agenttesla | 74e4fd16559937ee0b609eb858531a442c7fac27651c6d9b5ffc262b7fe3dcd4

General

Target

98ec10aa5e7cc5e58ce7bc6c908dcb84.exe
Size

567KB
MD5

98ec10aa5e7cc5e58ce7bc6c908dcb84
SHA1

4caa7291c2d8331093d174e5003e88a6b60766d1
SHA256

74e4fd16559937ee0b609eb858531a442c7fac27651c6d9b5ffc262b7fe3dcd4
SHA512

69039328090d9dc0140f7465b475ce6a38179564430dfd0eb78dbbe0c12d1fb110fcf2595dd08559d1a468e44ae6942a5fe678d101dc6c9ea467401c5fb60271
SSDEEP

12288:Ejp+gczyhNSvRbBQHR4qz91hI0zSaNsvz+yuWDVId21NaI+E8tyvX4xGV5H2uCRc:uxKWuCRcDhLkUmfZ7

Score

10^/10

agenttesla collection evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://srbizasrbe.org/
Port:
21
Username:
[email protected]
Password:
sync@#1235

Signatures

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

AgentTesla payload 6 IoCs

resource	yara_rule
behavioral1/memory/2080-12-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2080-13-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2080-16-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2080-20-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2080-18-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2080-23-0x0000000004AE0000-0x0000000004B20000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe

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 2 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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe
Key opened	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe
Key opened	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2900 set thread context of 2080	2900	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe	29

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2080	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe
2080	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2080	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2900 wrote to memory of 2080	2900	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe	29
PID 2900 wrote to memory of 2080	2900	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe	29
PID 2900 wrote to memory of 2080	2900	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe	29
PID 2900 wrote to memory of 2080	2900	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe	29
PID 2900 wrote to memory of 2080	2900	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe	29
PID 2900 wrote to memory of 2080	2900	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe	29
PID 2900 wrote to memory of 2080	2900	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe	29
PID 2900 wrote to memory of 2080	2900	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe	29
PID 2900 wrote to memory of 2080	2900	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	98ec10aa5e7cc5e58ce7bc6c908dcb84.exe

C:\Users\Admin\AppData\Local\Temp\98ec10aa5e7cc5e58ce7bc6c908dcb84.exe
"C:\Users\Admin\AppData\Local\Temp\98ec10aa5e7cc5e58ce7bc6c908dcb84.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2900
- C:\Users\Admin\AppData\Local\Temp\98ec10aa5e7cc5e58ce7bc6c908dcb84.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2080

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2080-18-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2080-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2080-28-0x0000000004AE0000-0x0000000004B20000-memory.dmp

Filesize
256KB

Download
memory/2080-27-0x0000000004AE0000-0x0000000004B20000-memory.dmp

Filesize
256KB

Download
memory/2080-25-0x0000000004AE0000-0x0000000004B20000-memory.dmp

Filesize
256KB

Download
memory/2080-24-0x00000000746D0000-0x0000000074DBE000-memory.dmp

Filesize
6.9MB

Download
memory/2080-13-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2080-20-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2080-10-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2080-12-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2080-23-0x0000000004AE0000-0x0000000004B20000-memory.dmp

Filesize
256KB

Download
memory/2080-8-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2080-22-0x00000000746D0000-0x0000000074DBE000-memory.dmp

Filesize
6.9MB

Download
memory/2080-16-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2900-6-0x0000000005000000-0x0000000005098000-memory.dmp

Filesize
608KB

Download
memory/2900-0-0x0000000000B00000-0x0000000000B94000-memory.dmp

Filesize
592KB

Download
memory/2900-21-0x00000000746D0000-0x0000000074DBE000-memory.dmp

Filesize
6.9MB

Download
memory/2900-7-0x0000000004D90000-0x0000000004DE4000-memory.dmp

Filesize
336KB

Download
memory/2900-1-0x00000000746D0000-0x0000000074DBE000-memory.dmp

Filesize
6.9MB

Download
memory/2900-5-0x0000000004D50000-0x0000000004D90000-memory.dmp

Filesize
256KB

Download
memory/2900-4-0x00000000746D0000-0x0000000074DBE000-memory.dmp

Filesize
6.9MB

Download
memory/2900-3-0x00000000003B0000-0x00000000003B8000-memory.dmp

Filesize
32KB

Download
memory/2900-2-0x0000000004D50000-0x0000000004D90000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads