agenttesla | 078af4066128653bbfceb25b010713cfbdec2582533040e62c03a4638ca4ca9d

General

Target

COTIZACIN08673.exe
Size

1.3MB
MD5

b6b094b48e6bb079ca0e1f42d145baff
SHA1

f565ba1bf316db46ce939176ae13d94bcd2c2999
SHA256

078af4066128653bbfceb25b010713cfbdec2582533040e62c03a4638ca4ca9d
SHA512

64f187fe0fb71e4b7e239ff2c6fb96d11d8b52c8f85bdbc951fefb7ce064ff4bf7c0492476be6f13f83011496844b7cac1924b4796f9f1310443b3266366122f
SSDEEP

24576:/8V74TIvF31QRutLW/Nye+NuiiySewAIynNyFZQvww:kZ46FoPMNTtzTnNyv

Score

10^/10

agenttesla discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: ftp
Host:
ftp.ercolina-usa.com
Port:
21
Username:
[email protected]
Password:
uy,o#mZj8$lY

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.ercolina-usa.com
Port:
21
Username:
[email protected]
Password:
uy,o#mZj8$lY

Signatures

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

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-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\newapp = "C:\\Users\\Admin\\AppData\\Roaming\\newapp\\newapp.exe"	COTIZACIN08673.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
4	api.ipify.org
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3060 set thread context of 2816	3060	COTIZACIN08673.exe	30

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	COTIZACIN08673.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	COTIZACIN08673.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
3060	COTIZACIN08673.exe
3060	COTIZACIN08673.exe
3060	COTIZACIN08673.exe
3060	COTIZACIN08673.exe
3060	COTIZACIN08673.exe
2816	COTIZACIN08673.exe
2816	COTIZACIN08673.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3060	COTIZACIN08673.exe
Token: SeDebugPrivilege	2816	COTIZACIN08673.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2816	COTIZACIN08673.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 2812	3060	COTIZACIN08673.exe	29
PID 3060 wrote to memory of 2812	3060	COTIZACIN08673.exe	29
PID 3060 wrote to memory of 2812	3060	COTIZACIN08673.exe	29
PID 3060 wrote to memory of 2812	3060	COTIZACIN08673.exe	29
PID 3060 wrote to memory of 2812	3060	COTIZACIN08673.exe	29
PID 3060 wrote to memory of 2812	3060	COTIZACIN08673.exe	29
PID 3060 wrote to memory of 2812	3060	COTIZACIN08673.exe	29
PID 3060 wrote to memory of 2812	3060	COTIZACIN08673.exe	29
PID 3060 wrote to memory of 2812	3060	COTIZACIN08673.exe	29
PID 3060 wrote to memory of 2816	3060	COTIZACIN08673.exe	30
PID 3060 wrote to memory of 2816	3060	COTIZACIN08673.exe	30
PID 3060 wrote to memory of 2816	3060	COTIZACIN08673.exe	30
PID 3060 wrote to memory of 2816	3060	COTIZACIN08673.exe	30
PID 3060 wrote to memory of 2816	3060	COTIZACIN08673.exe	30
PID 3060 wrote to memory of 2816	3060	COTIZACIN08673.exe	30
PID 3060 wrote to memory of 2816	3060	COTIZACIN08673.exe	30
PID 3060 wrote to memory of 2816	3060	COTIZACIN08673.exe	30
PID 3060 wrote to memory of 2816	3060	COTIZACIN08673.exe	30

C:\Users\Admin\AppData\Local\Temp\COTIZACIN08673.exe
"C:\Users\Admin\AppData\Local\Temp\COTIZACIN08673.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Users\Admin\AppData\Local\Temp\COTIZACIN08673.exe
  "C:\Users\Admin\AppData\Local\Temp\COTIZACIN08673.exe"
  2⤵
  PID:2812
- C:\Users\Admin\AppData\Local\Temp\COTIZACIN08673.exe
  "C:\Users\Admin\AppData\Local\Temp\COTIZACIN08673.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2816

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/2812-8-0x00000000001D0000-0x0000000000214000-memory.dmp

Filesize
272KB

Download
memory/2812-10-0x00000000001D0000-0x0000000000214000-memory.dmp

Filesize
272KB

Download
memory/2812-11-0x00000000001D0000-0x0000000000214000-memory.dmp

Filesize
272KB

Download
memory/2812-13-0x00000000001D0000-0x0000000000214000-memory.dmp

Filesize
272KB

Download
memory/2812-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2816-24-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2816-23-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2816-32-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2816-31-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2816-28-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2816-26-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2816-25-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3060-1-0x0000000000020000-0x0000000000174000-memory.dmp

Filesize
1.3MB

Download
memory/3060-6-0x0000000000660000-0x000000000067A000-memory.dmp

Filesize
104KB

Download
memory/3060-2-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/3060-0-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/3060-3-0x0000000002030000-0x00000000020CE000-memory.dmp

Filesize
632KB

Download
memory/3060-4-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/3060-27-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/3060-5-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/3060-7-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads