MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b5b48456d763fc563b9037d433745c45bf5962c87e7593c49c45f299e0a4c955. 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: b5b48456d763fc563b9037d433745c45bf5962c87e7593c49c45f299e0a4c955
SHA3-384 hash: d04767a2d9ef2fd34e3eb6156f937103f037dbaedb2f7272a86e1d061e995e695c74de63b80c047bf896a465a50a2fb9
SHA1 hash: 145b9d707f9ed04d0d044565dd5781f9061fd721
MD5 hash: a236b6aaed97415cc214f31c72641705
humanhash: sodium-black-bacon-jig
File name:PURCHASE INQUIRY.rar
Download: download sample
Signature Formbook
Create hunting rule
File size:630'070 bytes
First seen:2023-11-29 11:44:17 UTC
Last seen:Never
File type: rar
MIME type:application/x-rar
ssdeep 12288:H91BxEjbpZN0zXiXNU93WttlrtkvJxwCQf4hwv002BYqZ:HTBxEvpZqzXwH+wsz08Z
TLSH T103D4238085B5E2DD98B4AE1F3D60BB9EE7A0C509CC117148D3F43720B567622C9A76DF
TrID 58.3% (.RAR) RAR compressed archive (v-4.x) (7000/1)
41.6% (.RAR) RAR compressed archive (gen) (5000/1)
Reporter cocaman
Tags:FormBook rar


Avatar
cocaman
Malicious email (T1566.001)
From: "Susan He <sudha@bdexpress.com>" (likely spoofed)
Received: "from bdexpress.com (unknown [45.137.22.71]) "
Date: "29 Nov 2023 06:10:47 +0100"
Subject: "RE: PURCHASE INQUIRY"
Attachment: "PURCHASE INQUIRY.rar"

Intelligence

File Origin
# of uploads :
1
# of downloads :
106
Origin country :
CH CH
File Archive Information

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

File name:PURCHASE INQUIRY.exe
File size:712'704 bytes
SHA256 hash: d701a8e701c6d150ac156e35b1c71024884ded86c1e8564a02c30b772b7338c1
MD5 hash: 614698b189537cd4562737d5935ab5b4
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Result
Verdict:
Unknown
File Type:
PE File
Link:
https://app.docguard.net/b5b48456d763fc563b9037d433745c45bf5962c87e7593c49c45f299e0a4c955/results/dashboard
Verdict:
Malicious
Labled as:
Mal/DrodRar
Link:
https://www.hybrid-analysis.com/sample/b5b48456d763fc563b9037d433745c45bf5962c87e7593c49c45f299e0a4c955
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.
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b5b48456d763fc563b9037d433745c45bf5962c87e7593c49c45f299e0a4c955/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-11-29 06:54:58 UTC
File Type:
Binary (Archive)
Extracted files:
12
AV detection:
22 of 37 (59.46%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ww2iivwxmp6fmo4qg7kdg5c4iw7vsywipz2zhre4ixzjtyfezfkq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/231129-qp4ensgd84/
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
Loads dropped DLL
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/b5b48456d763fc563b9037d433745c45bf5962c87e7593c49c45f299e0a4c955

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: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:NETexecutableMicrosoft
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_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

rar b5b48456d763fc563b9037d433745c45bf5962c87e7593c49c45f299e0a4c955

(this sample)

Formbook

Executable exe d701a8e701c6d150ac156e35b1c71024884ded86c1e8564a02c30b772b7338c1

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 d701a8e701c6d150ac156e35b1c71024884ded86c1e8564a02c30b772b7338c1
  
Dropping
Formbook
  
Dropping
MD5 614698b189537cd4562737d5935ab5b4

Comments