agenttesla | b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b

General

Target

b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe
Size

1.3MB
MD5

fef8b47ed96b7b9503ca743e26d9846d
SHA1

e44e5c71173a6142e70c13fabe0270f5e03bf993
SHA256

b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b
SHA512

56ceeee9f3e72997d2a4bf55e747aa9c2d3b2536cd58e89587a8b27be64b9d29d5494c2a6933797cfdce9908efa4dcfad00bcdc24ae1c5e3d8471dbdc39a5c98
SSDEEP

24576:EIb4vkU+6dIiQTLliz0xBqBhh14H1v1RIAhjLoamMiX4lNmZg0YxegPbUIDPP:ljYdqdiz0xBuhh1sjLoyEkmZ9Y14

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence privilege_escalation spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
polar.argondns.net
Port:
587
Username:
[email protected]
Password:
q}s=bWo$zLCn

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/1816-10-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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
T1552.001
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
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
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-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4992 set thread context of 1816	4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe	104

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 1 IoCs

Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

discovery

Wi-Fi Discovery

T1016.002

pid	Process
5060	netsh.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4092	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe
4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe
4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe
4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe
4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe
1816	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe
1816	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe
Token: SeDebugPrivilege	1816	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1816	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4992 wrote to memory of 4092	4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe	100
PID 4992 wrote to memory of 4092	4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe	100
PID 4992 wrote to memory of 4092	4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe	100
PID 4992 wrote to memory of 2780	4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe	102
PID 4992 wrote to memory of 2780	4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe	102
PID 4992 wrote to memory of 2780	4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe	102
PID 4992 wrote to memory of 5092	4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe	103
PID 4992 wrote to memory of 5092	4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe	103
PID 4992 wrote to memory of 5092	4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe	103
PID 4992 wrote to memory of 1816	4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe	104
PID 4992 wrote to memory of 1816	4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe	104
PID 4992 wrote to memory of 1816	4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe	104
PID 4992 wrote to memory of 1816	4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe	104
PID 4992 wrote to memory of 1816	4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe	104
PID 4992 wrote to memory of 1816	4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe	104
PID 4992 wrote to memory of 1816	4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe	104
PID 4992 wrote to memory of 1816	4992	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe	104
PID 1816 wrote to memory of 5060	1816	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe	108
PID 1816 wrote to memory of 5060	1816	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe	108
PID 1816 wrote to memory of 5060	1816	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe	108

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe

C:\Users\Admin\AppData\Local\Temp\b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe
"C:\Users\Admin\AppData\Local\Temp\b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4992
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NefovbTgcvrLY" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD86E.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4092
- C:\Users\Admin\AppData\Local\Temp\b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe
  "{path}"
  2⤵
  PID:2780
- C:\Users\Admin\AppData\Local\Temp\b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe
  "{path}"
  2⤵
  PID:5092
- C:\Users\Admin\AppData\Local\Temp\b8b8ee98aece14e848cef5a7c91c40d5b9cb60f4b886053f9cfe99f97a1e670b.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:1816
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Wi-Fi Discovery
    PID:5060

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

5

T1552

Credentials In Files

4

T1552.001

Credentials in Registry

1

T1552.002

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Wi-Fi Discovery

1

T1016.002

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD86E.tmp

Filesize
1KB

MD5
651351526d9a07936fc54cfbc4e97ae7

SHA1
61eabfca35d620ed9f586a159f03036634c3ee01

SHA256
84b65abf42d3fe97c3163b17ed60f9c98c5594630a23519954a9d41e4f44df79

SHA512
2fd1d7e923f02e7055a91d47194130ec1c4d5779d5c7ce9619d21b90ee664b726bbc0bebb6d287f58c0f0f4701195cb21e21edb81df72fd8ee6765c825bc649f

Download Submit
memory/1816-10-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1816-12-0x0000000074960000-0x0000000074F11000-memory.dmp

Filesize
5.7MB

Download
memory/1816-15-0x0000000074960000-0x0000000074F11000-memory.dmp

Filesize
5.7MB

Download
memory/1816-13-0x0000000074960000-0x0000000074F11000-memory.dmp

Filesize
5.7MB

Download
memory/1816-16-0x0000000074960000-0x0000000074F11000-memory.dmp

Filesize
5.7MB

Download
memory/4992-0-0x0000000074962000-0x0000000074963000-memory.dmp

Filesize
4KB

Download
memory/4992-1-0x0000000074960000-0x0000000074F11000-memory.dmp

Filesize
5.7MB

Download
memory/4992-2-0x0000000074960000-0x0000000074F11000-memory.dmp

Filesize
5.7MB

Download
memory/4992-3-0x0000000074962000-0x0000000074963000-memory.dmp

Filesize
4KB

Download
memory/4992-4-0x0000000074960000-0x0000000074F11000-memory.dmp

Filesize
5.7MB

Download
memory/4992-14-0x0000000074960000-0x0000000074F11000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads