MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d43aabb445ebb4aed4c3ecd11803c5691bb27e574dff608290582e1f57692e19. 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: 18


Intelligence 18 IOCs YARA 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d43aabb445ebb4aed4c3ecd11803c5691bb27e574dff608290582e1f57692e19
SHA3-384 hash: faec9d628cb54e151fac000cd5d79b249c99c202b50cb6ea9e3fe0a84facaf4ed8c2c1353bb7fedd129ff44591c70345
SHA1 hash: 76318c348cb53008300bf82271f1e7ea57391a21
MD5 hash: 2b14cb0e21283c1f18c566f94f66f1bb
humanhash: finch-nitrogen-spaghetti-virginia
File name:d43aabb445ebb4aed4c3ecd11803c5691bb27e574dff608290582e1f57692e19
Download: download sample
Signature AgentTesla
Create hunting rule
File size:252'416 bytes
First seen:2024-03-04 13:40:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 3072:FSCHHXX3HGhgK5IOf7SILUJCQ75VWo2aZIV82:FJHXX3HGhgK5h6CQeo2n
Threatray 5'163 similar samples on MalwareBazaar
TLSH T139340F037E48EB15E5A87E3792EF282413B2B0C71633D60F6F49AE6519512836C7E72D
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 adrian__luca
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
314
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
d43aabb445ebb4aed4c3ecd11803c5691bb27e574dff608290582e1f57692e19.exe
Verdict:
Malicious activity
Analysis date:
2024-03-04 14:49:52 UTC
Tags:
evasion agenttesla stealer
Link:
https://app.any.run/tasks/38e6418c-4d33-4db2-a4af-490d1ae8bc98

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 a custom TCP request
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Creating a window
Setting a keyboard event handler
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
90%
Tags:
anti-vm evasive fingerprint hacktool hook keylogger lolbin remote stealer
Link:
https://www.filescan.io/uploads/65e5cf7ed6359a57453e8e7d/reports/bdb1ab1f-4f92-4b75-b377-1d784e34d6d2/overview
Verdict:
Malicious
Labled as:
MSIL.Krypt.Generic
Link:
https://www.hybrid-analysis.com/sample/d43aabb445ebb4aed4c3ecd11803c5691bb27e574dff608290582e1f57692e19
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/ac718a50-b054-4b35-a3e6-2a60e77f55c6
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1402706
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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)
Queries sensitive video device information (via WMI, Win32_VideoController, 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 Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1402706 Sample: zCHinb5vNU.exe Startdate: 04/03/2024 Architecture: WINDOWS Score: 100 19 mail.regs-adnocae.com 2->19 21 regs-adnocae.com 2->21 23 2 other IPs or domains 2->23 31 Found malware configuration 2->31 33 Malicious sample detected (through community Yara rule) 2->33 35 Antivirus / Scanner detection for submitted sample 2->35 37 7 other signatures 2->37 6 zCHinb5vNU.exe 17 5 2->6         started        11 uEyoGzN.exe 14 2 2->11         started        13 uEyoGzN.exe 2 2->13         started        signatures3 process4 dnsIp5 25 ip-api.com 208.95.112.1, 49705, 49709, 49713 TUT-ASUS United States 6->25 27 regs-adnocae.com 173.252.167.10, 49706, 49707, 49710 SRS-6-Z-7381US United States 6->27 29 api.ipify.org 172.67.74.152, 443, 49704, 49708 CLOUDFLARENETUS United States 6->29 15 C:\Users\user\AppData\Roaming\...\uEyoGzN.exe, PE32 6->15 dropped 17 C:\Users\user\...\uEyoGzN.exe:Zone.Identifier, ASCII 6->17 dropped 39 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 6->39 41 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 6->41 43 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->43 57 2 other signatures 6->57 45 Antivirus detection for dropped file 11->45 47 Multi AV Scanner detection for dropped file 11->47 49 Tries to steal Mail credentials (via file / registry access) 11->49 51 Machine Learning detection for dropped file 11->51 53 Tries to harvest and steal browser information (history, passwords, etc) 13->53 55 Installs a global keyboard hook 13->55 file6 signatures7
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d43aabb445ebb4aed4c3ecd11803c5691bb27e574dff608290582e1f57692e19
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d43aabb445ebb4aed4c3ecd11803c5691bb27e574dff608290582e1f57692e19/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-03-04 13:41:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2q5kxncf5o2k5vgd5tirqa6fnen3e7sxjx7wbauqlaxb6v3jfymq._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
7188253ef9a01fd08ae8d47e7da80165b19f4d52a60116dc2a91d9afff799223
AgentTesla
72aa3b6f49cb6e40559bcaeec0a209959e55a6b47671b45581acd2e718b76dc4
AgentTesla
d92da33493917017ff937789890dfacd02c22671abd9ea8c196ea9dfd90f3a72
AgentTesla
e161c75413a00f6538b93cea7c5790a132eae426149758f2018bde3a699d603c
AgentTesla
f00b5fbe46481ef64e67801d8c03ac4166ab7758fb5faea3d66987f9e09c4aea
AgentTesla
+ 5'153 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240304-qy43kacf67/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Adds Run key to start application
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:
d43aabb445ebb4aed4c3ecd11803c5691bb27e574dff608290582e1f57692e19
MD5 hash:
2b14cb0e21283c1f18c566f94f66f1bb
SHA1 hash:
76318c348cb53008300bf82271f1e7ea57391a21
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Agenttesla_type2
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/2b667337-4925-48eb-bd36-4b41e971264b/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/d43aabb445eb/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/d43aabb445ebb4aed4c3ecd11803c5691bb27e574dff608290582e1f57692e19

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: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: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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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.

Malspam

AgentTesla

Executable exe d43aabb445ebb4aed4c3ecd11803c5691bb27e574dff608290582e1f57692e19

(this sample)

  
Delivery method
Distributed via e-mail attachment

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