MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 90c33aa43c1c2d243a0038cb2d9014aad3e1ebaac30c6432ca959cb162be84ea. 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 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 90c33aa43c1c2d243a0038cb2d9014aad3e1ebaac30c6432ca959cb162be84ea
SHA3-384 hash: 28587e4fee2efb924303b22373d6dba4a67ffa56bded62e1da953e366068a6a28dab807794faa878513096d33fbec36d
SHA1 hash: fef83b43d7e37f9b9c812d53cdd2e55eeecb0504
MD5 hash: f5ebd5873444a651f5a9f2343e120f8e
humanhash: two-skylark-vegan-saturn
File name:REMITTANCE COPY.pdf.z
Download: download sample
Signature AgentTesla
Create hunting rule
File size:662'125 bytes
First seen:2023-10-24 14:24:02 UTC
Last seen:Never
File type: zip
MIME type:application/zip
ssdeep 12288:zvERoXKdgDyyfRvEVIbY+lcOnlLGcVn/lLb1D5ilb+ltM62X03aikp3lmJ5F:LKo6d/0B8mcU9NLRSb+vMt0kRod
TLSH T1B7E423726F96FFCB11B05B57CF613B49E613009AF1094AD1FBE4A8992084BBC09974F9
TrID 80.0% (.ZIP) ZIP compressed archive (4000/1)
20.0% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1)
Reporter cocaman
Tags:AgentTesla payment z zip


Avatar
cocaman
Malicious email (T1566.001)
From: "Luda Stahov <sales@e-nbu.top>" (likely spoofed)
Received: "from mail.e-nbu.top (unknown [194.4.56.132]) "
Date: "Thu, 19 Oct 2023 06:25:26 -0400 (EDT)"
Subject: "PAYMENT/REMITTANCE COPY"
Attachment: "REMITTANCE COPY.pdf.z"

Intelligence

File Origin
# of uploads :
1
# of downloads :
125
Origin country :
CH CH
File Archive Information

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

File name:REMITTANCE COPY.exe
File size:708'608 bytes
SHA256 hash: c07b0bc7550208853ed4e110563a52b1a07af7356ef8c09304d97a5ce35f80de
MD5 hash: 0433a9706b88bb48ab19209635770abd
MIME type:application/x-dosexec
Signature AgentTesla
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Foxhole.Zip_fs803.UNOFFICIAL
Create hunting rule

Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Unknown
File Type:
PE File
Link:
https://app.docguard.net/90c33aa43c1c2d243a0038cb2d9014aad3e1ebaac30c6432ca959cb162be84ea/results/dashboard
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6537d386c2a76fbfed337295/reports/88fe680a-8e3a-4a5a-84d3-93e801a0f699/overview
Verdict:
Suspicious
Labled as:
Troj/Krypt
Link:
https://www.hybrid-analysis.com/sample/90c33aa43c1c2d243a0038cb2d9014aad3e1ebaac30c6432ca959cb162be84ea
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/90c33aa43c1c2d243a0038cb2d9014aad3e1ebaac30c6432ca959cb162be84ea
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Score:
100%
Verdict:
Malware
File Type:
Archive
Link:
https://malprob.io/report/90c33aa43c1c2d243a0038cb2d9014aad3e1ebaac30c6432ca959cb162be84ea
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/90c33aa43c1c2d243a0038cb2d9014aad3e1ebaac30c6432ca959cb162be84ea/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-10-20 08:02:11 UTC
File Type:
Binary (Archive)
Extracted files:
17
AV detection:
21 of 38 (55.26%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=sdbtvjb4dqwsioqahdfs3eauvlj6d25kymggimwkswolcyv6qtva._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/231024-v8w7xsgh81/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.

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:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_agent_tesla_g2
Create hunting rule
Author:Daniel Plohmann <daniel.plohmann@fkie.fraunhofer.de>

File information

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

Malspam

AgentTesla

zip 90c33aa43c1c2d243a0038cb2d9014aad3e1ebaac30c6432ca959cb162be84ea

(this sample)

AgentTesla

Executable exe c07b0bc7550208853ed4e110563a52b1a07af7356ef8c09304d97a5ce35f80de

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 c07b0bc7550208853ed4e110563a52b1a07af7356ef8c09304d97a5ce35f80de
  
Dropping
AgentTesla
  
Dropping
MD5 0433a9706b88bb48ab19209635770abd

Comments