agenttesla | 30fdec40461cec47e87e53025ee73ae26a4f128c8bb2f81e3915b010a8a1b6f4

Analysis

max time kernel
67s
max time network
53s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
30-04-2024 15:37

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General

Target

0a151230d2b5766a3dc778c2dd4c0895_JaffaCakes118.exe
Size

561KB
MD5

0a151230d2b5766a3dc778c2dd4c0895
SHA1

490dfddccfe1b8ec30e571949c02b8a05ebb44c8
SHA256

30fdec40461cec47e87e53025ee73ae26a4f128c8bb2f81e3915b010a8a1b6f4
SHA512

f64a5506ff214fb5b8cb26288d3ab0484980c5df7e21ee9c96519d2bfd15c36b99f8b41ef59607e119122e002d1b3b0763a05a79f87bffac9953553176485497
SSDEEP

6144:/sGf4nL24vAlcciSVz6QGKuAzxEzDla7PN8tW1qzfIO3wz0Co3sLuwhOA:/sXL24dcb2941X7F8tTW

Score

10^/10

agenttesla zgrat agilenet collection keylogger persistence rat spyware stealer trojan

Malware Config

Signatures

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

Detect ZGRat V1 1 IoCs

resource	yara_rule
behavioral2/memory/1888-4-0x0000000005700000-0x0000000005720000-memory.dmp	family_zgrat_v1

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat

Obfuscated with Agile.Net obfuscator 2 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

resource	yara_rule
behavioral2/memory/1888-4-0x0000000005700000-0x0000000005720000-memory.dmp	agile_net
behavioral2/memory/1888-5-0x0000000005930000-0x0000000005940000-memory.dmp	agile_net

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 2 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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.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-1-5-21-2860750803-256193626-1801997576-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MyOtApp = "C:\\Users\\Admin\\AppData\\Roaming\\MyOtApp\\MyOtApp.exe"	RegAsm.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
9	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1888 set thread context of 1828	1888	0a151230d2b5766a3dc778c2dd4c0895_JaffaCakes118.exe	86

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1828	RegAsm.exe
1828	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1888	0a151230d2b5766a3dc778c2dd4c0895_JaffaCakes118.exe
Token: SeDebugPrivilege	1828	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1828	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1888 wrote to memory of 1828	1888	0a151230d2b5766a3dc778c2dd4c0895_JaffaCakes118.exe	86
PID 1888 wrote to memory of 1828	1888	0a151230d2b5766a3dc778c2dd4c0895_JaffaCakes118.exe	86
PID 1888 wrote to memory of 1828	1888	0a151230d2b5766a3dc778c2dd4c0895_JaffaCakes118.exe	86
PID 1888 wrote to memory of 1828	1888	0a151230d2b5766a3dc778c2dd4c0895_JaffaCakes118.exe	86
PID 1888 wrote to memory of 1828	1888	0a151230d2b5766a3dc778c2dd4c0895_JaffaCakes118.exe	86
PID 1888 wrote to memory of 1828	1888	0a151230d2b5766a3dc778c2dd4c0895_JaffaCakes118.exe	86
PID 1888 wrote to memory of 1828	1888	0a151230d2b5766a3dc778c2dd4c0895_JaffaCakes118.exe	86
PID 1888 wrote to memory of 1828	1888	0a151230d2b5766a3dc778c2dd4c0895_JaffaCakes118.exe	86

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\0a151230d2b5766a3dc778c2dd4c0895_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0a151230d2b5766a3dc778c2dd4c0895_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1888
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:1828

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1828-13-0x0000000005320000-0x0000000005338000-memory.dmp

Filesize
96KB

Download
memory/1828-12-0x00000000050F0000-0x0000000005100000-memory.dmp

Filesize
64KB

Download
memory/1828-8-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1828-11-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/1828-18-0x0000000006900000-0x0000000006950000-memory.dmp

Filesize
320KB

Download
memory/1828-17-0x00000000063A0000-0x00000000063AA000-memory.dmp

Filesize
40KB

Download
memory/1828-15-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/1828-14-0x00000000053C0000-0x0000000005426000-memory.dmp

Filesize
408KB

Download
memory/1828-19-0x00000000069A0000-0x00000000069AA000-memory.dmp

Filesize
40KB

Download
memory/1888-5-0x0000000005930000-0x0000000005940000-memory.dmp

Filesize
64KB

Download
memory/1888-3-0x0000000005730000-0x00000000057C2000-memory.dmp

Filesize
584KB

Download
memory/1888-2-0x0000000005CE0000-0x0000000006284000-memory.dmp

Filesize
5.6MB

Download
memory/1888-0-0x0000000000CE0000-0x0000000000D72000-memory.dmp

Filesize
584KB

Download
memory/1888-7-0x0000000006990000-0x0000000006A2C000-memory.dmp

Filesize
624KB

Download
memory/1888-6-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/1888-1-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/1888-4-0x0000000005700000-0x0000000005720000-memory.dmp

Filesize
128KB

Download
memory/1888-10-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download