MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4894c3f698e1101a02c7af04e0fd81e36a0d91c0ce7c7003234e7bc18906f024. 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: 11


Intelligence 11 IOCs YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4894c3f698e1101a02c7af04e0fd81e36a0d91c0ce7c7003234e7bc18906f024
SHA3-384 hash: c13243f5c3ee566c8e7e47f40130b26a7e3c8304b7fbf25cf6a6ba91f0374c47d8b2fde8db291e74573fcfb1c20abc4e
SHA1 hash: 0e162ec263e37dbca0ea84c423b60420fccc8173
MD5 hash: bbc7c66b301d3087cfdaa89528832895
humanhash: nevada-bakerloo-winter-mirror
File name:1696413466c7d3c2dd8ed741265aaef75425ec2807e030e73269172b9d5f3b0a5ce0e6cc3e787.dat-decoded
Download: download sample
Signature AgentTesla
Create hunting rule
File size:248'320 bytes
First seen:2023-10-04 09:57:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 3072:CGVku9vtRdJdA3qXE6KNTn92Kse5L4CtdMGS:CGVku9vtRdJdA3FNTbsQtC
Threatray 41 similar samples on MalwareBazaar
TLSH T14E34FE037E88EB15E5A97E3782EF2C2413B2B0C71733C60B6F49AE5528516426D7E72D
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter abuse_ch
Tags:AgentTesla base64-decoded exe


Avatar
abuse_ch
Malware dropped as base64 encoded payload

Intelligence

File Origin
# of uploads :
1
# of downloads :
321
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Win.Packed.Msilperseus-9956591-0
Create hunting rule

Win.Packed.Generic-10003641-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Сreating synchronization primitives
DNS request
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Reading critical registry keys
Sending an HTTP POST request
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Gathering data
Verdict:
Malicious
Labled as:
MSIL.PasswordStealerA.Generic
Link:
https://www.hybrid-analysis.com/sample/4894c3f698e1101a02c7af04e0fd81e36a0d91c0ce7c7003234e7bc18906f024
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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3b29b663-e767-423a-b4ea-f2b8dd121aca
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1319351
Signature
Contains functionality to log keystrokes (.Net Source)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1319351 Sample: 1696413466c7d3c2dd8ed741265... Startdate: 04/10/2023 Architecture: WINDOWS Score: 100 30 Snort IDS alert for network traffic 2->30 32 Malicious sample detected (through community Yara rule) 2->32 34 Multi AV Scanner detection for submitted file 2->34 36 3 other signatures 2->36 5 1696413466c7d3c2dd8ed741265aaef75425ec2807e030e73269172b9d5f3b0a5ce0e6cc3e787.dat-decoded.exe 17 5 2->5         started        10 BsrzRc.exe 14 2 2->10         started        12 BsrzRc.exe 2 2->12         started        process3 dnsIp4 18 107.175.91.120, 49806, 49808, 49812 AS-COLOCROSSINGUS United States 5->18 20 api4.ipify.org 104.237.62.212, 443, 49805 WEBNXUS United States 5->20 22 api.ipify.org 5->22 14 C:\Users\user\AppData\Roaming\...\BsrzRc.exe, PE32 5->14 dropped 16 C:\Users\user\...\BsrzRc.exe:Zone.Identifier, ASCII 5->16 dropped 38 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 5->38 40 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 5->40 42 May check the online IP address of the machine 5->42 44 Hides that the sample has been downloaded from the Internet (zone.identifier) 5->44 24 173.231.16.77, 443, 49807, 49809 WEBNXUS United States 10->24 26 api.ipify.org 10->26 46 Multi AV Scanner detection for dropped file 10->46 48 Tries to steal Mail credentials (via file / registry access) 10->48 50 Machine Learning detection for dropped file 10->50 28 api.ipify.org 12->28 52 Tries to harvest and steal browser information (history, passwords, etc) 12->52 file5 signatures6
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4894c3f698e1101a02c7af04e0fd81e36a0d91c0ce7c7003234e7bc18906f024/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2023-10-04 09:58:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
19 of 23 (82.61%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jckmh5uy4eibuawhv4cob7mb4nva3eoazz6haazdjz54dcig6asa._file
Verdict:
malicious
Similar samples:
007cfdd9d19a225b749811f15daee02016824bfd2fbb63934ff4df18ed59eeff
AgentTesla
086495cde3e89171613dfbc1747b2ecc9d1a810a713d3c49e432ade7bbb61158
AgentTesla
1c754314f04cdcce697edd7ec302173990f645b1cc6e94347a38f543fdc93492
AgentTesla
5c7e18764c02e02117f91213a2f66e63265d3ed30c0ea8ae1c9be8ff5ee4ba43
AgentTesla
7cbe0d24267f2f3b343b4e223cfdbeaf47ce23e2d405d65a72074682b1f56089
AgentTesla
8a6c6cf2621bc864fe773ead086f95b0d95a6d959f0920b59c571242ef5aa126
AgentTesla
afb52427718567858eb87cd44b837b942710eea33b968e7820ca24038e762d9f
AgentTesla
+ 31 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
persistence spyware stealer
Link:
https://tria.ge/reports/231004-lzgw7sag6w/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Adds Run key to start application
Looks up external IP address via web service
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
4894c3f698e1101a02c7af04e0fd81e36a0d91c0ce7c7003234e7bc18906f024
MD5 hash:
bbc7c66b301d3087cfdaa89528832895
SHA1 hash:
0e162ec263e37dbca0ea84c423b60420fccc8173
Detections:
win_agent_tesla_g2
Create hunting rule
Link:
https://www.unpac.me/results/12e4e414-138a-45cc-9909-2e4b2162afa1/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4894c3f698e1/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/4894c3f698e1101a02c7af04e0fd81e36a0d91c0ce7c7003234e7bc18906f024

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: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: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

File information

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

c7d3c2dd8ed741265aaef75425ec2807e030e73269172b9d5f3b0a5ce0e6cc3e

AgentTesla

Executable exe 4894c3f698e1101a02c7af04e0fd81e36a0d91c0ce7c7003234e7bc18906f024

(this sample)

  
Dropped by
SHA256 c7d3c2dd8ed741265aaef75425ec2807e030e73269172b9d5f3b0a5ce0e6cc3e
  
Dropped by
MD5 c0f8ed6d8075fdb2e47d4cf02695eef1
  
URLhaus
https://urlhaus.abuse.ch/url/2714870/
  
Delivery method
Distributed via web download

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