MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 23a3247e51724797e335acdb0e40a154a38f8b8365e1fbf0e8635a6464688f35. 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: 14


Intelligence 14 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 23a3247e51724797e335acdb0e40a154a38f8b8365e1fbf0e8635a6464688f35
SHA3-384 hash: c569874e9b8929d865bc475628f534e507a9f7405a2343a28a5473eabf1b263ba556c0a5593b3ddf195b84b9ec48ddd6
SHA1 hash: 29533a95b9f8f0889a549441e9bf7e018f4811d3
MD5 hash: 57d0de1c4f03e67ac1bc7e8b2e003579
humanhash: cold-bravo-papa-alaska
File name:4323432-3434-04T142248.263.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:241'152 bytes
First seen:2024-02-15 21:14:59 UTC
Last seen:2024-02-16 12:20:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 3072:LoNAxO16ce8COkdsUvmx0Y3k0qrzN9cS2OcJQhqZAnYxVCzon7ncqgyCTh:0NAa6c6OkvaM3vZE20AYxVC8nzcqgy
Threatray 6'232 similar samples on MalwareBazaar
TLSH T16B34FA2C2B18D527CAAF8477AC2595099BE4C0C3EFC3BF4F249C65E528D53299E211ED
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 James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
372
Origin country :
US US
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
23a3247e51724797e335acdb0e40a154a38f8b8365e1fbf0e8635a6464688f35.exe
Verdict:
Malicious activity
Analysis date:
2024-02-15 21:15:27 UTC
Tags:
evasion agenttesla stealer
Link:
https://app.any.run/tasks/d8408601-9a6b-42eb-b8cf-fda1d3e19a02

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/476385/
Detection(s):
SecuriteInfo.com.Win32.RATX-gen.14616.31579.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Connection attempt to an infection source
Sending an HTTP GET request
Creating a file in the %AppData% directory
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Reading critical registry keys
Sending a custom TCP request
Creating a window
Query of malicious DNS domain
Sending a TCP request to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade
Link:
https://www.filescan.io/uploads/65ce7ed7781f57164639abcf/reports/b762d145-88a3-4db1-ae50-1cd9d4804b31/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/23a3247e51724797e335acdb0e40a154a38f8b8365e1fbf0e8635a6464688f35
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d17a5df1-cb16-43fd-a9d4-8300ccd7635e
Result
Threat name:
AgentTesla, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1393118
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
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
Initial sample is a PE file and has a suspicious name
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)
Sample uses string decryption to hide its real strings
Sigma detected: Suspicious Double Extension File Execution
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 Costura Assembly Loader
Yara detected Generic Downloader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1393118 Sample: 4323432-3434-04T142248.263.... Startdate: 15/02/2024 Architecture: WINDOWS Score: 100 26 mail.khenghong.com 2->26 28 windowsupdatebg.s.llnwi.net 2->28 30 3 other IPs or domains 2->30 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus / Scanner detection for submitted sample 2->48 50 13 other signatures 2->50 7 Oisiauy.exe 14 5 2->7         started        10 4323432-3434-04T142248.263.pdf.exe 16 5 2->10         started        14 Oisiauy.exe 2->14         started        signatures3 process4 dnsIp5 52 Antivirus detection for dropped file 7->52 54 Multi AV Scanner detection for dropped file 7->54 56 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->56 58 Machine Learning detection for dropped file 7->58 16 Oisiauy.exe 2 7->16         started        36 qu.ax 45.83.31.187, 443, 49729, 49733 DEDIPATH-LLCUS Netherlands 10->36 24 C:\Users\user\AppData\Roaming\Oisiauy.exe, PE32 10->24 dropped 60 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 10->60 62 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->62 64 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 10->64 19 4323432-3434-04T142248.263.pdf.exe 2 10->19         started        22 Oisiauy.exe 14->22         started        file6 signatures7 process8 dnsIp9 32 ip-api.com 208.95.112.1, 49730, 49734, 49743 TUT-ASUS United States 19->32 34 khenghong.com 218.208.91.137, 49731, 49732, 49736 TMNET-AS-APTMNetInternetServiceProviderMY Malaysia 19->34 38 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 22->38 40 Tries to steal Mail credentials (via file / registry access) 22->40 42 Tries to harvest and steal browser information (history, passwords, etc) 22->42 signatures10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/23a3247e51724797e335acdb0e40a154a38f8b8365e1fbf0e8635a6464688f35
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/23a3247e51724797e335acdb0e40a154a38f8b8365e1fbf0e8635a6464688f35/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-02-15 21:14:45 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=eorsi7srojdzpyzvvtnq4qfbksry7c4dmxq7x4himnngizdir42q._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
0a06869ea7ce6fcbd872d14d7bbf27ea06fd6f0ec098fe4824fc41c9fc30c644
AgentTesla
23a3247e51724797e335acdb0e40a154a38f8b8365e1fbf0e8635a6464688f35
AgentTesla
4e4430def6aa40209667fa3a7066c2998f9b67843ba22ec3376c9860de86ba9a
AgentTesla
945e176b7aa6d3b13ca4f6cd758fe5ee04c49ab1778c2b5433166dfce5adc9e2
AgentTesla
a057aab2994c9b2d3214e2ebdfa28dcce023546bf7154c8832bd27112c693e86
AgentTesla
bc7381f7bce8220e8856d1b249ab1e26ba0ab4a11a8be0406e1a0356a79b506d
AgentTesla
f2b532450ed44fa884c0ea547b17a6a11524c2abc5a0b8278143d0b26604bbf9
AgentTesla
+ 6'222 additional samples on MalwareBazaar
Result
Malware family:
zgrat
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla family:zgrat keylogger persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/240215-z3wfnage7y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
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
AgentTesla
Detect ZGRat V1
ZGRat
Unpacked files
SH256 hash:
23a3247e51724797e335acdb0e40a154a38f8b8365e1fbf0e8635a6464688f35
MD5 hash:
57d0de1c4f03e67ac1bc7e8b2e003579
SHA1 hash:
29533a95b9f8f0889a549441e9bf7e018f4811d3
Link:
https://www.unpac.me/results/0c0ce57c-3072-49e4-975f-8d539720a696/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.75
Link:
https://yomi.yoroi.company/submissions/23a3247e51724797e335acdb0e40a154a38f8b8365e1fbf0e8635a6464688f35

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

rar 130236a150ef9a7e59c172fb50d8ce855cf90f0ce8166fb694308b385c3fb239

AgentTesla

Executable exe 23a3247e51724797e335acdb0e40a154a38f8b8365e1fbf0e8635a6464688f35

(this sample)

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/476385/
  
Dropped by
SHA256 130236a150ef9a7e59c172fb50d8ce855cf90f0ce8166fb694308b385c3fb239
  
Dropped by
MD5 32689e74b5423969e698077670db0967

Comments