agenttesla | 8d0a7f38770625735025ca785e6158b687a83838dfcf8d06e4583718d5c8a339

General

Target

3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe
Size

907KB
MD5

3f77e55a36a611437d5a3c55c5b10ddf
SHA1

d2ce8943ed5e7b45bcdebda0d690fbad49a70844
SHA256

8d0a7f38770625735025ca785e6158b687a83838dfcf8d06e4583718d5c8a339
SHA512

678c84da8c95ffbcf4192dfcda4d9587e510c041893831c0e86b03359ac66c72ddf4d17968bea88c29bbfd2ef7dff17c56e7bda607ec31f911721dec12ec0fe3
SSDEEP

12288:WwwlJdNo7HLlXOs8h+HD5wVJmD96FZGD9tHK7zczKbogyLF:zwngXrqimV06LeGuKboF

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.karanex.com
Port:
587
Username:
[email protected]
Password:
roz%KtT3

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/2668-14-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2668-11-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2668-10-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2668-18-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2668-16-0x0000000000400000-0x000000000043C000-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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1928 set thread context of 2668	1928	3f77e55a36a611437d5a3c55c5b10ddf_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	3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2668	3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe
2668	3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2668	3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2668	3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2668	3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1928 wrote to memory of 2668	1928	3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe	31
PID 1928 wrote to memory of 2668	1928	3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe	31
PID 1928 wrote to memory of 2668	1928	3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe	31
PID 1928 wrote to memory of 2668	1928	3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe	31
PID 1928 wrote to memory of 2668	1928	3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe	31
PID 1928 wrote to memory of 2668	1928	3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe	31
PID 1928 wrote to memory of 2668	1928	3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe	31
PID 1928 wrote to memory of 2668	1928	3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe	31
PID 1928 wrote to memory of 2668	1928	3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1928
- C:\Users\Admin\AppData\Local\Temp\3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\3f77e55a36a611437d5a3c55c5b10ddf_JaffaCakes118.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:2668

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/1928-19-0x0000000074670000-0x0000000074D5E000-memory.dmp

Filesize
6.9MB

Download
memory/1928-2-0x0000000074670000-0x0000000074D5E000-memory.dmp

Filesize
6.9MB

Download
memory/1928-0-0x000000007467E000-0x000000007467F000-memory.dmp

Filesize
4KB

Download
memory/1928-3-0x0000000000450000-0x0000000000466000-memory.dmp

Filesize
88KB

Download
memory/1928-4-0x000000007467E000-0x000000007467F000-memory.dmp

Filesize
4KB

Download
memory/1928-5-0x0000000074670000-0x0000000074D5E000-memory.dmp

Filesize
6.9MB

Download
memory/1928-6-0x00000000056B0000-0x0000000005752000-memory.dmp

Filesize
648KB

Download
memory/1928-7-0x0000000000CE0000-0x0000000000D1C000-memory.dmp

Filesize
240KB

Download
memory/1928-1-0x00000000013E0000-0x00000000014C8000-memory.dmp

Filesize
928KB

Download
memory/2668-25-0x0000000074670000-0x0000000074D5E000-memory.dmp

Filesize
6.9MB

Download
memory/2668-16-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2668-8-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2668-9-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2668-10-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2668-18-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2668-14-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2668-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2668-20-0x0000000074670000-0x0000000074D5E000-memory.dmp

Filesize
6.9MB

Download
memory/2668-21-0x0000000074670000-0x0000000074D5E000-memory.dmp

Filesize
6.9MB

Download
memory/2668-22-0x0000000074670000-0x0000000074D5E000-memory.dmp

Filesize
6.9MB

Download
memory/2668-23-0x0000000074670000-0x0000000074D5E000-memory.dmp

Filesize
6.9MB

Download
memory/2668-24-0x0000000074670000-0x0000000074D5E000-memory.dmp

Filesize
6.9MB

Download
memory/2668-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download

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