agenttesla | 4fb5377736624d79dfce363b511b8ea682556789140aa24a7045553eb237bc05

Analysis

max time kernel
141s
max time network
114s
platform
windows10_x64
resource
win10v20210408
submitted
13/10/2021, 09:18

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General

Target
Swift copy.exe
Size 523KB
Sample211013-k9mprsdgh5
SHA256 4fb5377736624d79dfce363b511b8ea682556789140aa24a7045553eb237bc05
MD5 e72cfc505a04738c223b68891648a3a6
SHA1 83e41cc20431e1a4a09e8bf1a851327fc5dd417a
SHA512 d4beee29bf68ec475d062e324f43ea07ea4e0faa65b87c009dcaafc4cc4faa0ae8f83684d593b01292f47a9f9602522e0b622783c41630d6996f9c42a29b7ef9
MD5 SHA1 SHA512

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 3 IoCs

resource	yara_rule
behavioral2/memory/1380-124-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/1380-125-0x000000000043760E-mapping.dmp	family_agenttesla
behavioral2/memory/1380-130-0x0000000004F70000-0x000000000546E000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3628 set thread context of 1380	3628	Swift copy.exe	76

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3628	Swift copy.exe
3628	Swift copy.exe
1380	RegSvcs.exe
1380	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3628	Swift copy.exe
Token: SeDebugPrivilege	1380	RegSvcs.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3628 wrote to memory of 1380	3628	Swift copy.exe	76
PID 3628 wrote to memory of 1380	3628	Swift copy.exe	76
PID 3628 wrote to memory of 1380	3628	Swift copy.exe	76
PID 3628 wrote to memory of 1380	3628	Swift copy.exe	76
PID 3628 wrote to memory of 1380	3628	Swift copy.exe	76
PID 3628 wrote to memory of 1380	3628	Swift copy.exe	76
PID 3628 wrote to memory of 1380	3628	Swift copy.exe	76
PID 3628 wrote to memory of 1380	3628	Swift copy.exe	76

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Swift copy.exe
"C:\Users\Admin\AppData\Local\Temp\Swift copy.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3628
- 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:1380

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/1380-124-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/1380-135-0x0000000004F70000-0x000000000546E000-memory.dmp

Download

memory/1380-132-0x0000000005D60000-0x0000000005D61000-memory.dmp

Download

memory/1380-131-0x00000000053D0000-0x00000000053D1000-memory.dmp

Download

memory/1380-130-0x0000000004F70000-0x000000000546E000-memory.dmp

Download

memory/3628-118-0x0000000004DC0000-0x0000000004DC1000-memory.dmp

Download

memory/3628-122-0x00000000070F0000-0x00000000070F1000-memory.dmp

Download

memory/3628-123-0x0000000006A30000-0x0000000006A88000-memory.dmp

Download

memory/3628-121-0x0000000005130000-0x0000000005135000-memory.dmp

Download

memory/3628-120-0x0000000004C00000-0x0000000004C01000-memory.dmp

Download

memory/3628-119-0x0000000004C40000-0x000000000513E000-memory.dmp

Download

memory/3628-114-0x00000000001E0000-0x00000000001E1000-memory.dmp

Download

memory/3628-117-0x0000000004C40000-0x0000000004C41000-memory.dmp

Download

memory/3628-116-0x0000000005140000-0x0000000005141000-memory.dmp

Download