MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 8a4f3f97105ed3e4700a34f71fa7f6a8cd6be9479cfba9f79cdd08cb112f62ef. 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
| SHA256 hash: | 8a4f3f97105ed3e4700a34f71fa7f6a8cd6be9479cfba9f79cdd08cb112f62ef |
|---|---|
| SHA3-384 hash: | 481385ae5df30e3ce129c7d0a56e7a8acffbb18e5cc3894b87444e025cc5d7b98721d3294f7893ca8f1100ba86a2ff82 |
| SHA1 hash: | 88f777feb5c1e97e4387682369dd7cbc40341700 |
| MD5 hash: | 69978ec052d28f750658bf85e80a894c |
| humanhash: | berlin-hotel-delaware-delaware |
| File name: | CSXB24SOKJED047838 DRAFT.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 1'007'013 bytes |
| First seen: | 2024-09-24 07:11:28 UTC |
| Last seen: | 2024-09-24 09:18:00 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 890e522b31701e079a367b89393329e6 (25 x Formbook, 12 x AgentTesla, 8 x Loda) |
| ssdeep | 24576:tthEVaPqLveDq/cbim1WFgXFN2gbHq7arUtx:VEVUcveDq/cbiK5KOrIx |
| Threatray | 925 similar samples on MalwareBazaar |
| TLSH | T1D62533E68152F463DAE5A139F147D290E0A0E9B57B3772D920249E1714EF200FEE7F89 |
| 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): |  |
| dhash icon | b150b26869b2d471 (468 x Formbook, 101 x RedLineStealer, 94 x AgentTesla) |
| Reporter |  lowmal3 |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
423
Origin country :
DEVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
CSXB24SOKJED047838 DRAFT.exe
Verdict:
No threats detected
Analysis date:
2024-09-24 07:13:43 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Verdict:
Malicious
Score:
90.2%
Tags:
Encryption Autoit Autoit Expl
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
Verdict:
Malicious
Labled as:
Malware
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:
OP Auto Clicker
Verdict:
Suspicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
84 / 100
Signature
AI detected suspicious sample
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:
Score:
98%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Backdoor.FormBook
Status:
Malicious
First seen:
2024-09-24 01:31:56 UTC
File Type:
PE (Exe)
Extracted files:
54
AV detection:
20 of 24 (83.33%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
admintool_powerrun
Similar samples:
+ 915 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
5/10
Tags:
discovery upx
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
UPX packed file
Verdict:
Suspicious
Tags:
trojan
YARA:
MAL_Malware_Imphash_Mar23_1
Unpacked files
SH256 hash:
9d60e9840b8591a2e4aaff2797497475cc25fc803650ac5e95e60b924fcbca40
MD5 hash:
b72e644d764fbb5841e8bf67ec74ecb1
SHA1 hash:
a9a90ef345cd71974a63b732a5fb60dffbfda71d
SH256 hash:
3a6e1c87ac66a360a72130719c3540b90418957e9b10bd535fe31f0204707df6
MD5 hash:
1a6835cc8b1e5777cc53b94780e7e846
SHA1 hash:
416a70ce8e1145908241086104aeb8c63e5f1a10
SH256 hash:
01daef632f533486d0bc91cfc620cdfaa11477724c1801c9028bcde1fdb7ff0d
MD5 hash:
1f7478f5df8de8b3d6677c6b1ebbd2b7
SHA1 hash:
c0c7c8dd88e0ec4c79f518230a05d60407d52473
Detections:
AutoIT_Compiled
SH256 hash:
8a4f3f97105ed3e4700a34f71fa7f6a8cd6be9479cfba9f79cdd08cb112f62ef
MD5 hash:
69978ec052d28f750658bf85e80a894c
SHA1 hash:
88f777feb5c1e97e4387682369dd7cbc40341700
Detections:
MAL_Malware_Imphash_Mar23_1
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
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.
Malspam
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
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (HIGH_ENTROPY_VA) | high |
| CHECK_NX | Missing Non-Executable Memory Protection | critical |
| CHECK_PIE | Missing Position-Independent Executable (PIE) Protection | high |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| AUTH_API | Manipulates User Authorization | ADVAPI32.dll::GetAce |
| MULTIMEDIA_API | Can Play Multimedia | WINMM.dll::timeGetTime |
| WIN_BASE_API | Uses Win Base API | KERNEL32.DLL::LoadLibraryA |
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