agenttesla | b7547d2885080e93c770c9dd802920c77738c681e937db7e4ae796ad66942118

General

Target

PAYMENT BANK INSTRUCTIONS COPY.exe
Size

478KB
MD5

3087381212aa30da9121ca4fce4dc49c
SHA1

d705ee1d3e4be5523d137bafbd4ea87f7c77f057
SHA256

0ba4135b330637a98320e9ee0655cd3fa0423998e9fdf54b0e8e0ac85ba0f93f
SHA512

4f07a2c6b7b9e4ee31d2133dfb420782a23b23d96c34197cadc2003d765ad46a4bd99231e01494ca918edcfbba0a67201934aae7fd03c1f6a42f119f9560c61b
SSDEEP

6144:l6Uqd2GhN0hoFA8YB+yqV2ax7D4AFc7xooWm3lLcLctuW6Gt6MTZ7e65oq/t9ch2:cUi2iNqoC8xrMANWLcu2wZy6XS/kq+

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
sg2plcpnl0023.prod.sin2.secureserver.net
Port:
587
Username:
[email protected]
Password:
User@40378

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/1524-11-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

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

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-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4056 set thread context of 1524	4056	PAYMENT BANK INSTRUCTIONS COPY.exe	99

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	PAYMENT BANK INSTRUCTIONS COPY.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4056	PAYMENT BANK INSTRUCTIONS COPY.exe
4056	PAYMENT BANK INSTRUCTIONS COPY.exe
4056	PAYMENT BANK INSTRUCTIONS COPY.exe
4056	PAYMENT BANK INSTRUCTIONS COPY.exe
1524	RegSvcs.exe
1524	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4056	PAYMENT BANK INSTRUCTIONS COPY.exe
Token: SeDebugPrivilege	1524	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4056 wrote to memory of 1916	4056	PAYMENT BANK INSTRUCTIONS COPY.exe	98
PID 4056 wrote to memory of 1916	4056	PAYMENT BANK INSTRUCTIONS COPY.exe	98
PID 4056 wrote to memory of 1916	4056	PAYMENT BANK INSTRUCTIONS COPY.exe	98
PID 4056 wrote to memory of 1524	4056	PAYMENT BANK INSTRUCTIONS COPY.exe	99
PID 4056 wrote to memory of 1524	4056	PAYMENT BANK INSTRUCTIONS COPY.exe	99
PID 4056 wrote to memory of 1524	4056	PAYMENT BANK INSTRUCTIONS COPY.exe	99
PID 4056 wrote to memory of 1524	4056	PAYMENT BANK INSTRUCTIONS COPY.exe	99
PID 4056 wrote to memory of 1524	4056	PAYMENT BANK INSTRUCTIONS COPY.exe	99
PID 4056 wrote to memory of 1524	4056	PAYMENT BANK INSTRUCTIONS COPY.exe	99
PID 4056 wrote to memory of 1524	4056	PAYMENT BANK INSTRUCTIONS COPY.exe	99
PID 4056 wrote to memory of 1524	4056	PAYMENT BANK INSTRUCTIONS COPY.exe	99

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\PAYMENT BANK INSTRUCTIONS COPY.exe
"C:\Users\Admin\AppData\Local\Temp\PAYMENT BANK INSTRUCTIONS COPY.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4056
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:1916
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  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
  - outlook_office_path
  - outlook_win_path
  PID:1524

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

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/1524-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1524-24-0x0000000074610000-0x0000000074DC0000-memory.dmp

Filesize
7.7MB

Download
memory/1524-23-0x0000000074610000-0x0000000074DC0000-memory.dmp

Filesize
7.7MB

Download
memory/1524-22-0x0000000006B00000-0x0000000006B50000-memory.dmp

Filesize
320KB

Download
memory/1524-19-0x0000000074610000-0x0000000074DC0000-memory.dmp

Filesize
7.7MB

Download
memory/1524-18-0x0000000074610000-0x0000000074DC0000-memory.dmp

Filesize
7.7MB

Download
memory/1524-17-0x00000000066C0000-0x0000000006726000-memory.dmp

Filesize
408KB

Download
memory/1524-16-0x0000000005980000-0x0000000005998000-memory.dmp

Filesize
96KB

Download
memory/1524-15-0x0000000074610000-0x0000000074DC0000-memory.dmp

Filesize
7.7MB

Download
memory/1524-13-0x0000000074610000-0x0000000074DC0000-memory.dmp

Filesize
7.7MB

Download
memory/4056-5-0x0000000074610000-0x0000000074DC0000-memory.dmp

Filesize
7.7MB

Download
memory/4056-10-0x0000000006950000-0x00000000069B0000-memory.dmp

Filesize
384KB

Download
memory/4056-14-0x0000000074610000-0x0000000074DC0000-memory.dmp

Filesize
7.7MB

Download
memory/4056-9-0x0000000006750000-0x00000000067EC000-memory.dmp

Filesize
624KB

Download
memory/4056-8-0x0000000074610000-0x0000000074DC0000-memory.dmp

Filesize
7.7MB

Download
memory/4056-7-0x000000007461E000-0x000000007461F000-memory.dmp

Filesize
4KB

Download
memory/4056-6-0x0000000005AE0000-0x0000000005AEE000-memory.dmp

Filesize
56KB

Download
memory/4056-0-0x000000007461E000-0x000000007461F000-memory.dmp

Filesize
4KB

Download
memory/4056-4-0x0000000005970000-0x000000000597A000-memory.dmp

Filesize
40KB

Download
memory/4056-3-0x00000000058D0000-0x0000000005962000-memory.dmp

Filesize
584KB

Download
memory/4056-2-0x0000000005FA0000-0x0000000006544000-memory.dmp

Filesize
5.6MB

Download
memory/4056-1-0x0000000000FA0000-0x000000000101E000-memory.dmp

Filesize
504KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads