MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b3a50f27f037fc524303604335c490550752f7eb426553a73b12b8ada3d2f892. 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: 13
| SHA256 hash: | b3a50f27f037fc524303604335c490550752f7eb426553a73b12b8ada3d2f892 |
|---|---|
| SHA3-384 hash: | a1c2c8b694f3e894750de613d1336f59be8363e60fdf8cb62b7bf13e91af76202bcd45cd5a6f2cb0d17e569d5b8015cf |
| SHA1 hash: | 1907b0064948af7e7adf84bb259cfa7fdb4acc41 |
| MD5 hash: | 813a4c29188583d9f402526a772cbffa |
| humanhash: | grey-grey-nevada-coffee |
| File name: | 813a4c29188583d9f402526a772cbffa.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 627'712 bytes |
| First seen: | 2023-11-13 17:29:13 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger) |
| ssdeep | 12288:l0V5g+fiPYUSKpye4PWgetQtw88l9/YOLa7CDgUb3QpmU6/X+LfuLSy9pXrTh6a:lwOYrKsZ4La7CDgIDU6/OLGLSy9Bvh6a |
| Threatray | 155 similar samples on MalwareBazaar |
| TLSH | T1D0D41244BBFD9B25E9BEB1BA5972231C07316D4A2931F39D0F859839383A7D44B06B31 |
| TrID | 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 11.2% (.SCR) Windows screen saver (13097/50/3) 9.0% (.EXE) Win64 Executable (generic) (10523/12/4) 5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 3.8% (.EXE) Win32 Executable (generic) (4505/5/1) |
| Reporter |  abuse_ch |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
319
Origin country :
NLVendor Threat Intelligence
Detection:
Formbook
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
packed
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.
Malware family:
Formbook
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
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
Performs DNS queries to domains with low reputation
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
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Threat name:
ByteCode-MSIL.Trojan.Taskun
Status:
Malicious
First seen:
2023-11-13 10:56:59 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
19 of 24 (79.17%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 145 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
1ab7ef141bf6cb962178dd726db66ef1b101f5bcabd9f0b9c6b48965ef8ad2b3
MD5 hash:
5a273b8d3f6c762fc1815c0f763e2286
SHA1 hash:
dae6bb051a511db443a3ef5afe9c10298275ce17
SH256 hash:
8569fdcf712a9a1536ea68774c55bf92906ef715ded919f09473ffeeec090515
MD5 hash:
5a1ef60cdf5e8fdd4dd9f77a3bf3d553
SHA1 hash:
d8f6dcc33ef966632cb62213639d1a17b992f782
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
SH256 hash:
9781d54d42848a11ffa7c0690680de17cc447d083a1ae88649c6d459623e82d9
MD5 hash:
3873e32cd128454d67ef7dd265c34eff
SHA1 hash:
691cdfe54c5625e4252aab1b381952c7cff02dcc
SH256 hash:
62757af7ce2dcfe188245dd26d85e233c2ded82311c600c7c8ec83c8c8a071b2
MD5 hash:
804cc8416b7db140f03d251ca3abbf00
SHA1 hash:
1a1160f7db639606a1046b555b08a43035aff960
SH256 hash:
b3a50f27f037fc524303604335c490550752f7eb426553a73b12b8ada3d2f892
MD5 hash:
813a4c29188583d9f402526a772cbffa
SHA1 hash:
1907b0064948af7e7adf84bb259cfa7fdb4acc41
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: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | NETexecutableMicrosoft |
|---|---|
| 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.
Web download
Delivery method
Distributed via web download
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