quasar | 677b56921e0ac313d88a476865bcdfbc59ae7b941a4f31ee98cff34b5b47c67a

General

Target

loli.exe
Size

3.1MB
MD5

fc04e19e18532ba031bd6e05fad571b1
SHA1

d124d44ac3afc724c4cfa84af182af347b430cfa
SHA256

677b56921e0ac313d88a476865bcdfbc59ae7b941a4f31ee98cff34b5b47c67a
SHA512

f0c11c3c79dbfaae2a7cd18335dfc2b55477b7b5cc7750f31f7817cbb71f405bb8a7a6b09d246e29e2b21f5568467241fb9fc7661ed207a914c0ed77c887e9dc
SSDEEP

49152:XvkG42pda6D+/PjlLOlg6yQipVlZyg+vEPTHHB72eh2NT:XvP42pda6D+/PjlLOlZyQipVlZR

Score

10^/10

quasar slave spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Slave

C2

manufacturer-iran.gl.at.ply.gg:46957

manufacturer-iran.gl.at.ply.gg:5047

Mutex

261b229e-a9e0-46eb-b59b-76313ea213fe

Attributes

encryption_key
F7ACA224CAA318E1652BB3825C87CAD85F986692
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Update
subdirectory
SubDir

Signatures

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

Quasar payload 3 IoCs

resource	yara_rule
behavioral1/memory/2468-1-0x00000000009C0000-0x0000000000CDA000-memory.dmp	family_quasar
behavioral1/files/0x002b000000018cf2-6.dat	family_quasar
behavioral1/memory/2208-10-0x0000000000900000-0x0000000000C1A000-memory.dmp	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
2208	Client.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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
236	schtasks.exe
2688	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2468	loli.exe
Token: SeDebugPrivilege	2208	Client.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2208	Client.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2208	Client.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2208	Client.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2468 wrote to memory of 236	2468	loli.exe	29
PID 2468 wrote to memory of 236	2468	loli.exe	29
PID 2468 wrote to memory of 236	2468	loli.exe	29
PID 2468 wrote to memory of 2208	2468	loli.exe	31
PID 2468 wrote to memory of 2208	2468	loli.exe	31
PID 2468 wrote to memory of 2208	2468	loli.exe	31
PID 2208 wrote to memory of 2688	2208	Client.exe	32
PID 2208 wrote to memory of 2688	2208	Client.exe	32
PID 2208 wrote to memory of 2688	2208	Client.exe	32

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\loli.exe
"C:\Users\Admin\AppData\Local\Temp\loli.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2468
- C:\Windows\system32\schtasks.exe
  "schtasks" /create /tn "Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:236
- C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2208
- - C:\Windows\system32\schtasks.exe
    "schtasks" /create /tn "Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2688

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

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
3.1MB

MD5
fc04e19e18532ba031bd6e05fad571b1

SHA1
d124d44ac3afc724c4cfa84af182af347b430cfa

SHA256
677b56921e0ac313d88a476865bcdfbc59ae7b941a4f31ee98cff34b5b47c67a

SHA512
f0c11c3c79dbfaae2a7cd18335dfc2b55477b7b5cc7750f31f7817cbb71f405bb8a7a6b09d246e29e2b21f5568467241fb9fc7661ed207a914c0ed77c887e9dc

Download Submit
memory/2208-8-0x000007FEF5DC0000-0x000007FEF67AC000-memory.dmp

Filesize
9.9MB

Download
memory/2208-10-0x0000000000900000-0x0000000000C1A000-memory.dmp

Filesize
3.1MB

Download
memory/2208-11-0x000007FEF5DC0000-0x000007FEF67AC000-memory.dmp

Filesize
9.9MB

Download
memory/2208-12-0x000007FEF5DC0000-0x000007FEF67AC000-memory.dmp

Filesize
9.9MB

Download
memory/2468-0-0x000007FEF5DC3000-0x000007FEF5DC4000-memory.dmp

Filesize
4KB

Download
memory/2468-1-0x00000000009C0000-0x0000000000CDA000-memory.dmp

Filesize
3.1MB

Download
memory/2468-2-0x000007FEF5DC0000-0x000007FEF67AC000-memory.dmp

Filesize
9.9MB

Download
memory/2468-9-0x000007FEF5DC0000-0x000007FEF67AC000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads