agenttesla | 2eb3807956289bb22b4a54c110ccc0587090fb814148048d80aa677c8e5b2eff

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

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
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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\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-1-5-21-2872745919-2748461613-2989606286-1000\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 2364 set thread context of 2740	2364	PO pdf.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	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
2852	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2364	PO pdf.exe
2740	PO pdf.exe
2740	PO pdf.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2740	PO pdf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2364	PO pdf.exe
Token: SeDebugPrivilege	2740	PO pdf.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 2852	2364	PO pdf.exe	31
PID 2364 wrote to memory of 2852	2364	PO pdf.exe	31
PID 2364 wrote to memory of 2852	2364	PO pdf.exe	31
PID 2364 wrote to memory of 2852	2364	PO pdf.exe	31
PID 2364 wrote to memory of 2740	2364	PO pdf.exe	33
PID 2364 wrote to memory of 2740	2364	PO pdf.exe	33
PID 2364 wrote to memory of 2740	2364	PO pdf.exe	33
PID 2364 wrote to memory of 2740	2364	PO pdf.exe	33
PID 2364 wrote to memory of 2740	2364	PO pdf.exe	33
PID 2364 wrote to memory of 2740	2364	PO pdf.exe	33
PID 2364 wrote to memory of 2740	2364	PO pdf.exe	33
PID 2364 wrote to memory of 2740	2364	PO pdf.exe	33
PID 2364 wrote to memory of 2740	2364	PO pdf.exe	33

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\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-1-5-21-2872745919-2748461613-2989606286-1000\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⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2364
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rPdgumxRa" /XML "C:\Users\Admin\AppData\Local\Temp\tmp20CA.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2852
- 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:2740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

5

T1552

Credentials In Files

4

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp20CA.tmp

Filesize
1KB

MD5
4fcb1ca08bc7e0308277f98c0a7c5aa5

SHA1
208f345db882d56d722347bf2496e2eee75ca5dc

SHA256
e6fc6993ca7590b3527b23302f9fb699407511dec42aeb87cbb63a2c5fc01f28

SHA512
64666e1a47fd4c4b1541f71fea96f03e5a20d4939f3b77f60834f27d95c423dbe935d1a44cbf165bfc7260a8d0b12abac74f1971fe4b622a50bfb2d6f0d0223a

Download Submit
memory/2364-0-0x00000000748B1000-0x00000000748B2000-memory.dmp

Filesize
4KB

Download
memory/2364-1-0x00000000748B0000-0x0000000074E5B000-memory.dmp

Filesize
5.7MB

Download
memory/2364-2-0x00000000748B0000-0x0000000074E5B000-memory.dmp

Filesize
5.7MB

Download
memory/2364-3-0x00000000748B0000-0x0000000074E5B000-memory.dmp

Filesize
5.7MB

Download
memory/2364-4-0x00000000748B0000-0x0000000074E5B000-memory.dmp

Filesize
5.7MB

Download
memory/2364-23-0x00000000748B0000-0x0000000074E5B000-memory.dmp

Filesize
5.7MB

Download
memory/2740-18-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2740-20-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2740-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2740-15-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2740-14-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2740-12-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2740-10-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2740-22-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2740-25-0x00000000748B0000-0x0000000074E5B000-memory.dmp

Filesize
5.7MB

Download
memory/2740-24-0x00000000748B0000-0x0000000074E5B000-memory.dmp

Filesize
5.7MB

Download
memory/2740-26-0x00000000748B0000-0x0000000074E5B000-memory.dmp

Filesize
5.7MB

Download
memory/2740-28-0x00000000748B0000-0x0000000074E5B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads