agenttesla | 358c99f5f11faa788a617eae44e7d676dfbf51ba3f1cc0348f03676f7ceea8ee

Analysis

max time kernel
134s
max time network
166s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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 1 IoCs

resource	yara_rule
behavioral12/memory/5080-33-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

resource	yara_rule
behavioral12/memory/2692-8-0x0000000005AB0000-0x0000000005AC2000-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
3400	powershell.exe
1684	powershell.exe
2844	powershell.exe

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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	6Dy0Bg4B9kkMsak.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-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6Dy0Bg4B9kkMsak.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6Dy0Bg4B9kkMsak.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6Dy0Bg4B9kkMsak.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2692 set thread context of 5080	2692	6Dy0Bg4B9kkMsak.exe	99

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
2076	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3400	powershell.exe
2844	powershell.exe
2692	6Dy0Bg4B9kkMsak.exe
2692	6Dy0Bg4B9kkMsak.exe
2692	6Dy0Bg4B9kkMsak.exe
5080	6Dy0Bg4B9kkMsak.exe
5080	6Dy0Bg4B9kkMsak.exe
2844	powershell.exe
1684	powershell.exe
3400	powershell.exe
1684	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2844	powershell.exe
Token: SeDebugPrivilege	3400	powershell.exe
Token: SeDebugPrivilege	2692	6Dy0Bg4B9kkMsak.exe
Token: SeDebugPrivilege	5080	6Dy0Bg4B9kkMsak.exe
Token: SeDebugPrivilege	1684	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5080	6Dy0Bg4B9kkMsak.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2844	2692	6Dy0Bg4B9kkMsak.exe	90
PID 2692 wrote to memory of 2844	2692	6Dy0Bg4B9kkMsak.exe	90
PID 2692 wrote to memory of 2844	2692	6Dy0Bg4B9kkMsak.exe	90
PID 2692 wrote to memory of 3400	2692	6Dy0Bg4B9kkMsak.exe	92
PID 2692 wrote to memory of 3400	2692	6Dy0Bg4B9kkMsak.exe	92
PID 2692 wrote to memory of 3400	2692	6Dy0Bg4B9kkMsak.exe	92
PID 2692 wrote to memory of 2076	2692	6Dy0Bg4B9kkMsak.exe	94
PID 2692 wrote to memory of 2076	2692	6Dy0Bg4B9kkMsak.exe	94
PID 2692 wrote to memory of 2076	2692	6Dy0Bg4B9kkMsak.exe	94
PID 2692 wrote to memory of 1684	2692	6Dy0Bg4B9kkMsak.exe	96
PID 2692 wrote to memory of 1684	2692	6Dy0Bg4B9kkMsak.exe	96
PID 2692 wrote to memory of 1684	2692	6Dy0Bg4B9kkMsak.exe	96
PID 2692 wrote to memory of 2700	2692	6Dy0Bg4B9kkMsak.exe	97
PID 2692 wrote to memory of 2700	2692	6Dy0Bg4B9kkMsak.exe	97
PID 2692 wrote to memory of 2700	2692	6Dy0Bg4B9kkMsak.exe	97
PID 2692 wrote to memory of 5080	2692	6Dy0Bg4B9kkMsak.exe	99
PID 2692 wrote to memory of 5080	2692	6Dy0Bg4B9kkMsak.exe	99
PID 2692 wrote to memory of 5080	2692	6Dy0Bg4B9kkMsak.exe	99
PID 2692 wrote to memory of 5080	2692	6Dy0Bg4B9kkMsak.exe	99
PID 2692 wrote to memory of 5080	2692	6Dy0Bg4B9kkMsak.exe	99
PID 2692 wrote to memory of 5080	2692	6Dy0Bg4B9kkMsak.exe	99
PID 2692 wrote to memory of 5080	2692	6Dy0Bg4B9kkMsak.exe	99
PID 2692 wrote to memory of 5080	2692	6Dy0Bg4B9kkMsak.exe	99

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6Dy0Bg4B9kkMsak.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\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⤵
- 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:2692
- 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:2844
- 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:3400
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zkkmkfwDvebOW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7673.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2076
- 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:1684
- C:\Users\Admin\AppData\Local\Temp\captured_malware\6Dy0Bg4B9kkMsak.exe
  "C:\Users\Admin\AppData\Local\Temp\captured_malware\6Dy0Bg4B9kkMsak.exe"
  2⤵
  PID:2700
- 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:5080

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

Query Registry

T1012

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
553b9f0a8cdd6e3ff26ccbd5709090db

SHA1
fff5f49b4d49af3cd242fc81f8125335ecb1a3dd

SHA256
ce9acc0af6b3d0e98abc9d926b269b1cfebbbe34279ec868012e50b80f760c38

SHA512
d2833c2f49eea918877058a5a8e5bbb31397f633690db0c2c7d308cfc7285aeee8c2653fe5feb5decd97a3b828794b4e5748d97406fc701b8611211dcd0d550d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
4c00bfce1781841b96774ba8b58c5a98

SHA1
62f035447952bbe63295b7b78b89680077da0e0a

SHA256
820bd441aae9c923b064a4733685511f9340a5bf2b4eb130620367f3909fcf11

SHA512
f2b5b35d0ac4078bbc51e7a2e06015c775902d9bb45b1ac73ed5f7192c9c254ac3d68f3d002300745c396517ac4a720b0e05cef8f077f0ea5d7f960479cd441a

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_njfmnccm.4i5.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp7673.tmp

Filesize
1KB

MD5
db301ffbb2fe7c80efa397e2505153ac

SHA1
e89bf5beaf9c6ae6de210ac74ff56c658b836c46

SHA256
c5b4a5f24ce5e66e84f89d2f203675ce04cf685d45f6a6846073d2147ddab02b

SHA512
0fe5a4c70f3c29368cf8d41c04bde7bb20d3793e97f5a328905c8dd3849065fbef3afeb53c69b729e3656013d22c7c2607aad3a2c8bb77b556018f8b5821dd4d

Download Submit
memory/1684-88-0x00000000754F0000-0x000000007553C000-memory.dmp

Filesize
304KB

Download
memory/2692-5-0x00000000057D0000-0x00000000057DA000-memory.dmp

Filesize
40KB

Download
memory/2692-6-0x0000000005A50000-0x0000000005AA6000-memory.dmp

Filesize
344KB

Download
memory/2692-8-0x0000000005AB0000-0x0000000005AC2000-memory.dmp

Filesize
72KB

Download
memory/2692-9-0x0000000074C4E000-0x0000000074C4F000-memory.dmp

Filesize
4KB

Download
memory/2692-10-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/2692-11-0x0000000007490000-0x0000000007530000-memory.dmp

Filesize
640KB

Download
memory/2692-12-0x00000000099A0000-0x00000000099DC000-memory.dmp

Filesize
240KB

Download
memory/2692-7-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/2692-4-0x0000000005860000-0x00000000058F2000-memory.dmp

Filesize
584KB

Download
memory/2692-3-0x0000000005D70000-0x0000000006314000-memory.dmp

Filesize
5.6MB

Download
memory/2692-2-0x0000000005720000-0x00000000057BC000-memory.dmp

Filesize
624KB

Download
memory/2692-49-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/2692-0-0x0000000074C4E000-0x0000000074C4F000-memory.dmp

Filesize
4KB

Download
memory/2692-1-0x0000000000BE0000-0x0000000000D38000-memory.dmp

Filesize
1.3MB

Download
memory/2844-48-0x00000000061C0000-0x0000000006514000-memory.dmp

Filesize
3.3MB

Download
memory/2844-74-0x00000000754F0000-0x000000007553C000-memory.dmp

Filesize
304KB

Download
memory/2844-17-0x0000000002DA0000-0x0000000002DD6000-memory.dmp

Filesize
216KB

Download
memory/2844-108-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/2844-18-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/2844-19-0x0000000005940000-0x0000000005F68000-memory.dmp

Filesize
6.2MB

Download
memory/2844-102-0x0000000007CF0000-0x0000000007CF8000-memory.dmp

Filesize
32KB

Download
memory/2844-21-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/2844-50-0x00000000066A0000-0x00000000066BE000-memory.dmp

Filesize
120KB

Download
memory/2844-60-0x00000000067E0000-0x000000000682C000-memory.dmp

Filesize
304KB

Download
memory/2844-98-0x0000000007BD0000-0x0000000007BE1000-memory.dmp

Filesize
68KB

Download
memory/2844-20-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/3400-84-0x0000000007DB0000-0x000000000842A000-memory.dmp

Filesize
6.5MB

Download
memory/3400-99-0x00000000079A0000-0x00000000079AE000-memory.dmp

Filesize
56KB

Download
memory/3400-61-0x00000000075C0000-0x00000000075F2000-memory.dmp

Filesize
200KB

Download
memory/3400-27-0x0000000005E30000-0x0000000005E96000-memory.dmp

Filesize
408KB

Download
memory/3400-85-0x0000000007770000-0x000000000778A000-memory.dmp

Filesize
104KB

Download
memory/3400-86-0x00000000077E0000-0x00000000077EA000-memory.dmp

Filesize
40KB

Download
memory/3400-87-0x00000000079F0000-0x0000000007A86000-memory.dmp

Filesize
600KB

Download
memory/3400-62-0x00000000754F0000-0x000000007553C000-memory.dmp

Filesize
304KB

Download
memory/3400-72-0x0000000007600000-0x000000000761E000-memory.dmp

Filesize
120KB

Download
memory/3400-73-0x0000000007630000-0x00000000076D3000-memory.dmp

Filesize
652KB

Download
memory/3400-100-0x00000000079B0000-0x00000000079C4000-memory.dmp

Filesize
80KB

Download
memory/3400-101-0x0000000007AB0000-0x0000000007ACA000-memory.dmp

Filesize
104KB

Download
memory/3400-23-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/3400-26-0x0000000005DC0000-0x0000000005E26000-memory.dmp

Filesize
408KB

Download
memory/3400-24-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/3400-25-0x00000000055A0000-0x00000000055C2000-memory.dmp

Filesize
136KB

Download
memory/3400-109-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/5080-33-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/5080-112-0x0000000005D00000-0x0000000005D18000-memory.dmp

Filesize
96KB

Download
memory/5080-113-0x0000000006C10000-0x0000000006C60000-memory.dmp

Filesize
320KB

Download