Malware Analysis Report

2024-08-06 11:14

Sample ID 240614-r4wttayerk
Target aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118
SHA256 118715ae5a95abe6d4f72e498d390c398db5b8fe2240293c76c5356460cb7539
Tags
guestlox228 quasar spyware trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

118715ae5a95abe6d4f72e498d390c398db5b8fe2240293c76c5356460cb7539

Threat Level: Known bad

The file aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

guestlox228 quasar spyware trojan

Quasar payload

Quasar family

Quasar RAT

Executes dropped EXE

Loads dropped DLL

Looks up external IP address via web service

Drops file in System32 directory

Unsigned PE

Creates scheduled task(s)

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Scheduled Task/Job
T1053
Persistence
TA0003
Scheduled Task/Job
T1053
Privilege Escalation
TA0004
Scheduled Task/Job
T1053
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-14 14:45

Signatures

Quasar family

quasar

Quasar payload

Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-14 14:45

Reported

2024-06-14 14:47

Platform

win7-20240508-en

Max time kernel

138s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe"

Signatures

Quasar RAT

trojan spyware quasar

Quasar payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\SubDir\svchost.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A
N/A api.ipify.org N/A N/A
N/A ip-api.com N/A N/A
N/A api.ipify.org N/A N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\SubDir\svchost.exe C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\SubDir\svchost.exe C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\SubDir\svchost.exe C:\Windows\SysWOW64\SubDir\svchost.exe N/A
File opened for modification C:\Windows\SysWOW64\SubDir C:\Windows\SysWOW64\SubDir\svchost.exe N/A

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\SubDir\svchost.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\SubDir\svchost.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1688 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 1688 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 1688 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 1688 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 1688 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe C:\Windows\SysWOW64\SubDir\svchost.exe
PID 1688 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe C:\Windows\SysWOW64\SubDir\svchost.exe
PID 1688 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe C:\Windows\SysWOW64\SubDir\svchost.exe
PID 1688 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe C:\Windows\SysWOW64\SubDir\svchost.exe
PID 2556 wrote to memory of 2240 N/A C:\Windows\SysWOW64\SubDir\svchost.exe C:\Windows\SysWOW64\schtasks.exe
PID 2556 wrote to memory of 2240 N/A C:\Windows\SysWOW64\SubDir\svchost.exe C:\Windows\SysWOW64\schtasks.exe
PID 2556 wrote to memory of 2240 N/A C:\Windows\SysWOW64\SubDir\svchost.exe C:\Windows\SysWOW64\schtasks.exe
PID 2556 wrote to memory of 2240 N/A C:\Windows\SysWOW64\SubDir\svchost.exe C:\Windows\SysWOW64\schtasks.exe

Processes

C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

"schtasks" /create /tn "Microsoft OneDrive" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe" /rl HIGHEST /f

C:\Windows\SysWOW64\SubDir\svchost.exe

"C:\Windows\SysWOW64\SubDir\svchost.exe"

C:\Windows\SysWOW64\schtasks.exe

"schtasks" /create /tn "Microsoft OneDrive" /sc ONLOGON /tr "C:\Windows\SysWOW64\SubDir\svchost.exe" /rl HIGHEST /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 ip-api.com udp
US 8.8.8.8:53 freegeoip.net udp
US 8.8.8.8:53 api.ipify.org udp
US 8.8.8.8:53 ip-api.com udp
US 8.8.8.8:53 freegeoip.net udp
US 8.8.8.8:53 api.ipify.org udp
ID 103.28.149.74:1604 tcp
ID 103.28.149.74:1604 tcp
ID 103.28.149.74:1604 tcp

Files

memory/1688-0-0x00000000744FE000-0x00000000744FF000-memory.dmp

memory/1688-1-0x0000000000240000-0x000000000029E000-memory.dmp

memory/1688-2-0x00000000744F0000-0x0000000074BDE000-memory.dmp

memory/1688-3-0x00000000744FE000-0x00000000744FF000-memory.dmp

memory/1688-4-0x00000000744F0000-0x0000000074BDE000-memory.dmp

\Windows\SysWOW64\SubDir\svchost.exe

MD5 aa3e98f2f621c0f160b64bf9a5578ea4
SHA1 89f79d0b76b1304c3aa46ef990dc372c7f9418a1
SHA256 118715ae5a95abe6d4f72e498d390c398db5b8fe2240293c76c5356460cb7539
SHA512 918c1e5293697d7b63c66f1e4a65799e967a35b644bda077fa33edaa4fff4f1c9a9383f332506804ac805ce176d4a5abbbb1a21b21c39d9c6bf9d05780e3ee77

memory/2556-12-0x0000000001370000-0x00000000013CE000-memory.dmp

memory/2556-14-0x00000000744F0000-0x0000000074BDE000-memory.dmp

memory/2556-13-0x00000000744F0000-0x0000000074BDE000-memory.dmp

memory/1688-15-0x00000000744F0000-0x0000000074BDE000-memory.dmp

memory/2556-16-0x00000000744F0000-0x0000000074BDE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-14 14:45

Reported

2024-06-14 14:47

Platform

win10v2004-20240508-en

Max time kernel

126s

Max time network

143s

Command Line

"C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe"

Signatures

Quasar RAT

trojan spyware quasar

Quasar payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\SubDir\svchost.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A
N/A api.ipify.org N/A N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\SubDir\svchost.exe C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\SubDir\svchost.exe C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\SubDir\svchost.exe C:\Windows\SysWOW64\SubDir\svchost.exe N/A
File opened for modification C:\Windows\SysWOW64\SubDir C:\Windows\SysWOW64\SubDir\svchost.exe N/A

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\SubDir\svchost.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\SubDir\svchost.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2300 wrote to memory of 1412 N/A C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2300 wrote to memory of 1412 N/A C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2300 wrote to memory of 1412 N/A C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2300 wrote to memory of 1348 N/A C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe C:\Windows\SysWOW64\SubDir\svchost.exe
PID 2300 wrote to memory of 1348 N/A C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe C:\Windows\SysWOW64\SubDir\svchost.exe
PID 2300 wrote to memory of 1348 N/A C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe C:\Windows\SysWOW64\SubDir\svchost.exe
PID 1348 wrote to memory of 3356 N/A C:\Windows\SysWOW64\SubDir\svchost.exe C:\Windows\SysWOW64\schtasks.exe
PID 1348 wrote to memory of 3356 N/A C:\Windows\SysWOW64\SubDir\svchost.exe C:\Windows\SysWOW64\schtasks.exe
PID 1348 wrote to memory of 3356 N/A C:\Windows\SysWOW64\SubDir\svchost.exe C:\Windows\SysWOW64\schtasks.exe

Processes

C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

"schtasks" /create /tn "Microsoft OneDrive" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\aa3e98f2f621c0f160b64bf9a5578ea4_JaffaCakes118.exe" /rl HIGHEST /f

C:\Windows\SysWOW64\SubDir\svchost.exe

"C:\Windows\SysWOW64\SubDir\svchost.exe"

C:\Windows\SysWOW64\schtasks.exe

"schtasks" /create /tn "Microsoft OneDrive" /sc ONLOGON /tr "C:\Windows\SysWOW64\SubDir\svchost.exe" /rl HIGHEST /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 ip-api.com udp
US 8.8.8.8:53 freegeoip.net udp
US 8.8.8.8:53 api.ipify.org udp
ID 103.28.149.74:1604 tcp
ID 103.28.149.74:1604 tcp
ID 103.28.149.74:1604 tcp
ID 103.28.149.74:1604 tcp
ID 103.28.149.74:1604 tcp

Files

memory/2300-0-0x0000000074E6E000-0x0000000074E6F000-memory.dmp

memory/2300-1-0x0000000000520000-0x000000000057E000-memory.dmp

memory/2300-2-0x0000000005410000-0x00000000059B4000-memory.dmp

memory/2300-3-0x0000000004F50000-0x0000000004FE2000-memory.dmp

memory/2300-4-0x0000000074E60000-0x0000000075610000-memory.dmp

memory/2300-5-0x0000000005040000-0x00000000050A6000-memory.dmp

memory/2300-6-0x0000000005C60000-0x0000000005C72000-memory.dmp

memory/2300-7-0x0000000074E6E000-0x0000000074E6F000-memory.dmp

memory/2300-8-0x0000000074E60000-0x0000000075610000-memory.dmp

C:\Windows\SysWOW64\SubDir\svchost.exe

MD5 aa3e98f2f621c0f160b64bf9a5578ea4
SHA1 89f79d0b76b1304c3aa46ef990dc372c7f9418a1
SHA256 118715ae5a95abe6d4f72e498d390c398db5b8fe2240293c76c5356460cb7539
SHA512 918c1e5293697d7b63c66f1e4a65799e967a35b644bda077fa33edaa4fff4f1c9a9383f332506804ac805ce176d4a5abbbb1a21b21c39d9c6bf9d05780e3ee77

memory/2300-15-0x0000000074E60000-0x0000000075610000-memory.dmp

memory/1348-16-0x0000000074E60000-0x0000000075610000-memory.dmp

memory/1348-18-0x0000000007290000-0x000000000729A000-memory.dmp

memory/1348-19-0x0000000074E60000-0x0000000075610000-memory.dmp