MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b1db53b341082b6418c63a7ff3c7effab85907b183c79140f5be57c5fa7a576d. 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: 8


Intelligence 8 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b1db53b341082b6418c63a7ff3c7effab85907b183c79140f5be57c5fa7a576d
SHA3-384 hash: df8dba23ff891be4428d674f722c6c846685a9d34032dc1622e5113e6626f0b13f4ff7ba43321de96ad83d3bd0d7aec3
SHA1 hash: ae94c29d819f7d68f3b96381d51095fd871726d1
MD5 hash: 95696a08ef18df36cf07d50a846ac460
humanhash: mirror-robert-seven-india
File name:NBP23030072-RFQ.pdf.lz
Download: download sample
Signature AgentTesla
Create hunting rule
File size:515'891 bytes
First seen:2023-04-28 06:33:42 UTC
Last seen:2023-04-28 06:54:12 UTC
File type: rar
MIME type:application/x-rar
ssdeep 12288:BlRf4KgsZOcJejjpq99PzUmHpDOE6V0dox+IGd:xP5OcJKjY9pzy0dokVd
TLSH T1DBB423A76BF7F672A3053D712BA9D3E276B602E2A516E648108EF0C6B7785C0C143D58
TrID 61.5% (.RAR) RAR compressed archive (v5.0) (8000/1)
38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Reporter cocaman
Tags:AgentTesla lz QUOTATION rar RFQ


Avatar
cocaman
Malicious email (T1566.001)
From: "Alba Lopez <sales@ventec.cl >" (likely spoofed)
Received: "from ventec.cl (unknown [185.222.57.92]) "
Date: "27 Apr 2023 20:08:16 +0200"
Subject: "REQUEST FOR QUOTATION NBP23030072-RFQ"
Attachment: "NBP23030072-RFQ.pdf.lz"

Intelligence

File Origin
# of uploads :
10
# of downloads :
111
Origin country :
CH CH
File Archive Information

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

File name:NBP23030072-RFQ.pdf.exe
File size:665'600 bytes
SHA256 hash: 9e9271e281e82549c613d3aba4a0603536a63c960bf42c16302f6b7668de0d78
MD5 hash: 0558114e5a19d5a278da42412228def8
MIME type:application/x-dosexec
Signature AgentTesla
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.28929.RarHeur.UNOFFICIAL
Create hunting rule

Sanesecurity.Rogue.0hr.20230427-1434.UNOFFICIAL
Create hunting rule

Result
Verdict:
Unknown
File Type:
PE File
Link:
https://app.docguard.net/b1db53b341082b6418c63a7ff3c7effab85907b183c79140f5be57c5fa7a576d/results/dashboard
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
formbook packed
Link:
https://www.filescan.io/uploads/644b68da92903068e34f451c/reports/330b76ee-e90e-45b8-a2d9-a57cd482d1ac/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/b1db53b341082b6418c63a7ff3c7effab85907b183c79140f5be57c5fa7a576d
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/b1db53b341082b6418c63a7ff3c7effab85907b183c79140f5be57c5fa7a576d/
Threat name:
Win32.Trojan.DarkStealerLoader
Create hunting rule
Status:
Malicious
First seen:
2023-04-27 07:47:10 UTC
File Type:
Binary (Archive)
Extracted files:
9
AV detection:
16 of 37 (43.24%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=whnvhm2bbavwiggghj77hr7p7k4fsb5rqpdzcqhvxzl4l6t2k5wq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/230428-h6nfsace64/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/b1db53b341082b6418c63a7ff3c7effab85907b183c79140f5be57c5fa7a576d

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_RAR_with_PDF_Script_Obfuscation
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects RAR file with suspicious .pdf extension prefix to trick users
Reference:Internal Research
Rule name:SUSP_RAR_with_PDF_Script_Obfuscation_RID34A4
Create hunting rule
Author:Florian Roth
Description:Detects RAR file with suspicious .pdf extension prefix to trick users
Reference:Internal Research

File information

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

Malspam

AgentTesla

rar b1db53b341082b6418c63a7ff3c7effab85907b183c79140f5be57c5fa7a576d

(this sample)

AgentTesla

Executable exe 9e9271e281e82549c613d3aba4a0603536a63c960bf42c16302f6b7668de0d78

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 9e9271e281e82549c613d3aba4a0603536a63c960bf42c16302f6b7668de0d78
  
Dropping
AgentTesla
  
Dropping
MD5 0558114e5a19d5a278da42412228def8

Comments