MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4efc9ad66b0d09b4e5ddae9e2c02bd112cb6e8cb7e9881969f231a10768b558f. 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 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4efc9ad66b0d09b4e5ddae9e2c02bd112cb6e8cb7e9881969f231a10768b558f
SHA3-384 hash: a41d6d8cc75b9dc219fe7a828351590e2362cf6b9ca2fdc650093c7c9f3b82a360980517b59568642ab1101004d4cb74
SHA1 hash: 28d6dbd400822758b88d503c10cb58f7935ab85f
MD5 hash: f691dc5e941a39ff7a0ebce813237338
humanhash: charlie-mike-fix-monkey
File name:REVİZE EDİLMİŞ TEKLİF VE SATIN ALMA EMRİ.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:958'976 bytes
First seen:2024-01-12 08:47:15 UTC
Last seen:2024-01-12 10:18:26 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:UebOXc9TquTevX+ay7s6vXFNEMRDqj8uKWKGp2ribui8Q1W:Fcc9TXamsQFNEbj8QKiYA8Q1
TLSH T13C156DD1F150C896ED6B06F16D3BA53015A37E9D94A4810C5AAEBB1B76F3342209FE0F
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)
dhash icon eeacac8cb6e2ba86 (561 x SnakeKeylogger, 142 x AgentTesla, 40 x Formbook)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
425
Origin country :
DE DE
Vendor Threat Intelligence
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
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Malicious
Labled as:
Ransom.Loki.Generic
Link:
https://www.hybrid-analysis.com/sample/4efc9ad66b0d09b4e5ddae9e2c02bd112cb6e8cb7e9881969f231a10768b558f
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/3983e509-74ce-4728-bddf-b1e83ef83206
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1373571
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Contains functionality to capture screen (.Net source)
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4efc9ad66b0d09b4e5ddae9e2c02bd112cb6e8cb7e9881969f231a10768b558f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4efc9ad66b0d09b4e5ddae9e2c02bd112cb6e8cb7e9881969f231a10768b558f/
Threat name:
Win32.Ransomware.Loki
Create hunting rule
Status:
Malicious
First seen:
2024-01-12 06:50:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
30
AV detection:
15 of 37 (40.54%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=j36jvvtlbue3jzo5v2pcyav5cewln2glp2midfu7emnba5ulkwhq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/240112-kqe6ksdff7/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Unpacked files
SH256 hash:
a99197a2e3f477d15802a9b2250a01f7cd2be8ed435141a4e280307f2a7f2b7a
MD5 hash:
9ac50796df27f8b3977d71000d15927c
SHA1 hash:
dcf769debf4522b0800188ab9cbef26d1dbe8aed
Link:
https://www.unpac.me/results/221aeae9-8e21-4057-a90a-fb38eda0b8c5/
SH256 hash:
05c701e796567a98afd664481f2667abff69a58a6d8ad3af7616a27cc4f36ed4
MD5 hash:
4b462faff3377bfbfc79fa40c9e87b60
SHA1 hash:
f719f9c1dd83df22a212ac700cd56e20e7fd892c
Link:
https://www.unpac.me/results/221aeae9-8e21-4057-a90a-fb38eda0b8c5/
SH256 hash:
9f559fbcf5ec33b908b3e86e6529916979cf10fd9d5c16738f5a9282009675b9
MD5 hash:
f592f4c408cf65860d3a95e3dc787a75
SHA1 hash:
93f1b50ae9b559c25a3bc7a592b4517a6cab79e6
Link:
https://www.unpac.me/results/221aeae9-8e21-4057-a90a-fb38eda0b8c5/
SH256 hash:
21afe82a0b71ee589c26f32dc88e0a6e22817f21194b2a83f1807c6cecc8c818
MD5 hash:
440bb4db146ccb1161ac2bcf365d7676
SHA1 hash:
506eda511b46df6e95d86861e70fda81307f8623
Link:
https://www.unpac.me/results/221aeae9-8e21-4057-a90a-fb38eda0b8c5/
SH256 hash:
73a2c0ad5fa8f5edf70f63786614018ae3204643256ddf21bfc4ec6974c93987
MD5 hash:
a632e1d9f3872437046f49badabc9435
SHA1 hash:
ee21b7ce3fa5f1b5a5708cc513a6b90f7ccb5816
Link:
https://www.unpac.me/results/221aeae9-8e21-4057-a90a-fb38eda0b8c5/
SH256 hash:
9f3ba3c2ddb97aba4773e58727e6530e0a7a1d822a9b60ed4c5383726a32de3e
MD5 hash:
b899a4e2a2644e7bfc8efa7ddbbaee8e
SHA1 hash:
d63a7ee623356be15394e014d124e59872114a3a
Link:
https://www.unpac.me/results/221aeae9-8e21-4057-a90a-fb38eda0b8c5/
SH256 hash:
c64c25103a856b227a738291c0db2148e4f958745c715d4d477f3f73982f10fd
MD5 hash:
6ce3915f5e7ac7d3946b03c760df7108
SHA1 hash:
86ce7bc97c19c528b3e63c833c9e67198a64ab53
Link:
https://www.unpac.me/results/221aeae9-8e21-4057-a90a-fb38eda0b8c5/
SH256 hash:
873b79aba3dea8cf3a0f80c8dd9a8dfd8b7b672d15a845b821c76deabedf4a72
MD5 hash:
b22dfa09b9d28307144083de35af737e
SHA1 hash:
8504ad2ebd3f878cc26e783fffe3fe7249bbfae5
Link:
https://www.unpac.me/results/221aeae9-8e21-4057-a90a-fb38eda0b8c5/
SH256 hash:
fa9d0c9703fc46ff305782086e0c0aa33ba328a90592dcb64981357e266ab999
MD5 hash:
5e3dbd91ccc3062cb03362f1399372dc
SHA1 hash:
5713534bd61a3364bb98cf5bdf683550a314346b
Link:
https://www.unpac.me/results/221aeae9-8e21-4057-a90a-fb38eda0b8c5/
SH256 hash:
4c8636288f40dd29e7f6ab39b683257cde5b975496ebfce16fb07941f0814133
MD5 hash:
1bee74b8f8fa83de5d039c010b17a3d3
SHA1 hash:
3c2d11c7a7b105287db7cffc6b621bd27c5b7e3c
Link:
https://www.unpac.me/results/221aeae9-8e21-4057-a90a-fb38eda0b8c5/
SH256 hash:
4efc9ad66b0d09b4e5ddae9e2c02bd112cb6e8cb7e9881969f231a10768b558f
MD5 hash:
f691dc5e941a39ff7a0ebce813237338
SHA1 hash:
28d6dbd400822758b88d503c10cb58f7935ab85f
Link:
https://www.unpac.me/results/221aeae9-8e21-4057-a90a-fb38eda0b8c5/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4efc9ad66b0d09b4e5ddae9e2c02bd112cb6e8cb7e9881969f231a10768b558f

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
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:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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 4efc9ad66b0d09b4e5ddae9e2c02bd112cb6e8cb7e9881969f231a10768b558f

(this sample)

  
Delivery method
Distributed via e-mail attachment

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