MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e52940dac833cb5b8218350da11adcb63cffd7fecd9fdf82ec6dabdf0c4faa39. 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: 5


Intelligence 5 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e52940dac833cb5b8218350da11adcb63cffd7fecd9fdf82ec6dabdf0c4faa39
SHA3-384 hash: 95bf89e4c2b4688cb2b6b2945738f577615bdb8ef782b067288ed04028717238a44c7858ba95863e656e7342dbd1ed10
SHA1 hash: bf3aa9e5eb9291e08ce11b13cb4330138a68edd8
MD5 hash: 4e53a0a23572d6b5e7d7802bfc69c669
humanhash: eleven-kitten-uncle-charlie
File name:PO_8776363636.iso
Download: download sample
Signature Formbook
Create hunting rule
File size:335'872 bytes
First seen:2023-07-25 13:29:35 UTC
Last seen:Never
File type: iso
MIME type:application/x-iso9660-image
ssdeep 6144:XPr1wvPXluX50zFlPWpk91F8b5xgcAb+DpjDTTu:Xj1wv/8eFBWpIL8b5xxAadTTu
TLSH T1F264D0AC3A1172DFC827C4769DA42CA4AA92B077432B4553B41F65AD9F4F887CF053B2
TrID 99.5% (.NULL) null bytes (2048000/1)
0.2% (.ATN) Photoshop Action (5007/6/1)
0.1% (.ISO) ISO 9660 CD image (2545/36/1)
0.0% (.BIN/MACBIN) MacBinary 1 (1033/5)
0.0% (.ABR) Adobe PhotoShop Brush (1002/3)
Reporter cocaman
Tags:FormBook iso


Avatar
cocaman
Malicious email (T1566.001)
From: "salessss@salescorpstrdes.com" (likely spoofed)
Received: "from box0.salescorpstrdes.com (box0.salescorpstrdes.com [194.180.49.164]) "
Date: "25 Jul 2023 06:18:46 -0700"
Subject: "None"
Attachment: "PO_8776363636.iso"

Intelligence

File Origin
# of uploads :
1
# of downloads :
104
Origin country :
CH CH
File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:PO_8776363636.exe
File size:272'896 bytes
SHA256 hash: 9442fbb4a8b6fff536bf913966cf56849bd7808397a8426ce01fbe1c0577a2ef
MD5 hash: 34d2a61191e947db22c0762e0ad502e2
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Foxhole.Iso_fs2576.UNOFFICIAL
Create hunting rule

PUA.Win.Packed.ConfuserEx-6391397-0
Create hunting rule

Gathering data
Verdict:
Malicious
Labled as:
Mal_GENISO
Link:
https://www.hybrid-analysis.com/sample/e52940dac833cb5b8218350da11adcb63cffd7fecd9fdf82ec6dabdf0c4faa39
Result
Verdict:
MALICIOUS
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e52940dac833cb5b8218350da11adcb63cffd7fecd9fdf82ec6dabdf0c4faa39/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-07-25 08:12:23 UTC
File Type:
Binary (Archive)
Extracted files:
3
AV detection:
21 of 36 (58.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=4uuubwwigpfvxaqygug2cgw4wy6p7v76zwp57axmnwv56dcpvi4q._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/230725-rnzwjadf51/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/e52940dac833cb5b8218350da11adcb63cffd7fecd9fdf82ec6dabdf0c4faa39

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:INDICATOR_EXE_Packed_ConfuserEx
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_imphash
Create hunting rule
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: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
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_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT
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

iso e52940dac833cb5b8218350da11adcb63cffd7fecd9fdf82ec6dabdf0c4faa39

(this sample)

Formbook

Executable exe 9442fbb4a8b6fff536bf913966cf56849bd7808397a8426ce01fbe1c0577a2ef

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 9442fbb4a8b6fff536bf913966cf56849bd7808397a8426ce01fbe1c0577a2ef
  
Dropping
Formbook

Comments