quasar | 1892623fff63caef48260a03265379b7bcd59acca9f434430275aabb21d30b22

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
14-11-2024 21:35

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General

Target

Client-built.exe
Size

3.1MB
MD5

f9f8be2116fea5c842ab4895a2e70d12
SHA1

5e1f7ab196b07c26dffeadfd3b0810cbba0dcbb7
SHA256

1892623fff63caef48260a03265379b7bcd59acca9f434430275aabb21d30b22
SHA512

6014c71c5897951c24042b31d8bb1f66f922dd67f6c8cf201036f007ab40b31023c941af6811f8e780234e557d4c74abccaa1107fd444665853a0010f7c84988
SSDEEP

49152:fv+I22SsaNYfdPBldt698dBcjHEBRJ6KbR3LoGdjLTHHB72eh2NT:fvz22SsaNYfdPBldt6+dBcjHEBRJ6k

Score

10^/10

quasar nigglet spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Nigglet

216.212.14.30:4782

Mutex

97ffcfba-f5de-45ae-9077-2e16c08140cd

Attributes

encryption_key
DEACA68FF61AC6C3B70166029A2DAC3B43CB3B82
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Quasar Client Startup
subdirectory
SubDir

Signatures

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

Quasar payload 2 IoCs

resource	yara_rule
behavioral2/memory/2820-1-0x0000000000C20000-0x0000000000F44000-memory.dmp	family_quasar
behavioral2/files/0x0007000000023c73-7.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
1920	Client.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2820	Client-built.exe
Token: SeDebugPrivilege	1920	Client.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1920	Client.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1920	Client.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1920	Client.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2820 wrote to memory of 1920	2820	Client-built.exe	87
PID 2820 wrote to memory of 1920	2820	Client-built.exe	87

C:\Users\Admin\AppData\Local\Temp\Client-built.exe
"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2820
- 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
  PID:1920

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
3.1MB

MD5
f9f8be2116fea5c842ab4895a2e70d12

SHA1
5e1f7ab196b07c26dffeadfd3b0810cbba0dcbb7

SHA256
1892623fff63caef48260a03265379b7bcd59acca9f434430275aabb21d30b22

SHA512
6014c71c5897951c24042b31d8bb1f66f922dd67f6c8cf201036f007ab40b31023c941af6811f8e780234e557d4c74abccaa1107fd444665853a0010f7c84988

Download Submit
memory/1920-9-0x00007FFE0B010000-0x00007FFE0BAD1000-memory.dmp

Filesize
10.8MB

Download
memory/1920-11-0x00007FFE0B010000-0x00007FFE0BAD1000-memory.dmp

Filesize
10.8MB

Download
memory/1920-13-0x000000001C2E0000-0x000000001C392000-memory.dmp

Filesize
712KB

Download
memory/1920-12-0x000000001C1D0000-0x000000001C220000-memory.dmp

Filesize
320KB

Download
memory/1920-14-0x00007FFE0B010000-0x00007FFE0BAD1000-memory.dmp

Filesize
10.8MB

Download
memory/2820-0-0x00007FFE0B013000-0x00007FFE0B015000-memory.dmp

Filesize
8KB

Download
memory/2820-1-0x0000000000C20000-0x0000000000F44000-memory.dmp

Filesize
3.1MB

Download
memory/2820-2-0x00007FFE0B010000-0x00007FFE0BAD1000-memory.dmp

Filesize
10.8MB

Download
memory/2820-10-0x00007FFE0B010000-0x00007FFE0BAD1000-memory.dmp

Filesize
10.8MB

Download