agenttesla | 1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb

General

Target

1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe
Size

740KB
MD5

31d774bcb59137de3360dcb616cb7b5b
SHA1

83a1b52ebc2b0b765b27ef0566e0f762cd5a1cd9
SHA256

1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb
SHA512

33c7903b26f3fff20aceeafc31a1980ef017350090d7a4ee5333542b0976b29b2eaeec8f97cb5aac549f0344ff33cf0f020e319d4342d47bf5fe61a84d36c76c
SSDEEP

12288:kd1JsJ6S4d1Sh2iNwA4fNTq29Glbr9IjAhnoOSldKByGOFyGK5uPPaSshrQk1S:kdrw1GA4Nm2ZAW9djGOXA

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.sintecno.gr
Port:
587
Username:
[email protected]
Password:
k$&v8@,q0Pf#
Email To:
[email protected]

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. 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2484-8-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2484-10-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2484-14-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2484-16-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2484-18-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2484-8-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2484-10-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2484-14-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2484-16-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2484-18-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables packed with SmartAssembly 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2892-4-0x00000000003C0000-0x00000000003CC000-memory.dmp	INDICATOR_EXE_Packed_SmartAssembly

Detects executables referencing Windows vault credential objects. Observed in infostealers 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2484-8-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2484-10-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2484-14-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2484-16-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2484-18-0x0000000000400000-0x0000000000442000-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 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2484-8-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2484-10-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2484-14-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2484-16-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2484-18-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Detects executables referencing many email and collaboration clients. Observed in information stealers 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2484-8-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2484-10-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2484-14-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2484-16-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2484-18-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

Detects executables referencing many file transfer clients. Observed in information stealers 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2484-8-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2484-10-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2484-14-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2484-16-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2484-18-0x0000000000400000-0x0000000000442000-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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\cUsRDu = "C:\\Users\\Admin\\AppData\\Roaming\\cUsRDu\\cUsRDu.exe"	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 api.ipify.org
5 api.ipify.org

flow	ioc
4	api.ipify.org
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe

description	pid	process	target process
PID 2892 set thread context of 2484	2892	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe

pid	process
2892	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe
2892	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe
2892	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe
2484	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe
2484	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe

description	pid	process
Token: SeDebugPrivilege	2892	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe
Token: SeDebugPrivilege	2484	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe

pid process

2484 1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe

pid	process
2484	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe

description	pid	process	target process
PID 2892 wrote to memory of 2484	2892	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe
PID 2892 wrote to memory of 2484	2892	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe
PID 2892 wrote to memory of 2484	2892	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe
PID 2892 wrote to memory of 2484	2892	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe
PID 2892 wrote to memory of 2484	2892	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe
PID 2892 wrote to memory of 2484	2892	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe
PID 2892 wrote to memory of 2484	2892	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe
PID 2892 wrote to memory of 2484	2892	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe
PID 2892 wrote to memory of 2484	2892	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe	1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe

C:\Users\Admin\AppData\Local\Temp\1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe
"C:\Users\Admin\AppData\Local\Temp\1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2892

C:\Users\Admin\AppData\Local\Temp\1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe
"C:\Users\Admin\AppData\Local\Temp\1351b990d6a707e3a6e70890c2e4a637ce36c074210bed4ed5861e111f766ecb.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2484

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

Lateral Movement

Collection

Data from Local System

4

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

memory/2484-16-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2484-18-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2484-8-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2484-10-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2484-23-0x0000000074330000-0x0000000074A1E000-memory.dmp

Filesize
6.9MB

Download
memory/2484-21-0x0000000000690000-0x00000000006D0000-memory.dmp

Filesize
256KB

Download
memory/2484-6-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2484-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2484-20-0x0000000074330000-0x0000000074A1E000-memory.dmp

Filesize
6.9MB

Download
memory/2484-24-0x0000000000690000-0x00000000006D0000-memory.dmp

Filesize
256KB

Download
memory/2484-14-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2484-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2892-0-0x0000000001360000-0x000000000141C000-memory.dmp

Filesize
752KB

Download
memory/2892-1-0x0000000074330000-0x0000000074A1E000-memory.dmp

Filesize
6.9MB

Download
memory/2892-19-0x0000000074330000-0x0000000074A1E000-memory.dmp

Filesize
6.9MB

Download
memory/2892-2-0x0000000004BB0000-0x0000000004BF0000-memory.dmp

Filesize
256KB

Download
memory/2892-5-0x0000000004FB0000-0x0000000005034000-memory.dmp

Filesize
528KB

Download
memory/2892-4-0x00000000003C0000-0x00000000003CC000-memory.dmp

Filesize
48KB

Download
memory/2892-3-0x00000000003A0000-0x00000000003B2000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads