agenttesla | 859d7c1d836ca442f3d913a7293703b728d7241ef83ad5d8ead7303ed590fd21

General

Target

PO CPWPKL-1901088.exe
Size

704KB
MD5

1a19bb4c028d7943e65587dc94f38ffc
SHA1

7a0a462391f53d3421862125b944b1cef9ae988e
SHA256

dbf947a367cfe28cc7e5e33af9d8aa7fe3166d74d787200b1bcce777ac65efcf
SHA512

d70f384366ed59e53037547c1390aab369a7840544c11ee4b6a330751f7454be20f76c9e9be0f135ee3b3a6214fdd322d97bccbdd16b1c9b970fd667694fb601
SSDEEP

12288:wgxRTlOaEQFD6m7kyR3HrHeu0YuizEEwreL:jOaRFHkGHr+u5EE4

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
sg2plcpnl0023.prod.sin2.secureserver.net
Port:
587
Username:
[email protected]
Password:
User@40378

Signatures

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

AgentTesla payload 7 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2884-8-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2884-10-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2884-14-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2884-16-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2884-18-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2884-21-0x0000000004A80000-0x0000000004AC0000-memory.dmp	family_agenttesla
behavioral1/memory/2884-24-0x0000000004A80000-0x0000000004AC0000-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-1-5-21-778096762-2241304387-192235952-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000\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

T1547.001

Modify Registry

T1112

Processes:

RegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000\Software\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

PO CPWPKL-1901088.exe

description pid process target process

PID 1732 set thread context of 2884 1732 PO CPWPKL-1901088.exe RegSvcs.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

PO CPWPKL-1901088.exeRegSvcs.exe

pid process

1732 PO CPWPKL-1901088.exe
1732 PO CPWPKL-1901088.exe
2884 RegSvcs.exe
2884 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PO CPWPKL-1901088.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1732 PO CPWPKL-1901088.exe
Token: SeDebugPrivilege 2884 RegSvcs.exe

description	pid	process	target process
PID 1732 set thread context of 2884	1732	PO CPWPKL-1901088.exe	RegSvcs.exe

pid	process
1732	PO CPWPKL-1901088.exe
1732	PO CPWPKL-1901088.exe
2884	RegSvcs.exe
2884	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1732	PO CPWPKL-1901088.exe
Token: SeDebugPrivilege	2884	RegSvcs.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

PO CPWPKL-1901088.exe

description	pid	process	target process
PID 1732 wrote to memory of 2884	1732	PO CPWPKL-1901088.exe	RegSvcs.exe
PID 1732 wrote to memory of 2884	1732	PO CPWPKL-1901088.exe	RegSvcs.exe
PID 1732 wrote to memory of 2884	1732	PO CPWPKL-1901088.exe	RegSvcs.exe
PID 1732 wrote to memory of 2884	1732	PO CPWPKL-1901088.exe	RegSvcs.exe
PID 1732 wrote to memory of 2884	1732	PO CPWPKL-1901088.exe	RegSvcs.exe
PID 1732 wrote to memory of 2884	1732	PO CPWPKL-1901088.exe	RegSvcs.exe
PID 1732 wrote to memory of 2884	1732	PO CPWPKL-1901088.exe	RegSvcs.exe
PID 1732 wrote to memory of 2884	1732	PO CPWPKL-1901088.exe	RegSvcs.exe
PID 1732 wrote to memory of 2884	1732	PO CPWPKL-1901088.exe	RegSvcs.exe
PID 1732 wrote to memory of 2884	1732	PO CPWPKL-1901088.exe	RegSvcs.exe
PID 1732 wrote to memory of 2884	1732	PO CPWPKL-1901088.exe	RegSvcs.exe
PID 1732 wrote to memory of 2884	1732	PO CPWPKL-1901088.exe	RegSvcs.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000\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-1-5-21-778096762-2241304387-192235952-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\PO CPWPKL-1901088.exe
"C:\Users\Admin\AppData\Local\Temp\PO CPWPKL-1901088.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1732

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:2884

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

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

memory/1732-1-0x0000000074030000-0x000000007471E000-memory.dmp

Filesize
6.9MB

Download
memory/1732-0-0x0000000000110000-0x00000000001C4000-memory.dmp

Filesize
720KB

Download
memory/1732-2-0x0000000000450000-0x0000000000490000-memory.dmp

Filesize
256KB

Download
memory/1732-3-0x0000000000300000-0x0000000000318000-memory.dmp

Filesize
96KB

Download
memory/1732-4-0x0000000074030000-0x000000007471E000-memory.dmp

Filesize
6.9MB

Download
memory/1732-5-0x0000000004370000-0x00000000043D0000-memory.dmp

Filesize
384KB

Download
memory/1732-19-0x0000000074030000-0x000000007471E000-memory.dmp

Filesize
6.9MB

Download
memory/2884-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2884-8-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2884-10-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2884-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2884-14-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2884-16-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2884-18-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2884-6-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2884-20-0x0000000074030000-0x000000007471E000-memory.dmp

Filesize
6.9MB

Download
memory/2884-21-0x0000000004A80000-0x0000000004AC0000-memory.dmp

Filesize
256KB

Download
memory/2884-23-0x0000000074030000-0x000000007471E000-memory.dmp

Filesize
6.9MB

Download
memory/2884-24-0x0000000004A80000-0x0000000004AC0000-memory.dmp

Filesize
256KB

Download
memory/2884-26-0x0000000004A80000-0x0000000004AC0000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads