MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf9584e32236ebb05f71641930612dffee8a9029881c5ff3a4fc20cd246dadb8. 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: 11


Intelligence 11 IOCs YARA 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bf9584e32236ebb05f71641930612dffee8a9029881c5ff3a4fc20cd246dadb8
SHA3-384 hash: 07c1f5b8cb33d2c6867ee5eb5d90bb6890ec0e7fd8d915ed408955c710eca5e3e9edb9e5caaf9b1177c62c12fe27ca0e
SHA1 hash: 4a6d6c3f277905bf3851293aba1eed717d81b02c
MD5 hash: cecbf0cf5527bf4252418ea951f75339
humanhash: alanine-spaghetti-uncle-utah
File name:27102023_267897635409878.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:824'320 bytes
First seen:2023-10-27 09:21:41 UTC
Last seen:2023-10-27 09:44:28 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:1h/GLZe71KqAFp5vRrDH2dVjxvq1XZysTbJlyA:T/Kc0qAFvvJDHEjxupysa
Threatray 3 similar samples on MalwareBazaar
TLSH T13B05E10EB686EE02C3655633C5D761144B719782A217DA0F7ACA37D50E033AFAD4A6CF
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)
File icon (PE):PE icon
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
350
Origin country :
DE DE
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/456664/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed redcap
Link:
https://www.filescan.io/uploads/653b813c0ca0b01851704f82/reports/18db98af-2b32-4d39-853d-753f1217e2a4/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/bf9584e32236ebb05f71641930612dffee8a9029881c5ff3a4fc20cd246dadb8
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9f3236c3-2297-4832-b7df-d6dca55411ce
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1333180
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1333180 Sample: 27102023_267897635409878.exe Startdate: 27/10/2023 Architecture: WINDOWS Score: 100 26 www.zjdgn.xyz 2->26 28 www.rinconesdetenerife.com 2->28 30 12 other IPs or domains 2->30 46 Multi AV Scanner detection for domain / URL 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus detection for URL or domain 2->50 54 6 other signatures 2->54 10 27102023_267897635409878.exe 3 2->10         started        signatures3 52 Performs DNS queries to domains with low reputation 26->52 process4 signatures5 56 Injects a PE file into a foreign processes 10->56 13 27102023_267897635409878.exe 10->13         started        process6 signatures7 58 Maps a DLL or memory area into another process 13->58 16 qoyzfGTfqlkLAZdacWPEKoVCPVKFdG.exe 13->16 injected process8 process9 18 upnpcont.exe 13 16->18         started        signatures10 38 Tries to steal Mail credentials (via file / registry access) 18->38 40 Tries to harvest and steal browser information (history, passwords, etc) 18->40 42 Writes to foreign memory regions 18->42 44 3 other signatures 18->44 21 qoyzfGTfqlkLAZdacWPEKoVCPVKFdG.exe 18->21 injected 24 firefox.exe 18->24         started        process11 dnsIp12 32 www.cc-applyonline.cfd 64.190.62.22, 49763, 49764, 49765 NBS11696US United States 21->32 34 www.intllogs.com 204.11.56.48, 49767, 49768, 49769 CONFLUENCE-NETWORK-INCVG Virgin Islands (BRITISH) 21->34 36 6 other IPs or domains 21->36
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/bf9584e32236ebb05f71641930612dffee8a9029881c5ff3a4fc20cd246dadb8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bf9584e32236ebb05f71641930612dffee8a9029881c5ff3a4fc20cd246dadb8/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-10-27 09:22:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
17 of 23 (73.91%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=x6kyjyzcg3v3ax3rmqmtayjn77xivebjraof745e7qqm2jdnvw4a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
3f98f70b03b079fcf00f40d8819a849513f391eca65c7a3424687138924c60a9
Formbook
605dc8045830795f0445770f524e12568592d9004296c17fe792f745dff1fab1
Formbook
e8a820b07074384be7c1ffd4f07a230ebce48a21f24a67ed1c0572a6570b2410
Formbook
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/231027-lbwqfsfa76/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
a6e1f3e5efbf868d3b82855960d1055f8b17c8a600c1e9bfb1eb5e7059fcc6b6
MD5 hash:
6bb34694dc8b09b0e18048241fc2ffea
SHA1 hash:
d4a43642006c4f0e1d9326f5b508997f39defbe5
Link:
https://www.unpac.me/results/7734acd0-75ea-41cb-bb70-c2ef20747866/
SH256 hash:
8c81cf78fbc08b4e314c53b79ccbbe947df3eace2b2cd7028075365fa03d7d31
MD5 hash:
0f1faae927cfa8ec015a6a4c9d4054fd
SHA1 hash:
e24022e2b57784396193b2a00d0f4ade706e8b8b
Link:
https://www.unpac.me/results/7734acd0-75ea-41cb-bb70-c2ef20747866/
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/7734acd0-75ea-41cb-bb70-c2ef20747866/
SH256 hash:
2a8017fdd503fafea922ea9e2ebdd7948e8c83f792012a7712b4c386af1a1903
MD5 hash:
0ffc63965b5a4dabaf2c7b4325d5442b
SHA1 hash:
807d89da697a4153c67da85854f75c2d0e76e7c4
Link:
https://www.unpac.me/results/7734acd0-75ea-41cb-bb70-c2ef20747866/
SH256 hash:
1448d31deef7290eb8d5a96a58264bdff02d77fc01af3eee98e78ce84b16addc
MD5 hash:
8cd727426a34ae67c1872b98f2b3e3c0
SHA1 hash:
418deec717d339e5fe3b3e7636babcc03233b571
Link:
https://www.unpac.me/results/7734acd0-75ea-41cb-bb70-c2ef20747866/
SH256 hash:
bf9584e32236ebb05f71641930612dffee8a9029881c5ff3a4fc20cd246dadb8
MD5 hash:
cecbf0cf5527bf4252418ea951f75339
SHA1 hash:
4a6d6c3f277905bf3851293aba1eed717d81b02c
Link:
https://www.unpac.me/results/7734acd0-75ea-41cb-bb70-c2ef20747866/
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:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

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

Malspam

Formbook

Executable exe bf9584e32236ebb05f71641930612dffee8a9029881c5ff3a4fc20cd246dadb8

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/456664/

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