MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e8e81093cd010071c77404527269918ccc4cd59c23713cba8954c91abde4ee28. 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: 6


Intelligence 6 IOCs YARA 23 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e8e81093cd010071c77404527269918ccc4cd59c23713cba8954c91abde4ee28
SHA3-384 hash: 526813e5968c8c072f18a616f315caf231f7af55e82f89917b61b2b634c5720e86c8fa7ac7cf0f698d8b12a267ff772b
SHA1 hash: 5a2beb11fc3bd5b88557603245a5c32263ff208e
MD5 hash: 4f64ed2d92f8cf783e3da668424e8eea
humanhash: emma-twenty-butter-monkey
File name:PO 876-1057.zip
Download: download sample
Signature Formbook
Create hunting rule
File size:581'211 bytes
First seen:2023-11-03 07:04:47 UTC
Last seen:2023-11-03 07:09:56 UTC
File type: zip
MIME type:application/zip
ssdeep 12288:EXVsHM0+gOmGp3xcEQHtuzaIoekVUFZquFuC2f/Jfawl:EXVsHM0VRGRxcEGuzaIoekVoZACgxCwl
TLSH T1A9C423FC20920FAFC196DEC7FBEF5CE4E084617A3A68A64175C498E15036FDA5106CDA
TrID 80.0% (.ZIP) ZIP compressed archive (4000/1)
20.0% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1)
Reporter cocaman
Tags:FormBook zip


Avatar
cocaman
Malicious email (T1566.001)
From: ""Liezel F. Guevarra" <support@lurstanservice.com>" (likely spoofed)
Received: "from mail.lurstanservice.com (unknown [104.234.134.253]) "
Date: "3 Nov 2023 03:35:48 +0000"
Subject: "=?UTF-8?B?5Zue5aSN77yaQk9BTUFYIC8gODc2LTEwNTcg5p2/5Lu35qC877yI5pyA57Sn5oCl77yJ?="
Attachment: "PO 876-1057.zip"

Intelligence

File Origin
# of uploads :
3
# of downloads :
86
Origin country :
CH CH
File Archive Information

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

File name:PO 876-1057.exe
File size:812'616 bytes
SHA256 hash: b5081a6bb5cd550a99f314c6dd7e76cd217473ddfec2f65c1b5ec13a000680b7
MD5 hash: cc1ed5e76151391f2b04d9c3101978c5
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.23627.ZipHeur.UNOFFICIAL
Create hunting rule

Result
Verdict:
Unknown
File Type:
PE File
Link:
https://app.docguard.net/e8e81093cd010071c77404527269918ccc4cd59c23713cba8954c91abde4ee28/results/dashboard
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/65449b9f746262825557529e/reports/3a4c3711-d1e2-4251-8885-54c58001dfc6/overview
Verdict:
Malicious
Link:
https://www.hybrid-analysis.com/sample/e8e81093cd010071c77404527269918ccc4cd59c23713cba8954c91abde4ee28
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/e8e81093cd010071c77404527269918ccc4cd59c23713cba8954c91abde4ee28
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Score:
0%
Verdict:
Benign
File Type:
Archive
Link:
https://malprob.io/report/e8e81093cd010071c77404527269918ccc4cd59c23713cba8954c91abde4ee28
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e8e81093cd010071c77404527269918ccc4cd59c23713cba8954c91abde4ee28/
Threat name:
Win32.Trojan.Swotter
Create hunting rule
Status:
Malicious
First seen:
2023-11-03 03:51:59 UTC
File Type:
Binary (Archive)
Extracted files:
7
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=5dubbe6naeahdr3uarjhe2mrrtgezvm4enytzoujktervppe5yua._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/231103-jm38kaea2x/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Loads dropped DLL
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/e8e81093cd010071c77404527269918ccc4cd59c23713cba8954c91abde4ee28

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: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: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_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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_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

zip e8e81093cd010071c77404527269918ccc4cd59c23713cba8954c91abde4ee28

(this sample)

Formbook

Executable exe b5081a6bb5cd550a99f314c6dd7e76cd217473ddfec2f65c1b5ec13a000680b7

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 b5081a6bb5cd550a99f314c6dd7e76cd217473ddfec2f65c1b5ec13a000680b7
  
Dropping
Formbook
  
Dropping
MD5 cc1ed5e76151391f2b04d9c3101978c5

Comments