quasar | 92dde00e5a5426b5a20e9e9e87ea29c66c6ab7cd467cbe9a90bf971f2d21a6a7

General

Target

intelservice.exe
Size

348KB
MD5

2f890b7ca2e7b4b24bb534c28e54d7cf
SHA1

e8d9f966c18f10f1eff01478d41dabacd0300da5
SHA256

92dde00e5a5426b5a20e9e9e87ea29c66c6ab7cd467cbe9a90bf971f2d21a6a7
SHA512

666670b52d4113a4909cc27fb38b851c0066a74aa2bfe67bb906a0c1fffedffaf26bd8f4aa0371adea3c9e51917c1de27b3cde2ed05db56aad16f476a955f841
SSDEEP

6144:60qQ4i1FFiEKDvLJavf52ibVcbVKglEb0ouAYyj9jZV293DIa:rpliTVOf56WBYylc3DIa

Score

10^/10

quasar hackee spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

hackee

C2

20.205.140.63:1024

Mutex

QSR_MUTEX_5Tlo4RbwyDWBOOlMEb

Attributes

encryption_key
zFGtr8G9lnuwN5OHbzbL
install_name
intelservice.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Intel CPU Service
subdirectory
intelcpu

Signatures

Quasar RAT
Quasar is an open source Remote Access Tool.
trojan spyware quasar

Quasar payload 5 IoCs

resource	yara_rule
behavioral1/memory/1384-0-0x0000000001270000-0x00000000012CE000-memory.dmp	family_quasar
behavioral1/files/0x000d000000012252-5.dat	family_quasar
behavioral1/files/0x000d000000012252-8.dat	family_quasar
behavioral1/files/0x000d000000012252-9.dat	family_quasar
behavioral1/memory/2728-10-0x0000000000F20000-0x0000000000F7E000-memory.dmp	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
2728	intelservice.exe

Loads dropped DLL 1 IoCs

pid	Process
1384	intelservice.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
2	ip-api.com

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
2616	schtasks.exe
2316	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1384	intelservice.exe
Token: SeDebugPrivilege	2728	intelservice.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2728	intelservice.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1384 wrote to memory of 2316	1384	intelservice.exe	29
PID 1384 wrote to memory of 2316	1384	intelservice.exe	29
PID 1384 wrote to memory of 2316	1384	intelservice.exe	29
PID 1384 wrote to memory of 2316	1384	intelservice.exe	29
PID 1384 wrote to memory of 2728	1384	intelservice.exe	31
PID 1384 wrote to memory of 2728	1384	intelservice.exe	31
PID 1384 wrote to memory of 2728	1384	intelservice.exe	31
PID 1384 wrote to memory of 2728	1384	intelservice.exe	31
PID 2728 wrote to memory of 2616	2728	intelservice.exe	32
PID 2728 wrote to memory of 2616	2728	intelservice.exe	32
PID 2728 wrote to memory of 2616	2728	intelservice.exe	32
PID 2728 wrote to memory of 2616	2728	intelservice.exe	32

C:\Users\Admin\AppData\Local\Temp\intelservice.exe
"C:\Users\Admin\AppData\Local\Temp\intelservice.exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1384
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks" /create /tn "Intel CPU Service" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\intelservice.exe" /rl HIGHEST /f
  2⤵
  - Creates scheduled task(s)
  PID:2316
- C:\Users\Admin\AppData\Roaming\intelcpu\intelservice.exe
  "C:\Users\Admin\AppData\Roaming\intelcpu\intelservice.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2728
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "Intel CPU Service" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\intelcpu\intelservice.exe" /rl HIGHEST /f
    3⤵
    - Creates scheduled task(s)
    PID:2616

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\intelcpu\intelservice.exe

Filesize
348KB

MD5
2f890b7ca2e7b4b24bb534c28e54d7cf

SHA1
e8d9f966c18f10f1eff01478d41dabacd0300da5

SHA256
92dde00e5a5426b5a20e9e9e87ea29c66c6ab7cd467cbe9a90bf971f2d21a6a7

SHA512
666670b52d4113a4909cc27fb38b851c0066a74aa2bfe67bb906a0c1fffedffaf26bd8f4aa0371adea3c9e51917c1de27b3cde2ed05db56aad16f476a955f841

Download Submit
C:\Users\Admin\AppData\Roaming\intelcpu\intelservice.exe

Filesize
348KB

MD5
2f890b7ca2e7b4b24bb534c28e54d7cf

SHA1
e8d9f966c18f10f1eff01478d41dabacd0300da5

SHA256
92dde00e5a5426b5a20e9e9e87ea29c66c6ab7cd467cbe9a90bf971f2d21a6a7

SHA512
666670b52d4113a4909cc27fb38b851c0066a74aa2bfe67bb906a0c1fffedffaf26bd8f4aa0371adea3c9e51917c1de27b3cde2ed05db56aad16f476a955f841

Download Submit
\Users\Admin\AppData\Roaming\intelcpu\intelservice.exe

Filesize
348KB

MD5
2f890b7ca2e7b4b24bb534c28e54d7cf

SHA1
e8d9f966c18f10f1eff01478d41dabacd0300da5

SHA256
92dde00e5a5426b5a20e9e9e87ea29c66c6ab7cd467cbe9a90bf971f2d21a6a7

SHA512
666670b52d4113a4909cc27fb38b851c0066a74aa2bfe67bb906a0c1fffedffaf26bd8f4aa0371adea3c9e51917c1de27b3cde2ed05db56aad16f476a955f841

Download Submit
memory/1384-0-0x0000000001270000-0x00000000012CE000-memory.dmp

Filesize
376KB

Download
memory/1384-1-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/1384-2-0x0000000000600000-0x0000000000640000-memory.dmp

Filesize
256KB

Download
memory/1384-13-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-11-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-10-0x0000000000F20000-0x0000000000F7E000-memory.dmp

Filesize
376KB

Download
memory/2728-12-0x0000000004970000-0x00000000049B0000-memory.dmp

Filesize
256KB

Download
memory/2728-15-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-16-0x0000000004970000-0x00000000049B0000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads