agenttesla | 386e439c334cad078a1cb252fbfe436a79be4a9d652c0f36917e2723fd0e9523

General

Target

INVOICE.exe
Size

890KB
MD5

6f9adf26a738a2cbb5718f9e00c0d8d8
SHA1

4509f91bb3bda2adee0be97234966c273d0dffa2
SHA256

459be0406b2d513ddf97501c0340349f64cab90b6315d16e23e14e4ce0ae845d
SHA512

5a3bb2ee0b9dc0d633a54a3dd84ecaf05d56c1ae41b402440c27398b1eeddfc752e045a9adae48de2a452c03c7b6a22358dcbc3e32f561cc92054b97f88b74b2
SSDEEP

12288:Mftw6zHlEsDd9tmTYEui4JW+h1lWZSe+mI5y10E8uHvoHK7zTqFzKboZT0Fd:+woHlXx9iu3W+/lWZSmI5NE8ykKboyd

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
uscentral50.myserverhosts.com
Port:
587
Username:
[email protected]
Password:
waters@789

Signatures

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

AgentTesla payload 5 IoCs

resource	yara_rule
behavioral1/memory/2836-18-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2836-16-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2836-14-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2836-11-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2836-10-0x0000000000400000-0x000000000043C000-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

Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\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 2236 set thread context of 2836	2236	INVOICE.exe	29

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	INVOICE.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2836	RegSvcs.exe
2836	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2836	RegSvcs.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2836	2236	INVOICE.exe	29
PID 2236 wrote to memory of 2836	2236	INVOICE.exe	29
PID 2236 wrote to memory of 2836	2236	INVOICE.exe	29
PID 2236 wrote to memory of 2836	2236	INVOICE.exe	29
PID 2236 wrote to memory of 2836	2236	INVOICE.exe	29
PID 2236 wrote to memory of 2836	2236	INVOICE.exe	29
PID 2236 wrote to memory of 2836	2236	INVOICE.exe	29
PID 2236 wrote to memory of 2836	2236	INVOICE.exe	29
PID 2236 wrote to memory of 2836	2236	INVOICE.exe	29
PID 2236 wrote to memory of 2836	2236	INVOICE.exe	29
PID 2236 wrote to memory of 2836	2236	INVOICE.exe	29
PID 2236 wrote to memory of 2836	2236	INVOICE.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\INVOICE.exe
"C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2236
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2836

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

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/2236-0-0x0000000074EBE000-0x0000000074EBF000-memory.dmp

Filesize
4KB

Download
memory/2236-1-0x0000000000900000-0x00000000009E4000-memory.dmp

Filesize
912KB

Download
memory/2236-2-0x0000000074EB0000-0x000000007559E000-memory.dmp

Filesize
6.9MB

Download
memory/2236-3-0x0000000000220000-0x0000000000236000-memory.dmp

Filesize
88KB

Download
memory/2236-4-0x0000000074EBE000-0x0000000074EBF000-memory.dmp

Filesize
4KB

Download
memory/2236-5-0x0000000074EB0000-0x000000007559E000-memory.dmp

Filesize
6.9MB

Download
memory/2236-6-0x0000000005370000-0x0000000005410000-memory.dmp

Filesize
640KB

Download
memory/2236-7-0x0000000000B30000-0x0000000000B6C000-memory.dmp

Filesize
240KB

Download
memory/2236-20-0x0000000074EB0000-0x000000007559E000-memory.dmp

Filesize
6.9MB

Download
memory/2836-16-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2836-19-0x0000000074EB0000-0x000000007559E000-memory.dmp

Filesize
6.9MB

Download
memory/2836-14-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2836-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2836-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2836-10-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2836-9-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2836-18-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2836-21-0x0000000074EB0000-0x000000007559E000-memory.dmp

Filesize
6.9MB

Download
memory/2836-8-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2836-22-0x0000000074EB0000-0x000000007559E000-memory.dmp

Filesize
6.9MB

Download
memory/2836-23-0x0000000074EB0000-0x000000007559E000-memory.dmp

Filesize
6.9MB

Download
memory/2836-26-0x0000000074EB0000-0x000000007559E000-memory.dmp

Filesize
6.9MB

Download
memory/2836-27-0x0000000074EB0000-0x000000007559E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads