Malware Analysis Report

2024-10-23 21:28

Sample ID 240416-svqrwafa91
Target 2024-04-16_bc03059f709594662ca9f9f0e33bc7bd_icedid_xrat
SHA256 5855aec848037736bc17bb493f326b5354022bba6c3767755dc8a415adc34e2d
Tags
quasar office04 spyware trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

5855aec848037736bc17bb493f326b5354022bba6c3767755dc8a415adc34e2d

Threat Level: Known bad

The file 2024-04-16_bc03059f709594662ca9f9f0e33bc7bd_icedid_xrat was found to be: Known bad.

Malicious Activity Summary

quasar office04 spyware trojan

Quasar payload

Quasar RAT

Detects Windows executables referencing non-Windows User-Agents

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

Quasar family

Detects executables containing common artifacts observed in infostealers

Detects Windows executables referencing non-Windows User-Agents

Detects executables containing common artifacts observed in infostealers

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

Drops startup file

Executes dropped EXE

Loads dropped DLL

Unsigned PE

Uses Task Scheduler COM API

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Creates scheduled task(s)

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-16 15:27

Signatures

Detects Windows executables referencing non-Windows User-Agents

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

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

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

Detects executables containing common artifacts observed in infostealers

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

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

2024-04-16 15:27

Reported

2024-04-16 15:29

Platform

win7-20240221-en

Max time kernel

128s

Max time network

141s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-04-16_bc03059f709594662ca9f9f0e33bc7bd_icedid_xrat.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

Detects Windows executables referencing non-Windows User-Agents

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

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

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

Detects executables containing common artifacts observed in infostealers

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

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe C:\Users\Admin\AppData\Local\Temp\2024-04-16_bc03059f709594662ca9f9f0e33bc7bd_icedid_xrat.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-04-16_bc03059f709594662ca9f9f0e33bc7bd_icedid_xrat.exe N/A

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-04-16_bc03059f709594662ca9f9f0e33bc7bd_icedid_xrat.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1444 wrote to memory of 2900 N/A C:\Users\Admin\AppData\Local\Temp\2024-04-16_bc03059f709594662ca9f9f0e33bc7bd_icedid_xrat.exe C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe
PID 1444 wrote to memory of 2900 N/A C:\Users\Admin\AppData\Local\Temp\2024-04-16_bc03059f709594662ca9f9f0e33bc7bd_icedid_xrat.exe C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe
PID 1444 wrote to memory of 2900 N/A C:\Users\Admin\AppData\Local\Temp\2024-04-16_bc03059f709594662ca9f9f0e33bc7bd_icedid_xrat.exe C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe
PID 1444 wrote to memory of 2900 N/A C:\Users\Admin\AppData\Local\Temp\2024-04-16_bc03059f709594662ca9f9f0e33bc7bd_icedid_xrat.exe C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe
PID 2900 wrote to memory of 2648 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe C:\Windows\system32\schtasks.exe
PID 2900 wrote to memory of 2648 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe C:\Windows\system32\schtasks.exe
PID 2900 wrote to memory of 2648 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe C:\Windows\system32\schtasks.exe
PID 2900 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
PID 2900 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
PID 2900 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
PID 2584 wrote to memory of 2476 N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe C:\Windows\system32\schtasks.exe
PID 2584 wrote to memory of 2476 N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe C:\Windows\system32\schtasks.exe
PID 2584 wrote to memory of 2476 N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe C:\Windows\system32\schtasks.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\2024-04-16_bc03059f709594662ca9f9f0e33bc7bd_icedid_xrat.exe

"C:\Users\Admin\AppData\Local\Temp\2024-04-16_bc03059f709594662ca9f9f0e33bc7bd_icedid_xrat.exe"

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe

"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\\sign.exe"

C:\Windows\system32\schtasks.exe

"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f

C:\Users\Admin\AppData\Roaming\SubDir\Client.exe

"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"

C:\Windows\system32\schtasks.exe

"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 sign.deitie.asia udp
CN 62.234.45.248:443 sign.deitie.asia tcp
US 8.8.8.8:53 mx5.deitie.asia udp
CN 114.116.244.244:4495 mx5.deitie.asia tcp
CN 114.116.244.244:4495 mx5.deitie.asia tcp
CN 114.116.244.244:4495 mx5.deitie.asia tcp
CN 114.116.244.244:4495 mx5.deitie.asia tcp
CN 114.116.244.244:4495 mx5.deitie.asia tcp
CN 114.116.244.244:4495 mx5.deitie.asia tcp

Files

\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe

MD5 7498d554976744dfbd271ba755c6c192
SHA1 ec733d01e776518e387d2f51d1a6559b81f03b1e
SHA256 44089202623b9671051aa5bba5e72f81f68ce818c3054dde57726aaa6dcb9ff7
SHA512 d4e987d0e6235001fac4ae3a634e8fe98c6830e26a6a6876fbc36262842688d3ec301cff75003d2af695cdfd357ac50919946695b7d5d3293ebcba97153e1030

memory/2900-5-0x00000000009E0000-0x0000000000D04000-memory.dmp

memory/2900-6-0x000007FEF6210000-0x000007FEF6BFC000-memory.dmp

memory/2900-7-0x000000001B280000-0x000000001B300000-memory.dmp

memory/2584-13-0x000007FEF6210000-0x000007FEF6BFC000-memory.dmp

memory/2584-14-0x0000000000360000-0x0000000000684000-memory.dmp

memory/2900-15-0x000007FEF6210000-0x000007FEF6BFC000-memory.dmp

memory/2584-16-0x000000001B300000-0x000000001B380000-memory.dmp

memory/2584-17-0x000007FEF6210000-0x000007FEF6BFC000-memory.dmp

memory/2584-18-0x000000001B300000-0x000000001B380000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-16 15:27

Reported

2024-04-16 15:29

Platform

win10v2004-20240226-en

Max time kernel

141s

Max time network

158s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-04-16_bc03059f709594662ca9f9f0e33bc7bd_icedid_xrat.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

Detects Windows executables referencing non-Windows User-Agents

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

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

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

Detects executables containing common artifacts observed in infostealers

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

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe C:\Users\Admin\AppData\Local\Temp\2024-04-16_bc03059f709594662ca9f9f0e33bc7bd_icedid_xrat.exe N/A

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SYSTEM32\schtasks.exe N/A
N/A N/A C:\Windows\SYSTEM32\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\2024-04-16_bc03059f709594662ca9f9f0e33bc7bd_icedid_xrat.exe

"C:\Users\Admin\AppData\Local\Temp\2024-04-16_bc03059f709594662ca9f9f0e33bc7bd_icedid_xrat.exe"

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe

"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\\sign.exe"

C:\Windows\SYSTEM32\schtasks.exe

"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f

C:\Users\Admin\AppData\Roaming\SubDir\Client.exe

"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"

C:\Windows\SYSTEM32\schtasks.exe

"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1340 --field-trial-handle=2236,i,5367110156796017614,12594004256180761011,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 sign.deitie.asia udp
US 20.231.121.79:80 tcp
CN 62.234.45.248:443 sign.deitie.asia tcp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 mx5.deitie.asia udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
CN 114.116.244.244:4495 mx5.deitie.asia tcp
US 8.8.8.8:53 udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 13.107.246.64:443 tcp
US 8.8.8.8:53 9.139.73.23.in-addr.arpa udp
CN 114.116.244.244:4495 mx5.deitie.asia tcp
CN 114.116.244.244:4495 mx5.deitie.asia tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
CN 114.116.244.244:4495 mx5.deitie.asia tcp
CN 114.116.244.244:4495 mx5.deitie.asia tcp
CN 114.116.244.244:4495 mx5.deitie.asia tcp
US 8.8.8.8:53 174.117.168.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe

MD5 7498d554976744dfbd271ba755c6c192
SHA1 ec733d01e776518e387d2f51d1a6559b81f03b1e
SHA256 44089202623b9671051aa5bba5e72f81f68ce818c3054dde57726aaa6dcb9ff7
SHA512 d4e987d0e6235001fac4ae3a634e8fe98c6830e26a6a6876fbc36262842688d3ec301cff75003d2af695cdfd357ac50919946695b7d5d3293ebcba97153e1030

memory/2532-4-0x0000000000D20000-0x0000000001044000-memory.dmp

memory/2532-5-0x00007FFBEE9A0000-0x00007FFBEF461000-memory.dmp

memory/2532-6-0x0000000001830000-0x0000000001840000-memory.dmp

memory/2532-13-0x00007FFBEE9A0000-0x00007FFBEF461000-memory.dmp

memory/2300-14-0x00007FFBEE9A0000-0x00007FFBEF461000-memory.dmp

memory/2300-15-0x000000001BD60000-0x000000001BD70000-memory.dmp

memory/2300-16-0x000000001BC80000-0x000000001BCD0000-memory.dmp

memory/2300-17-0x000000001C990000-0x000000001CA42000-memory.dmp

memory/2300-18-0x00007FFBEE9A0000-0x00007FFBEF461000-memory.dmp

memory/2300-19-0x000000001BD60000-0x000000001BD70000-memory.dmp