agenttesla | eb13bbf89dde5a3876a66aac08acf362b86adb97b2c6fd08f394f7088a4c2b11

Analysis

max time kernel
136s
max time network
137s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
25-09-2024 07:09

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Buyurtma.exe
Size

576KB
MD5

95b44c8d8b9fc5aa08c54c7e1839f346
SHA1

ed9e04421ed3d78fceb93d8df0eef08616cb1808
SHA256

f267ae557c75a40bff905fa66b8e7230f3bf58a57645cc945650bd7ecdf71d0a
SHA512

5b5b75554d77b99c372e8f5cfb6b4c576ae59be13d99219cad06515c12dc8d6ab704cdd55dc775218369d6fbaf1cfa00aa600a754d1859aaf7a46eaf9645d4a3
SSDEEP

12288:icajcXH2pvgIEzS6pCnH2MJNOh9ixMt/LIuiFyN:icaIXIvTE+6pCNkh9i6ZI7Fy

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
romeovm2015

Signatures

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

AgentTesla payload 5 IoCs

resource	yara_rule
behavioral1/memory/2648-21-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2648-17-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2648-14-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2648-13-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2648-19-0x0000000000400000-0x000000000043C000-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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Buyurtma.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Buyurtma.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Buyurtma.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\YYtJku = "C:\\Users\\Admin\\AppData\\Roaming\\YYtJku\\YYtJku.exe"	Buyurtma.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
5	api.ipify.org
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1820 set thread context of 2648	1820	Buyurtma.exe	33

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	Buyurtma.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Buyurtma.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
2788	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1820	Buyurtma.exe
1820	Buyurtma.exe
1820	Buyurtma.exe
2648	Buyurtma.exe
2648	Buyurtma.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2648	Buyurtma.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1820	Buyurtma.exe
Token: SeDebugPrivilege	2648	Buyurtma.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1820 wrote to memory of 2788	1820	Buyurtma.exe	31
PID 1820 wrote to memory of 2788	1820	Buyurtma.exe	31
PID 1820 wrote to memory of 2788	1820	Buyurtma.exe	31
PID 1820 wrote to memory of 2788	1820	Buyurtma.exe	31
PID 1820 wrote to memory of 2648	1820	Buyurtma.exe	33
PID 1820 wrote to memory of 2648	1820	Buyurtma.exe	33
PID 1820 wrote to memory of 2648	1820	Buyurtma.exe	33
PID 1820 wrote to memory of 2648	1820	Buyurtma.exe	33
PID 1820 wrote to memory of 2648	1820	Buyurtma.exe	33
PID 1820 wrote to memory of 2648	1820	Buyurtma.exe	33
PID 1820 wrote to memory of 2648	1820	Buyurtma.exe	33
PID 1820 wrote to memory of 2648	1820	Buyurtma.exe	33
PID 1820 wrote to memory of 2648	1820	Buyurtma.exe	33

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Buyurtma.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Buyurtma.exe

C:\Users\Admin\AppData\Local\Temp\Buyurtma.exe
"C:\Users\Admin\AppData\Local\Temp\Buyurtma.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1820
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LkLecA" /XML "C:\Users\Admin\AppData\Local\Temp\tmp65D5.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2788
- C:\Users\Admin\AppData\Local\Temp\Buyurtma.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:2648

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

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp65D5.tmp

Filesize
1KB

MD5
291ac946ad30661766d768dbce20dbb4

SHA1
28d65b970470adfb788c9d06ff9893e32353e61e

SHA256
ab4408eb04cfb0c7a85a7f2383ceedb958df2727bf2b3f36b0610779bd658f77

SHA512
ca9fa4b25d6d4aa73b2baf6e4f9a84f13e8fe14da86747a1319ab38439cf668814c3c581bf5177aea8fdd4ee2e5a7a8c412169ae03595cfd4ff2921413da7497

Download Submit
memory/1820-0-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

Filesize
4KB

Download
memory/1820-1-0x0000000000090000-0x0000000000126000-memory.dmp

Filesize
600KB

Download
memory/1820-2-0x0000000000570000-0x0000000000582000-memory.dmp

Filesize
72KB

Download
memory/1820-3-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/1820-4-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

Filesize
4KB

Download
memory/1820-5-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/1820-6-0x00000000052E0000-0x0000000005356000-memory.dmp

Filesize
472KB

Download
memory/1820-7-0x00000000053F0000-0x000000000545C000-memory.dmp

Filesize
432KB

Download
memory/1820-23-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2648-12-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2648-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2648-22-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2648-21-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2648-17-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2648-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2648-14-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2648-13-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2648-19-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2648-24-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2648-25-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2648-26-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download