agenttesla | 358c99f5f11faa788a617eae44e7d676dfbf51ba3f1cc0348f03676f7ceea8ee

Analysis

max time kernel
149s
max time network
35s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 13:44

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General

Target

captured_malware/YCUMy7OsLy2HRs6.exe
Size

1.4MB
MD5

ed6c05676795aec8b92b73201c000b3b
SHA1

04b28d1f45f0383780b2f80edfb8678d013b1f95
SHA256

88adfc181742099b77f42fbe0de808397332c397edbe9174f3710d1899789b13
SHA512

bf57069344790bf2ab91da81a94c85b2081595b6739451c01857bc01788d4c3ea9795b20d1f4019fa5c66d15f72ede9261db1150adda62d825a3bbb330516112
SSDEEP

24576:7oREAJra/fx8DgMfx8DgksWWkoWIyC1H2KsEK+g9ZCvLL:m3JrW58DgM58DgKotyCxdsEuZCT

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.alexfoxfreight.com
Port:
587
Username:
[email protected]
Password:
Ueos*93sj!#!12

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
behavioral31/memory/3028-18-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral31/memory/3028-16-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral31/memory/3028-14-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral31/memory/3028-11-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral31/memory/3028-10-0x0000000000400000-0x000000000043C000-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	YCUMy7OsLy2HRs6.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	YCUMy7OsLy2HRs6.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	YCUMy7OsLy2HRs6.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2444 set thread context of 3028	2444	YCUMy7OsLy2HRs6.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 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	YCUMy7OsLy2HRs6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	YCUMy7OsLy2HRs6.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3028	YCUMy7OsLy2HRs6.exe
3028	YCUMy7OsLy2HRs6.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3028	YCUMy7OsLy2HRs6.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3028	YCUMy7OsLy2HRs6.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2444 wrote to memory of 3028	2444	YCUMy7OsLy2HRs6.exe	31
PID 2444 wrote to memory of 3028	2444	YCUMy7OsLy2HRs6.exe	31
PID 2444 wrote to memory of 3028	2444	YCUMy7OsLy2HRs6.exe	31
PID 2444 wrote to memory of 3028	2444	YCUMy7OsLy2HRs6.exe	31
PID 2444 wrote to memory of 3028	2444	YCUMy7OsLy2HRs6.exe	31
PID 2444 wrote to memory of 3028	2444	YCUMy7OsLy2HRs6.exe	31
PID 2444 wrote to memory of 3028	2444	YCUMy7OsLy2HRs6.exe	31
PID 2444 wrote to memory of 3028	2444	YCUMy7OsLy2HRs6.exe	31
PID 2444 wrote to memory of 3028	2444	YCUMy7OsLy2HRs6.exe	31

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	YCUMy7OsLy2HRs6.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	YCUMy7OsLy2HRs6.exe

C:\Users\Admin\AppData\Local\Temp\captured_malware\YCUMy7OsLy2HRs6.exe
"C:\Users\Admin\AppData\Local\Temp\captured_malware\YCUMy7OsLy2HRs6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Users\Admin\AppData\Local\Temp\captured_malware\YCUMy7OsLy2HRs6.exe
  "C:\Users\Admin\AppData\Local\Temp\captured_malware\YCUMy7OsLy2HRs6.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:3028

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

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 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

memory/2444-0-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

Filesize
4KB

Download
memory/2444-1-0x00000000010E0000-0x000000000124C000-memory.dmp

Filesize
1.4MB

Download
memory/2444-2-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2444-3-0x00000000002E0000-0x00000000002F2000-memory.dmp

Filesize
72KB

Download
memory/2444-4-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

Filesize
4KB

Download
memory/2444-5-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2444-6-0x0000000009690000-0x000000000972E000-memory.dmp

Filesize
632KB

Download
memory/2444-7-0x0000000000670000-0x00000000006AC000-memory.dmp

Filesize
240KB

Download
memory/2444-21-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/3028-16-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3028-19-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/3028-14-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3028-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3028-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3028-8-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3028-10-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3028-18-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3028-20-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/3028-9-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3028-22-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/3028-23-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/3028-24-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/3028-25-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download