agenttesla | 2eb3807956289bb22b4a54c110ccc0587090fb814148048d80aa677c8e5b2eff

Analysis

max time kernel
98s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25-09-2024 22:23

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General

Target

PO pdf.exe
Size

484KB
MD5

b7f4df3e04498c6780f4dbc7966073f2
SHA1

cd4ad36c710df4ffceb7c2b5ebbe51507627a553
SHA256

70060de8a075dcc073a6200ba60fb8be1102112a92c7894dfa0edf6507553e58
SHA512

f45313d600695b4e3d38dbf46bef74953f894255e26a8e341ddf77f2038778aac97d9c566f58a51dd3916e5116d7e34b4da1ff424dc731e7f7f963c52ecf30e8
SSDEEP

12288:dT4mEZOzA3G7lmONQv3QRSkzJ1n5Nl9Tga4rtVX:dTOZOXJNS3pkldTghpZ

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
HEoxefZ9

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
HEoxefZ9

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware 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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	PO pdf.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-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO pdf.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-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\YYtJku = "C:\\Users\\Admin\\AppData\\Roaming\\YYtJku\\YYtJku.exe"	PO pdf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 452 set thread context of 4456	452	PO pdf.exe	95

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 3 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	PO pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO pdf.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
3376	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
452	PO pdf.exe
452	PO pdf.exe
452	PO pdf.exe
452	PO pdf.exe
452	PO pdf.exe
4456	PO pdf.exe
4456	PO pdf.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4456	PO pdf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	452	PO pdf.exe
Token: SeDebugPrivilege	4456	PO pdf.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 452 wrote to memory of 3376	452	PO pdf.exe	91
PID 452 wrote to memory of 3376	452	PO pdf.exe	91
PID 452 wrote to memory of 3376	452	PO pdf.exe	91
PID 452 wrote to memory of 4868	452	PO pdf.exe	93
PID 452 wrote to memory of 4868	452	PO pdf.exe	93
PID 452 wrote to memory of 4868	452	PO pdf.exe	93
PID 452 wrote to memory of 1976	452	PO pdf.exe	94
PID 452 wrote to memory of 1976	452	PO pdf.exe	94
PID 452 wrote to memory of 1976	452	PO pdf.exe	94
PID 452 wrote to memory of 4456	452	PO pdf.exe	95
PID 452 wrote to memory of 4456	452	PO pdf.exe	95
PID 452 wrote to memory of 4456	452	PO pdf.exe	95
PID 452 wrote to memory of 4456	452	PO pdf.exe	95
PID 452 wrote to memory of 4456	452	PO pdf.exe	95
PID 452 wrote to memory of 4456	452	PO pdf.exe	95
PID 452 wrote to memory of 4456	452	PO pdf.exe	95
PID 452 wrote to memory of 4456	452	PO pdf.exe	95

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO pdf.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO pdf.exe

C:\Users\Admin\AppData\Local\Temp\PO pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PO pdf.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:452
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rPdgumxRa" /XML "C:\Users\Admin\AppData\Local\Temp\tmp97B7.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3376
- C:\Users\Admin\AppData\Local\Temp\PO pdf.exe
  "{path}"
  2⤵
  PID:4868
- C:\Users\Admin\AppData\Local\Temp\PO pdf.exe
  "{path}"
  2⤵
  PID:1976
- C:\Users\Admin\AppData\Local\Temp\PO pdf.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4456

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

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\Temp\tmp97B7.tmp

Filesize
1KB

MD5
15b69d3f7faec6833c2f5fea713439b7

SHA1
e2f40191faa3e03210eb3318040cb3d563911995

SHA256
b6257674b15d0e091fc1e62df34cf744b5f376782edfed878932afabd9216809

SHA512
d041c7b658fdc2add469c6e99d79265963a82e30ee2aa599a86da5f8051bfe17d95d20907fe7e4dd4035d42f00125c72997a66b827db96c45559900cbaca98cf

Download Submit
memory/452-13-0x0000000074C80000-0x0000000075231000-memory.dmp

Filesize
5.7MB

Download
memory/452-1-0x0000000074C80000-0x0000000075231000-memory.dmp

Filesize
5.7MB

Download
memory/452-2-0x0000000074C80000-0x0000000075231000-memory.dmp

Filesize
5.7MB

Download
memory/452-3-0x0000000074C82000-0x0000000074C83000-memory.dmp

Filesize
4KB

Download
memory/452-4-0x0000000074C80000-0x0000000075231000-memory.dmp

Filesize
5.7MB

Download
memory/452-0-0x0000000074C82000-0x0000000074C83000-memory.dmp

Filesize
4KB

Download
memory/4456-10-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4456-12-0x0000000074C80000-0x0000000075231000-memory.dmp

Filesize
5.7MB

Download
memory/4456-14-0x0000000074C80000-0x0000000075231000-memory.dmp

Filesize
5.7MB

Download
memory/4456-15-0x0000000074C80000-0x0000000075231000-memory.dmp

Filesize
5.7MB

Download
memory/4456-16-0x0000000074C80000-0x0000000075231000-memory.dmp

Filesize
5.7MB

Download
memory/4456-18-0x0000000074C80000-0x0000000075231000-memory.dmp

Filesize
5.7MB

Download
memory/4456-19-0x0000000074C80000-0x0000000075231000-memory.dmp

Filesize
5.7MB

Download
memory/4456-20-0x0000000074C80000-0x0000000075231000-memory.dmp

Filesize
5.7MB

Download