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 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1676-11-0x0000000000400000-0x000000000043C000-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-1-5-21-817259280-2658881748-983986378-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\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-1-5-21-817259280-2658881748-983986378-1000\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 2220 set thread context of 1676 2220 PO CPWPKL-1901088.exe RegSvcs.exe

description	pid	process	target process
PID 2220 set thread context of 1676	2220	PO CPWPKL-1901088.exe	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

PO CPWPKL-1901088.exeRegSvcs.exe

pid	process
2220	PO CPWPKL-1901088.exe
2220	PO CPWPKL-1901088.exe
2220	PO CPWPKL-1901088.exe
2220	PO CPWPKL-1901088.exe
2220	PO CPWPKL-1901088.exe
1676	RegSvcs.exe
1676	RegSvcs.exe
1676	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PO CPWPKL-1901088.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 2220 PO CPWPKL-1901088.exe
Token: SeDebugPrivilege 1676 RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	2220	PO CPWPKL-1901088.exe
Token: SeDebugPrivilege	1676	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

PO CPWPKL-1901088.exe

description	pid	process	target process
PID 2220 wrote to memory of 4568	2220	PO CPWPKL-1901088.exe	RegSvcs.exe
PID 2220 wrote to memory of 4568	2220	PO CPWPKL-1901088.exe	RegSvcs.exe
PID 2220 wrote to memory of 4568	2220	PO CPWPKL-1901088.exe	RegSvcs.exe
PID 2220 wrote to memory of 1676	2220	PO CPWPKL-1901088.exe	RegSvcs.exe
PID 2220 wrote to memory of 1676	2220	PO CPWPKL-1901088.exe	RegSvcs.exe
PID 2220 wrote to memory of 1676	2220	PO CPWPKL-1901088.exe	RegSvcs.exe
PID 2220 wrote to memory of 1676	2220	PO CPWPKL-1901088.exe	RegSvcs.exe
PID 2220 wrote to memory of 1676	2220	PO CPWPKL-1901088.exe	RegSvcs.exe
PID 2220 wrote to memory of 1676	2220	PO CPWPKL-1901088.exe	RegSvcs.exe
PID 2220 wrote to memory of 1676	2220	PO CPWPKL-1901088.exe	RegSvcs.exe
PID 2220 wrote to memory of 1676	2220	PO CPWPKL-1901088.exe	RegSvcs.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\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-1-5-21-817259280-2658881748-983986378-1000\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:2220

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
2⤵
PID:4568

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:1676

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4472 --field-trial-handle=2252,i,3429015581403167983,2708022432612919502,262144 --variations-seed-version /prefetch:8
1⤵
PID:4156

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

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/1676-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1676-23-0x0000000005A30000-0x0000000005A40000-memory.dmp

Filesize
64KB

Download
memory/1676-22-0x0000000001810000-0x0000000001860000-memory.dmp

Filesize
320KB

Download
memory/1676-20-0x0000000005A30000-0x0000000005A40000-memory.dmp

Filesize
64KB

Download
memory/1676-19-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/1676-17-0x00000000067B0000-0x0000000006816000-memory.dmp

Filesize
408KB

Download
memory/1676-16-0x0000000005A00000-0x0000000005A18000-memory.dmp

Filesize
96KB

Download
memory/1676-15-0x0000000005A30000-0x0000000005A40000-memory.dmp

Filesize
64KB

Download
memory/1676-13-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/2220-5-0x0000000005130000-0x000000000513A000-memory.dmp

Filesize
40KB

Download
memory/2220-10-0x0000000006050000-0x00000000060B0000-memory.dmp

Filesize
384KB

Download
memory/2220-9-0x0000000005CC0000-0x0000000005D5C000-memory.dmp

Filesize
624KB

Download
memory/2220-8-0x00000000053B0000-0x00000000053C0000-memory.dmp

Filesize
64KB

Download
memory/2220-14-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/2220-7-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/2220-6-0x00000000052F0000-0x0000000005308000-memory.dmp

Filesize
96KB

Download
memory/2220-0-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/2220-4-0x00000000053B0000-0x00000000053C0000-memory.dmp

Filesize
64KB

Download
memory/2220-3-0x0000000005160000-0x00000000051F2000-memory.dmp

Filesize
584KB

Download
memory/2220-2-0x0000000005710000-0x0000000005CB4000-memory.dmp

Filesize
5.6MB

Download
memory/2220-1-0x00000000006C0000-0x0000000000774000-memory.dmp

Filesize
720KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads