MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 53b91eebb972d878123587bdbef591a49135baa6258dbace13ab740addac9577. 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: 6


Intelligence 6 IOCs YARA 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 53b91eebb972d878123587bdbef591a49135baa6258dbace13ab740addac9577
SHA3-384 hash: a45512c1512c0d3105824806b4eae38dbff82ac8dbe491ebbb3763fb08c36fa267a45594b7b6370aeb21b20e0e5017d2
SHA1 hash: 838f92b2cae8983ba6097823468783f77a0660f3
MD5 hash: ed7aa696616cdc404d902008e304512d
humanhash: lactose-india-indigo-golf
File name:PL -quote.rar
Download: download sample
Signature AgentTesla
Create hunting rule
File size:633'325 bytes
First seen:2024-04-30 06:50:05 UTC
Last seen:Never
File type: rar
MIME type:application/x-rar
ssdeep 12288:tAUI5cKXiBiFpBUIFQ28dm37HUk1F+LTzfX6k1jDeEFcWJ6PBxH13k:tAViBYhkawk1F+T6kIENJUbVU
TLSH T120D423F595636B60EABBFE895509568033E18E0FF2C34A1D0E52C167E93C07DCDAD262
TrID 61.5% (.RAR) RAR compressed archive (v5.0) (8000/1)
38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Reporter cocaman
Tags:AgentTesla rar


Avatar
cocaman
Malicious email (T1566.001)
From: "samuel.gichohi@skyplan.co.ke" (likely spoofed)
Received: "from hosted-by.rootlayer.net (unknown [185.222.58.228]) "
Date: "29 Apr 2024 19:41:55 +0200"
Subject: "Airfreight Quote Request - Kigali"
Attachment: "PL -quote.rar"

Intelligence

File Origin
# of uploads :
1
# of downloads :
88
Origin country :
CH CH
File Archive Information

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

File name:PL -quote.exe
File size:645'120 bytes
SHA256 hash: 8f04bba175e96923db4eb5a06dfe1e4c39051cfbc1d536cc3d1270b3cad487fb
MD5 hash: 8a32cb40f95d2c92d52f01b2c5a76712
MIME type:application/x-dosexec
Signature AgentTesla
Vendor Threat Intelligence
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/663094dd75339da04fa76ff2/reports/02b5ba81-5c3e-491c-a2ef-3e98cffdf78a/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/53b91eebb972d878123587bdbef591a49135baa6258dbace13ab740addac9577
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/53b91eebb972d878123587bdbef591a49135baa6258dbace13ab740addac9577/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-04-29 18:49:03 UTC
File Type:
Binary (Archive)
Extracted files:
7
AV detection:
15 of 24 (62.50%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ko4r525zolmhqervq66355mrusitlovgewg3vtqtvn2avxnmsv3q._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240430-h13nhsfb62/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Reads WinSCP keys stored on the system
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.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/53b91eebb972d878123587bdbef591a49135baa6258dbace13ab740addac9577

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:AgentTeslaV5
Create hunting rule
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
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:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Generic_Threat_9f4a80b2
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla
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

rar 53b91eebb972d878123587bdbef591a49135baa6258dbace13ab740addac9577

(this sample)

AgentTesla

Executable exe 8f04bba175e96923db4eb5a06dfe1e4c39051cfbc1d536cc3d1270b3cad487fb

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 8f04bba175e96923db4eb5a06dfe1e4c39051cfbc1d536cc3d1270b3cad487fb
  
Dropping
AgentTesla
  
Dropping
MD5 8a32cb40f95d2c92d52f01b2c5a76712

Comments