agenttesla | 358c99f5f11faa788a617eae44e7d676dfbf51ba3f1cc0348f03676f7ceea8ee

Analysis

max time kernel
133s
max time network
168s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-11-2024 20:41

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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

Processes:

resource	yara_rule
behavioral12/memory/5116-48-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

Processes:

resource	yara_rule
behavioral12/memory/4424-8-0x0000000005A30000-0x0000000005A42000-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

Processes:

powershell.exepowershell.exepowershell.exe

pid process

4220 powershell.exe
2252 powershell.exe
3524 powershell.exe

pid	process
4220	powershell.exe
2252	powershell.exe
3524	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

Processes:

6Dy0Bg4B9kkMsak.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\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

Processes:

6Dy0Bg4B9kkMsak.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6Dy0Bg4B9kkMsak.exe
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6Dy0Bg4B9kkMsak.exe
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6Dy0Bg4B9kkMsak.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

6Dy0Bg4B9kkMsak.exe

description pid process target process

PID 4424 set thread context of 5116 4424 6Dy0Bg4B9kkMsak.exe 6Dy0Bg4B9kkMsak.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 4424 set thread context of 5116	4424	6Dy0Bg4B9kkMsak.exe	6Dy0Bg4B9kkMsak.exe

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

Processes:

powershell.exe6Dy0Bg4B9kkMsak.exepowershell.exepowershell.exeschtasks.exe6Dy0Bg4B9kkMsak.exe

description	ioc	process
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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6Dy0Bg4B9kkMsak.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

Processes:

schtasks.exe

pid process

912 schtasks.exe

pid	process
912	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

powershell.exepowershell.exe6Dy0Bg4B9kkMsak.exe6Dy0Bg4B9kkMsak.exepowershell.exe

pid	process
3524	powershell.exe
4220	powershell.exe
3524	powershell.exe
4424	6Dy0Bg4B9kkMsak.exe
5116	6Dy0Bg4B9kkMsak.exe
5116	6Dy0Bg4B9kkMsak.exe
4220	powershell.exe
2252	powershell.exe
2252	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

powershell.exepowershell.exe6Dy0Bg4B9kkMsak.exe6Dy0Bg4B9kkMsak.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	3524	powershell.exe
Token: SeDebugPrivilege	4220	powershell.exe
Token: SeDebugPrivilege	4424	6Dy0Bg4B9kkMsak.exe
Token: SeDebugPrivilege	5116	6Dy0Bg4B9kkMsak.exe
Token: SeDebugPrivilege	2252	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

6Dy0Bg4B9kkMsak.exe

pid process

5116 6Dy0Bg4B9kkMsak.exe

pid	process
5116	6Dy0Bg4B9kkMsak.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

