MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 fcb81b7e03763011975b1381444933c091ed58d8bbe4741b68f994dbe288d72a. 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: 8
| SHA256 hash: | fcb81b7e03763011975b1381444933c091ed58d8bbe4741b68f994dbe288d72a |
|---|---|
| SHA3-384 hash: | 7f2dd453ef09d72855f336549e481b4ecae1d26df444d2c32da2d69682ce3dd6598eadc504958defc1abec8e865ea2f2 |
| SHA1 hash: | de880b21096c0b7338f8302c998d6faf29b18d5b |
| MD5 hash: | 758832b759363ef7cede25938706a993 |
| humanhash: | lake-nuts-social-floor |
| File name: | ZOuafc421V.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 1'587'200 bytes |
| First seen: | 2023-02-18 09:24:50 UTC |
| Last seen: | 2023-02-18 10:30:37 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| ssdeep | 49152:6bUutV0yQAP+exa6P9xICuZKnJ6CV6ZRwA015Tdy+:6b3tG3AP+Ia6P9xICsUkCV2wAK |
| Threatray | 1'127 similar samples on MalwareBazaar |
| TLSH | T13D75BE5ED5B35F8FD2694A38940E0E023026C3C699BDDB496A9BED3C319458FE379231 |
| TrID | 44.4% (.EXE) Win64 Executable (generic) (10523/12/4) 21.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 8.7% (.ICL) Windows Icons Library (generic) (2059/9) 8.5% (.EXE) OS/2 Executable (generic) (2029/13) 8.4% (.EXE) Generic Win/DOS Executable (2002/3) |
| Reporter |  0xToxin |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
222
Origin country :
ILVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ZOuafc421V.exe
Verdict:
No threats detected
Analysis date:
2023-02-18 09:40:02 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Creating a file
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
Searching for synchronization primitives
Unauthorized injection to a recently created process
Launching the default Windows debugger (dwwin.exe)
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
packed
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Suspicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Injects a PE file into a foreign processes
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)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Spyware.Noon
Status:
Malicious
First seen:
2023-02-18 08:12:48 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
121
AV detection:
12 of 25 (48.00%)
Threat level:
2/5
Detection(s):
Suspicious file
Verdict:
unknown
Similar samples:
+ 1'117 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
7/10
Tags:
n/a
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Uses the VBS compiler for execution
Unpacked files
SH256 hash:
fcb81b7e03763011975b1381444933c091ed58d8bbe4741b68f994dbe288d72a
MD5 hash:
758832b759363ef7cede25938706a993
SHA1 hash:
de880b21096c0b7338f8302c998d6faf29b18d5b
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.50
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: | BitcoinAddress |
|---|---|
| Author: | Didier Stevens (@DidierStevens) |
| Description: | Contains a valid Bitcoin address |
| Rule name: | pdb_YARAify |
|---|---|
| Author: | @wowabiy314 |
| Description: | PDB |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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