Malware Analysis Report

2024-10-23 21:29

Sample ID 240411-aqbhaafc88
Target 2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat
SHA256 071fed2284f56078a1f541e8f9915eb908548bef0548d8672e3237972423cbe9
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

071fed2284f56078a1f541e8f9915eb908548bef0548d8672e3237972423cbe9

Threat Level: Known bad

The file 2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat was found to be: Known bad.

Malicious Activity Summary

quasar office04 spyware trojan

Quasar RAT

Detects Windows executables referencing non-Windows User-Agents

Quasar family

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

Detects executables containing common artifacts observed in infostealers

Quasar payload

Detects executables containing common artifacts observed in infostealers

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

Detects Windows executables referencing non-Windows User-Agents

Executes dropped EXE

Drops startup file

Loads dropped DLL

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Creates scheduled task(s)

Suspicious use of SetWindowsHookEx

Uses Task Scheduler COM API

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-11 00:24

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

2024-04-11 00:24

Reported

2024-04-11 00:27

Platform

win7-20240220-en

Max time kernel

126s

Max time network

136s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_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\2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_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\2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_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 2860 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat.exe C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe
PID 2860 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat.exe C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe
PID 2860 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat.exe C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe
PID 2860 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat.exe C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe
PID 2924 wrote to memory of 2256 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe C:\Windows\system32\schtasks.exe
PID 2924 wrote to memory of 2256 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe C:\Windows\system32\schtasks.exe
PID 2924 wrote to memory of 2256 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe C:\Windows\system32\schtasks.exe
PID 2924 wrote to memory of 2628 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
PID 2924 wrote to memory of 2628 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
PID 2924 wrote to memory of 2628 N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
PID 2628 wrote to memory of 2516 N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe C:\Windows\system32\schtasks.exe
PID 2628 wrote to memory of 2516 N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe C:\Windows\system32\schtasks.exe
PID 2628 wrote to memory of 2516 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\2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat.exe

"C:\Users\Admin\AppData\Local\Temp\2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_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/2924-5-0x0000000000970000-0x0000000000C94000-memory.dmp

memory/2924-6-0x000007FEF5910000-0x000007FEF62FC000-memory.dmp

memory/2924-7-0x000000001B360000-0x000000001B3E0000-memory.dmp

memory/2924-14-0x000007FEF5910000-0x000007FEF62FC000-memory.dmp

memory/2628-13-0x0000000000290000-0x00000000005B4000-memory.dmp

memory/2628-15-0x000007FEF5910000-0x000007FEF62FC000-memory.dmp

memory/2628-16-0x0000000002520000-0x00000000025A0000-memory.dmp

memory/2628-17-0x000007FEF5910000-0x000007FEF62FC000-memory.dmp

memory/2628-18-0x0000000002520000-0x00000000025A0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-11 00:24

Reported

2024-04-11 00:27

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

142s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_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\2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_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\2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat.exe

"C:\Users\Admin\AppData\Local\Temp\2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_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 28.118.140.52.in-addr.arpa udp
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
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
CN 114.116.244.244:4495 mx5.deitie.asia tcp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
CN 114.116.244.244:4495 mx5.deitie.asia tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 140.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 159.113.53.23.in-addr.arpa udp
CN 114.116.244.244:4495 mx5.deitie.asia tcp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
CN 114.116.244.244:4495 mx5.deitie.asia tcp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.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 tcp

Files

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

MD5 7498d554976744dfbd271ba755c6c192
SHA1 ec733d01e776518e387d2f51d1a6559b81f03b1e
SHA256 44089202623b9671051aa5bba5e72f81f68ce818c3054dde57726aaa6dcb9ff7
SHA512 d4e987d0e6235001fac4ae3a634e8fe98c6830e26a6a6876fbc36262842688d3ec301cff75003d2af695cdfd357ac50919946695b7d5d3293ebcba97153e1030

memory/2656-4-0x0000000000620000-0x0000000000944000-memory.dmp

memory/2656-5-0x00007FF99C960000-0x00007FF99D421000-memory.dmp

memory/2656-6-0x0000000001210000-0x0000000001220000-memory.dmp

memory/3424-14-0x000000001BC10000-0x000000001BC20000-memory.dmp

memory/3424-13-0x00007FF99C960000-0x00007FF99D421000-memory.dmp

memory/3424-15-0x0000000002F00000-0x0000000002F50000-memory.dmp

memory/3424-16-0x000000001DAA0000-0x000000001DB52000-memory.dmp

memory/2656-17-0x00007FF99C960000-0x00007FF99D421000-memory.dmp

memory/3424-18-0x00007FF99C960000-0x00007FF99D421000-memory.dmp