6Dy0Bg4B9kkMsak.exe

description	pid	process	target process
PID 4424 wrote to memory of 3524	4424	6Dy0Bg4B9kkMsak.exe	powershell.exe
PID 4424 wrote to memory of 3524	4424	6Dy0Bg4B9kkMsak.exe	powershell.exe
PID 4424 wrote to memory of 3524	4424	6Dy0Bg4B9kkMsak.exe	powershell.exe
PID 4424 wrote to memory of 4220	4424	6Dy0Bg4B9kkMsak.exe	powershell.exe
PID 4424 wrote to memory of 4220	4424	6Dy0Bg4B9kkMsak.exe	powershell.exe
PID 4424 wrote to memory of 4220	4424	6Dy0Bg4B9kkMsak.exe	powershell.exe
PID 4424 wrote to memory of 912	4424	6Dy0Bg4B9kkMsak.exe	schtasks.exe
PID 4424 wrote to memory of 912	4424	6Dy0Bg4B9kkMsak.exe	schtasks.exe
PID 4424 wrote to memory of 912	4424	6Dy0Bg4B9kkMsak.exe	schtasks.exe
PID 4424 wrote to memory of 2252	4424	6Dy0Bg4B9kkMsak.exe	powershell.exe
PID 4424 wrote to memory of 2252	4424	6Dy0Bg4B9kkMsak.exe	powershell.exe
PID 4424 wrote to memory of 2252	4424	6Dy0Bg4B9kkMsak.exe	powershell.exe
PID 4424 wrote to memory of 5116	4424	6Dy0Bg4B9kkMsak.exe	6Dy0Bg4B9kkMsak.exe
PID 4424 wrote to memory of 5116	4424	6Dy0Bg4B9kkMsak.exe	6Dy0Bg4B9kkMsak.exe
PID 4424 wrote to memory of 5116	4424	6Dy0Bg4B9kkMsak.exe	6Dy0Bg4B9kkMsak.exe
PID 4424 wrote to memory of 5116	4424	6Dy0Bg4B9kkMsak.exe	6Dy0Bg4B9kkMsak.exe
PID 4424 wrote to memory of 5116	4424	6Dy0Bg4B9kkMsak.exe	6Dy0Bg4B9kkMsak.exe
PID 4424 wrote to memory of 5116	4424	6Dy0Bg4B9kkMsak.exe	6Dy0Bg4B9kkMsak.exe
PID 4424 wrote to memory of 5116	4424	6Dy0Bg4B9kkMsak.exe	6Dy0Bg4B9kkMsak.exe
PID 4424 wrote to memory of 5116	4424	6Dy0Bg4B9kkMsak.exe	6Dy0Bg4B9kkMsak.exe

outlook_office_path 1 IoCs

Processes:

6Dy0Bg4B9kkMsak.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6Dy0Bg4B9kkMsak.exe

outlook_win_path 1 IoCs

Processes:

6Dy0Bg4B9kkMsak.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\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:4424
- 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:3524
- 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:4220
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zkkmkfwDvebOW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp75B8.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:912
- 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:2252
- 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:5116

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

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Downloads

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

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

Filesize
18KB

MD5
0df005b08c7ba817ee9edc03936c870b

SHA1
0816ed90ed55b06e90c3cb7bfa80431363994959

SHA256
24d1b6ec3391295c221b28ede6dce4701c687238819f8199b60009e7dc438969

SHA512
8008fe8e17c5dcb0d3f53420c88c085e0cbee80db0e13d8cf9b8d31aed8930f829e1251c854488accc27975b2def955f051b1a2f7e50264232a9304ac7cb37af

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

Filesize
18KB

MD5
4f44ba5768da387af3dcea96a8e70add

SHA1
d3ee35a461b98bff2d61af82f0c4c821d3b96f03

SHA256
1a5cbb387adaeede6bee2dcc454ccccd59b93717c4f525b30a013fa2bbcb29a8

SHA512
5924a4d9d22acaf9a465408d0643392010bb96babc8c6aaa58c07cdc0ca5e7843b3045c61b68bac4ccf8ba36121be5a2a966b2bbf7c41d058e4700f0f0ecdf8b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_050vhl2h.xj1.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp75B8.tmp

Filesize
1KB

MD5
cdf3706018ed554e104dc0a381f2d935

SHA1
87b56ca058771495001bea281db1bda2dc1c4e94

SHA256
996e2ee14e9a026a3359b4694c0cb330d92beddc0d031f763c4b22df3394ee17

SHA512
994fd831589c348d132aa51073de48ff73570ac11d4b04022337e2f81f0bf7efcf6ae2301ac756787502270b3955c64c60b5feab15de576ad4c006e414663c40

Download Submit
memory/2252-88-0x0000000075900000-0x000000007594C000-memory.dmp

Filesize
304KB

Download
memory/3524-87-0x0000000007690000-0x000000000769A000-memory.dmp

Filesize
40KB

Download
memory/3524-52-0x00000000068E0000-0x000000000692C000-memory.dmp

Filesize
304KB

Download
memory/3524-106-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/3524-103-0x0000000007940000-0x0000000007948000-memory.dmp

