MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b884c2251b7291036331d340c2ec96842d198e858cf1e8cbca7b80bf95a75727. 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: 10
| SHA256 hash: | b884c2251b7291036331d340c2ec96842d198e858cf1e8cbca7b80bf95a75727 |
|---|---|
| SHA3-384 hash: | 2f53b4008ca403d24056beefd7a17714ed89cbcdcc4e8e5cc63d0bf867e9185fe68ed039be81a9900d195d307f3305e7 |
| SHA1 hash: | 66424afb9d4832e769ea410486669a42d48728cc |
| MD5 hash: | a17a049127ed50b05c2fb5f0a695270f |
| humanhash: | cardinal-yellow-idaho-social |
| File name: | BJKH87.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 26'688 bytes |
| First seen: | 2023-08-08 13:18:48 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 384:pygHothpNyb8E9VF6IYiTPxXtFRMORF8tIYiztFRMOywrjTkJ8JN77hhl5:py0ortEpYiTPxdFPYi5Fqwnd3hT5 |
| Threatray | 3'488 similar samples on MalwareBazaar |
| TLSH | T1C0C29D638B542C26EE478E7070E5C639AF70B3915DD1C6DB301AC2569F853826FA81FD |
| TrID | 28.5% (.EXE) Win64 Executable (generic) (10523/12/4) 17.8% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 13.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 12.2% (.EXE) Win32 Executable (generic) (4505/5/1) 5.6% (.EXE) Win16/32 Executable Delphi generic (2072/23) |
| Reporter |  lowmal3 |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
278
Origin country :
DEVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO#4502178074.7z
Verdict:
Malicious activity
Analysis date:
2023-08-08 12:54:19 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Creating a file
Forced shutdown of a system process
Unauthorized injection to a system process
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
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:
Suspicious
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
84 / 100
Signature
Allocates memory in foreign processes
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
PE file has nameless sections
Snort IDS alert for network traffic
Writes to foreign memory regions
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2023-08-08 08:18:04 UTC
AV detection:
21 of 24 (87.50%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 3'478 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
b884c2251b7291036331d340c2ec96842d198e858cf1e8cbca7b80bf95a75727
MD5 hash:
a17a049127ed50b05c2fb5f0a695270f
SHA1 hash:
66424afb9d4832e769ea410486669a42d48728cc
Verdict:
Malicious
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: | INDICATOR_EXE_Packed_ConfuserEx |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables packed with ConfuserEx Mod |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | pe_imphash |
|---|
| Rule name: | PE_Potentially_Signed_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | win_delivery_check_g0 |
|---|
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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