agenttesla | 2f1a6b566dc0d2b8e5fcdcf67adc0be912f73fe14c27b262b610dfcd03cd4686

Analysis

max time kernel
143s
max time network
144s
platform
windows10_x64
resource
win10v20201028
submitted
15/03/2021, 09:50

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General

Target

Downloads1/61f2d6fa249bfd74e59d8f6d50191c62490fc690f7fb035fe2133b4566b38a89.exe
Size

236KB
MD5

e1618002c8700b4ae261b1e5aea00e42
SHA1

71a93b760fb4c0ee6201ea09a19b50fd46d0439f
SHA256

61f2d6fa249bfd74e59d8f6d50191c62490fc690f7fb035fe2133b4566b38a89
SHA512

264a802e3e9e406d4a3f42d518a1ee1d6492cc012489c22525f1476375d73008e9b79d85f789f6d321b39800374fefbfa671031e4db6e247a152205cf4f76b3a

Score

10^/10

agenttesla evasion keylogger persistence spyware stealer trojan

Malware Config

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

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-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\First Data Corp = "C:\\Users\\Admin\\AppData\\Local\\Temp\\First Data Corp\\First Data Corp.exe"	61f2d6fa249bfd74e59d8f6d50191c62490fc690f7fb035fe2133b4566b38a89.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	61f2d6fa249bfd74e59d8f6d50191c62490fc690f7fb035fe2133b4566b38a89.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
10	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1284 set thread context of 3740	1284	61f2d6fa249bfd74e59d8f6d50191c62490fc690f7fb035fe2133b4566b38a89.exe	75

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3740	61f2d6fa249bfd74e59d8f6d50191c62490fc690f7fb035fe2133b4566b38a89.exe
3740	61f2d6fa249bfd74e59d8f6d50191c62490fc690f7fb035fe2133b4566b38a89.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1284	61f2d6fa249bfd74e59d8f6d50191c62490fc690f7fb035fe2133b4566b38a89.exe
Token: SeDebugPrivilege	3740	61f2d6fa249bfd74e59d8f6d50191c62490fc690f7fb035fe2133b4566b38a89.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3740	61f2d6fa249bfd74e59d8f6d50191c62490fc690f7fb035fe2133b4566b38a89.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1284 wrote to memory of 3740	1284	61f2d6fa249bfd74e59d8f6d50191c62490fc690f7fb035fe2133b4566b38a89.exe	75
PID 1284 wrote to memory of 3740	1284	61f2d6fa249bfd74e59d8f6d50191c62490fc690f7fb035fe2133b4566b38a89.exe	75
PID 1284 wrote to memory of 3740	1284	61f2d6fa249bfd74e59d8f6d50191c62490fc690f7fb035fe2133b4566b38a89.exe	75
PID 1284 wrote to memory of 3740	1284	61f2d6fa249bfd74e59d8f6d50191c62490fc690f7fb035fe2133b4566b38a89.exe	75
PID 1284 wrote to memory of 3740	1284	61f2d6fa249bfd74e59d8f6d50191c62490fc690f7fb035fe2133b4566b38a89.exe	75
PID 1284 wrote to memory of 3740	1284	61f2d6fa249bfd74e59d8f6d50191c62490fc690f7fb035fe2133b4566b38a89.exe	75
PID 1284 wrote to memory of 3740	1284	61f2d6fa249bfd74e59d8f6d50191c62490fc690f7fb035fe2133b4566b38a89.exe	75
PID 1284 wrote to memory of 3740	1284	61f2d6fa249bfd74e59d8f6d50191c62490fc690f7fb035fe2133b4566b38a89.exe	75

C:\Users\Admin\AppData\Local\Temp\Downloads1\61f2d6fa249bfd74e59d8f6d50191c62490fc690f7fb035fe2133b4566b38a89.exe
"C:\Users\Admin\AppData\Local\Temp\Downloads1\61f2d6fa249bfd74e59d8f6d50191c62490fc690f7fb035fe2133b4566b38a89.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1284
- C:\Users\Admin\AppData\Local\Temp\Downloads1\61f2d6fa249bfd74e59d8f6d50191c62490fc690f7fb035fe2133b4566b38a89.exe
  "C:\Users\Admin\AppData\Local\Temp\Downloads1\61f2d6fa249bfd74e59d8f6d50191c62490fc690f7fb035fe2133b4566b38a89.exe"
  2⤵
  - Checks whether UAC is enabled
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3740

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

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1284-2-0x0000000002640000-0x0000000002641000-memory.dmp

Filesize
4KB

Download
memory/3740-3-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3740-6-0x0000000002810000-0x0000000002811000-memory.dmp

Filesize
4KB

Download
memory/3740-7-0x0000000002811000-0x0000000002812000-memory.dmp

Filesize
4KB

Download