agenttesla | b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b

Analysis

max time kernel
119s
max time network
130s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28-03-2024 02:32

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General

Target

b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe
Size

618KB
MD5

adc47f20cba61f1a2f8171791a455d09
SHA1

62508fbdde7bfb78e927495bb96d78ceb832a1ae
SHA256

b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b
SHA512

49ee25101729fe1d351d6b96861be96c0fe273ecc3c3378fc42848ef1d46f6e6128982b695de7a8639b1529791c541f4ad2077c93c11155dc0d5ebbe63e8414c
SSDEEP

12288:4JMa5WyV/cXi7Cc8oZJfLyXrCt9vFjMRL9fPzDYUE8P8ITjEQ:4OS/kJoMIFCRhfgq8+j7

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.y-pt.com
Port:
587
Username:
maxwell@y-pt.com
Password:
LILKOOLL14!
Email To:
richibigi6@gmail.com

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

Detect packed .NET executables. Mostly AgentTeslaV4. 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1636-10-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/1636-12-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/1636-16-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/1636-18-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/1636-20-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/1636-23-0x0000000004C30000-0x0000000004C70000-memory.dmp	INDICATOR_EXE_Packed_GEN01

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1636-10-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/1636-12-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/1636-16-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/1636-18-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/1636-20-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/1636-23-0x0000000004C30000-0x0000000004C70000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1636-10-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/1636-12-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/1636-16-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/1636-18-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/1636-20-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/1636-23-0x0000000004C30000-0x0000000004C70000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL

Detects executables packed with SmartAssembly 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1712-4-0x0000000001EA0000-0x0000000001EAC000-memory.dmp	INDICATOR_EXE_Packed_SmartAssembly

Detects executables referencing Windows vault credential objects. Observed in infostealers 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1636-10-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/1636-12-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/1636-16-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/1636-18-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/1636-20-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/1636-23-0x0000000004C30000-0x0000000004C70000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1636-10-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/1636-12-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/1636-16-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/1636-18-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/1636-20-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/1636-23-0x0000000004C30000-0x0000000004C70000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Detects executables referencing many email and collaboration clients. Observed in information stealers 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1636-10-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/1636-12-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/1636-16-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/1636-18-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/1636-20-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/1636-23-0x0000000004C30000-0x0000000004C70000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

Detects executables referencing many file transfer clients. Observed in information stealers 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1636-10-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/1636-12-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/1636-16-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/1636-18-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/1636-20-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/1636-23-0x0000000004C30000-0x0000000004C70000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 ip-api.com

flow	ioc
4	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

Processes:

b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe

description	pid	process	target process
PID 1712 set thread context of 1636	1712	b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe	b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe

pid	process
1636	b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe
1636	b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe

description pid process

Token: SeDebugPrivilege 1636 b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe

description	pid	process
Token: SeDebugPrivilege	1636	b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe

description	pid	process	target process
PID 1712 wrote to memory of 1636	1712	b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe	b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe
PID 1712 wrote to memory of 1636	1712	b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe	b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe
PID 1712 wrote to memory of 1636	1712	b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe	b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe
PID 1712 wrote to memory of 1636	1712	b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe	b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe
PID 1712 wrote to memory of 1636	1712	b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe	b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe
PID 1712 wrote to memory of 1636	1712	b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe	b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe
PID 1712 wrote to memory of 1636	1712	b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe	b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe
PID 1712 wrote to memory of 1636	1712	b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe	b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe
PID 1712 wrote to memory of 1636	1712	b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe	b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe

C:\Users\Admin\AppData\Local\Temp\b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe
"C:\Users\Admin\AppData\Local\Temp\b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1712

C:\Users\Admin\AppData\Local\Temp\b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe
"C:\Users\Admin\AppData\Local\Temp\b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1636

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/1636-18-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1636-20-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1636-10-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1636-12-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1636-24-0x0000000074240000-0x000000007492E000-memory.dmp

Filesize
6.9MB

Download
memory/1636-23-0x0000000004C30000-0x0000000004C70000-memory.dmp

Filesize
256KB

Download
memory/1636-6-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1636-8-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1636-22-0x0000000074240000-0x000000007492E000-memory.dmp

Filesize
6.9MB

Download
memory/1636-25-0x0000000004C30000-0x0000000004C70000-memory.dmp

Filesize
256KB

Download
memory/1636-16-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1636-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1712-0-0x00000000002F0000-0x0000000000390000-memory.dmp

Filesize
640KB

Download
memory/1712-1-0x0000000074240000-0x000000007492E000-memory.dmp

Filesize
6.9MB

Download
memory/1712-21-0x0000000074240000-0x000000007492E000-memory.dmp

Filesize
6.9MB

Download
memory/1712-2-0x00000000046D0000-0x0000000004710000-memory.dmp

Filesize
256KB

Download
memory/1712-5-0x00000000050B0000-0x0000000005134000-memory.dmp

Filesize
528KB

Download
memory/1712-4-0x0000000001EA0000-0x0000000001EAC000-memory.dmp

Filesize
48KB

Download
memory/1712-3-0x0000000001CF0000-0x0000000001D02000-memory.dmp

Filesize
72KB

Download