agenttesla | ec572f29c5944e103f96273388179685dcc37e2d6bdbc72cc0dc5a812c977c2b

General

Target

28399130fbcc36c09075f2667e234c39_JaffaCakes118.exe
Size

865KB
MD5

28399130fbcc36c09075f2667e234c39
SHA1

116585ed8eee30f380e5dccb02986dbd0c59ab7d
SHA256

ec572f29c5944e103f96273388179685dcc37e2d6bdbc72cc0dc5a812c977c2b
SHA512

9b18f051b66012312ed5a962dbdc3ef52d7a5037ec2cd520a1a3550a0cfb7a00058c146625c6c89050b7f32b7a539946408ee220aa8666040b35692442313f5b
SSDEEP

12288:fYKEyB+FFMz45EHK7zQWGQ1avN9KfimmgCtDxr1rUk6pSHQ9yl:fYKElFFt0WevTKWtwSH

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.brimaq.com
Port:
587
Username:
[email protected]
Password:
brimaQ2012
Email To:
[email protected]

Signatures

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

AgentTesla payload 5 IoCs

resource	yara_rule
behavioral1/memory/2956-20-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2956-18-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2956-16-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2956-12-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2956-10-0x0000000000400000-0x000000000043C000-memory.dmp	family_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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	28399130fbcc36c09075f2667e234c39_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	28399130fbcc36c09075f2667e234c39_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	28399130fbcc36c09075f2667e234c39_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1300 set thread context of 2956	1300	28399130fbcc36c09075f2667e234c39_JaffaCakes118.exe	31

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	28399130fbcc36c09075f2667e234c39_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	28399130fbcc36c09075f2667e234c39_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2956	28399130fbcc36c09075f2667e234c39_JaffaCakes118.exe
2956	28399130fbcc36c09075f2667e234c39_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2956	28399130fbcc36c09075f2667e234c39_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1300 wrote to memory of 2956	1300	28399130fbcc36c09075f2667e234c39_JaffaCakes118.exe	31
PID 1300 wrote to memory of 2956	1300	28399130fbcc36c09075f2667e234c39_JaffaCakes118.exe	31
PID 1300 wrote to memory of 2956	1300	28399130fbcc36c09075f2667e234c39_JaffaCakes118.exe	31
PID 1300 wrote to memory of 2956	1300	28399130fbcc36c09075f2667e234c39_JaffaCakes118.exe	31
PID 1300 wrote to memory of 2956	1300	28399130fbcc36c09075f2667e234c39_JaffaCakes118.exe	31
PID 1300 wrote to memory of 2956	1300	28399130fbcc36c09075f2667e234c39_JaffaCakes118.exe	31
PID 1300 wrote to memory of 2956	1300	28399130fbcc36c09075f2667e234c39_JaffaCakes118.exe	31
PID 1300 wrote to memory of 2956	1300	28399130fbcc36c09075f2667e234c39_JaffaCakes118.exe	31
PID 1300 wrote to memory of 2956	1300	28399130fbcc36c09075f2667e234c39_JaffaCakes118.exe	31

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	28399130fbcc36c09075f2667e234c39_JaffaCakes118.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	28399130fbcc36c09075f2667e234c39_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\28399130fbcc36c09075f2667e234c39_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\28399130fbcc36c09075f2667e234c39_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1300
- C:\Users\Admin\AppData\Local\Temp\28399130fbcc36c09075f2667e234c39_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\28399130fbcc36c09075f2667e234c39_JaffaCakes118.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:2956

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

5

T1552

Credentials In Files

4

T1552.001

Credentials in Registry

1

T1552.002

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

Filesize
4KB

Download
memory/1300-1-0x0000000000E10000-0x0000000000EEE000-memory.dmp

Filesize
888KB

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

Filesize
6.9MB

Download
memory/1300-3-0x0000000000320000-0x0000000000336000-memory.dmp

Filesize
88KB

Download
memory/1300-4-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

Filesize
4KB

Download
memory/1300-5-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/1300-6-0x0000000005880000-0x000000000591C000-memory.dmp

Filesize
624KB

Download
memory/1300-7-0x0000000004D00000-0x0000000004D3C000-memory.dmp

Filesize
240KB

Download
memory/1300-22-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2956-20-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2956-8-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2956-18-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2956-16-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2956-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2956-12-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2956-10-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2956-9-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2956-21-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2956-23-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2956-24-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2956-25-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2956-26-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2956-27-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download

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