MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4c36646137b8796ce102bf27296af58ca6cb8e5c5bce41a45fee3ec89fc99d2c. 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: 19


Intelligence 19 IOCs YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4c36646137b8796ce102bf27296af58ca6cb8e5c5bce41a45fee3ec89fc99d2c
SHA3-384 hash: 67de6776bd99818a396b34c4eccf71f4063d302cd7e3e113ea6b1da37a88a1d011ace12442ce261c4294ec3ec27311d6
SHA1 hash: 95cea3d2b0f49e78bc6ad2ba34519466229bf167
MD5 hash: 032fdf3e8c38db0b172b08af1ad1d07b
humanhash: uncle-failed-south-nuts
File name:HALKBANK.PDF.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:885'760 bytes
First seen:2025-09-12 07:43:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:7rwgikQj/2Rsqk7psIyekFa9CQLxtz3d2FuC3F2iRX32vt6jE968//mfKqOZQ8:7UgQzqk7+kuUCQ1tTzC30iV2vR9OiRQ
Threatray 3 similar samples on MalwareBazaar
TLSH T12A15F1442229DA17D5BA5FF11A72E2701B74AF9DE821D2078FC93DEFB536B80A941343
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
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)
Magika pebin
Reporter abuse_ch
Tags:AgentTesla exe geo Halkbank TUR

Intelligence

File Origin
# of uploads :
1
# of downloads :
137
Origin country :
SE SE
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
HALKBANK.PDF.exe
Verdict:
Malicious activity
Analysis date:
2025-09-12 07:56:30 UTC
Tags:
stealer evasion ultravnc rmm-tool exfiltration smtp agenttesla netreactor
Link:
https://app.any.run/tasks/68224020-8cc1-40d7-9607-4c309c0914ef

