agenttesla | b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee

General

Target

b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe
Size

615KB
MD5

8e089d97fa7d7acabafb8ffd749876e5
SHA1

625e04a12599d830249c86edb35b05a99b68f537
SHA256

b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee
SHA512

471baa32b433bcd7585450fd2db4ea1ad186bf2d52244fe38dcdbd1c9a3c3b57ddc71475d3587570dd7d16f4f9451b18b77dde3a43b36d114d33562feac72a82
SSDEEP

12288:fUBa5WiPawnvlHEwl9bvgmr5jgtsvEG+yusvkXOUfDJI8JDr7:sziPa0vlHpghtK+jBFJDr7

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/2920-10-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2920-11-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2920-17-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2920-15-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2920-19-0x0000000000400000-0x0000000000442000-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/2920-10-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2920-11-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2920-17-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2920-15-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2920-19-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables packed with SmartAssembly 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2964-4-0x0000000000450000-0x000000000045C000-memory.dmp	INDICATOR_EXE_Packed_SmartAssembly

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

Processes:

resource	yara_rule
behavioral1/memory/2920-10-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2920-11-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2920-17-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2920-15-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2920-19-0x0000000000400000-0x0000000000442000-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/2920-10-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2920-11-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2920-17-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2920-15-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2920-19-0x0000000000400000-0x0000000000442000-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/2920-10-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2920-11-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2920-17-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2920-15-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2920-19-0x0000000000400000-0x0000000000442000-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/2920-10-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2920-11-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2920-17-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2920-15-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2920-19-0x0000000000400000-0x0000000000442000-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:

b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\cUsRDu = "C:\\Users\\Admin\\AppData\\Roaming\\cUsRDu\\cUsRDu.exe"	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.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:

b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe

description	pid	process	target process
PID 2964 set thread context of 2920	2964	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exeb5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe

pid	process
2964	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe
2964	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe
2964	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe
2920	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe
2920	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exeb5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe

description	pid	process
Token: SeDebugPrivilege	2964	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe
Token: SeDebugPrivilege	2920	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe

pid process

2920 b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe

pid	process
2920	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe

description	pid	process	target process
PID 2964 wrote to memory of 2920	2964	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe
PID 2964 wrote to memory of 2920	2964	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe
PID 2964 wrote to memory of 2920	2964	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe
PID 2964 wrote to memory of 2920	2964	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe
PID 2964 wrote to memory of 2920	2964	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe
PID 2964 wrote to memory of 2920	2964	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe
PID 2964 wrote to memory of 2920	2964	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe
PID 2964 wrote to memory of 2920	2964	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe
PID 2964 wrote to memory of 2920	2964	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe	b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe

C:\Users\Admin\AppData\Local\Temp\b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe
"C:\Users\Admin\AppData\Local\Temp\b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2964

C:\Users\Admin\AppData\Local\Temp\b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe
"C:\Users\Admin\AppData\Local\Temp\b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2920

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2920-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2920-17-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2920-11-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2920-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2920-10-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2920-22-0x00000000005A0000-0x00000000005E0000-memory.dmp

Filesize
256KB

Download
memory/2920-6-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2920-8-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2920-38-0x0000000074B40000-0x000000007522E000-memory.dmp

Filesize
6.9MB

Download
memory/2920-20-0x0000000074B40000-0x000000007522E000-memory.dmp

Filesize
6.9MB

Download
memory/2920-19-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2964-5-0x00000000051D0000-0x0000000005252000-memory.dmp

Filesize
520KB

Download
memory/2964-0-0x00000000012E0000-0x0000000001380000-memory.dmp

Filesize
640KB

Download
memory/2964-3-0x0000000000420000-0x0000000000432000-memory.dmp

Filesize
72KB

Download
memory/2964-21-0x0000000074B40000-0x000000007522E000-memory.dmp

Filesize
6.9MB

Download
memory/2964-2-0x00000000004A0000-0x00000000004E0000-memory.dmp

Filesize
256KB

Download
memory/2964-1-0x0000000074B40000-0x000000007522E000-memory.dmp

Filesize
6.9MB

Download
memory/2964-4-0x0000000000450000-0x000000000045C000-memory.dmp

Filesize
48KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads