MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a3fc7377d62b44533ae2f56fcbe3ce43946b03acb10ca73f47574ebc833e2494. 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: 17


Intelligence 17 IOCs YARA 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a3fc7377d62b44533ae2f56fcbe3ce43946b03acb10ca73f47574ebc833e2494
SHA3-384 hash: 034411f08295803240c3c3a5e575e2211a95d77e98f1b17f5927e4e62f0423e431d5a4fa0d2e61768955463a1b4d02a1
SHA1 hash: 19b45501e22564b8cb60e98dfae88a94f33726ad
MD5 hash: b285a809297fb31a0517019b72c4fb7e
humanhash: pluto-uniform-lake-violet
File name:17152359653a05b96d05ff5bef69786c7326d6262078875016233ef3d21642eb7337464dde415.dat-decoded
Download: download sample
Signature AgentTesla
Create hunting rule
File size:244'224 bytes
First seen:2024-05-09 06:26:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 3072:TkNljwcHLPrnRiQa0gyYEhR5m26Yy5Th7kSYB:oNlscHLPrnRiQa07VZd6Ys7X
TLSH T1B4340F037E88EB15E1A87E3782EF6C2413B2B4C71633C60BAF49AF6614516525C7E72D
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 :
402
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
a3fc7377d62b44533ae2f56fcbe3ce43946b03acb10ca73f47574ebc833e2494.exe
Verdict:
Malicious activity
Analysis date:
2024-05-09 06:44:01 UTC
Tags:
evasion stealer agenttesla ftp exfiltration
Link:
https://app.any.run/tasks/e9a06d7e-0392-4a4d-ac9f-ad3c7fd63d4f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Msilperseus-9956591-0
Create hunting rule

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

Win.Packed.Generic-10011753-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Reading critical registry keys
Creating a window
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
90%
Tags:
agenttesla anti-vm evasive fingerprint hacktool hook keylogger lolbin remote stealer
Link:
https://www.filescan.io/uploads/663c6cb754aa07c307f18e84/reports/bce16b85-bda1-4343-89fd-0fec00484b42/overview
Verdict:
Malicious
Labled as:
Jalapeno.Generic
Link:
https://www.hybrid-analysis.com/sample/a3fc7377d62b44533ae2f56fcbe3ce43946b03acb10ca73f47574ebc833e2494
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9eea3e40-0432-438d-aa47-cf96a4ae5fe9
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1438774
Signature
Antivirus / Scanner detection for submitted sample
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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 steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a3fc7377d62b44533ae2f56fcbe3ce43946b03acb10ca73f47574ebc833e2494
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a3fc7377d62b44533ae2f56fcbe3ce43946b03acb10ca73f47574ebc833e2494/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-05-09 02:51:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
31 of 38 (81.58%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=up6hg56wfncfgoxc6vx4xy6oiokgwa5mwegkop2hk5hlzaz6eska._file
Verdict:
malicious
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240509-g7s7zshb76/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Looks up external IP address via web service
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
a3fc7377d62b44533ae2f56fcbe3ce43946b03acb10ca73f47574ebc833e2494
MD5 hash:
b285a809297fb31a0517019b72c4fb7e
SHA1 hash:
19b45501e22564b8cb60e98dfae88a94f33726ad
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/f57729a3-13d5-41cc-b053-9bfd3d948fa2/
Parent samples :
a3fc7377d62b44533ae2f56fcbe3ce43946b03acb10ca73f47574ebc833e2494
6e31604e21ccb697b05509c5781684f6df171092abc5d3e5d1925c09c9bb846f
b905a6ef2b9eb0112dd70edabbfe2f064cb146efd691c0966e62e8689c8bc011
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a3fc7377d62b/report/overview.html
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/a3fc7377d62b44533ae2f56fcbe3ce43946b03acb10ca73f47574ebc833e2494

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:AgentTeslaV2
Create hunting rule
Author:ditekshen
Description:AgenetTesla Type 2 Keylogger payload
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_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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_SandboxHookingDLL
Create hunting rule
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
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:MALWARE_Win_AgentTeslaV2
Create hunting rule
Author:ditekSHen
Description:AgenetTesla Type 2 Keylogger payload
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

File information

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

Web download

AgentTesla

unknown 3a05b96d05ff5bef69786c7326d6262078875016233ef3d21642eb7337464dde

AgentTesla

Executable exe a3fc7377d62b44533ae2f56fcbe3ce43946b03acb10ca73f47574ebc833e2494

(this sample)

  
Dropped by
SHA256 3a05b96d05ff5bef69786c7326d6262078875016233ef3d21642eb7337464dde
  
Dropped by
MD5 2c5c5e61772bd55b4032a9916c7ad6da
  
URLhaus
https://urlhaus.abuse.ch/url/2843965/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2845325/
  
URLhaus
https://urlhaus.abuse.ch/url/2845463/

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