MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 233250bf7ea9a9e5727b2f597c6e8cbe52fa244030b8cea0e0e0528914fc024c. 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 14 File information Comments
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SHA256 hash: 233250bf7ea9a9e5727b2f597c6e8cbe52fa244030b8cea0e0e0528914fc024c
SHA3-384 hash: 4d317695329d9a6c1bade0cfc264a5f0e6f15776c34977d53afe39b1a1f5f2bb1538779bded9c86a0928794ceabb02a2
SHA1 hash: e6ea2f59a6b41ba0f7093ab8cc0d4a34dd62ec04
MD5 hash: 1b20497308dff8224c9fced74598b52f
humanhash: ink-hotel-colorado-louisiana
File name:Halkbank_Ekstre_20231212_080757_783952.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:716'800 bytes
First seen:2023-12-13 12:36:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:+TyLnkJ41ydW0LRYgqRphv0YYVPKKleWZRARVMT1+KNC1F/6WGsiTsaQjozvMRF9:ZLJ1ydWEqfYxKKfkRmTz876W5GsaQjoF
Threatray 1'574 similar samples on MalwareBazaar
TLSH T1CBE42348678E1A81C278587987F34089D7F6E2E37840DB5BEED827B31357F702C49629
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)
Reporter abuse_ch
Tags:AgentTesla exe geo Halkbank TUR

Intelligence

File Origin
# of uploads :
1
# of downloads :
305
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
Halkbank_Ekstre_20231212_080757_783952.pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-12-13 12:52:56 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/f8a5ab32-a521-415f-ad01-195b08c5f143

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/467190/
Detection(s):
Win.Packed.Dropperx-10015353-0
Create hunting rule

Win.Packed.Seraph-10016137-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Сreating synchronization primitives
DNS request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Query of malicious DNS domain
Sending a TCP request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/6579a57b3f60a8103490b799/reports/759cb13a-7663-4467-8c21-efdc688c2298/overview
Verdict:
Malicious
Labled as:
Ransom.Loki.Generic
Link:
https://www.hybrid-analysis.com/sample/233250bf7ea9a9e5727b2f597c6e8cbe52fa244030b8cea0e0e0528914fc024c
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/fb4e61a6-3915-4716-aa46-9a944bdb7f60
Result
Threat name:
AgentTesla, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1361383
Signature
.NET source code contains potential unpacker
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Snort IDS alert for network traffic
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)
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AgentTesla
Yara detected Costura Assembly Loader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1361383 Sample: Halkbank_Ekstre_20231212_08... Startdate: 13/12/2023 Architecture: WINDOWS Score: 100 27 webmail.epic-office.eu 2->27 29 api4.ipify.org 2->29 31 api.ipify.org 2->31 45 Snort IDS alert for network traffic 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 8 other signatures 2->51 7 Halkbank_Ekstre_20231212_080757_783952.pdf.exe 3 2->7         started        10 plQRn123nurs12.exe 3 2->10         started        12 plQRn123nurs12.exe 2 2->12         started        signatures3 process4 signatures5 53 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->53 55 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->55 57 Injects a PE file into a foreign processes 7->57 14 Halkbank_Ekstre_20231212_080757_783952.pdf.exe 16 5 7->14         started        59 Machine Learning detection for dropped file 10->59 19 plQRn123nurs12.exe 14 2 10->19         started        21 plQRn123nurs12.exe 12->21         started        process6 dnsIp7 33 webmail.epic-office.eu 91.235.116.194, 49705, 49706, 49707 THCPROJECTSRO Romania 14->33 35 api4.ipify.org 104.237.62.212, 443, 49704, 49708 WEBNXUS United States 14->35 23 C:\Users\user\AppData\...\plQRn123nurs12.exe, PE32 14->23 dropped 25 C:\...\plQRn123nurs12.exe:Zone.Identifier, ASCII 14->25 dropped 37 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->37 39 Tries to steal Mail credentials (via file / registry access) 14->39 41 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->41 43 Tries to harvest and steal browser information (history, passwords, etc) 21->43 file8 signatures9
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/233250bf7ea9a9e5727b2f597c6e8cbe52fa244030b8cea0e0e0528914fc024c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/233250bf7ea9a9e5727b2f597c6e8cbe52fa244030b8cea0e0e0528914fc024c/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2023-12-13 10:49:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
25 of 37 (67.57%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=emzfbp36vgu6k4t3f5mxy3umxzjpujcagc4m5iha4bjisfh4ajga._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
233250bf7ea9a9e5727b2f597c6e8cbe52fa244030b8cea0e0e0528914fc024c
AgentTesla
3e0693763c73e9bfa7f66c47625abc09b3ea401219602809a7ec9c258731cbf5
AgentTesla
4a27c12a8f4fb92e14521406e64dee16c6e888ba8de479b56d273241f514883b
AgentTesla
aa3d6760a1c5dbfcf7407c4e69f853b33f882cfc17daee6f18e037ed3a763e11
AgentTesla
bd8edeada1927c7fc6c0a816c824f5973477368cc61045c7d8ab4f1d60c842a2
AgentTesla
ca6de337c2d6a95d72c31d5c519e3b4e9eddcd2d3e37eb188605ece3c5c5d7cd
AgentTesla
+ 1'564 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/231213-ptgk2acfhr/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
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:
233250bf7ea9a9e5727b2f597c6e8cbe52fa244030b8cea0e0e0528914fc024c
MD5 hash:
1b20497308dff8224c9fced74598b52f
SHA1 hash:
e6ea2f59a6b41ba0f7093ab8cc0d4a34dd62ec04
Link:
https://www.unpac.me/results/c5291b93-1ca8-49c0-b1de-d9bb0ef36927/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/233250bf7ea9/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.83
Link:
https://yomi.yoroi.company/submissions/233250bf7ea9a9e5727b2f597c6e8cbe52fa244030b8cea0e0e0528914fc024c

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: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_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: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 233250bf7ea9a9e5727b2f597c6e8cbe52fa244030b8cea0e0e0528914fc024c

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/467190/

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