quasar | 0e75d20dc4bbc6e47d8af2a28ff28efac659bb5b6d1ba69a904ac3d338e0e2cb

Analysis

max time kernel
129s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
07/02/2023, 00:51

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General

Target

Cold War Tool Free by R7XZ2.exe
Size

664KB
MD5

28b47c7dd2743e312aa5665d2237bbaf
SHA1

8c0b0bd93738f6d3c7299073fa046a9923c43d94
SHA256

0e75d20dc4bbc6e47d8af2a28ff28efac659bb5b6d1ba69a904ac3d338e0e2cb
SHA512

75766bfcf5b90f0ab6c755e6d531377e73838aba956d1597e10d451172ba4df1243a26bc95b996e55f8b013c862e21e06eb48dfa1f00dce131e6e296f3a101f8
SSDEEP

6144:yTEgdc0YXXbZvdo6EsRwdfuniFBlh/6KnFwQHocE8cb8F9bObLGnJ2cTR3j:yTEgdfY9do6Wu6hFwMHMn+4cdj

Score

10^/10

quasar coldwar tool by fxc11 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

ColdWar Tool by FXC11

91.121.214.19:1605

Mutex

ee2a25d7-e4a9-452c-9a5f-a26bb677dfa1

Attributes

encryption_key
F9F475501C6D2B1102A497EB1C3D52C90B8E007E
install_name
QuickPump.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Windows Defender Real Time Protection
subdirectory
SubDir

Signatures

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

Quasar payload 3 IoCs

resource	yara_rule
behavioral2/memory/4032-132-0x00000000002A0000-0x000000000034C000-memory.dmp	family_quasar
behavioral2/files/0x0001000000022e1f-136.dat	family_quasar
behavioral2/files/0x0001000000022e1f-137.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
4636	QuickPump.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\SubDir\QuickPump.exe	Cold War Tool Free by R7XZ2.exe
File opened for modification	C:\Program Files\SubDir\QuickPump.exe	QuickPump.exe
File created	C:\Program Files\SubDir\QuickPump.exe	Cold War Tool Free by R7XZ2.exe

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

T1053

pid	Process
4148	schtasks.exe
3532	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4032	Cold War Tool Free by R7XZ2.exe
Token: SeDebugPrivilege	4636	QuickPump.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4636	QuickPump.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4032 wrote to memory of 4148	4032	Cold War Tool Free by R7XZ2.exe	83
PID 4032 wrote to memory of 4148	4032	Cold War Tool Free by R7XZ2.exe	83
PID 4032 wrote to memory of 4636	4032	Cold War Tool Free by R7XZ2.exe	84
PID 4032 wrote to memory of 4636	4032	Cold War Tool Free by R7XZ2.exe	84
PID 4636 wrote to memory of 3532	4636	QuickPump.exe	85
PID 4636 wrote to memory of 3532	4636	QuickPump.exe	85

C:\Users\Admin\AppData\Local\Temp\Cold War Tool Free by R7XZ2.exe
"C:\Users\Admin\AppData\Local\Temp\Cold War Tool Free by R7XZ2.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4032
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "Windows Defender Real Time Protection" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\Cold War Tool Free by R7XZ2.exe" /rl HIGHEST /f
  2⤵
  - Creates scheduled task(s)
  PID:4148
- C:\Program Files\SubDir\QuickPump.exe
  "C:\Program Files\SubDir\QuickPump.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4636
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "Windows Defender Real Time Protection" /sc ONLOGON /tr "C:\Program Files\SubDir\QuickPump.exe" /rl HIGHEST /f
    3⤵
    - Creates scheduled task(s)
    PID:3532

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files\SubDir\QuickPump.exe

Filesize
664KB

MD5
28b47c7dd2743e312aa5665d2237bbaf

SHA1
8c0b0bd93738f6d3c7299073fa046a9923c43d94

SHA256
0e75d20dc4bbc6e47d8af2a28ff28efac659bb5b6d1ba69a904ac3d338e0e2cb

SHA512
75766bfcf5b90f0ab6c755e6d531377e73838aba956d1597e10d451172ba4df1243a26bc95b996e55f8b013c862e21e06eb48dfa1f00dce131e6e296f3a101f8

Download Submit
C:\Program Files\SubDir\QuickPump.exe

Filesize
664KB

MD5
28b47c7dd2743e312aa5665d2237bbaf

SHA1
8c0b0bd93738f6d3c7299073fa046a9923c43d94

SHA256
0e75d20dc4bbc6e47d8af2a28ff28efac659bb5b6d1ba69a904ac3d338e0e2cb

SHA512
75766bfcf5b90f0ab6c755e6d531377e73838aba956d1597e10d451172ba4df1243a26bc95b996e55f8b013c862e21e06eb48dfa1f00dce131e6e296f3a101f8

Download Submit
memory/4032-132-0x00000000002A0000-0x000000000034C000-memory.dmp

Filesize
688KB

Download
memory/4032-133-0x00007FF834C30000-0x00007FF8356F1000-memory.dmp

Filesize
10.8MB

Download
memory/4032-138-0x00007FF834C30000-0x00007FF8356F1000-memory.dmp

Filesize
10.8MB

Download
memory/4636-139-0x00007FF834C30000-0x00007FF8356F1000-memory.dmp

Filesize
10.8MB

Download
memory/4636-141-0x000000001C380000-0x000000001C3D0000-memory.dmp

Filesize
320KB

Download
memory/4636-142-0x000000001C490000-0x000000001C542000-memory.dmp

Filesize
712KB

Download
memory/4636-143-0x00007FF834C30000-0x00007FF8356F1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads