agenttesla | 358c99f5f11faa788a617eae44e7d676dfbf51ba3f1cc0348f03676f7ceea8ee

Analysis

max time kernel
131s
max time network
136s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 13:44

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General

Target

captured_malware/6Dy0Bg4B9kkMsak.exe
Size

1.3MB
MD5

103d1cc218855c90217da5eab8cf7761
SHA1

2ef02a66a694e86498710e84c81ab722b7b82e62
SHA256

d4ac7a72eeea3ab4a778123b1ee1b804181a7d24b0e380f2874e68937de34cd6
SHA512

359437ce7e7bd4ad15cf44bb3c186901a5c88bbaf4061e5dd8ae26777854175bd7e0df11b91278dbe37049598190ab7af5ecfacbe9c05339e6a17a8396ba06bd
SSDEEP

24576:BsLS/d3PYdkAZhYpW1Vsvj/M9zx6U5cuR9A+mwRGPoN7vdiTbnFM:wrZhX1VC/M9F6U5cc9jm/PoiM

Score

10^/10

agenttesla collection credential_access discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.duncanmaritime.com
Port:
587
Username:
[email protected]
Password:
Duncan1234@

Signatures

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

AgentTesla payload 5 IoCs

resource	yara_rule
behavioral11/memory/2484-24-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral11/memory/2484-32-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral11/memory/2484-30-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral11/memory/2484-29-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral11/memory/2484-26-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

resource	yara_rule
behavioral11/memory/2756-3-0x0000000000380000-0x0000000000392000-memory.dmp	CustAttr

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1548	powershell.exe
2232	powershell.exe
2916	powershell.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6Dy0Bg4B9kkMsak.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6Dy0Bg4B9kkMsak.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6Dy0Bg4B9kkMsak.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2756 set thread context of 2484	2756	6Dy0Bg4B9kkMsak.exe	37

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6Dy0Bg4B9kkMsak.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6Dy0Bg4B9kkMsak.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
2872	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2484	6Dy0Bg4B9kkMsak.exe
2756	6Dy0Bg4B9kkMsak.exe
2484	6Dy0Bg4B9kkMsak.exe
1548	powershell.exe
2232	powershell.exe
2916	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2484	6Dy0Bg4B9kkMsak.exe
Token: SeDebugPrivilege	2756	6Dy0Bg4B9kkMsak.exe
Token: SeDebugPrivilege	1548	powershell.exe
Token: SeDebugPrivilege	2916	powershell.exe
Token: SeDebugPrivilege	2232	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2484	6Dy0Bg4B9kkMsak.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 1548	2756	6Dy0Bg4B9kkMsak.exe	30
PID 2756 wrote to memory of 1548	2756	6Dy0Bg4B9kkMsak.exe	30
PID 2756 wrote to memory of 1548	2756	6Dy0Bg4B9kkMsak.exe	30
PID 2756 wrote to memory of 1548	2756	6Dy0Bg4B9kkMsak.exe	30
PID 2756 wrote to memory of 2232	2756	6Dy0Bg4B9kkMsak.exe	32
PID 2756 wrote to memory of 2232	2756	6Dy0Bg4B9kkMsak.exe	32
PID 2756 wrote to memory of 2232	2756	6Dy0Bg4B9kkMsak.exe	32
PID 2756 wrote to memory of 2232	2756	6Dy0Bg4B9kkMsak.exe	32
PID 2756 wrote to memory of 2872	2756	6Dy0Bg4B9kkMsak.exe	33
PID 2756 wrote to memory of 2872	2756	6Dy0Bg4B9kkMsak.exe	33
PID 2756 wrote to memory of 2872	2756	6Dy0Bg4B9kkMsak.exe	33
PID 2756 wrote to memory of 2872	2756	6Dy0Bg4B9kkMsak.exe	33
PID 2756 wrote to memory of 2916	2756	6Dy0Bg4B9kkMsak.exe	36
PID 2756 wrote to memory of 2916	2756	6Dy0Bg4B9kkMsak.exe	36
PID 2756 wrote to memory of 2916	2756	6Dy0Bg4B9kkMsak.exe	36
PID 2756 wrote to memory of 2916	2756	6Dy0Bg4B9kkMsak.exe	36
PID 2756 wrote to memory of 2484	2756	6Dy0Bg4B9kkMsak.exe	37
PID 2756 wrote to memory of 2484	2756	6Dy0Bg4B9kkMsak.exe	37
PID 2756 wrote to memory of 2484	2756	6Dy0Bg4B9kkMsak.exe	37
PID 2756 wrote to memory of 2484	2756	6Dy0Bg4B9kkMsak.exe	37
PID 2756 wrote to memory of 2484	2756	6Dy0Bg4B9kkMsak.exe	37
PID 2756 wrote to memory of 2484	2756	6Dy0Bg4B9kkMsak.exe	37
PID 2756 wrote to memory of 2484	2756	6Dy0Bg4B9kkMsak.exe	37
PID 2756 wrote to memory of 2484	2756	6Dy0Bg4B9kkMsak.exe	37
PID 2756 wrote to memory of 2484	2756	6Dy0Bg4B9kkMsak.exe	37

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6Dy0Bg4B9kkMsak.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6Dy0Bg4B9kkMsak.exe

C:\Users\Admin\AppData\Local\Temp\captured_malware\6Dy0Bg4B9kkMsak.exe
"C:\Users\Admin\AppData\Local\Temp\captured_malware\6Dy0Bg4B9kkMsak.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\captured_malware\6Dy0Bg4B9kkMsak.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1548
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zkkmkfwDvebOW.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2232
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zkkmkfwDvebOW" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE762.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2872
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zkkmkfwDvebOW.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2916
- C:\Users\Admin\AppData\Local\Temp\captured_malware\6Dy0Bg4B9kkMsak.exe
  "C:\Users\Admin\AppData\Local\Temp\captured_malware\6Dy0Bg4B9kkMsak.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:2484

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpE762.tmp

Filesize
1KB

MD5
fc74309bff82affb171aff0acfe9023e

SHA1
ea2f01f7defb83f2fd74b67a089aa976d36da7ce

SHA256
bd07a7de47eb6c22af1afe38e0a760f36668a3021589f0e876010b9e5f40cd6a

SHA512
6fb0ecafe35d595f8371fe582c5df07eeb65d45f35369256af83d0eb10b4eb4f8c00f30a6a705fa2a001794262a8c0cfc18e2d94f8a28fe3866682d531dd8fb0

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\Q3BPXM7AH9I5J0NLIYWS.temp

Filesize
7KB

MD5
5e4af48dd86dcce20f2f84ea0f08b39f

SHA1
8437855795b120134fdaae3a921c5e02fccde3a1

SHA256
5bbe4c1c892158368e1c2f2a402649d7afd63dd111365b150ca9cc0c3d7c0884

SHA512
a07a6f4472b12b46ffccdbbedbd317b166a8eb1160f642911529fb0709038beb702ec730e6dc9b6e8b3605bd46794562fe885742615c6fcc2f6a89f02c172f16

Download Submit
memory/2484-30-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2484-22-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2484-26-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2484-20-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2484-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2484-29-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2484-32-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2484-24-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2756-1-0x0000000000830000-0x0000000000988000-memory.dmp

Filesize
1.3MB

Download
memory/2756-2-0x00000000745C0000-0x0000000074CAE000-memory.dmp

Filesize
6.9MB

Download
memory/2756-0-0x00000000745CE000-0x00000000745CF000-memory.dmp

Filesize
4KB

Download
memory/2756-7-0x0000000000530000-0x000000000056C000-memory.dmp

Filesize
240KB

Download
memory/2756-6-0x0000000005A90000-0x0000000005B30000-memory.dmp

Filesize
640KB

Download
memory/2756-3-0x0000000000380000-0x0000000000392000-memory.dmp

Filesize
72KB

Download
memory/2756-5-0x00000000745C0000-0x0000000074CAE000-memory.dmp

Filesize
6.9MB

Download
memory/2756-4-0x00000000745CE000-0x00000000745CF000-memory.dmp

Filesize
4KB

Download
memory/2756-33-0x00000000745C0000-0x0000000074CAE000-memory.dmp

Filesize
6.9MB

Download