quasar | ffe3d6f61150e4a25a4e9549252dc1a505bfd2247f7d3aacec825e1787f089ea

Analysis

max time kernel
6s
max time network
8s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
25-06-2024 04:57

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General

Target

0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe
Size

4.2MB
MD5

0ca81a3bec58298a318d19bdf208cb99
SHA1

cec944263887c4e3ac2956f2a27cbc9be86591d6
SHA256

ffe3d6f61150e4a25a4e9549252dc1a505bfd2247f7d3aacec825e1787f089ea
SHA512

eda9f6e37ea306e38fa5cdaf5c036782dab19a8dca628af63adb959d75579d014fd17bce5f4e9b5c7c6b24cea2cbaf95fbe849fe93b3e5faa87dbf69bdea1940
SSDEEP

12288:yeASxuABkJro+1xtmnzHurEuXu4EnWu5uQpNsuiJoXO1+iy1Qq8a+jI3TiVYzfTF:v

Score

10^/10

quasar venomrat skidy evasion rat rootkit spyware stealer trojan

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

Skidy

roasted-flag.auto.playit.gg:51952

Mutex

VNM_MUTEX_bsVy5mHRmaFZMQOLbI

Attributes

encryption_key
ux20jjbixeS7PecgmZeq
install_name
windows.exe
log_directory
Logs
reconnect_delay
3000
startup_key
windows
subdirectory
$windows

Signatures

Contains code to disable Windows Defender 5 IoCs

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

resource	yara_rule
behavioral1/memory/3004-12-0x0000000000400000-0x000000000048C000-memory.dmp	disable_win_def
behavioral1/memory/3004-16-0x0000000000400000-0x000000000048C000-memory.dmp	disable_win_def
behavioral1/memory/3004-14-0x0000000000400000-0x000000000048C000-memory.dmp	disable_win_def
behavioral1/memory/3004-8-0x0000000000400000-0x000000000048C000-memory.dmp	disable_win_def
behavioral1/memory/3004-6-0x0000000000400000-0x000000000048C000-memory.dmp	disable_win_def

Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs

evasion trojan

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe

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

Quasar payload 5 IoCs

resource	yara_rule
behavioral1/memory/3004-12-0x0000000000400000-0x000000000048C000-memory.dmp	family_quasar
behavioral1/memory/3004-16-0x0000000000400000-0x000000000048C000-memory.dmp	family_quasar
behavioral1/memory/3004-14-0x0000000000400000-0x000000000048C000-memory.dmp	family_quasar
behavioral1/memory/3004-8-0x0000000000400000-0x000000000048C000-memory.dmp	family_quasar
behavioral1/memory/3004-6-0x0000000000400000-0x000000000048C000-memory.dmp	family_quasar

VenomRAT
VenomRAT is a modified version of QuasarRAT with some added features, such as rootkit and stealer capabilites.
rat rootkit stealer venomrat

Executes dropped EXE 2 IoCs

pid	Process
2644	windows.exe
1724	windows.exe

Loads dropped DLL 6 IoCs

pid	Process
3004	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe
1888	WerFault.exe
1888	WerFault.exe
1888	WerFault.exe
1888	WerFault.exe
1888	WerFault.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.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
2	ip-api.com

Suspicious use of NtSetInformationThreadHideFromDebugger 16 IoCs

pid	Process
1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe
1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe
1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe
1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe
1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe
1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe
1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe
1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe
2644	windows.exe
2644	windows.exe
2644	windows.exe
2644	windows.exe
2644	windows.exe
2644	windows.exe
2644	windows.exe
2644	windows.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1044 set thread context of 3004	1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	32
PID 2644 set thread context of 1724	2644	windows.exe	43

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2692	1044	WerFault.exe	27
1888	2644	WerFault.exe	37

Delays execution with timeout.exe 2 IoCs

evasion

pid	Process
3040	timeout.exe
2968	timeout.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

pid	Process
2504	schtasks.exe
1272	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe
1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe
1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe
1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe
2484	powershell.exe
2644	windows.exe
2644	windows.exe
2644	windows.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe
Token: SeDebugPrivilege	3004	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe
Token: SeDebugPrivilege	2484	powershell.exe
Token: SeDebugPrivilege	2644	windows.exe
Token: SeDebugPrivilege	1724	windows.exe
Token: SeDebugPrivilege	1724	windows.exe

Suspicious use of WriteProcessMemory 62 IoCs

description	pid	Process	procid_target
PID 1044 wrote to memory of 760	1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	28
PID 1044 wrote to memory of 760	1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	28
PID 1044 wrote to memory of 760	1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	28
PID 1044 wrote to memory of 760	1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	28
PID 760 wrote to memory of 3040	760	cmd.exe	30
PID 760 wrote to memory of 3040	760	cmd.exe	30
PID 760 wrote to memory of 3040	760	cmd.exe	30
PID 760 wrote to memory of 3040	760	cmd.exe	30
PID 1044 wrote to memory of 2064	1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	31
PID 1044 wrote to memory of 2064	1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	31
PID 1044 wrote to memory of 2064	1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	31
PID 1044 wrote to memory of 2064	1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	31
PID 1044 wrote to memory of 3004	1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	32
PID 1044 wrote to memory of 3004	1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	32
PID 1044 wrote to memory of 3004	1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	32
PID 1044 wrote to memory of 3004	1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	32
PID 1044 wrote to memory of 3004	1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	32
PID 1044 wrote to memory of 3004	1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	32
PID 1044 wrote to memory of 3004	1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	32
PID 1044 wrote to memory of 3004	1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	32
PID 1044 wrote to memory of 3004	1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	32
PID 1044 wrote to memory of 2692	1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	33
PID 1044 wrote to memory of 2692	1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	33
PID 1044 wrote to memory of 2692	1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	33
PID 1044 wrote to memory of 2692	1044	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	33
PID 3004 wrote to memory of 2504	3004	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	35
PID 3004 wrote to memory of 2504	3004	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	35
PID 3004 wrote to memory of 2504	3004	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	35
PID 3004 wrote to memory of 2504	3004	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	35
PID 3004 wrote to memory of 2644	3004	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	37
PID 3004 wrote to memory of 2644	3004	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	37
PID 3004 wrote to memory of 2644	3004	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	37
PID 3004 wrote to memory of 2644	3004	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	37
PID 3004 wrote to memory of 2484	3004	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	38
PID 3004 wrote to memory of 2484	3004	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	38
PID 3004 wrote to memory of 2484	3004	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	38
PID 3004 wrote to memory of 2484	3004	0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe	38
PID 2644 wrote to memory of 2192	2644	windows.exe	40
PID 2644 wrote to memory of 2192	2644	windows.exe	40
PID 2644 wrote to memory of 2192	2644	windows.exe	40
PID 2644 wrote to memory of 2192	2644	windows.exe	40
PID 2192 wrote to memory of 2968	2192	cmd.exe	42
PID 2192 wrote to memory of 2968	2192	cmd.exe	42
PID 2192 wrote to memory of 2968	2192	cmd.exe	42
PID 2192 wrote to memory of 2968	2192	cmd.exe	42
PID 2644 wrote to memory of 1724	2644	windows.exe	43
PID 2644 wrote to memory of 1724	2644	windows.exe	43
PID 2644 wrote to memory of 1724	2644	windows.exe	43
PID 2644 wrote to memory of 1724	2644	windows.exe	43
PID 2644 wrote to memory of 1724	2644	windows.exe	43
PID 2644 wrote to memory of 1724	2644	windows.exe	43
PID 2644 wrote to memory of 1724	2644	windows.exe	43
PID 2644 wrote to memory of 1724	2644	windows.exe	43
PID 2644 wrote to memory of 1724	2644	windows.exe	43
PID 2644 wrote to memory of 1888	2644	windows.exe	44
PID 2644 wrote to memory of 1888	2644	windows.exe	44
PID 2644 wrote to memory of 1888	2644	windows.exe	44
PID 2644 wrote to memory of 1888	2644	windows.exe	44
PID 1724 wrote to memory of 1272	1724	windows.exe	45
PID 1724 wrote to memory of 1272	1724	windows.exe	45
PID 1724 wrote to memory of 1272	1724	windows.exe	45
PID 1724 wrote to memory of 1272	1724	windows.exe	45

C:\Users\Admin\AppData\Local\Temp\0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1044
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout 1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:760
- - C:\Windows\SysWOW64\timeout.exe
    timeout 1
    3⤵
    - Delays execution with timeout.exe
    PID:3040
- C:\Users\Admin\AppData\Local\Temp\0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe"
  2⤵
  PID:2064
- C:\Users\Admin\AppData\Local\Temp\0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe"
  2⤵
  - Modifies Windows Defender Real-time Protection settings
  - Loads dropped DLL
  - Windows security modification
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3004
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "windows" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2504
- - C:\Users\Admin\AppData\Roaming\$windows\windows.exe
    "C:\Users\Admin\AppData\Roaming\$windows\windows.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2644
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 1
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2192
    - - C:\Windows\SysWOW64\timeout.exe
        
        timeout 1
        5⤵
        Delays execution with timeout.exe
        
        PID:2968
  - - C:\Users\Admin\AppData\Roaming\$windows\windows.exe
      "C:\Users\Admin\AppData\Roaming\$windows\windows.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:1724
    - - C:\Windows\SysWOW64\schtasks.exe
        
        "schtasks" /create /tn "windows" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\$windows\windows.exe" /rl HIGHEST /f
        5⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:1272
    - - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\6PMtcOGqI1ko.bat" "
        5⤵
        
        PID:2580
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2644 -s 844
      4⤵
      Loads dropped DLL
      Program crash
      PID:1888
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "powershell" Get-MpPreference -verbose
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2484
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1044 -s 868
  2⤵
  - Program crash
  PID:2692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Roaming\$windows\windows.exe

Filesize
4.2MB

MD5
0ca81a3bec58298a318d19bdf208cb99

SHA1
cec944263887c4e3ac2956f2a27cbc9be86591d6

SHA256
ffe3d6f61150e4a25a4e9549252dc1a505bfd2247f7d3aacec825e1787f089ea

SHA512
eda9f6e37ea306e38fa5cdaf5c036782dab19a8dca628af63adb959d75579d014fd17bce5f4e9b5c7c6b24cea2cbaf95fbe849fe93b3e5faa87dbf69bdea1940

Download Submit
memory/1044-1-0x0000000000E70000-0x000000000129C000-memory.dmp

Filesize
4.2MB

Download
memory/1044-2-0x0000000000A20000-0x0000000000ABE000-memory.dmp

Filesize
632KB

Download
memory/1044-3-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download
memory/1044-0-0x00000000740BE000-0x00000000740BF000-memory.dmp

Filesize
4KB

Download
memory/1724-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2644-24-0x0000000000FA0000-0x00000000013CC000-memory.dmp

Filesize
4.2MB

Download
memory/3004-16-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/3004-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3004-8-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/3004-6-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/3004-4-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/3004-14-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/3004-12-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/3004-5-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download