quasar | d8818dee0fc5da34e49f25a8f416b86b6635443d45bdca1c54d23fa766de3727

General

Target

d8818dee0fc5da34e49f25a8f416b86b6635443d45bdca1c54d23fa766de3727.exe
Size

523KB
MD5

fe5b07b7c90a3adec3899ad65ee4e038
SHA1

9103e80c409e918f3a55f0eb819e83415f8a6388
SHA256

d8818dee0fc5da34e49f25a8f416b86b6635443d45bdca1c54d23fa766de3727
SHA512

d6fbceb80e1f6bfdbeb72d5b98e7dbfd8485e594fd97aa1c286d208911f2b93b700f5b7efb96d5049baf5a7fcc449219a185ce719dee7b60ac504f604b25a45a
SSDEEP

12288:Yh1Lk70TnvjcKcVob1y3O/Yj5QmRP8Fb5Ovm0BK2zScujuMt:Ek70TrcKkoE3O/YtZV8Fcv5BKwCuMt

Score

10^/10

quasar discovery spyware trojan

Malware Config

Signatures

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

Executes dropped EXE 1 IoCs

Processes:

dcuph.exe

pid	Process
3532	dcuph.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.

Processes:

flow	ioc
13	ip-api.com

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

dcuph.exeschtasks.exed8818dee0fc5da34e49f25a8f416b86b6635443d45bdca1c54d23fa766de3727.exeschtasks.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dcuph.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d8818dee0fc5da34e49f25a8f416b86b6635443d45bdca1c54d23fa766de3727.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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

Processes:

schtasks.exeschtasks.exe

pid	Process
2952	schtasks.exe
2240	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

d8818dee0fc5da34e49f25a8f416b86b6635443d45bdca1c54d23fa766de3727.exedcuph.exe

description	pid	Process
Token: SeDebugPrivilege	3368	d8818dee0fc5da34e49f25a8f416b86b6635443d45bdca1c54d23fa766de3727.exe
Token: SeDebugPrivilege	3532	dcuph.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

dcuph.exe

pid	Process
3532	dcuph.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

d8818dee0fc5da34e49f25a8f416b86b6635443d45bdca1c54d23fa766de3727.exedcuph.exe

description	pid	Process	procid_target
PID 3368 wrote to memory of 2952	3368	d8818dee0fc5da34e49f25a8f416b86b6635443d45bdca1c54d23fa766de3727.exe	87
PID 3368 wrote to memory of 2952	3368	d8818dee0fc5da34e49f25a8f416b86b6635443d45bdca1c54d23fa766de3727.exe	87
PID 3368 wrote to memory of 2952	3368	d8818dee0fc5da34e49f25a8f416b86b6635443d45bdca1c54d23fa766de3727.exe	87
PID 3368 wrote to memory of 3532	3368	d8818dee0fc5da34e49f25a8f416b86b6635443d45bdca1c54d23fa766de3727.exe	89
PID 3368 wrote to memory of 3532	3368	d8818dee0fc5da34e49f25a8f416b86b6635443d45bdca1c54d23fa766de3727.exe	89
PID 3368 wrote to memory of 3532	3368	d8818dee0fc5da34e49f25a8f416b86b6635443d45bdca1c54d23fa766de3727.exe	89
PID 3532 wrote to memory of 2240	3532	dcuph.exe	92
PID 3532 wrote to memory of 2240	3532	dcuph.exe	92
PID 3532 wrote to memory of 2240	3532	dcuph.exe	92

C:\Users\Admin\AppData\Local\Temp\d8818dee0fc5da34e49f25a8f416b86b6635443d45bdca1c54d23fa766de3727.exe
"C:\Users\Admin\AppData\Local\Temp\d8818dee0fc5da34e49f25a8f416b86b6635443d45bdca1c54d23fa766de3727.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3368
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks" /create /tn "dcuph" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\d8818dee0fc5da34e49f25a8f416b86b6635443d45bdca1c54d23fa766de3727.exe" /rl HIGHEST /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2952
- C:\Users\Admin\AppData\Roaming\sysnfkn\dcuph.exe
  "C:\Users\Admin\AppData\Roaming\sysnfkn\dcuph.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3532
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "dcuph" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\sysnfkn\dcuph.exe" /rl HIGHEST /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2240

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

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\sysnfkn\dcuph.exe

Filesize
523KB

MD5
fe5b07b7c90a3adec3899ad65ee4e038

SHA1
9103e80c409e918f3a55f0eb819e83415f8a6388

SHA256
d8818dee0fc5da34e49f25a8f416b86b6635443d45bdca1c54d23fa766de3727

SHA512
d6fbceb80e1f6bfdbeb72d5b98e7dbfd8485e594fd97aa1c286d208911f2b93b700f5b7efb96d5049baf5a7fcc449219a185ce719dee7b60ac504f604b25a45a

Download Submit
memory/3368-10-0x0000000005C40000-0x0000000005C52000-memory.dmp

Filesize
72KB

Download
memory/3368-0-0x000000007524E000-0x000000007524F000-memory.dmp

Filesize
4KB

Download
memory/3368-2-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/3368-4-0x00000000051A0000-0x0000000005268000-memory.dmp

Filesize
800KB

Download
memory/3368-5-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/3368-6-0x0000000005270000-0x0000000005302000-memory.dmp

Filesize
584KB

Download
memory/3368-7-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/3368-11-0x0000000006070000-0x00000000060AC000-memory.dmp

Filesize
240KB

Download
memory/3368-9-0x0000000005410000-0x0000000005476000-memory.dmp

Filesize
408KB

Download
memory/3368-3-0x0000000004BF0000-0x0000000005194000-memory.dmp

Filesize
5.6MB

Download
memory/3368-8-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/3368-1-0x0000000004B20000-0x0000000004BEA000-memory.dmp

Filesize
808KB

Download
memory/3368-17-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/3532-22-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/3532-19-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/3532-18-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/3532-21-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/3532-20-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/3532-25-0x00000000062F0000-0x00000000062FA000-memory.dmp

Filesize
40KB

Download
memory/3532-26-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads