MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 31e1c395cf3662749751a3c26bfb48d8c02c68270f24c8267d38f203318c0f8f. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 31e1c395cf3662749751a3c26bfb48d8c02c68270f24c8267d38f203318c0f8f
SHA3-384 hash: 9f1be64a099ba13e89d4af890da79d544ac0a2220b7d7a512cab26c703201fc99ef36059d33406f2afac6ed9c149358f
SHA1 hash: 3db0e79ca69c0292bcc071c7959925b06c392ed6
MD5 hash: ba412d249d252f56cab5ff86072cd42e
humanhash: jersey-oregon-iowa-michigan
File name:Shipping Documents 800517387391.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'315'840 bytes
First seen:2024-07-10 13:00:02 UTC
Last seen:2024-07-10 13:45:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:RAHnh+eWsN3skA4RV1Hom2KXMmHa/15Ef4N2UVkVNRBTM5:oh+ZkldoPK8Ya/zmceRBu
TLSH T12B55AD0273918032FFAAA2735F66F27157BD6D290123852F13D82D7BBD781B2166D263
TrID 63.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
11.6% (.EXE) Win64 Executable (generic) (10523/12/4)
7.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
5.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.9% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
400
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
31e1c395cf3662749751a3c26bfb48d8c02c68270f24c8267d38f203318c0f8f.exe
Verdict:
No threats detected
Analysis date:
2024-07-10 13:18:00 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/91776a69-5c97-4a83-989d-9bb5b8bd7e44

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.AutoIt.1410.8397.20180.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
89.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=668e85d3aed99070ed821f16win10vpnfull_triage
Tags:
s h e l l c o d e c r y p t e r
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
autoit epmicrosoft_visual_cc fingerprint keylogger lolbin masquerade microsoft_visual_cc shell32
Link:
https://www.filescan.io/uploads/668e85de66a530fc183964bd/reports/70e74481-29b6-455d-ae1e-56b63b818826/overview
Verdict:
Malicious
Labled as:
Trojan.Dnldr28
Link:
https://www.hybrid-analysis.com/sample/31e1c395cf3662749751a3c26bfb48d8c02c68270f24c8267d38f203318c0f8f
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/fecff3e7-835d-4be1-99cc-ccc6050d42fb
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1470827
Signature
AI detected suspicious sample
Binary is likely a compiled AutoIt script file
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/31e1c395cf3662749751a3c26bfb48d8c02c68270f24c8267d38f203318c0f8f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/31e1c395cf3662749751a3c26bfb48d8c02c68270f24c8267d38f203318c0f8f/
Threat name:
Win32.Trojan.Strab
Create hunting rule
Status:
Malicious
First seen:
2024-07-10 10:43:51 UTC
File Type:
PE (Exe)
Extracted files:
29
AV detection:
21 of 36 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ghq4hfopgzrhjf2rupbgx62i3dacy2bhb4smqjt5hdzagmmmb6hq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/240710-p8mqla1fpb/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/31e93dbb-c64d-4b41-b55b-8c7e36fa95cd
Unpacked files
SH256 hash:
82aaf7fc337289a31a46863c78a86818c2c85d635233ac85d5c2c77802dadf27
MD5 hash:
3d063e63d2553a81c39fd6de45bb8ae9
SHA1 hash:
4822f23659bcb72c54bcdfafc675cd5f1536ee72
Detections:
win_formbook_g0
Create hunting rule
win_formbook_w0
Create hunting rule
Link:
https://www.unpac.me/results/f30a36ef-60c0-46e8-b978-dcf2e4e06a54/
Parent samples :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 hash:
7de9d50c5f6d54430bee2227e2fcd43dea95ca330cc62d020f8949e292ceca17
MD5 hash:
4fd4a8eca14ff15074e60f569ebe26f9
SHA1 hash:
1f38b46c0171bdbff9378f3c043aa578761ce20b
Link:
https://www.unpac.me/results/f30a36ef-60c0-46e8-b978-dcf2e4e06a54/
SH256 hash:
31e1c395cf3662749751a3c26bfb48d8c02c68270f24c8267d38f203318c0f8f
MD5 hash:
ba412d249d252f56cab5ff86072cd42e
SHA1 hash:
3db0e79ca69c0292bcc071c7959925b06c392ed6
Detections:
AutoIT_Compiled
Create hunting rule
SUSP_Imphash_Mar23_3
Create hunting rule
Link:
https://www.unpac.me/results/f30a36ef-60c0-46e8-b978-dcf2e4e06a54/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/31e1c395cf36/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/31e1c395cf3662749751a3c26bfb48d8c02c68270f24c8267d38f203318c0f8f

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:SUSP_Imphash_Mar23_3
Create hunting rule
Author:Arnim Rupp (https://github.com/ruppde)
Description:Detects imphash often found in malware samples (Maximum 0,25% hits with search for 'imphash:x p:0' on Virustotal) = 99,75% hits
Reference:Internal Research

File information

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

Malspam

Formbook

Executable exe 31e1c395cf3662749751a3c26bfb48d8c02c68270f24c8267d38f203318c0f8f

(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::CopyFileExW
KERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
IPHLPAPI.DLL::IcmpCreateFile
KERNEL32.dll::CreateFileW
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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