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/27091/
Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68c3cf48b2005259887a0392
Tags:
spawn shell lien
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Reading critical registry keys
Launching a service
Stealing user critical data
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 bitmap lolbin masquerade msbuild obfuscated packed packed reconnaissance redline redline regsvcs rezer0 roboski schtasks stego vbc
Link:
https://www.filescan.io/uploads/68c3cf8c47cd2102617f4ff4/reports/ad1009b0-3ae4-4e71-8447-df5ac2faa108/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/4c36646137b8796ce102bf27296af58ca6cb8e5c5bce41a45fee3ec89fc99d2c
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-11T04:57:00Z UTC
Last seen:
2025-09-11T04:57:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/4c36646137b8796ce102bf27296af58ca6cb8e5c5bce41a45fee3ec89fc99d2c/results?tab=lookup
Malware family:
Snake Keylogger
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/31cafbf2-829d-48bd-a882-dba68f969b0e
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1776241
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Check if machine is in data center or colocation facility
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
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)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Suspicious Double Extension File Execution
Suricata IDS alerts 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 ftp login credentials
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 AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1776241 Sample: HALKBANK.PDF.exe Startdate: 12/09/2025 Architecture: WINDOWS Score: 100 24 smtp.gmail.com 2->24 26 ip-api.com 2->26 32 Suricata IDS alerts for network traffic 2->32 34 Found malware configuration 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 12 other signatures 2->38 8 HALKBANK.PDF.exe 4 2->8         started        signatures3 process4 file5 22 C:\Users\user\...\HALKBANK.PDF.exe.log, ASCII 8->22 dropped 40 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->40 42 Adds a directory exclusion to Windows Defender 8->42 44 Injects a PE file into a foreign processes 8->44 12 HALKBANK.PDF.exe 15 2 8->12         started        16 powershell.exe 23 8->16         started        signatures6 process7 dnsIp8 28 ip-api.com 208.95.112.1, 49687, 80 TUT-ASUS United States 12->28 30 smtp.gmail.com 74.125.137.109, 49688, 587 GOOGLEUS United States 12->30 46 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->46 48 Tries to steal Mail credentials (via file / registry access) 12->48 50 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 12->50 54 2 other signatures 12->54 52 Loading BitLocker PowerShell Module 16->52 18 conhost.exe 16->18         started        20 WmiPrvSE.exe 16->20         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4c36646137b8796ce102bf27296af58ca6cb8e5c5bce41a45fee3ec89fc99d2c
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4c36646137b8796ce102bf27296af58ca6cb8e5c5bce41a45fee3ec89fc99d2c/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2025-09-11 09:41:49 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
27 of 38 (71.05%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jq3giyjxxb4wzyicx4tss2xvrstmxds4lphedjc75y7mrh6jtuwa._file
Verdict:
malicious
Label(s):
unc_loader_001
Create hunting rule
unc_loader_037
Create hunting rule
Similar samples:
f179047bce749b1e5558cc83fefe1364c9e7a8b3bdded23e80c3c7bd3b79235c
AgentTesla
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery execution spyware stealer
Link:
https://tria.ge/reports/250912-jlcn8abn8x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
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
Command and Scripting Interpreter: PowerShell
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f542e050-8585-4357-8a2f-226466f3b97d
Unpacked files
SH256 hash:
4a8af9946518b7adfabab291dccfa4f3e27acac1ef07d4f8a69ebb488994bac1
MD5 hash:
56c90d081546763ea9a07679d338a4bc
SHA1 hash:
344a336b0717e7dd13e8afe573c54bde42947281
Link:
https://www.unpac.me/results/c365f911-c1ef-4846-a76d-8997d61a84ff/
SH256 hash:
c92c0cb7ca5bb5d1e3062959d5f030ab507a6c70d242ee95ac638f1085a17898
MD5 hash:
f886872bc2be8a16d67024243b945ae6
SHA1 hash:
3aa3fb1bc07154dab99a71f5ac534ca75d433ebd
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/c365f911-c1ef-4846-a76d-8997d61a84ff/
SH256 hash:
1575b4eb40f410829cb39818b1c6efd0b59fbec76a5c05a4852008fdcaff210d
MD5 hash:
ff61a765fe9b8b054450bf15bc3d5d36
SHA1 hash:
d15142d0035236d23113d0224a23dbf7314e4386
Detections:
win_samsam_auto
Create hunting rule
SUSP_OBF_NET_Reactor_Native_Stub_Jan24
Create hunting rule
MAL_Malware_Imphash_Mar23_1
Create hunting rule
MetaStealer_NET_Reactor_packer
Create hunting rule
MALWARE_Win_RedLine
Create hunting rule
Link:
https://www.unpac.me/results/c365f911-c1ef-4846-a76d-8997d61a84ff/
Parent samples :
f179047bce749b1e5558cc83fefe1364c9e7a8b3bdded23e80c3c7bd3b79235c
4c36646137b8796ce102bf27296af58ca6cb8e5c5bce41a45fee3ec89fc99d2c
46a2cf127f00f21832a65d0a7a15b0192176472f5c0e8fe1e1f9e5fd9790fa11
00fad80ae20a52dc2972837339535064cf8b18b94ab2350bdab5f0cd62ae4fd3
SH256 hash:
b86dfe9cf69c168ccf6927310a949c85a2853c0b2c4697a13a8a4b36b59e5923
MD5 hash:
d6db49980aa4013d501cf0756ec2435c
SHA1 hash:
0e4b237a284a66aef548a76b2ca0b991d6be32fc
Detections:
AgentTesla
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Link:
https://www.unpac.me/results/c365f911-c1ef-4846-a76d-8997d61a84ff/
Parent samples :
f179047bce749b1e5558cc83fefe1364c9e7a8b3bdded23e80c3c7bd3b79235c
4c36646137b8796ce102bf27296af58ca6cb8e5c5bce41a45fee3ec89fc99d2c
46a2cf127f00f21832a65d0a7a15b0192176472f5c0e8fe1e1f9e5fd9790fa11
00fad80ae20a52dc2972837339535064cf8b18b94ab2350bdab5f0cd62ae4fd3
SH256 hash:
b31e7b949aa4ed5bc50a5f3bc63f6de6777334f1d32b23f3a37a8240538933c3
MD5 hash:
2accb05e920219cea35dbd16dfb86222
SHA1 hash:
3f91e0b699958bd4d676c9e0216e6e4f519673eb
Detections:
AgentTesla
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Link:
https://www.unpac.me/results/c365f911-c1ef-4846-a76d-8997d61a84ff/
Parent samples :
f179047bce749b1e5558cc83fefe1364c9e7a8b3bdded23e80c3c7bd3b79235c
4c36646137b8796ce102bf27296af58ca6cb8e5c5bce41a45fee3ec89fc99d2c
46a2cf127f00f21832a65d0a7a15b0192176472f5c0e8fe1e1f9e5fd9790fa11
00fad80ae20a52dc2972837339535064cf8b18b94ab2350bdab5f0cd62ae4fd3
SH256 hash:
4c36646137b8796ce102bf27296af58ca6cb8e5c5bce41a45fee3ec89fc99d2c
MD5 hash:
032fdf3e8c38db0b172b08af1ad1d07b
SHA1 hash:
95cea3d2b0f49e78bc6ad2ba34519466229bf167
Link:
https://www.unpac.me/results/c365f911-c1ef-4846-a76d-8997d61a84ff/
Malware family:
RedNet
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4c36646137b8/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/4c36646137b8796ce102bf27296af58ca6cb8e5c5bce41a45fee3ec89fc99d2c

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MALWARE_Win_RedLine
Create hunting rule
Author:ditekSHen
Description:Detects RedLine infostealer
Rule name:MAL_Malware_Imphash_Mar23_1
Create hunting rule
Author:Arnim Rupp
Description:Detects malware by known bad imphash or rich_pe_header_hash
Reference:https://yaraify.abuse.ch/statistics/
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
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:win_samsam_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/27091/

Comments