quasar | 34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e

Analysis

max time kernel
4294216s
max time network
162s
platform
windows7_x64
resource
win7-20220310-en
submitted
14-04-2022 13:35

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe
Size

1.2MB
MD5

a7850e7c98d51d8143fac5ea73a8b7c1
SHA1

d983449e7e47fd7abd80ebcd7e00941bcfe59c50
SHA256

34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e
SHA512

a8c91d8f41e57cb3e6e5247a17a4e9e103d64f7b53a4e2b8da7e9d1ee7c4578f9c191fd25a9f422d175034e59492535ee8d19045a1ac2ec836959527d23c48b9

Score

10^/10

quasar venomrat warzonerat shooter00hrs evasion infostealer persistence rat rootkit spyware stealer trojan

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

shooter00hrs

185.219.134.245:4782

Mutex

VNM_MUTEX_ZFDh9LaTbTmwqFwo3L

Attributes

encryption_key
wGYjrQIx5abERLvzC8Zu
install_name
windows chrome.exe
log_directory
Logs
reconnect_delay
3000
startup_key
chrome Startup
subdirectory
SubDir

Extracted

Family

warzonerat

185.219.134.245:5200

Signatures

Contains code to disable Windows Defender 8 IoCs

A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

resource	yara_rule
behavioral1/files/0x000a0000000122f4-60.dat	disable_win_def
behavioral1/files/0x000a0000000122f4-63.dat	disable_win_def
behavioral1/files/0x000a0000000122f4-61.dat	disable_win_def
behavioral1/memory/2032-64-0x0000000000AD0000-0x0000000000B5C000-memory.dmp	disable_win_def
behavioral1/files/0x00070000000126bd-82.dat	disable_win_def
behavioral1/files/0x00070000000126bd-84.dat	disable_win_def
behavioral1/files/0x00070000000126bd-85.dat	disable_win_def
behavioral1/memory/1236-86-0x00000000008A0000-0x000000000092C000-memory.dmp	disable_win_def

Modifies Windows Defender Real-time Protection settings 3 TTPs
evasion trojan

Modify Registry
T1112

Modify Existing Service
T1031

Disabling Security Tools
T1089

Quasar Payload 8 IoCs

resource	yara_rule
behavioral1/files/0x000a0000000122f4-60.dat	family_quasar
behavioral1/files/0x000a0000000122f4-63.dat	family_quasar
behavioral1/files/0x000a0000000122f4-61.dat	family_quasar
behavioral1/memory/2032-64-0x0000000000AD0000-0x0000000000B5C000-memory.dmp	family_quasar
behavioral1/files/0x00070000000126bd-82.dat	family_quasar
behavioral1/files/0x00070000000126bd-84.dat	family_quasar
behavioral1/files/0x00070000000126bd-85.dat	family_quasar
behavioral1/memory/1236-86-0x00000000008A0000-0x000000000092C000-memory.dmp	family_quasar

Quasar RAT
Quasar is an open source Remote Access Tool.
trojan spyware quasar
VenomRAT
VenomRAT is a modified version of QuasarRAT with some added features, such as rootkit and stealer capabilites.
rat rootkit stealer venomrat
WarzoneRat, AveMaria
WarzoneRat is a native RAT developed in C++ with multiple plugins sold as a MaaS.
rat infostealer warzonerat

Warzone RAT Payload 9 IoCs

rat

resource	yara_rule
behavioral1/memory/1468-70-0x0000000000400000-0x0000000000554000-memory.dmp	warzonerat
behavioral1/memory/1468-71-0x0000000000400000-0x0000000000554000-memory.dmp	warzonerat
behavioral1/memory/1468-73-0x0000000000400000-0x0000000000554000-memory.dmp	warzonerat
behavioral1/memory/1468-74-0x0000000000400000-0x0000000000554000-memory.dmp	warzonerat
behavioral1/memory/1468-76-0x0000000000405CE2-mapping.dmp	warzonerat
behavioral1/memory/1468-75-0x0000000000400000-0x0000000000554000-memory.dmp	warzonerat
behavioral1/memory/1468-79-0x0000000000400000-0x0000000000554000-memory.dmp	warzonerat
behavioral1/memory/1468-80-0x0000000000400000-0x0000000000554000-memory.dmp	warzonerat
behavioral1/memory/620-91-0x00000000022F0000-0x0000000002F3A000-memory.dmp	warzonerat

Executes dropped EXE 2 IoCs

pid	Process
2032	$77-Venom.exe
1236	windows chrome.exe

Loads dropped DLL 2 IoCs

pid	Process
1880	WScript.exe
2032	$77-Venom.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	$77-Venom.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features	$77-Venom.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Images = "C:\\Users\\Admin\\AppData\\Local\\Temp\\34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe"	34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2932610838-281738825-1127631353-1000\Software\Microsoft\Windows\CurrentVersion\Run\chrome Startup = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\$77-Venom.exe\""	$77-Venom.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2932610838-281738825-1127631353-1000\Software\Microsoft\Windows\CurrentVersion\Run\vlc = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\VideoLAN\\vlc.exe\""	34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.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.

flow	ioc
4	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1032 set thread context of 1468	1032	34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe	31

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

System Information Discovery
T1082

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
1544	schtasks.exe
1228	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
620	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1032	34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe
Token: SeDebugPrivilege	2032	$77-Venom.exe
Token: SeDebugPrivilege	1236	windows chrome.exe
Token: SeDebugPrivilege	1236	windows chrome.exe
Token: SeDebugPrivilege	620	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1236	windows chrome.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1032 wrote to memory of 1880	1032	34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe	29
PID 1032 wrote to memory of 1880	1032	34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe	29
PID 1032 wrote to memory of 1880	1032	34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe	29
PID 1032 wrote to memory of 1880	1032	34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe	29
PID 1880 wrote to memory of 2032	1880	WScript.exe	30
PID 1880 wrote to memory of 2032	1880	WScript.exe	30
PID 1880 wrote to memory of 2032	1880	WScript.exe	30
PID 1880 wrote to memory of 2032	1880	WScript.exe	30
PID 1032 wrote to memory of 1468	1032	34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe	31
PID 1032 wrote to memory of 1468	1032	34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe	31
PID 1032 wrote to memory of 1468	1032	34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe	31
PID 1032 wrote to memory of 1468	1032	34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe	31
PID 1032 wrote to memory of 1468	1032	34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe	31
PID 1032 wrote to memory of 1468	1032	34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe	31
PID 1032 wrote to memory of 1468	1032	34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe	31
PID 1032 wrote to memory of 1468	1032	34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe	31
PID 1032 wrote to memory of 1468	1032	34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe	31
PID 1032 wrote to memory of 1468	1032	34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe	31
PID 1032 wrote to memory of 1468	1032	34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe	31
PID 1032 wrote to memory of 1468	1032	34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe	31
PID 2032 wrote to memory of 1544	2032	$77-Venom.exe	33
PID 2032 wrote to memory of 1544	2032	$77-Venom.exe	33
PID 2032 wrote to memory of 1544	2032	$77-Venom.exe	33
PID 2032 wrote to memory of 1544	2032	$77-Venom.exe	33
PID 2032 wrote to memory of 1236	2032	$77-Venom.exe	35
PID 2032 wrote to memory of 1236	2032	$77-Venom.exe	35
PID 2032 wrote to memory of 1236	2032	$77-Venom.exe	35
PID 2032 wrote to memory of 1236	2032	$77-Venom.exe	35
PID 2032 wrote to memory of 620	2032	$77-Venom.exe	36
PID 2032 wrote to memory of 620	2032	$77-Venom.exe	36
PID 2032 wrote to memory of 620	2032	$77-Venom.exe	36
PID 2032 wrote to memory of 620	2032	$77-Venom.exe	36
PID 1236 wrote to memory of 1228	1236	windows chrome.exe	38
PID 1236 wrote to memory of 1228	1236	windows chrome.exe	38
PID 1236 wrote to memory of 1228	1236	windows chrome.exe	38
PID 1236 wrote to memory of 1228	1236	windows chrome.exe	38

C:\Users\Admin\AppData\Local\Temp\34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe
"C:\Users\Admin\AppData\Local\Temp\34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1032
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Pxjdcddn.vbs"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1880
- - C:\Users\Admin\AppData\Local\Temp\$77-Venom.exe
    "C:\Users\Admin\AppData\Local\Temp\$77-Venom.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Windows security modification
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2032
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks" /create /tn "chrome Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\$77-Venom.exe" /rl HIGHEST /f
      4⤵
      Creates scheduled task(s)
      PID:1544
  - - C:\Users\Admin\AppData\Roaming\SubDir\windows chrome.exe
      "C:\Users\Admin\AppData\Roaming\SubDir\windows chrome.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:1236
    - - C:\Windows\SysWOW64\schtasks.exe
        
        "schtasks" /create /tn "chrome Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\windows chrome.exe" /rl HIGHEST /f
        5⤵
        Creates scheduled task(s)
        
        PID:1228
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" Get-MpPreference -verbose
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:620
- C:\Users\Admin\AppData\Local\Temp\34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe
  "C:\Users\Admin\AppData\Local\Temp\34e12b6ed242c02d15dca535ad869485e2ac55491e46181ce08ede26957bd94e.exe"
  2⤵
  - Adds Run key to start application
  PID:1468

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\$77-Venom.exe

Filesize
534KB

MD5
3702c2b44a1d4877f4d1187be6c33958

SHA1
4755c7d9fb0582f94b8feb44be9d3c70031a0f33

SHA256
295277e76cfe8b80f6a2a9db2c69fdd2b36b4866b35fdec4cd7d6c67faecceb6

SHA512
11d073f0a6120a3fc874fed5162810c780f52adfb21f8c9cf2720991c7ea6236a0bb5be28b40f35819c21db354dda52b818479104d50be9bd89b3d901c209aca

Download Submit
C:\Users\Admin\AppData\Local\Temp\$77-Venom.exe

Filesize
534KB

MD5
3702c2b44a1d4877f4d1187be6c33958

SHA1
4755c7d9fb0582f94b8feb44be9d3c70031a0f33

SHA256
295277e76cfe8b80f6a2a9db2c69fdd2b36b4866b35fdec4cd7d6c67faecceb6

SHA512
11d073f0a6120a3fc874fed5162810c780f52adfb21f8c9cf2720991c7ea6236a0bb5be28b40f35819c21db354dda52b818479104d50be9bd89b3d901c209aca

Download Submit
C:\Users\Admin\AppData\Local\Temp\Pxjdcddn.vbs

Filesize
97B

MD5
21cf56d4b0a76046820523108fb676e0

SHA1
9535221712c50c9a3fa7e06efe5e1efc016f715d

SHA256
2f931374cab0f3601d1698f4943f8e4f83cbfc3efb478bf518091ab23642dbc3

SHA512
5c2238aece0a82b63a541142dcee3527e3d1baad206d3fb7c3d226fd99c26c1c2d5d4113584be08118316fd5d78c3f7aca2f3d0e957c87f76b92615a24601cd5

Download Submit
C:\Users\Admin\AppData\Roaming\SubDir\windows chrome.exe

Filesize
534KB

MD5
3702c2b44a1d4877f4d1187be6c33958

SHA1
4755c7d9fb0582f94b8feb44be9d3c70031a0f33

SHA256
295277e76cfe8b80f6a2a9db2c69fdd2b36b4866b35fdec4cd7d6c67faecceb6

SHA512
11d073f0a6120a3fc874fed5162810c780f52adfb21f8c9cf2720991c7ea6236a0bb5be28b40f35819c21db354dda52b818479104d50be9bd89b3d901c209aca

Download Submit
C:\Users\Admin\AppData\Roaming\SubDir\windows chrome.exe

Filesize
534KB

MD5
3702c2b44a1d4877f4d1187be6c33958

SHA1
4755c7d9fb0582f94b8feb44be9d3c70031a0f33

SHA256
295277e76cfe8b80f6a2a9db2c69fdd2b36b4866b35fdec4cd7d6c67faecceb6

SHA512
11d073f0a6120a3fc874fed5162810c780f52adfb21f8c9cf2720991c7ea6236a0bb5be28b40f35819c21db354dda52b818479104d50be9bd89b3d901c209aca

Download Submit
\Users\Admin\AppData\Local\Temp\$77-Venom.exe

Filesize
534KB

MD5
3702c2b44a1d4877f4d1187be6c33958

SHA1
4755c7d9fb0582f94b8feb44be9d3c70031a0f33

SHA256
295277e76cfe8b80f6a2a9db2c69fdd2b36b4866b35fdec4cd7d6c67faecceb6

SHA512
11d073f0a6120a3fc874fed5162810c780f52adfb21f8c9cf2720991c7ea6236a0bb5be28b40f35819c21db354dda52b818479104d50be9bd89b3d901c209aca

Download Submit
\Users\Admin\AppData\Roaming\SubDir\windows chrome.exe

Filesize
534KB

MD5
3702c2b44a1d4877f4d1187be6c33958

SHA1
4755c7d9fb0582f94b8feb44be9d3c70031a0f33

SHA256
295277e76cfe8b80f6a2a9db2c69fdd2b36b4866b35fdec4cd7d6c67faecceb6

SHA512
11d073f0a6120a3fc874fed5162810c780f52adfb21f8c9cf2720991c7ea6236a0bb5be28b40f35819c21db354dda52b818479104d50be9bd89b3d901c209aca

Download Submit
memory/620-90-0x000000006F2D0000-0x000000006F87B000-memory.dmp

Filesize
5.7MB

Download
memory/620-91-0x00000000022F0000-0x0000000002F3A000-memory.dmp

Filesize
12.3MB

Download
memory/1032-59-0x0000000001F90000-0x0000000001FAC000-memory.dmp

Filesize
112KB

Download
memory/1032-54-0x0000000000A40000-0x0000000000B6C000-memory.dmp

Filesize
1.2MB

Download
memory/1032-55-0x0000000002160000-0x00000000021F4000-memory.dmp

Filesize
592KB

Download
memory/1236-86-0x00000000008A0000-0x000000000092C000-memory.dmp

Filesize
560KB

Download
memory/1468-73-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/1468-71-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/1468-75-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/1468-79-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/1468-80-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/1468-65-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/1468-74-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/1468-70-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/1468-68-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/1468-66-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/1880-58-0x0000000076AE1000-0x0000000076AE3000-memory.dmp

Filesize
8KB

Download
memory/2032-64-0x0000000000AD0000-0x0000000000B5C000-memory.dmp

Filesize
560KB

Download