MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8a3083e40b8b6e20a01e97c759497c064db9d380a7fb2bcb3840b885c755b309. 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


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8a3083e40b8b6e20a01e97c759497c064db9d380a7fb2bcb3840b885c755b309
SHA3-384 hash: 3535ee96694fc2f363fccfd02d2375c29c692d8c2bb4a5946839dcdd2fe4d1f7742ebf792dab59fcfc40afc88d4fe54e
SHA1 hash: 87bff580bb73d19e9fbdb23305d3b711947fbc12
MD5 hash: 025278c31867698add4242b5d284b636
humanhash: beer-mars-bulldog-july
File name:SecuriteInfo.com.W32.AIDetectNet.01.9490.17938
Download: download sample
Signature Formbook
Create hunting rule
File size:626'688 bytes
First seen:2022-04-27 16:34:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:lKJSm9dmPLWJeue2W/L7rfUHPrC7gC3OlTbUKkRDBa:HmjmzQ/zMrsvO7go+pYBa
Threatray 15'682 similar samples on MalwareBazaar
TLSH T112D4F110BB7ADF02D3AA1733D4D5460047B0EA02E417EB5F7AD292E50D43B5B9A12F9B
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 69dca0e8e8e0c448 (22 x AgentTesla, 8 x SnakeKeylogger, 6 x Loki)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
275
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/267270/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.9490.17938.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe msbuild.exe obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/626970ba5c1970f8bbdf3924/reports/96c0885a-0481-4617-a5a3-9bb67d8b2bfb/overview
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8faf74cb-f6a5-4b7e-ac7d-7e072a282bfe
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/984216
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/8a3083e40b8b6e20a01e97c759497c064db9d380a7fb2bcb3840b885c755b309/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-04-27 16:35:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
14 of 26 (53.85%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0b547b6fbd2328c64aab9806e3617ec953098db3af45a2546697d9ca7ee838c9
Formbook
0da36b7f7e4b44b640ab5769532fdd7599032ca2b1d6b57807ba48ad1fa76780
Formbook
5d407049f81d3b75bf2d9eb7dc14662f533b1ca37d283e5ef50e001a7ac1f758
Formbook
5f5195f363ef21135a5b5298c2a3576bd03125eec094d769b25296eb0a2605b9
Formbook
7b4c1bf9a15a419080fe02866aa26f162f79d5e01763c6af5915b07988556223
Formbook
86df15ac78abc1d224a4249db72d29dcb2979fd0669a15c0d291e47648dc0c1c
Formbook
9e4e02725cde43b4da85cdf054b11ad0e4a622bb54f4a967b1634ebcaea9666a
Formbook
a2067ce6f40be6dee1fa10c0155582a43e4b4d5b4bfe1fcf7f239332534b7109
Formbook
cfd1a77378decd68cd7a59307b77b93247bdd91e00de5111ecae6b5658c8665f
Formbook
d00c073d20fa9d33eb8326798f0853be03a7f13e33bae3ce4c25c44bf25040f4
Formbook
+ 15'672 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:siop loader rat
Link:
https://tria.ge/reports/220427-t3ng6adbf5/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
544001b7b35f8db52099ff63d8e65a1809aa5d3f3c7cf031e684819c55eae76f
MD5 hash:
8846af3b243066bfd60ac33eaec41e49
SHA1 hash:
81750f9c112a094b197c4d3823071484bd0957ba
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/c45656e8-108e-4180-8353-b60526ec4386/
SH256 hash:
92fc621e886ad486195efe1b074a5186c27599e3dd4d71c72cae3078b8660ae2
MD5 hash:
e80503550a2aa077f62f09c7dc6be7e4
SHA1 hash:
f93e86c149eac50b611a1f9a7b59f5d81026262c
Link:
https://www.unpac.me/results/c45656e8-108e-4180-8353-b60526ec4386/
SH256 hash:
0b3cd6ee161b3071e02e0d42dcdd0c43ac47aea1451a25d799ba9d27492d5a51
MD5 hash:
cacd6a6eb7b22c353d3546950235517c
SHA1 hash:
5e5877cfebe98940c899d8e062e4b68d89bd840a
Link:
https://www.unpac.me/results/c45656e8-108e-4180-8353-b60526ec4386/
SH256 hash:
7c84ad36161853c46bcd7ef66b27c6b8216d2d5cad8039e67b941895aca23dd2
MD5 hash:
b682f9207d52973dee27f15c76595f64
SHA1 hash:
42ea88ae015556b02037ea69e805ef28534c9b18
Link:
https://www.unpac.me/results/c45656e8-108e-4180-8353-b60526ec4386/
SH256 hash:
8a3083e40b8b6e20a01e97c759497c064db9d380a7fb2bcb3840b885c755b309
MD5 hash:
025278c31867698add4242b5d284b636
SHA1 hash:
87bff580bb73d19e9fbdb23305d3b711947fbc12
Link:
https://www.unpac.me/results/c45656e8-108e-4180-8353-b60526ec4386/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8a3083e40b8b/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/8a3083e40b8b6e20a01e97c759497c064db9d380a7fb2bcb3840b885c755b309

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/267270/

Comments