MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2b39f12db508039d209f6d89398822ca95c741e64516ed0226aae0dbb728740c. 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: 2b39f12db508039d209f6d89398822ca95c741e64516ed0226aae0dbb728740c
SHA3-384 hash: 152634ff6bd583231490408a6dd7e8d4cfa73f84b0386242cb5996dfbde55d0ddff0555b486305e8e1a105d1eed2a50a
SHA1 hash: 2193c593efe9e7bad401dcab57796b169dec10cd
MD5 hash: 89bdbc54aa0786f9fcaeb9e8b47a5a80
humanhash: victor-alanine-floor-friend
File name:file.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:506'384 bytes
First seen:2023-07-03 08:00:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 12288:06xe3QCP+KX5As4lnlvh+bfg24TwGHSirutJC1Hvc1eCuiH15NyO:EQCP+KX5As4lnlvhQYDTweSiru661Due
Threatray 42 similar samples on MalwareBazaar
TLSH T18AB4F1384784EDD4E5D8913DE6ADED7C8672817BB107DF253AA013E61ED1780AB08A4B
TrID 44.4% (.EXE) Win64 Executable (generic) (10523/12/4)
21.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
245
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file.exe
Verdict:
Malicious activity
Analysis date:
2023-07-03 08:00:55 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/6f69d65b-cdfe-41d3-a55d-1f18df423b7e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/405735/
Detection(s):
Win.Packed.Formbook-9980347-1
Create hunting rule

Win.Packed.Cerbu-9993871-0
Create hunting rule

Win.Dropper.Formbook-9993903-0
Create hunting rule

Win.Packed.Generic-6680913-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Blocking the User Account Control
Forced shutdown of a system process
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmstp koivm lolbin overlay packed packed
Link:
https://www.filescan.io/uploads/64a2803e51710bcd8d43ee1c/reports/64d93b6f-9c17-499f-a69a-2a3e2265dc7f/overview
Verdict:
Malicious
Labled as:
Trojan.E1CAE469
Link:
https://www.hybrid-analysis.com/sample/2b39f12db508039d209f6d89398822ca95c741e64516ed0226aae0dbb728740c
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ea87e14f-e1a9-4830-b378-eb70efd2d53f
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
expl.evad.troj
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1266163
Signature
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Disables UAC (registry)
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected FormBook
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1266163 Sample: file.exe Startdate: 03/07/2023 Architecture: WINDOWS Score: 100 23 Malicious sample detected (through community Yara rule) 2->23 25 Multi AV Scanner detection for submitted file 2->25 27 Yara detected FormBook 2->27 29 4 other signatures 2->29 7 file.exe 1 4 2->7         started        process3 file4 21 C:\Users\user\AppData\Local\...\file.exe.log, CSV 7->21 dropped 31 Writes to foreign memory regions 7->31 33 Adds a directory exclusion to Windows Defender 7->33 35 Disables UAC (registry) 7->35 37 Injects a PE file into a foreign processes 7->37 11 powershell.exe 16 7->11         started        13 jsc.exe 7->13         started        15 aspnet_compiler.exe 7->15         started        17 2 other processes 7->17 signatures5 process6 process7 19 conhost.exe 11->19         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2b39f12db508039d209f6d89398822ca95c741e64516ed0226aae0dbb728740c/
Threat name:
ByteCode-MSIL.Trojan.Dotrunpex
Create hunting rule
Status:
Malicious
First seen:
2023-07-03 08:01:05 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
3
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fm47clnvbabz2ie7nwettcbczkk4oqpgiulo2argvlqnxnzioqga._file
Verdict:
malicious
Similar samples:
37efec4c9df42e2a53f73a9923a8e9a1154a790dc5316ec875b5b7640f27d294
Formbook
3956c21824bc18caca2523381ce3fa113e40d5e7f47bf2a05d65f2a1a27a3f1d
Formbook
3e24e97aba6e7432395abc346ee3484b9dbadbe803a046a84ea41529d6ed8c89
Formbook
5e273d27c320b4ba9da91dedaa66ba91cb6ac05fa2195096a2b85e9954e981c0
Formbook
752cd9b98abfd8737d90c300de0ffb7c471a0b94a8a6f870931a7d69ac424281
Formbook
754794ccb5c349adb0551759cc1cd6add14616a50b5b3ffe1b4c0d133d13f300
Formbook
7e5db4d74733c673a834aed6ad6e3e312444d8d89974ed47482762ec2f364c8e
Formbook
9b6573b930e72d319ef4efa0975ff1b59673f96633a03d5e338bc8d7418418f4
Formbook
ac8608bc5b4c0f07e986efa1965ea77825ef430b4c7699e569a43877aeebc6a5
Formbook
cd15fbc9e839dbc2888b3e72c47827e09a8bc50038a509f138c266ebcf2f3ed6
Formbook
+ 32 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
evasion trojan
Link:
https://tria.ge/reports/230703-jwjkhsfe62/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Checks computer location settings
Uses the VBS compiler for execution
Windows security modification
UAC bypass
Windows security bypass
Unpacked files
SH256 hash:
2b39f12db508039d209f6d89398822ca95c741e64516ed0226aae0dbb728740c
MD5 hash:
89bdbc54aa0786f9fcaeb9e8b47a5a80
SHA1 hash:
2193c593efe9e7bad401dcab57796b169dec10cd
Link:
https://www.unpac.me/results/c9837039-6072-490b-94fa-0095045d4f55/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2b39f12db508/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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:BAZT_B5_NOCEXInvalidStream
Create hunting rule
Rule name:SUSP_EXE_in_ISO
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects ISO files that contains an Exe file. Does not need to be malicious
Reference:Internal Research

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/405735/

Comments