agenttesla | 3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4

General

Target

3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe
Size

1.6MB
MD5

04ce0ad4617420d4fc0f2aa5a359c610
SHA1

fdaabb7ed71db348e30844efd0e05032deead7ab
SHA256

3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4
SHA512

b42b96f6297fbd3c2e7ee3aee227561f858f0827666a8379ffc1ebef6e48764d31822b69ed2240559e89043ca3167412644bbac2b11187073aacbb9756861627
SSDEEP

24576:rYD24how+nCxz27C0jZAIKo3hOKU8MSn3/G1CS+tBXSdIUpHKE4PhyVw:s2xw+667C0jO1GtBg7lKE4PYS

Score

10^/10

agenttesla collection discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
stanstan22

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/3840-7-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1276 set thread context of 3840	1276	3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe	85

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	3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1276	3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe
3840	3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe
3840	3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1276	3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe
Token: 33	1276	3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe
Token: SeIncBasePriorityPrivilege	1276	3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe
Token: SeDebugPrivilege	3840	3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1276 wrote to memory of 3840	1276	3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe	85
PID 1276 wrote to memory of 3840	1276	3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe	85
PID 1276 wrote to memory of 3840	1276	3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe	85
PID 1276 wrote to memory of 3840	1276	3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe	85
PID 1276 wrote to memory of 3840	1276	3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe	85
PID 1276 wrote to memory of 3840	1276	3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe	85
PID 1276 wrote to memory of 3840	1276	3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe	85
PID 1276 wrote to memory of 3840	1276	3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe	85

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe

C:\Users\Admin\AppData\Local\Temp\3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe
"C:\Users\Admin\AppData\Local\Temp\3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1276
- C:\Users\Admin\AppData\Local\Temp\3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe
  "C:/Users/Admin/AppData/Local/Temp/3f8fa6737657f09e1c255549c1f370903ea53a40e79518e1f483acd798ccd8b4.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3840

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

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

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Downloads

memory/1276-0-0x00000000747DE000-0x00000000747DF000-memory.dmp

Filesize
4KB

Download
memory/1276-1-0x00000000009D0000-0x0000000000B76000-memory.dmp

Filesize
1.6MB

Download
memory/1276-2-0x0000000005B10000-0x00000000060B4000-memory.dmp

Filesize
5.6MB

Download
memory/1276-3-0x0000000005600000-0x0000000005692000-memory.dmp

Filesize
584KB

Download
memory/1276-4-0x00000000056A0000-0x000000000573C000-memory.dmp

Filesize
624KB

Download
memory/1276-5-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/1276-10-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/3840-9-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/3840-8-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/3840-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3840-11-0x0000000005220000-0x0000000005238000-memory.dmp

Filesize
96KB

Download
memory/3840-12-0x00000000056C0000-0x0000000005726000-memory.dmp

Filesize
408KB

Download
memory/3840-13-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/3840-14-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/3840-15-0x0000000006020000-0x0000000006070000-memory.dmp

Filesize
320KB

Download
memory/3840-16-0x00000000056B0000-0x00000000056BA000-memory.dmp

Filesize
40KB

Download

Analysis

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