agenttesla | 8b334c052aa35c751a90affd750f2f0522fe23c68ae332cce60d4c1337a61261

General

Target

f6cb6eb02235981971620899d88aa337_JaffaCakes118.exe
Size

416KB
MD5

f6cb6eb02235981971620899d88aa337
SHA1

912eb370190e513ebb0a130bfd2782a4fc2661bc
SHA256

8b334c052aa35c751a90affd750f2f0522fe23c68ae332cce60d4c1337a61261
SHA512

98cfda3bb8c3bc3c98ff3e577076212e2cc5c3b7379b73a1596bf00371ce5712ecd72e6986d6c67fe89db7adba51c6608c3b86473ec8a6336eda4520776cd50f
SSDEEP

6144:GA3TDL3TqokDj/ZyqigHv8qXwuTdJPCRIhlIJl5gAI8OCYrNRaq9qh+3tLglf:GSXkAqiOvKpRPJfgJVCK9glf

Score

10^/10

agenttesla collection discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.privateemail.com
Port:
587
Username:
[email protected]
Password:
@kingmezz.xyz

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/3900-7-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HJdyTuap.exe	f6cb6eb02235981971620899d88aa337_JaffaCakes118.exe

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-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4992 set thread context of 3900	4992	f6cb6eb02235981971620899d88aa337_JaffaCakes118.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	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f6cb6eb02235981971620899d88aa337_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3900	RegAsm.exe
3900	RegAsm.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4992	f6cb6eb02235981971620899d88aa337_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3900	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3900	RegAsm.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4992 wrote to memory of 3900	4992	f6cb6eb02235981971620899d88aa337_JaffaCakes118.exe	85
PID 4992 wrote to memory of 3900	4992	f6cb6eb02235981971620899d88aa337_JaffaCakes118.exe	85
PID 4992 wrote to memory of 3900	4992	f6cb6eb02235981971620899d88aa337_JaffaCakes118.exe	85
PID 4992 wrote to memory of 3900	4992	f6cb6eb02235981971620899d88aa337_JaffaCakes118.exe	85

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\f6cb6eb02235981971620899d88aa337_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f6cb6eb02235981971620899d88aa337_JaffaCakes118.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4992
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:3900

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/3900-17-0x00000000067B0000-0x0000000006816000-memory.dmp

Filesize
408KB

Download
memory/3900-15-0x00000000058A0000-0x000000000593C000-memory.dmp

Filesize
624KB

Download
memory/3900-20-0x0000000006F80000-0x0000000006FD0000-memory.dmp

Filesize
320KB

Download
memory/3900-11-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/3900-18-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/3900-16-0x00000000059B0000-0x00000000059C8000-memory.dmp

Filesize
96KB

Download
memory/3900-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3900-12-0x0000000005FC0000-0x0000000006564000-memory.dmp

Filesize
5.6MB

Download
memory/3900-21-0x0000000006D60000-0x0000000006D6A000-memory.dmp

Filesize
40KB

Download
memory/3900-19-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/3900-14-0x0000000005800000-0x0000000005892000-memory.dmp

Filesize
584KB

Download
memory/3900-13-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4992-9-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4992-1-0x0000000000EE0000-0x0000000000F50000-memory.dmp

Filesize
448KB

Download
memory/4992-6-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4992-0-0x00000000746DE000-0x00000000746DF000-memory.dmp

Filesize
4KB

Download
memory/4992-5-0x00000000746DE000-0x00000000746DF000-memory.dmp

Filesize
4KB

Download
memory/4992-4-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4992-2-0x00000000056B0000-0x0000000005706000-memory.dmp

Filesize
344KB

Download
memory/4992-10-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download

Analysis

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