MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b51301458382fec98cc0312e1849937ff1294f9aa86de165356c5c0207ec85ce. 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 4 File information Comments

SHA256 hash: b51301458382fec98cc0312e1849937ff1294f9aa86de165356c5c0207ec85ce
SHA3-384 hash: 4f0a145672d0218141d337c5c2335deeac31d00e840de81101ccea7b482ed0f01ef731bdeafcc6b79aef9e03d4c3cdf9
SHA1 hash: adcd8cd998f55f75bcc0999f10d98cd1bbe568a2
MD5 hash: 5a5203a27db662eca103556a4eda84fd
humanhash: steak-video-four-oregon
File name:OSLA24090177 & OSLA24090178pdf.exe
Download: download sample
Signature Formbook
File size:1'065'839 bytes
First seen:2024-09-22 15:32:49 UTC
Last seen:2024-09-24 09:30:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 890e522b31701e079a367b89393329e6 (25 x Formbook, 12 x AgentTesla, 8 x Loda)
ssdeep 24576:tthEVaPqLsvEvt32gWuGH4N5a64qygxcuxl/fIz6KUtYRN:VEVUcxV8Hw5a9qyml4WVYz
TLSH T15535338E617A7A09E46022B5D24A174341A0F836977DCF1B7393EF5B6DAF01A7D2034E
TrID 86.7% (.EXE) AutoIt3 compiled script executable (510622/80/67)
4.5% (.EXE) UPX compressed Win32 Executable (27066/9/6)
4.5% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4)
1.1% (.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 abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
360
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
OSLA24090177 & OSLA24090178pdf.exe
Verdict:
Malicious activity
Analysis date:
2024-09-22 15:37:09 UTC
Tags:
upx autoit

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
Encryption Malware Monitor Autoit
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
autoit lolbin microsoft_visual_cc overlay packed packed packed shell32 upx
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Signature
Found direct / indirect Syscall (likely to bypass EDR)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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
Queues an APC in another process (thread injection)
Switches to a custom stack to bypass stack traces
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Autoitinject
Status:
Malicious
First seen:
2024-09-19 03:41:44 UTC
File Type:
PE (Exe)
Extracted files:
54
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
unknown_loader_036 formbook admintool_powerrun
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery upx
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
AutoIT Executable
Suspicious use of SetThreadContext
UPX packed file
Verdict:
Suspicious
Tags:
trojan
YARA:
MAL_Malware_Imphash_Mar23_1
Unpacked files
SH256 hash:
4c2577a2d4c010889c398d507df3e5f1df2c96adac8d845f5c830e1e22278dfd
MD5 hash:
9f4a5f8e746c04dae18d00c71024734c
SHA1 hash:
8f348813cfa6c5c5dcc8c62d2e30d0de525564ad
Detections:
win_formbook_g0 win_formbook_w0
SH256 hash:
3a6e1c87ac66a360a72130719c3540b90418957e9b10bd535fe31f0204707df6
MD5 hash:
1a6835cc8b1e5777cc53b94780e7e846
SHA1 hash:
416a70ce8e1145908241086104aeb8c63e5f1a10
SH256 hash:
708ed39ec646a809acda81597f29566231d2f26264ae249cdb50a6f1fa201aa9
MD5 hash:
213a418928ca27fc29fbea7949fd8ad4
SHA1 hash:
02b12631baacc5ab7941b1ef7b046ff70eb81ac8
Detections:
AutoIT_Compiled
SH256 hash:
b51301458382fec98cc0312e1849937ff1294f9aa86de165356c5c0207ec85ce
MD5 hash:
5a5203a27db662eca103556a4eda84fd
SHA1 hash:
adcd8cd998f55f75bcc0999f10d98cd1bbe568a2
Detections:
MAL_Malware_Imphash_Mar23_1
Please note that we are no longer able to provide a coverage score for Virus Total.

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:MAL_Malware_Imphash_Mar23_1
Author:Arnim Rupp
Description:Detects malware by known bad imphash or rich_pe_header_hash
Reference:https://yaraify.abuse.ch/statistics/
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Author:malware-lu
Rule name:UPXv20MarkusLaszloReiser
Author:malware-lu
Rule name:upx_largefile
Author:k3nr9

File information


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

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::GetAce
MULTIMEDIA_APICan Play MultimediaWINMM.dll::timeGetTime
WIN_BASE_APIUses Win Base APIKERNEL32.DLL::LoadLibraryA

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