Filesize
32KB

Download
memory/3524-98-0x00000000078A0000-0x0000000007936000-memory.dmp

Filesize
600KB

Download
memory/3524-85-0x0000000007C60000-0x00000000082DA000-memory.dmp

Filesize
6.5MB

Download
memory/3524-86-0x0000000007620000-0x000000000763A000-memory.dmp

Filesize
104KB

Download
memory/3524-17-0x0000000004D30000-0x0000000004D66000-memory.dmp

Filesize
216KB

Download
memory/3524-18-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/3524-19-0x0000000005440000-0x0000000005A68000-memory.dmp

Filesize
6.2MB

Download
memory/3524-20-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/3524-62-0x0000000007470000-0x00000000074A2000-memory.dmp

Filesize
200KB

Download
memory/3524-22-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/3524-23-0x0000000005A70000-0x0000000005A92000-memory.dmp

Filesize
136KB

Download
memory/3524-25-0x0000000005CC0000-0x0000000005D26000-memory.dmp

Filesize
408KB

Download
memory/3524-73-0x00000000074B0000-0x00000000074CE000-memory.dmp

Filesize
120KB

Download
memory/3524-74-0x00000000074E0000-0x0000000007583000-memory.dmp

Filesize
652KB

Download
memory/3524-24-0x0000000005BE0000-0x0000000005C46000-memory.dmp

Filesize
408KB

Download
memory/3524-63-0x0000000075900000-0x000000007594C000-memory.dmp

Filesize
304KB

Download
memory/3524-37-0x0000000005E30000-0x0000000006184000-memory.dmp

Filesize
3.3MB

Download
memory/3524-51-0x00000000062E0000-0x00000000062FE000-memory.dmp

Filesize
120KB

Download
memory/4220-99-0x0000000006FF0000-0x0000000007001000-memory.dmp

Filesize
68KB

Download
memory/4220-110-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/4220-102-0x0000000007130000-0x000000000714A000-memory.dmp

Filesize
104KB

Download
memory/4220-47-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/4220-36-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/4220-75-0x0000000075900000-0x000000007594C000-memory.dmp

Filesize
304KB

Download
memory/4220-101-0x0000000007030000-0x0000000007044000-memory.dmp

Filesize
80KB

Download
memory/4220-100-0x0000000007020000-0x000000000702E000-memory.dmp

Filesize
56KB

Download
memory/4220-21-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/4424-10-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/4424-9-0x000000007505E000-0x000000007505F000-memory.dmp

Filesize
4KB

Download
memory/4424-0-0x000000007505E000-0x000000007505F000-memory.dmp

Filesize
4KB

Download
memory/4424-1-0x0000000000A50000-0x0000000000BA8000-memory.dmp

Filesize
1.3MB

Download
memory/4424-4-0x0000000005550000-0x00000000055E2000-memory.dmp

Filesize
584KB

Download
memory/4424-12-0x00000000097F0000-0x000000000982C000-memory.dmp

Filesize
240KB

Download
memory/4424-6-0x0000000005880000-0x00000000058D6000-memory.dmp

Filesize
344KB

Download
memory/4424-5-0x00000000057E0000-0x00000000057EA000-memory.dmp

Filesize
40KB

Download
memory/4424-7-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/4424-11-0x00000000072C0000-0x0000000007360000-memory.dmp

Filesize
640KB

Download
memory/4424-8-0x0000000005A30000-0x0000000005A42000-memory.dmp

Filesize
72KB

Download
memory/4424-3-0x0000000005B00000-0x00000000060A4000-memory.dmp

Filesize
5.6MB

Download
memory/4424-2-0x00000000054B0000-0x000000000554C000-memory.dmp

Filesize
624KB

Download
memory/4424-50-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/5116-48-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/5116-113-0x0000000005980000-0x0000000005998000-memory.dmp

Filesize
96KB

Download
memory/5116-114-0x0000000006860000-0x00000000068B0000-memory.dmp

Filesize
320KB

Download