MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4cac61484c84732dbe188caa0a13f8a688299c46a9d689b4b90fc76f299fe8d1. 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: | 4cac61484c84732dbe188caa0a13f8a688299c46a9d689b4b90fc76f299fe8d1 |
|---|---|
| SHA3-384 hash: | 3e31d7d7125c73f472ca3b92f096e9b6ea441f4c4588bfc969f27cdfc520095eff053513b083a6ad85a5234ea134adaf |
| SHA1 hash: | c00368c6344a13bdbcef92abd262dcd5d81518e7 |
| MD5 hash: | 8a7ee9dbd620232871c7ce897fcb14e9 |
| humanhash: | hotel-sink-echo-monkey |
| File name: | 8a7ee9dbd620232871c7ce897fcb14e9 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 647'680 bytes |
| First seen: | 2023-11-25 02:07:19 UTC |
| Last seen: | 2023-11-25 03:16:48 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger) |
| ssdeep | 12288:OqHoHYIuvBgrbZowiHcVT697qYnf+d+bozmnZB8KNWS6sSM2wfGyPKeCLS+OUij:OqIHYIuvBgfqt8V12WCZB8KcPs7RyLSz |
| TLSH | T190D423F8F2E89217CF8D53F678D0985683F2DF225200CE8B6F2678489D52B0B9D11967 |
| 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 | b269ccaab2dc69b2 (3 x AgentTesla, 2 x Formbook, 1 x AsyncRAT) |
| Reporter |  zbetcheckin |
| Tags: | 32 exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
375
Origin country :
FRVendor Threat Intelligence
Malware family:
kelihos
ID:
1
File name:
New Text Document.bin.zip
Verdict:
Malicious activity
Analysis date:
2023-11-25 12:08:37 UTC
Tags:
opendir loader kelihos trojan rat njrat bladabindi stealer stealc xworm netwire formbook xloader amadey botnet arechclient2 backdoor evasion systembc proxy lumma redline lokibot socks5systemz metasploit gcleaner spyware agenttesla asyncrat raccoon recordbreaker
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
Searching for the window
Creating a window
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:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
packed
Verdict:
Malicious
Labled as:
Trojan.Generic
Result
Verdict:
MALICIOUS
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
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 domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Snort IDS alert for network traffic
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.AgentTesla
Status:
Malicious
First seen:
2023-11-21 09:02:02 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
20 of 23 (86.96%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
c4db24ba598dcc15e458176c4023931cd2b9957716ddf7ffb5af74ce07c98355
MD5 hash:
41bbdbcd06093931a1bc4a6fa411b869
SHA1 hash:
dbc72399ebdb63539d34c63f743c41ff4c8dcaea
SH256 hash:
d77dc3dbf2bcee738adc6a1c0ba1d512e1aaef9a9af0c6c724ee6c2dc2174274
MD5 hash:
368252a4ea25fb3f02788cd1acd219a6
SHA1 hash:
272c0533896a4cb37b73d498ecf17cd451b4a703
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
SH256 hash:
f317000292e9c8fe0e0e5c820ced3cb9b709878453d764c6b6c45e334fdd723d
MD5 hash:
e1823b2419602721a5fe21feba10968a
SHA1 hash:
b7615abcfd5f7da0aa548121b02a8742f92a4c7d
SH256 hash:
aace33ad944fe4d7f541b54f91b6d839c3fe412ae950dc3d21a66f0058759860
MD5 hash:
6cd9152f948e9ba4fd16502a505dc75e
SHA1 hash:
a18e6d3fffdbd2e27ab0e13bf01609b7c5b3ee6d
SH256 hash:
4cac61484c84732dbe188caa0a13f8a688299c46a9d689b4b90fc76f299fe8d1
MD5 hash:
8a7ee9dbd620232871c7ce897fcb14e9
SHA1 hash:
c00368c6344a13bdbcef92abd262dcd5d81518e7
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.96
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: | Formbook |
|---|---|
| Author: | kevoreilly |
| Description: | Formbook Payload |
| Rule name: | maldoc_getEIP_method_1 |
|---|---|
| Author: | Didier Stevens (https://DidierStevens.com) |
| Rule name: | meth_get_eip |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | meth_stackstrings |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | NETexecutableMicrosoft |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | pe_no_import_table |
|---|---|
| Description: | Detect pe file that no import table |
| Rule name: | RIPEMD160_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for RIPEMD-160 constants |
| Rule name: | SHA1_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA1 constants |
| Rule name: | shellcode |
|---|---|
| Author: | nex |
| Description: | Matched shellcode byte patterns |
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | Windows_Trojan_Formbook |
|---|---|
| Author: | @malgamy12 |
| Rule name: | Windows_Trojan_Formbook_1112e116 |
|---|---|
| Author: | Elastic Security |
| Rule name: | win_formbook_w0 |
|---|---|
| Author: | @malgamy12 |
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
Comments
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