agenttesla | 1845ebd6aaa37eb8a9665af93db7b53e6133a864ba613a376882107d2b1b582c

General

Target

RPLTFL024962021.exe
Size

532KB
MD5

000b20cafe3744650b7247750d511876
SHA1

08204bead740b34c4628daf7888ac0a10db4d146
SHA256

de54f743f7013404a6b143790034fbdc9636f75dfb1d914c6c3176ade71d0e61
SHA512

5669912fa0e06a2e1a34466973e3e6028a83cf0ea7fe64fb5cd79878cb3a2cae01533acdd31d17051bd0baa739804c0af1bd57b0e78367863227155fc50f2f45

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
uscentral50.myserverhosts.com
Port:
587
Username:
[email protected]
Password:
waters@789

Signatures

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

AgentTesla Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1804-124-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/1804-125-0x000000000043764E-mapping.dmp	family_agenttesla
behavioral2/memory/1804-130-0x0000000005550000-0x0000000005A4E000-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-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\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-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

RPLTFL024962021.exe

description pid process target process

PID 1700 set thread context of 1804 1700 RPLTFL024962021.exe RegSvcs.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

RPLTFL024962021.exeRegSvcs.exe

pid process

1700 RPLTFL024962021.exe
1700 RPLTFL024962021.exe
1700 RPLTFL024962021.exe
1700 RPLTFL024962021.exe
1804 RegSvcs.exe
1804 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RPLTFL024962021.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1700 RPLTFL024962021.exe
Token: SeDebugPrivilege 1804 RegSvcs.exe

description	pid	process	target process
PID 1700 set thread context of 1804	1700	RPLTFL024962021.exe	RegSvcs.exe

pid	process
1700	RPLTFL024962021.exe
1700	RPLTFL024962021.exe
1700	RPLTFL024962021.exe
1700	RPLTFL024962021.exe
1804	RegSvcs.exe
1804	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1700	RPLTFL024962021.exe
Token: SeDebugPrivilege	1804	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

RPLTFL024962021.exe

description	pid	process	target process
PID 1700 wrote to memory of 2724	1700	RPLTFL024962021.exe	RegSvcs.exe
PID 1700 wrote to memory of 2724	1700	RPLTFL024962021.exe	RegSvcs.exe
PID 1700 wrote to memory of 2724	1700	RPLTFL024962021.exe	RegSvcs.exe
PID 1700 wrote to memory of 1804	1700	RPLTFL024962021.exe	RegSvcs.exe
PID 1700 wrote to memory of 1804	1700	RPLTFL024962021.exe	RegSvcs.exe
PID 1700 wrote to memory of 1804	1700	RPLTFL024962021.exe	RegSvcs.exe
PID 1700 wrote to memory of 1804	1700	RPLTFL024962021.exe	RegSvcs.exe
PID 1700 wrote to memory of 1804	1700	RPLTFL024962021.exe	RegSvcs.exe
PID 1700 wrote to memory of 1804	1700	RPLTFL024962021.exe	RegSvcs.exe
PID 1700 wrote to memory of 1804	1700	RPLTFL024962021.exe	RegSvcs.exe
PID 1700 wrote to memory of 1804	1700	RPLTFL024962021.exe	RegSvcs.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\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-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\RPLTFL024962021.exe
"C:\Users\Admin\AppData\Local\Temp\RPLTFL024962021.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1700

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
2⤵
PID:2724

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:1804

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

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Downloads

memory/1700-115-0x0000000000F40000-0x0000000000F41000-memory.dmp

Filesize
4KB

Download
memory/1700-117-0x0000000008170000-0x0000000008171000-memory.dmp

Filesize
4KB

Download
memory/1700-118-0x0000000007D10000-0x0000000007D11000-memory.dmp

Filesize
4KB

Download
memory/1700-119-0x00000000057D0000-0x00000000057D1000-memory.dmp

Filesize
4KB

Download
memory/1700-120-0x0000000007CE0000-0x0000000007CE1000-memory.dmp

Filesize
4KB

Download
memory/1700-121-0x0000000008810000-0x0000000008818000-memory.dmp

Filesize
32KB

Download
memory/1700-122-0x000000000DC10000-0x000000000DC11000-memory.dmp

Filesize
4KB

Download
memory/1700-123-0x000000000DCB0000-0x000000000DD08000-memory.dmp

Filesize
352KB

Download
memory/1804-124-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1804-125-0x000000000043764E-mapping.dmp

Download
memory/1804-130-0x0000000005550000-0x0000000005A4E000-memory.dmp

Filesize
5.0MB

Download
memory/1804-131-0x0000000005A10000-0x0000000005A11000-memory.dmp

Filesize
4KB

Download
memory/1804-132-0x00000000062B0000-0x00000000062B1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads