MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b3919bc8ab3c523d2cc6c48a0279cf72d39de65e3ef428b922461f833e6ad4d. 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: 16


Intelligence 16 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4b3919bc8ab3c523d2cc6c48a0279cf72d39de65e3ef428b922461f833e6ad4d
SHA3-384 hash: 2515e2386ff225589d4994e04635b1e5a59b20b6d21a27e4003f9cc88b12add3c715a40880d89f5ecb18a47985f86022
SHA1 hash: a0acc1a4f6cb1b408b0580caa3cb0d62acceea78
MD5 hash: b98b02521b6df1659bd352d74a1b260f
humanhash: arizona-summer-jig-bravo
File name:onJfpEouKH2x8In.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:709'120 bytes
First seen:2023-09-27 10:30:11 UTC
Last seen:2023-09-28 10:55:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:zNOyiRJU/WcA0MaMv12hRON6Hpd1sWx4k0TV7bIlKZVCKM3Mob1V2naB0d875:p1FeP09hbzXfk/WKZ8KQxb1VL75
TLSH T18FE4022166FD4F5AE0B98BF948654A0C47B4A4BD2126FA0C0DC271EB17B1F46CB41FA7
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 00e49a72729ae400 (9 x AgentTesla, 4 x SnakeKeylogger, 3 x Loki)
Reporter TeamDreier
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
284
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
onJfpEouKH2x8In.exe
Verdict:
Malicious activity
Analysis date:
2023-09-27 10:30:27 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/dafa08aa-3648-44fa-a24d-a54ad845e9fc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/451551/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2402.18030.7642.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6514046983a0c6425d009a11/reports/ec0f24d1-e587-4645-a98b-65b9ee70a0ac/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/4b3919bc8ab3c523d2cc6c48a0279cf72d39de65e3ef428b922461f833e6ad4d
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/ee4b5ccb-9294-464d-ad0c-dd6785ef6f4c
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1315182
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
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
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4b3919bc8ab3c523d2cc6c48a0279cf72d39de65e3ef428b922461f833e6ad4d/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2023-09-27 07:15:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
16 of 22 (72.73%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jm4rtpekwpcshuwmnrekaj4464wttxtf4pxufc4serq7qm7gvvgq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/230927-mkdfxabc27/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
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
AgentTesla
Unpacked files
SH256 hash:
6bc8461b0ad379711499f1efb03a8c6f90c0226e1ebc10bb93dfceee89d9d2e1
MD5 hash:
ad567630cc090a52f47a228aa1cf0b65
SHA1 hash:
e4bb6afdb7d15feb803debe6ca612126d2f483e1
Link:
https://www.unpac.me/results/0b285d29-ed9d-4f89-95c5-b8dd190ad664/
SH256 hash:
a655be43f79d44bf3e6720e6e1aa99b8fd94785cd46707d9a0dd48a10e4d20c8
MD5 hash:
7c2c98a1bc1af93e1bc1e0c933915b8e
SHA1 hash:
c5c3a2e553fdfa9010cf11b582fe3399c5551ffd
Link:
https://www.unpac.me/results/0b285d29-ed9d-4f89-95c5-b8dd190ad664/
SH256 hash:
5bf404bead87bdec8ad5a549c2854fa3e24203f6e375901406a8a30c44cedcc6
MD5 hash:
ef896813bc0be1565fbb963447c05c9d
SHA1 hash:
1ee4089c435dae0a9ab5b2079c69504b84794cce
Detections:
AgentTesla
Create hunting rule
Link:
https://www.unpac.me/results/0b285d29-ed9d-4f89-95c5-b8dd190ad664/
Parent samples :
e4b46a390ed3597681b12b1834985a5a8ddaf4cae96ff14ed8c2ed0d1784c11c
4b3919bc8ab3c523d2cc6c48a0279cf72d39de65e3ef428b922461f833e6ad4d
SH256 hash:
7ec118e70613ce2d9aee29cda2918ca710dde346c68d4da75c2ea0402e6d4391
MD5 hash:
1622a62bf6805b2dca82a8632eceac71
SHA1 hash:
071b72a5a1231149dfe4b9fcfa3a6ee49265ab7c
Link:
https://www.unpac.me/results/0b285d29-ed9d-4f89-95c5-b8dd190ad664/
SH256 hash:
4b3919bc8ab3c523d2cc6c48a0279cf72d39de65e3ef428b922461f833e6ad4d
MD5 hash:
b98b02521b6df1659bd352d74a1b260f
SHA1 hash:
a0acc1a4f6cb1b408b0580caa3cb0d62acceea78
Link:
https://www.unpac.me/results/0b285d29-ed9d-4f89-95c5-b8dd190ad664/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4b3919bc8ab3/report/overview.html
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: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

File information

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

Malspam

AgentTesla

Executable exe 4b3919bc8ab3c523d2cc6c48a0279cf72d39de65e3ef428b922461f833e6ad4d

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/451551/

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