MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 3bf46b302ad2bdd8a31bc171d2bb239a0b3594978f1a9e21815c7adfdf6930cb. 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
| SHA256 hash: | 3bf46b302ad2bdd8a31bc171d2bb239a0b3594978f1a9e21815c7adfdf6930cb |
|---|---|
| SHA3-384 hash: | f85ffdcbf7fb412a5707147bebf423be63cbd7effb46b40115f7b7940ba47907fe78e82e10d404f57a450b79d1b2f985 |
| SHA1 hash: | b67d2ab65f8805a7ac49e8777b5c47dc73c65c20 |
| MD5 hash: | e371fd1288953c8f5a6010384aa9cd3c |
| humanhash: | arkansas-table-blossom-double |
| File name: | r20230925_164108_pdf.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 994'304 bytes |
| First seen: | 2023-09-27 14:20:30 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'642 x Formbook, 12'245 x SnakeKeylogger) |
| ssdeep | 12288:hMy7HxiSbJCN4BPouYkjpvcO4yKEt5HvB1nI:hN7HRbfPouYkjpvf4yKEt5HvB |
| Threatray | 1'197 similar samples on MalwareBazaar |
| TLSH | T147255A51BBE9C957D0AE2BB2E8B04A0427F2EC19A2B2E74F554DB2E41C7B3001D5176F |
| TrID | 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10523/12/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4505/5/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9) |
| File icon (PE): |  |
| dhash icon | 3733676707070002 (1 x AgentTesla, 1 x Formbook) |
| Reporter |  FXOLabs |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
284
Origin country :
BRVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
r20230925_164108_pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-09-27 14:22:01 UTC
Tags:
opendir
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
Сreating synchronization primitives
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Sending an HTTP GET request to an infection source
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
lolbin masquerade packed replace
Verdict:
Malicious
Labled as:
Trojan.Generic
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:
Formbook
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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
Queues an APC in another process (thread injection)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2023-09-26 00:32:40 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
13 of 36 (36.11%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 1'187 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
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Unpacked files
SH256 hash:
3bf46b302ad2bdd8a31bc171d2bb239a0b3594978f1a9e21815c7adfdf6930cb
MD5 hash:
e371fd1288953c8f5a6010384aa9cd3c
SHA1 hash:
b67d2ab65f8805a7ac49e8777b5c47dc73c65c20
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
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: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
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
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