MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b81899f8a1fe7b9d53201e87ac76a8c2cce6d14185745b0a05c9f74e66657ea5. 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


AgentTesla


Vendor detections: 7


Intelligence 7 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b81899f8a1fe7b9d53201e87ac76a8c2cce6d14185745b0a05c9f74e66657ea5
SHA3-384 hash: 49ebbfc4dba23a22e8e683cf08d932a4bbbaac1cdbf6218687e7706295d590038fcd21409d5e097ecd9b0d3e5134d04a
SHA1 hash: f69e53d2c6e455ae0dc5b60fc3c22ad967ce74a7
MD5 hash: 8483e0df0b556eecc49c245e086e0829
humanhash: leopard-harry-bravo-pasta
File name:New Order _list.pdf.z
Download: download sample
Signature AgentTesla
Create hunting rule
File size:292'809 bytes
First seen:2023-06-20 06:48:51 UTC
Last seen:2023-06-20 07:00:39 UTC
File type: z
MIME type:application/x-rar
ssdeep 6144:mMW3vYo3J5B8O31XM9ymAC8UrLH5c4y1APuzhkIyzefHF6K2s0EX1NY+3uEmF:mMW3R3Jn3BMIm/LZc4y1o8guHFUBEX1M
TLSH T1365423B0B66223D9A65E061C991DAEB1C883407D35574917E4BE2CEF76BF2F00BA5D08
TrID 61.5% (.RAR) RAR compressed archive (v5.0) (8000/1)
38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Reporter cocaman
Tags:AgentTesla z


Avatar
cocaman
Malicious email (T1566.001)
From: "Ashley Ryan <a_ryan@jesssmith.com>" (likely spoofed)
Received: "from jesssmith.com (unknown [109.237.98.164]) "
Date: "19 Jun 2023 08:58:25 -0700"
Subject: "New Order list"
Attachment: "New Order _list.pdf.z"

Intelligence

File Origin
# of uploads :
2
# of downloads :
99
Origin country :
CH CH
File Archive Information

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

File name:New Order _list.exe
File size:308'571 bytes
SHA256 hash: a2e2e1fa1e718c0d2505ef567dca7a115d9cf17e67c9aade481187874216bf3f
MD5 hash: b3579732c909136ef842302a1261b3cd
MIME type:application/x-dosexec
Signature AgentTesla
Vendor Threat Intelligence
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
lolbin overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/64914be03067ea15b6568469/reports/4e64073c-2984-43ab-9ba9-1e968df7728b/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/b81899f8a1fe7b9d53201e87ac76a8c2cce6d14185745b0a05c9f74e66657ea5
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/b81899f8a1fe7b9d53201e87ac76a8c2cce6d14185745b0a05c9f74e66657ea5/
Threat name:
Win32.Trojan.Zmutzy
Create hunting rule
Status:
Malicious
First seen:
2023-06-19 12:38:30 UTC
File Type:
Binary (Archive)
Extracted files:
5
AV detection:
12 of 35 (34.29%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xamjt6fb7z5z2uzad2d2y5viylgonukbqv2fwcqfzh3u4ztfp2sq._file
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/b81899f8a1fe7b9d53201e87ac76a8c2cce6d14185745b0a05c9f74e66657ea5

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:MSIL_SUSP_OBFUSC_XorStringsNet
Create hunting rule
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
Reference:https://github.com/dr4k0nia/yara-rules
Rule name:msil_susp_obf_xorstringsnet
Create hunting rule
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
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

File information

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

Malspam

AgentTesla

z b81899f8a1fe7b9d53201e87ac76a8c2cce6d14185745b0a05c9f74e66657ea5

(this sample)

AgentTesla

Executable exe a2e2e1fa1e718c0d2505ef567dca7a115d9cf17e67c9aade481187874216bf3f

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 a2e2e1fa1e718c0d2505ef567dca7a115d9cf17e67c9aade481187874216bf3f
  
Dropping
AgentTesla
  
Dropping
MD5 b3579732c909136ef842302a1261b3cd

Comments