
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/83919e11-aa11-4175-87c2-8395a2533686/
Parent samples :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 hash:
d55ddcd782cbf2a12dc53c70efd1089dbc66634ace9144167a2f7e460935a1fe
MD5 hash:
2ff9f42b954972e24ba3b4e36a1407e0
SHA1 hash:
cdbbbecc0986d6a87e82095abc97d559112f4caf
Link:
https://www.unpac.me/results/83919e11-aa11-4175-87c2-8395a2533686/
SH256 hash:
ecfcb1b1ffd98d7fc34996aadca709e571267386b4e95ef68ca96bf516cb17d0
MD5 hash:
f5575a7f82c981a92e9938151971b9f1
SHA1 hash:
d89e8b2deb385a89b410400fc1f28839d54b6348
Link:
https://www.unpac.me/results/83919e11-aa11-4175-87c2-8395a2533686/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ecfcb1b1ffd9/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/ecfcb1b1ffd98d7fc34996aadca709e571267386b4e95ef68ca96bf516cb17d0

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: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: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)

File information

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

Malspam

Formbook

Executable exe ecfcb1b1ffd98d7fc34996aadca709e571267386b4e95ef68ca96bf516cb17d0

(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::WriteConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileW
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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