quasar | 6cfb5f6edf3e71772ecc51e4c140ca8affca2a8b1e14f9ea2a29d5d8b8b804d4

General

Target

ixeeno.exe
Size

1.5MB
MD5

5c21bfbaee6da7b7d31e71ec5c8e9544
SHA1

786a726fee0d5650c89bada327b7cb8189317d59
SHA256

6cfb5f6edf3e71772ecc51e4c140ca8affca2a8b1e14f9ea2a29d5d8b8b804d4
SHA512

ee97eda01da8d6515d0583ba1d31abd3de1f992ddbe30dd9ec8a1c55e8033d02d4599ec56388d1f90032231c81cf5122228faea72d80fab249abe1f998967377
SSDEEP

24576:9lRNJAhU6S2HIPbcNE0KKzaOwIRxl2SVcE3bgKFLyrvPvjMP:/DKEwKKzwipVcab9Lyr

Score

10^/10

quasar spyware trojan

Malware Config

Signatures

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

Quasar payload 3 IoCs

resource	yara_rule
behavioral1/memory/3532-1-0x0000021DDE300000-0x0000021DDE48A000-memory.dmp	family_quasar
behavioral1/memory/3532-2-0x0000021DDE8D0000-0x0000021DDE8EA000-memory.dmp	family_quasar
behavioral1/files/0x001b00000002af36-7.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
1000	svchost.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\SubDir\svchost.exe	svchost.exe
File opened for modification	C:\Windows\system32\SubDir	svchost.exe
File created	C:\Windows\system32\SubDir\svchost.exe	ixeeno.exe
File opened for modification	C:\Windows\system32\SubDir\svchost.exe	ixeeno.exe
File opened for modification	C:\Windows\system32\SubDir	ixeeno.exe

Modifies system certificate store 2 TTPs 2 IoCs

defense_evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	svchost.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
5032	schtasks.exe
2476	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1000	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3532	ixeeno.exe
Token: SeDebugPrivilege	1000	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1000	svchost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3532 wrote to memory of 5032	3532	ixeeno.exe	82
PID 3532 wrote to memory of 5032	3532	ixeeno.exe	82
PID 3532 wrote to memory of 1000	3532	ixeeno.exe	84
PID 3532 wrote to memory of 1000	3532	ixeeno.exe	84
PID 1000 wrote to memory of 2476	1000	svchost.exe	85
PID 1000 wrote to memory of 2476	1000	svchost.exe	85

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\ixeeno.exe
"C:\Users\Admin\AppData\Local\Temp\ixeeno.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3532
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "Windows Repair Tool" /sc ONLOGON /tr "C:\Windows\system32\SubDir\svchost.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:5032
- C:\Windows\system32\SubDir\svchost.exe
  "C:\Windows\system32\SubDir\svchost.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Modifies system certificate store
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1000
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "Windows Repair Tool" /sc ONLOGON /tr "C:\Windows\system32\SubDir\svchost.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2476

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\System32\SubDir\svchost.exe

Filesize
1.5MB

MD5
5c21bfbaee6da7b7d31e71ec5c8e9544

SHA1
786a726fee0d5650c89bada327b7cb8189317d59

SHA256
6cfb5f6edf3e71772ecc51e4c140ca8affca2a8b1e14f9ea2a29d5d8b8b804d4

SHA512
ee97eda01da8d6515d0583ba1d31abd3de1f992ddbe30dd9ec8a1c55e8033d02d4599ec56388d1f90032231c81cf5122228faea72d80fab249abe1f998967377

Download Submit
memory/1000-14-0x000001A9D0400000-0x000001A9D04B2000-memory.dmp

Filesize
712KB

Download
memory/1000-11-0x00007FFB52330000-0x00007FFB52DF2000-memory.dmp

Filesize
10.8MB

Download
memory/1000-12-0x000001A9D00E0000-0x000001A9D00F2000-memory.dmp

Filesize
72KB

Download
memory/1000-13-0x000001A9D0090000-0x000001A9D00E0000-memory.dmp

Filesize
320KB

Download
memory/1000-15-0x000001A9D0040000-0x000001A9D008E000-memory.dmp

Filesize
312KB

Download
memory/1000-18-0x000001A9D0180000-0x000001A9D0192000-memory.dmp

Filesize
72KB

Download
memory/1000-19-0x000001A9D04C0000-0x000001A9D04FC000-memory.dmp

Filesize
240KB

Download
memory/1000-20-0x00007FFB52330000-0x00007FFB52DF2000-memory.dmp

Filesize
10.8MB

Download
memory/3532-2-0x0000021DDE8D0000-0x0000021DDE8EA000-memory.dmp

Filesize
104KB

Download
memory/3532-3-0x00007FFB52330000-0x00007FFB52DF2000-memory.dmp

Filesize
10.8MB

Download
memory/3532-1-0x0000021DDE300000-0x0000021DDE48A000-memory.dmp

Filesize
1.5MB

Download
memory/3532-10-0x00007FFB52330000-0x00007FFB52DF2000-memory.dmp

Filesize
10.8MB

Download
memory/3532-0-0x00007FFB52333000-0x00007FFB52335000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads