agenttesla | f92b0ac5d72a8bead386ad9bca4fb51523f2da63f6d3a2e195bc0e83765022c1

General

Target

278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe
Size

820KB
MD5

278462f6e98c795e1f617ebb63cd9b70
SHA1

a8e8279359d48aea2980a3d9ef3e0c682ebf13cd
SHA256

f92b0ac5d72a8bead386ad9bca4fb51523f2da63f6d3a2e195bc0e83765022c1
SHA512

305232be4197314dee85cd4fcf17fe5433655c66028fcd9c366c19ee963db3de0e1826c34b97a7cb2b1566cbbb170091b9d51ae58bf5df0c4d8be71a05575f2a
SSDEEP

12288:21Cw+Jc8uvx6k9y/n93aPtwQKp2pUsdRB0HK7zS6L5cAI7RGZPqKv6jVne59wXWi:ty2939QJdxW6dcAI9GZPRydezDWIO

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.scriptcopy.org
Port:
587
Username:
[email protected]
Password:
t%K@flX5~T45
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 1 IoCs

resource	yara_rule
behavioral2/memory/976-13-0x0000000000400000-0x000000000043C000-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-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4544 set thread context of 976	4544	278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe	91

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	278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4544	278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe
976	278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe
976	278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4544	278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe
Token: SeDebugPrivilege	976	278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
976	278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4544 wrote to memory of 976	4544	278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe	91
PID 4544 wrote to memory of 976	4544	278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe	91
PID 4544 wrote to memory of 976	4544	278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe	91
PID 4544 wrote to memory of 976	4544	278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe	91
PID 4544 wrote to memory of 976	4544	278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe	91
PID 4544 wrote to memory of 976	4544	278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe	91
PID 4544 wrote to memory of 976	4544	278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe	91
PID 4544 wrote to memory of 976	4544	278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4544
- C:\Users\Admin\AppData\Local\Temp\278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\278462f6e98c795e1f617ebb63cd9b70_JaffaCakes118.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:976

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/976-13-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/976-23-0x00000000746E0000-0x0000000074E90000-memory.dmp

Filesize
7.7MB

Download
memory/976-22-0x0000000006390000-0x00000000063E0000-memory.dmp

Filesize
320KB

Download
memory/976-21-0x00000000746E0000-0x0000000074E90000-memory.dmp

Filesize
7.7MB

Download
memory/976-20-0x00000000746E0000-0x0000000074E90000-memory.dmp

Filesize
7.7MB

Download
memory/976-19-0x0000000005740000-0x00000000057A6000-memory.dmp

Filesize
408KB

Download
memory/976-18-0x00000000053A0000-0x00000000053B8000-memory.dmp

Filesize
96KB

Download
memory/976-17-0x00000000746E0000-0x0000000074E90000-memory.dmp

Filesize
7.7MB

Download
memory/976-15-0x00000000746E0000-0x0000000074E90000-memory.dmp

Filesize
7.7MB

Download
memory/4544-5-0x00000000055A0000-0x00000000055AA000-memory.dmp

Filesize
40KB

Download
memory/4544-16-0x00000000746E0000-0x0000000074E90000-memory.dmp

Filesize
7.7MB

Download
memory/4544-11-0x00000000084A0000-0x0000000008540000-memory.dmp

Filesize
640KB

Download
memory/4544-12-0x000000000ABF0000-0x000000000AC2C000-memory.dmp

Filesize
240KB

Download
memory/4544-9-0x00000000746EE000-0x00000000746EF000-memory.dmp

Filesize
4KB

Download
memory/4544-8-0x0000000008370000-0x0000000008386000-memory.dmp

Filesize
88KB

Download
memory/4544-7-0x00000000746E0000-0x0000000074E90000-memory.dmp

Filesize
7.7MB

Download
memory/4544-10-0x00000000746E0000-0x0000000074E90000-memory.dmp

Filesize
7.7MB

Download
memory/4544-6-0x00000000057E0000-0x0000000005836000-memory.dmp

Filesize
344KB

Download
memory/4544-0-0x00000000746EE000-0x00000000746EF000-memory.dmp

Filesize
4KB

Download
memory/4544-4-0x00000000055E0000-0x0000000005672000-memory.dmp

Filesize
584KB

Download
memory/4544-3-0x0000000005AF0000-0x0000000006094000-memory.dmp

Filesize
5.6MB

Download
memory/4544-2-0x00000000054A0000-0x000000000553C000-memory.dmp

Filesize
624KB

Download
memory/4544-1-0x0000000000A70000-0x0000000000B42000-memory.dmp

Filesize
840KB

Download

Analysis

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