agenttesla | dfcb72a291ce5f265c39116b1cb7d7555161221bcfb6a6b3ff93c164bffd9328

General

Target

P I.exe
Size

475KB
MD5

0b2a4749b78b77dd87d0ade738a3d810
SHA1

24242da77a09130fa9fe855193c8633a533ee0c2
SHA256

27a17a1a1ea5a6fe28d30022d246f75e80942a6a9cbe483f87f8b6c103d39a8f
SHA512

3522f35c3aa16530b7bf4d7df41746eb07efbe78884d158b10fdd30da8fb39a1c3383707736ea4c3b3728c681ea5889261b38396609c9c215e591e23ed249d17
SSDEEP

12288:fBvSZEgn05KW+z6p0IR4BOF2ZmFVdLdgBIwsB5cNuu2iN:fBvPc9WIGFcOQAdJhZ5cNl1

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.flsrnidth.com
Port:
587
Username:
[email protected]
Password:
x{Op,7(4O+yl

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
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 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
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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	P I.exe
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	P I.exe
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	P I.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\YYtJku = "C:\\Users\\Admin\\AppData\\Roaming\\YYtJku\\YYtJku.exe"	P I.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2096 set thread context of 2908	2096	P I.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	P I.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	P I.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
2256	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2908	P I.exe
2908	P I.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2908	P I.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2908	P I.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2096 wrote to memory of 2256	2096	P I.exe	31
PID 2096 wrote to memory of 2256	2096	P I.exe	31
PID 2096 wrote to memory of 2256	2096	P I.exe	31
PID 2096 wrote to memory of 2256	2096	P I.exe	31
PID 2096 wrote to memory of 2908	2096	P I.exe	33
PID 2096 wrote to memory of 2908	2096	P I.exe	33
PID 2096 wrote to memory of 2908	2096	P I.exe	33
PID 2096 wrote to memory of 2908	2096	P I.exe	33
PID 2096 wrote to memory of 2908	2096	P I.exe	33
PID 2096 wrote to memory of 2908	2096	P I.exe	33
PID 2096 wrote to memory of 2908	2096	P I.exe	33
PID 2096 wrote to memory of 2908	2096	P I.exe	33
PID 2096 wrote to memory of 2908	2096	P I.exe	33

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	P I.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	P I.exe

C:\Users\Admin\AppData\Local\Temp\P I.exe
"C:\Users\Admin\AppData\Local\Temp\P I.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2096
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jwgRgKeTJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5235.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2256
- C:\Users\Admin\AppData\Local\Temp\P I.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:2908

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5235.tmp

Filesize
1KB

MD5
cd7a25789117249c5d4d7ac49c66d172

SHA1
510a7ad636410c090edba8504245f7ddd7169070

SHA256
c14e7456fefa2b640e2f825e0fa36ca471a4201477a3331de2578bd2f10dbc86

SHA512
30cc2433efacfca2802573a3adb6297663db6b6a5ed6e6eb3ce691d5280b538eaaab91ba804fbc9bebe528d9697139f92e587506b0f26a09dc3aefd4556b8fb1

Download Submit
memory/2096-25-0x0000000074F90000-0x000000007553B000-memory.dmp

Filesize
5.7MB

Download
memory/2096-1-0x0000000074F90000-0x000000007553B000-memory.dmp

Filesize
5.7MB

Download
memory/2096-2-0x0000000074F90000-0x000000007553B000-memory.dmp

Filesize
5.7MB

Download
memory/2096-3-0x0000000074F90000-0x000000007553B000-memory.dmp

Filesize
5.7MB

Download
memory/2096-0-0x0000000074F91000-0x0000000074F92000-memory.dmp

Filesize
4KB

Download
memory/2908-26-0x0000000074F90000-0x000000007553B000-memory.dmp

Filesize
5.7MB

Download
memory/2908-23-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2908-13-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2908-24-0x0000000074F90000-0x000000007553B000-memory.dmp

Filesize
5.7MB

Download
memory/2908-21-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2908-19-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2908-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2908-11-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2908-9-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2908-15-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2908-27-0x0000000074F90000-0x000000007553B000-memory.dmp

Filesize
5.7MB

Download
memory/2908-28-0x0000000074F90000-0x000000007553B000-memory.dmp

Filesize
5.7MB

Download
memory/2908-30-0x0000000074F90000-0x000000007553B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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