agenttesla | e609b0840d4e812a94c5955be5718583a4f589ad7dcc7e0893164d50bd000bd9

General

Target

$PLUGINSDIR/ojbixxjlzk.dll
Size

30KB
MD5

f5480d6c032845135dff9ebf66c46d76
SHA1

e76f6c75aca31ab5c1ff4695b45ec49daef23256
SHA256

13f7ffcefcbba343a302edaf9ceccefcf6dbae294bb9a735869d9f3fc7c522dd
SHA512

5164a9c8c470308a17a82f39209ea734893c7f5ccbafe9fe67bc98bb70432f46dd5faad61ad6dd8da86a88d89eb6deefb5d626abffd4ed8e8e72eba6c314d575
SSDEEP

768:5YH4sBQJDh7wN4Ce1UtpWOPO8P9MuVnu+OGTYgFD:5IBQJDKLPO8P9Pnu+OIh

Score

10^/10

agenttesla collection credential_access discovery 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

AgentTesla payload 4 IoCs

resource	yara_rule
behavioral3/memory/3008-1-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral3/memory/3008-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral3/memory/3008-4-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral3/memory/3008-8-0x00000000001C0000-0x00000000001FC000-memory.dmp	family_agenttesla

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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rundll32.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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\bin2 = "C:\\Users\\Admin\\AppData\\Roaming\\bin2\\bin2.exe"	rundll32.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2204 set thread context of 3008	2204	rundll32.exe	31

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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3008	rundll32.exe
3008	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3008	rundll32.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2188 wrote to memory of 2204	2188	rundll32.exe	30
PID 2188 wrote to memory of 2204	2188	rundll32.exe	30
PID 2188 wrote to memory of 2204	2188	rundll32.exe	30
PID 2188 wrote to memory of 2204	2188	rundll32.exe	30
PID 2188 wrote to memory of 2204	2188	rundll32.exe	30
PID 2188 wrote to memory of 2204	2188	rundll32.exe	30
PID 2188 wrote to memory of 2204	2188	rundll32.exe	30
PID 2204 wrote to memory of 3008	2204	rundll32.exe	31
PID 2204 wrote to memory of 3008	2204	rundll32.exe	31
PID 2204 wrote to memory of 3008	2204	rundll32.exe	31
PID 2204 wrote to memory of 3008	2204	rundll32.exe	31
PID 2204 wrote to memory of 3008	2204	rundll32.exe	31
PID 2204 wrote to memory of 3008	2204	rundll32.exe	31
PID 2204 wrote to memory of 3008	2204	rundll32.exe	31
PID 2204 wrote to memory of 3008	2204	rundll32.exe	31
PID 2204 wrote to memory of 3008	2204	rundll32.exe	31
PID 2204 wrote to memory of 3008	2204	rundll32.exe	31
PID 2204 wrote to memory of 3008	2204	rundll32.exe	31
PID 2204 wrote to memory of 3008	2204	rundll32.exe	31
PID 2204 wrote to memory of 3008	2204	rundll32.exe	31
PID 2204 wrote to memory of 3008	2204	rundll32.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rundll32.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\ojbixxjlzk.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2188
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\ojbixxjlzk.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2204
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\ojbixxjlzk.dll,#1
    3⤵
    - 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:3008

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

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2204-2-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/2204-0-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/3008-8-0x00000000001C0000-0x00000000001FC000-memory.dmp

Filesize
240KB

Download
memory/3008-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3008-4-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3008-7-0x00000000744BE000-0x00000000744BF000-memory.dmp

Filesize
4KB

Download
memory/3008-1-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3008-9-0x00000000744B0000-0x0000000074B9E000-memory.dmp

Filesize
6.9MB

Download
memory/3008-11-0x00000000744B0000-0x0000000074B9E000-memory.dmp

Filesize
6.9MB

Download
memory/3008-10-0x00000000744B0000-0x0000000074B9E000-memory.dmp

Filesize
6.9MB

Download
memory/3008-12-0x00000000744BE000-0x00000000744BF000-memory.dmp

Filesize
4KB

Download
memory/3008-13-0x00000000744B0000-0x0000000074B9E000-memory.dmp

Filesize
6.9MB

Download
memory/3008-14-0x00000000744B0000-0x0000000074B9E000-memory.dmp

Filesize
6.9MB

Download
memory/3008-15-0x00000000744B0000-0x0000000074B9E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads