agenttesla | e6306620e2adc8f1156897260b7d7b0a52b21990ac0ce957adfdc4a8b37eb133

General

Target

PO #18703-A.exe
Size

372KB
MD5

b9b1a4892fbdf335918eca0ee1cb98c6
SHA1

7b4a56e63341d38dfa0ee54399afe2e233a62bd7
SHA256

4c0efa3fe44849d5405a515cbd3e89c5b72280d2cc378a05c704de4a5ec79147
SHA512

61d76e74a4875d29f8b5fce950ebffbc56e995557c65e3894262dd5703ea22c744f5c05b7f23880ccb453d980c80d7f05ba0df71d121e9d4edf29e96b900d2a1

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
project2021blessing

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/3172-124-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/3172-125-0x000000000043762E-mapping.dmp	family_agenttesla
behavioral2/memory/3172-130-0x0000000004EC0000-0x00000000053BE000-memory.dmp	family_agenttesla
behavioral2/memory/3172-135-0x0000000004EC0000-0x00000000053BE000-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:

PO #18703-A.exe

description pid process target process

PID 2728 set thread context of 3172 2728 PO #18703-A.exe RegSvcs.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

PO #18703-A.exeRegSvcs.exe

pid process

2728 PO #18703-A.exe
2728 PO #18703-A.exe
3172 RegSvcs.exe
3172 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PO #18703-A.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 2728 PO #18703-A.exe
Token: SeDebugPrivilege 3172 RegSvcs.exe

description	pid	process	target process
PID 2728 set thread context of 3172	2728	PO #18703-A.exe	RegSvcs.exe

pid	process
2728	PO #18703-A.exe
2728	PO #18703-A.exe
3172	RegSvcs.exe
3172	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	2728	PO #18703-A.exe
Token: SeDebugPrivilege	3172	RegSvcs.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

PO #18703-A.exe

description	pid	process	target process
PID 2728 wrote to memory of 3172	2728	PO #18703-A.exe	RegSvcs.exe
PID 2728 wrote to memory of 3172	2728	PO #18703-A.exe	RegSvcs.exe
PID 2728 wrote to memory of 3172	2728	PO #18703-A.exe	RegSvcs.exe
PID 2728 wrote to memory of 3172	2728	PO #18703-A.exe	RegSvcs.exe
PID 2728 wrote to memory of 3172	2728	PO #18703-A.exe	RegSvcs.exe
PID 2728 wrote to memory of 3172	2728	PO #18703-A.exe	RegSvcs.exe
PID 2728 wrote to memory of 3172	2728	PO #18703-A.exe	RegSvcs.exe
PID 2728 wrote to memory of 3172	2728	PO #18703-A.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\PO #18703-A.exe
"C:\Users\Admin\AppData\Local\Temp\PO #18703-A.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2728
- 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:3172

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

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Downloads

memory/2728-115-0x00000000009F0000-0x00000000009F1000-memory.dmp

Filesize
4KB

Download
memory/2728-117-0x0000000005980000-0x0000000005981000-memory.dmp

Filesize
4KB

Download
memory/2728-118-0x00000000053C0000-0x00000000053C1000-memory.dmp

Filesize
4KB

Download
memory/2728-119-0x0000000005320000-0x00000000053B2000-memory.dmp

Filesize
584KB

Download
memory/2728-120-0x00000000057D0000-0x00000000057D1000-memory.dmp

Filesize
4KB

Download
memory/2728-121-0x00000000057A0000-0x00000000057A7000-memory.dmp

Filesize
28KB

Download
memory/2728-122-0x0000000006180000-0x0000000006181000-memory.dmp

Filesize
4KB

Download
memory/2728-123-0x0000000005910000-0x0000000005968000-memory.dmp

Filesize
352KB

Download
memory/3172-124-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3172-125-0x000000000043762E-mapping.dmp

Download
memory/3172-130-0x0000000004EC0000-0x00000000053BE000-memory.dmp

Filesize
5.0MB

Download
memory/3172-131-0x0000000004E90000-0x0000000004E91000-memory.dmp

Filesize
4KB

Download
memory/3172-132-0x0000000005BB0000-0x0000000005BB1000-memory.dmp

Filesize
4KB

Download
memory/3172-135-0x0000000004EC0000-0x00000000053BE000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads