MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 428a47c23b3915a5e9a8f7886043bc0f83df96a9ed1c5ea3562392aa64aa08de. 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: 428a47c23b3915a5e9a8f7886043bc0f83df96a9ed1c5ea3562392aa64aa08de
SHA3-384 hash: c5186c7eb3be1f4938a3fc1030f7c8709639989a88430f4b1a4e143e48644b69f23977a1476af87a3c686f7eb714333c
SHA1 hash: 652c884da368dafebcc78762ed40a4626b25c9e0
MD5 hash: dc48683b4e3a3a9639f3ac883fbb7d5d
humanhash: zulu-pennsylvania-kansas-golf
File name:428a47c23b3915a5e9a8f7886043bc0f83df96a9ed1c5ea3562392aa64aa08de
Download: download sample
Signature AgentTesla
Create hunting rule
File size:714'752 bytes
First seen:2024-05-10 10:13:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:r+DbgRB778QedpgfsovqicjO4B3/fbi4/ADeTsCGdXQVSRnzri0yrnEJ:CgRBupgk9PjO4B3biCYlg0y4
TLSH T18BE4121176B89FB6E97B6BF20128E8410BF634B659A2E25D1CC236CF2971F508720F47
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) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter adrian__luca
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
301
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
428a47c23b3915a5e9a8f7886043bc0f83df96a9ed1c5ea3562392aa64aa08de.exe
Verdict:
Malicious activity
Analysis date:
2024-05-10 10:16:04 UTC
Tags:
evasion agenttesla stealer ftp exfiltration
Link:
https://app.any.run/tasks/36704db6-039b-484a-a955-90d7f8585033

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending an HTTP GET request
Reading critical registry keys
Stealing user critical data
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
cmd lolbin packed
Link:
https://www.filescan.io/uploads/663df37954aa07c307f438ba/reports/5be537cc-7cfe-4046-bbed-dcf129a6dc42/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/428a47c23b3915a5e9a8f7886043bc0f83df96a9ed1c5ea3562392aa64aa08de
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ab471136-254e-4006-aa9a-8d038c5a6afc
Result
Threat name:
AgentTesla, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1439532
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Check if machine is in data center or colocation facility
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
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
Yara detected Generic Downloader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/428a47c23b3915a5e9a8f7886043bc0f83df96a9ed1c5ea3562392aa64aa08de
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/428a47c23b3915a5e9a8f7886043bc0f83df96a9ed1c5ea3562392aa64aa08de/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-04-29 07:15:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
18 of 24 (75.00%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ikfepqr3hek2l2ni66egaq54b6b57fvj5uof5i2weojkuzfkbdpa._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240510-l9mkfaca96/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Looks up external IP address via web service
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
Unpacked files
SH256 hash:
4909093c1045073940daf73778f88ce3e5d4dcbc0d69e3498ad4672c2e699013
MD5 hash:
28b43a10958caef0465f7b93be0a0d77
SHA1 hash:
9c85c1cb7f6face0a6c8d0a2d2314a99092d6554
Link:
https://www.unpac.me/results/12fd9937-ce64-4dfe-8512-0de823464555/
SH256 hash:
aed4a976a528f9472b707daae3bc4e722978bce7f0ac54b72cf1cfcd5981a5d8
MD5 hash:
9e4aea62ee76efb9013e6440afd8ffe6
SHA1 hash:
8d597f109698e7c74da0f20815fc4da575ce29c4
Link:
https://www.unpac.me/results/12fd9937-ce64-4dfe-8512-0de823464555/
SH256 hash:
522e9ed6a85b3e8dcb97e562e508ba50c9215bedbf020f540521762df9ba3bc8
MD5 hash:
4d304527ed3d3a9d9cee7c9ac6896d60
SHA1 hash:
4109ecca9e4793fb57ad729c9de40c2532dbd121
Detections:
win_agent_tesla_g2
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Agenttesla_type2
Create hunting rule
MALWARE_Win_AgentTeslaV2
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/12fd9937-ce64-4dfe-8512-0de823464555/
Parent samples :
993748ed5874b2d2f4cc0534004060d0f3b7227d98dabe13b0e6b10d6b783fc0
428a47c23b3915a5e9a8f7886043bc0f83df96a9ed1c5ea3562392aa64aa08de
3990971d705514cd25bbc3c94b262bc7775928baf3472270b2fa43107ea3d01e
SH256 hash:
8ec804cd4f2e62dcf69dac88d4c19b82383771b7ea89a506a21f52c0710162dc
MD5 hash:
806963fc7fd4453584cc18944ee450dc
SHA1 hash:
3eb98d449ee40d77fcf86ef3b94e16235258585a
Link:
https://www.unpac.me/results/12fd9937-ce64-4dfe-8512-0de823464555/
SH256 hash:
428a47c23b3915a5e9a8f7886043bc0f83df96a9ed1c5ea3562392aa64aa08de
MD5 hash:
dc48683b4e3a3a9639f3ac883fbb7d5d
SHA1 hash:
652c884da368dafebcc78762ed40a4626b25c9e0
Link:
https://www.unpac.me/results/12fd9937-ce64-4dfe-8512-0de823464555/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/428a47c23b39/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/428a47c23b3915a5e9a8f7886043bc0f83df96a9ed1c5ea3562392aa64aa08de

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
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

File information

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

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments