agenttesla | f3fb785e98809c6c4ea0ca8cb576c0603edfda221ba32a9dedb46cb91c663fd4

General

Target

purchase order (2).exe
Size

712KB
MD5

3b82ec5db945c6ec405ccc6bd6079e6a
SHA1

fe1bef4b53ffedd007e9fe294c63f3d4f535e88b
SHA256

ae98cbea751b110688b554259e94536ad47799d68af23f5c499f0021c09861b0
SHA512

c4636acbe51f2ad0762518065acd06a1d8a1ff1fb659919bf372a9a7a0a585d915110e4f4bace909d3e91078ef4c2afe23cb99c44e07e0b9e8a75d7ba839b152
SSDEEP

12288:p6udAV8HAFm++rHsI19PJ+arP9wJNyowhUr/RQRTqaACB+x77IJfi3H:yGAFmRrHsQ9IkP9k/wsCB+xos

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.yitaipackaging.com
Port:
587
Username:
[email protected]
Password:
22799213

Signatures

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

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	purchase order (2).exe

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	purchase order (2).exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order (2).exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order (2).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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\gKWBf = "C:\\Users\\Admin\\AppData\\Roaming\\gKWBf\\gKWBf.exe"	purchase order (2).exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1300 set thread context of 2972	1300	purchase order (2).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 4 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	REG.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	purchase order (2).exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	purchase order (2).exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
3024	REG.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
2808	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1300	purchase order (2).exe
1300	purchase order (2).exe
1300	purchase order (2).exe
1300	purchase order (2).exe
2972	purchase order (2).exe
2972	purchase order (2).exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1300	purchase order (2).exe
Token: SeDebugPrivilege	2972	purchase order (2).exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1300 wrote to memory of 2808	1300	purchase order (2).exe	31
PID 1300 wrote to memory of 2808	1300	purchase order (2).exe	31
PID 1300 wrote to memory of 2808	1300	purchase order (2).exe	31
PID 1300 wrote to memory of 2808	1300	purchase order (2).exe	31
PID 1300 wrote to memory of 2972	1300	purchase order (2).exe	33
PID 1300 wrote to memory of 2972	1300	purchase order (2).exe	33
PID 1300 wrote to memory of 2972	1300	purchase order (2).exe	33
PID 1300 wrote to memory of 2972	1300	purchase order (2).exe	33
PID 1300 wrote to memory of 2972	1300	purchase order (2).exe	33
PID 1300 wrote to memory of 2972	1300	purchase order (2).exe	33
PID 1300 wrote to memory of 2972	1300	purchase order (2).exe	33
PID 1300 wrote to memory of 2972	1300	purchase order (2).exe	33
PID 1300 wrote to memory of 2972	1300	purchase order (2).exe	33
PID 2972 wrote to memory of 3024	2972	purchase order (2).exe	35
PID 2972 wrote to memory of 3024	2972	purchase order (2).exe	35
PID 2972 wrote to memory of 3024	2972	purchase order (2).exe	35
PID 2972 wrote to memory of 3024	2972	purchase order (2).exe	35

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	purchase order (2).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	purchase order (2).exe

C:\Users\Admin\AppData\Local\Temp\purchase order (2).exe
"C:\Users\Admin\AppData\Local\Temp\purchase order (2).exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1300
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YKtXZOWu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5310.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2808
- C:\Users\Admin\AppData\Local\Temp\purchase order (2).exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:2972
- - C:\Windows\SysWOW64\REG.exe
    REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies registry key
    PID:3024

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

2

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\tmp5310.tmp

Filesize
1KB

MD5
dd2bf4516c370a77cee0b9956048051b

SHA1
beda189fa96d2e5e179fda1af175675dec4db0ce

SHA256
9a74d598db98ee8c274f74ec5a6957fbe633ec6b1d06d0007d41ef8e51b5cd31

SHA512
1e2abee61bcb4ab82dd93a2aaf43e73320818b9a23a6e8a33d9810e5feadb647cabb52d605096b71611bbf82b2d3c89c6a8985597ce1166a9087a6b1a31bf4d9

Download Submit
memory/1300-0-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

Filesize
4KB

Download
memory/1300-1-0x0000000001160000-0x0000000001218000-memory.dmp

Filesize
736KB

Download
memory/1300-2-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/1300-3-0x0000000000490000-0x00000000004A2000-memory.dmp

Filesize
72KB

Download
memory/1300-4-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/1300-5-0x0000000005690000-0x000000000570A000-memory.dmp

Filesize
488KB

Download
memory/1300-6-0x0000000005710000-0x0000000005780000-memory.dmp

Filesize
448KB

Download
memory/1300-27-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2972-22-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2972-25-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2972-20-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2972-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2972-16-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2972-14-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2972-12-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2972-10-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2972-28-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2972-26-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2972-29-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads