agenttesla | 8be3d9fb5ce2c1c187244380cd93ae8282b3e1b9c8f2dfc00a935c078bf464e3

General

Target

PqtuwQbAQoqcY27.exe
Size

468KB
MD5

b77e4a6f2c6abab6cf1dc6d4ab5dac2a
SHA1

a9c585aac523a7d643b5fbf5c6e722123a5f9dde
SHA256

bc83ce6a585ef0217f5088832b31be76b70a4e3b2c6e8212995c64cf71b7ded4
SHA512

331977a56172144cf6c8d21ec091a3b913c7815242433335651a5d1c99c4b11a484246fc5b5fd05c89fdc54b64a8731f136c3698c646d1b8b9b753da3388bdc0

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.upgcambodia.com
Port:
587
Username:
stock@upgcambodia.com
Password:
stock3168

Signatures

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

AgentTesla Payload 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3764-124-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/3764-125-0x000000000043761E-mapping.dmp	family_agenttesla
behavioral2/memory/3764-130-0x0000000005550000-0x0000000005A4E000-memory.dmp	family_agenttesla
behavioral2/memory/3764-135-0x0000000005550000-0x0000000005A4E000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

RegSvcs.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegSvcs.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

PqtuwQbAQoqcY27.exe

description pid process target process

PID 1832 set thread context of 3764 1832 PqtuwQbAQoqcY27.exe RegSvcs.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

PqtuwQbAQoqcY27.exeRegSvcs.exe

pid process

1832 PqtuwQbAQoqcY27.exe
1832 PqtuwQbAQoqcY27.exe
1832 PqtuwQbAQoqcY27.exe
1832 PqtuwQbAQoqcY27.exe
3764 RegSvcs.exe
3764 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PqtuwQbAQoqcY27.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1832 PqtuwQbAQoqcY27.exe
Token: SeDebugPrivilege 3764 RegSvcs.exe

description	pid	process	target process
PID 1832 set thread context of 3764	1832	PqtuwQbAQoqcY27.exe	RegSvcs.exe

pid	process
1832	PqtuwQbAQoqcY27.exe
1832	PqtuwQbAQoqcY27.exe
1832	PqtuwQbAQoqcY27.exe
1832	PqtuwQbAQoqcY27.exe
3764	RegSvcs.exe
3764	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1832	PqtuwQbAQoqcY27.exe
Token: SeDebugPrivilege	3764	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

PqtuwQbAQoqcY27.exe

description	pid	process	target process
PID 1832 wrote to memory of 3420	1832	PqtuwQbAQoqcY27.exe	RegSvcs.exe
PID 1832 wrote to memory of 3420	1832	PqtuwQbAQoqcY27.exe	RegSvcs.exe
PID 1832 wrote to memory of 3420	1832	PqtuwQbAQoqcY27.exe	RegSvcs.exe
PID 1832 wrote to memory of 3764	1832	PqtuwQbAQoqcY27.exe	RegSvcs.exe
PID 1832 wrote to memory of 3764	1832	PqtuwQbAQoqcY27.exe	RegSvcs.exe
PID 1832 wrote to memory of 3764	1832	PqtuwQbAQoqcY27.exe	RegSvcs.exe
PID 1832 wrote to memory of 3764	1832	PqtuwQbAQoqcY27.exe	RegSvcs.exe
PID 1832 wrote to memory of 3764	1832	PqtuwQbAQoqcY27.exe	RegSvcs.exe
PID 1832 wrote to memory of 3764	1832	PqtuwQbAQoqcY27.exe	RegSvcs.exe
PID 1832 wrote to memory of 3764	1832	PqtuwQbAQoqcY27.exe	RegSvcs.exe
PID 1832 wrote to memory of 3764	1832	PqtuwQbAQoqcY27.exe	RegSvcs.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\PqtuwQbAQoqcY27.exe
"C:\Users\Admin\AppData\Local\Temp\PqtuwQbAQoqcY27.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1832

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
2⤵
PID:3420

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3764

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1832-115-0x0000000000050000-0x0000000000051000-memory.dmp

Filesize
4KB

Download
memory/1832-117-0x0000000004E50000-0x0000000004E51000-memory.dmp

Filesize
4KB

Download
memory/1832-118-0x00000000049F0000-0x00000000049F1000-memory.dmp

Filesize
4KB

Download
memory/1832-119-0x0000000004950000-0x0000000004E4E000-memory.dmp

Filesize
5.0MB

Download
memory/1832-120-0x00000000048F0000-0x00000000048F1000-memory.dmp

Filesize
4KB

Download
memory/1832-121-0x0000000004C10000-0x0000000004C17000-memory.dmp

Filesize
28KB

Download
memory/1832-122-0x00000000056F0000-0x00000000056F1000-memory.dmp

Filesize
4KB

Download
memory/1832-123-0x0000000005790000-0x00000000057E8000-memory.dmp

Filesize
352KB

Download
memory/3764-124-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3764-125-0x000000000043761E-mapping.dmp

Download
memory/3764-130-0x0000000005550000-0x0000000005A4E000-memory.dmp

Filesize
5.0MB

Download
memory/3764-131-0x00000000055D0000-0x00000000055D1000-memory.dmp

Filesize
4KB

Download
memory/3764-132-0x0000000006340000-0x0000000006341000-memory.dmp

Filesize
4KB

Download
memory/3764-135-0x0000000005550000-0x0000000005A4E000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads