agenttesla | 3b44d7b9e79bd392575e4dee8c5cab8b3105cf6aafaa695cc3480f24bb1a91f9

General

Target

Purchase order.exe
Size

395KB
MD5

19ed94f5448950a9d5bcd63228a635b3
SHA1

e7a88d2e71f82ac41195e766a47d1b9fd497ffd1
SHA256

057d53666aa40a761b4b096b884862cc108552bcb3a46bc92af7033e720612df
SHA512

036b3736308545aea0d341c1c2ccd7156ac5ba37f9f8fe442104d814c145022f715b6b0fa126a76e1f6bc80119486091b7b85b1ccdc7284544a90057451e3333

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 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1652-126-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/1652-127-0x000000000043760E-mapping.dmp	family_agenttesla
behavioral2/memory/1652-132-0x0000000004980000-0x0000000004E7E000-memory.dmp	family_agenttesla
behavioral2/memory/1652-137-0x0000000004980000-0x0000000004E7E000-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:

Purchase order.exe

description pid process target process

PID 1816 set thread context of 1652 1816 Purchase order.exe RegSvcs.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Purchase order.exeRegSvcs.exe

pid process

1816 Purchase order.exe
1816 Purchase order.exe
1652 RegSvcs.exe
1652 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Purchase order.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1816 Purchase order.exe
Token: SeDebugPrivilege 1652 RegSvcs.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

Purchase order.exe

pid process

1816 Purchase order.exe
1816 Purchase order.exe

description	pid	process	target process
PID 1816 set thread context of 1652	1816	Purchase order.exe	RegSvcs.exe

pid	process
1816	Purchase order.exe
1816	Purchase order.exe
1652	RegSvcs.exe
1652	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1816	Purchase order.exe
Token: SeDebugPrivilege	1652	RegSvcs.exe

pid	process
1816	Purchase order.exe
1816	Purchase order.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

Purchase order.exe

description	pid	process	target process
PID 1816 wrote to memory of 1652	1816	Purchase order.exe	RegSvcs.exe
PID 1816 wrote to memory of 1652	1816	Purchase order.exe	RegSvcs.exe
PID 1816 wrote to memory of 1652	1816	Purchase order.exe	RegSvcs.exe
PID 1816 wrote to memory of 1652	1816	Purchase order.exe	RegSvcs.exe
PID 1816 wrote to memory of 1652	1816	Purchase order.exe	RegSvcs.exe
PID 1816 wrote to memory of 1652	1816	Purchase order.exe	RegSvcs.exe
PID 1816 wrote to memory of 1652	1816	Purchase order.exe	RegSvcs.exe
PID 1816 wrote to memory of 1652	1816	Purchase order.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\Purchase order.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1816
- 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:1652

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

Replay Monitor

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Downloads

memory/1652-126-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1652-137-0x0000000004980000-0x0000000004E7E000-memory.dmp

Filesize
5.0MB

Download
memory/1652-134-0x0000000005670000-0x0000000005671000-memory.dmp

Filesize
4KB

Download
memory/1652-133-0x00000000049F0000-0x00000000049F1000-memory.dmp

Filesize
4KB

Download
memory/1652-132-0x0000000004980000-0x0000000004E7E000-memory.dmp

Filesize
5.0MB

Download
memory/1652-127-0x000000000043760E-mapping.dmp

Download
memory/1816-120-0x0000000005AA0000-0x0000000005AA1000-memory.dmp

Filesize
4KB

Download
memory/1816-123-0x0000000009C20000-0x0000000009C28000-memory.dmp

Filesize
32KB

Download
memory/1816-124-0x0000000009CE0000-0x0000000009CE1000-memory.dmp

Filesize
4KB

Download
memory/1816-125-0x0000000009D80000-0x0000000009DD8000-memory.dmp

Filesize
352KB

Download
memory/1816-122-0x0000000005930000-0x0000000005E2E000-memory.dmp

Filesize
5.0MB

Download
memory/1816-121-0x0000000005930000-0x0000000005E2E000-memory.dmp

Filesize
5.0MB

Download
memory/1816-115-0x0000000000F30000-0x0000000000F31000-memory.dmp

Filesize
4KB

Download
memory/1816-119-0x0000000005930000-0x0000000005E2E000-memory.dmp

Filesize
5.0MB

Download
memory/1816-118-0x0000000005930000-0x0000000005931000-memory.dmp

Filesize
4KB

Download
memory/1816-117-0x0000000005E30000-0x0000000005E31000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads