quasar | 59b2725f7466da2b7426c5d2b64af386c128e313738a0cd5a838a5ec3ca90b5c

Analysis

max time kernel
136s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
17-07-2024 13:40

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General

Target

533a8b7d2d523e95e31f517ea0e432de_JaffaCakes118.exe
Size

2.7MB
MD5

533a8b7d2d523e95e31f517ea0e432de
SHA1

64e003d9c733196f1c1569ee40c64983cc6e4127
SHA256

59b2725f7466da2b7426c5d2b64af386c128e313738a0cd5a838a5ec3ca90b5c
SHA512

b777d95be33e9b9cd5e0f4e5d9c494b83be0f835697bf9b358c7cc93acf6f2ef35f2ac502b9f96030c0262a0c5289d072b0920cd9ea46eea0fa1b4cc59136c4f
SSDEEP

49152:NUF0bDj03kJVsDZj3dE1juUo5XipVmaiDQ2EX8q8bgZvakhJGFLBz8LS:NUFUjmmVsDhNYj/VpVzh2I4S0FLBz8LS

Score

10^/10

quasar venomrat rat evasion rat rootkit spyware stealer trojan

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

RAT

23.105.131.178:7812

Mutex

VNM_MUTEX_gdy9bWxR0te3WgTRnI

Attributes

encryption_key
MDXzdQumRqZGIeya7nG9
install_name
Windows Defender Security.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Windows Update
subdirectory
Microsoft

Signatures

Contains code to disable Windows Defender 2 IoCs

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

Processes:

resource	yara_rule
behavioral2/files/0x0009000000023438-7.dat	disable_win_def
behavioral2/memory/5020-29-0x0000000000A70000-0x0000000000AFC000-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

Processes:

Windows Defender Security.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	Windows Defender Security.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	Windows Defender Security.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	Windows Defender Security.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	Windows Defender Security.exe

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

Quasar payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/files/0x0009000000023438-7.dat	family_quasar
behavioral2/memory/5020-29-0x0000000000A70000-0x0000000000AFC000-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

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

533a8b7d2d523e95e31f517ea0e432de_JaffaCakes118.exeWindows Defender Security.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-47134698-4092160662-1261813102-1000\Control Panel\International\Geo\Nation	533a8b7d2d523e95e31f517ea0e432de_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-47134698-4092160662-1261813102-1000\Control Panel\International\Geo\Nation	Windows Defender Security.exe

Executes dropped EXE 4 IoCs

Processes:

Windows Defender Security.exeAmazon valid emails by Scorpio.exeWindows Defender Security.exeWindows Defender Security.exe

pid	Process
5020	Windows Defender Security.exe
388	Amazon valid emails by Scorpio.exe
3740	Windows Defender Security.exe
3240	Windows Defender Security.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

Windows Defender Security.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	Windows Defender Security.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	Windows Defender Security.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.

Processes:

flow	ioc
8	ip-api.com

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

System Information Discovery
T1082

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
5044	388	WerFault.exe	88

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

Processes:

PING.EXE

pid	Process
4204	PING.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

Processes:

schtasks.exeschtasks.exe

pid	Process
4196	schtasks.exe
4968	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

powershell.exeWindows Defender Security.exeWindows Defender Security.exe

pid	Process
1764	powershell.exe
1764	powershell.exe
5020	Windows Defender Security.exe
5020	Windows Defender Security.exe
5020	Windows Defender Security.exe
5020	Windows Defender Security.exe
5020	Windows Defender Security.exe
5020	Windows Defender Security.exe
5020	Windows Defender Security.exe
3240	Windows Defender Security.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

Amazon valid emails by Scorpio.exeWindows Defender Security.exepowershell.exeWindows Defender Security.exeWindows Defender Security.exe

description	pid	Process
Token: SeDebugPrivilege	388	Amazon valid emails by Scorpio.exe
Token: SeDebugPrivilege	5020	Windows Defender Security.exe
Token: SeDebugPrivilege	1764	powershell.exe
Token: SeDebugPrivilege	3740	Windows Defender Security.exe
Token: SeDebugPrivilege	3740	Windows Defender Security.exe
Token: SeDebugPrivilege	3240	Windows Defender Security.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Windows Defender Security.exe

pid	Process
3740	Windows Defender Security.exe

Suspicious use of WriteProcessMemory 36 IoCs

Processes:

533a8b7d2d523e95e31f517ea0e432de_JaffaCakes118.exeWindows Defender Security.exeWindows Defender Security.execmd.execmd.exe

description	pid	Process	procid_target
PID 2284 wrote to memory of 5020	2284	533a8b7d2d523e95e31f517ea0e432de_JaffaCakes118.exe	87
PID 2284 wrote to memory of 5020	2284	533a8b7d2d523e95e31f517ea0e432de_JaffaCakes118.exe	87
PID 2284 wrote to memory of 5020	2284	533a8b7d2d523e95e31f517ea0e432de_JaffaCakes118.exe	87
PID 2284 wrote to memory of 388	2284	533a8b7d2d523e95e31f517ea0e432de_JaffaCakes118.exe	88
PID 2284 wrote to memory of 388	2284	533a8b7d2d523e95e31f517ea0e432de_JaffaCakes118.exe	88
PID 2284 wrote to memory of 388	2284	533a8b7d2d523e95e31f517ea0e432de_JaffaCakes118.exe	88
PID 5020 wrote to memory of 4196	5020	Windows Defender Security.exe	95
PID 5020 wrote to memory of 4196	5020	Windows Defender Security.exe	95
PID 5020 wrote to memory of 4196	5020	Windows Defender Security.exe	95
PID 5020 wrote to memory of 3740	5020	Windows Defender Security.exe	97
PID 5020 wrote to memory of 3740	5020	Windows Defender Security.exe	97
PID 5020 wrote to memory of 3740	5020	Windows Defender Security.exe	97
PID 5020 wrote to memory of 1764	5020	Windows Defender Security.exe	98
PID 5020 wrote to memory of 1764	5020	Windows Defender Security.exe	98
PID 5020 wrote to memory of 1764	5020	Windows Defender Security.exe	98
PID 3740 wrote to memory of 4968	3740	Windows Defender Security.exe	100
PID 3740 wrote to memory of 4968	3740	Windows Defender Security.exe	100
PID 3740 wrote to memory of 4968	3740	Windows Defender Security.exe	100
PID 5020 wrote to memory of 3392	5020	Windows Defender Security.exe	107
PID 5020 wrote to memory of 3392	5020	Windows Defender Security.exe	107
PID 5020 wrote to memory of 3392	5020	Windows Defender Security.exe	107
PID 3392 wrote to memory of 264	3392	cmd.exe	109
PID 3392 wrote to memory of 264	3392	cmd.exe	109
PID 3392 wrote to memory of 264	3392	cmd.exe	109
PID 5020 wrote to memory of 4008	5020	Windows Defender Security.exe	113
PID 5020 wrote to memory of 4008	5020	Windows Defender Security.exe	113
PID 5020 wrote to memory of 4008	5020	Windows Defender Security.exe	113
PID 4008 wrote to memory of 3532	4008	cmd.exe	115
PID 4008 wrote to memory of 3532	4008	cmd.exe	115
PID 4008 wrote to memory of 3532	4008	cmd.exe	115
PID 4008 wrote to memory of 4204	4008	cmd.exe	116
PID 4008 wrote to memory of 4204	4008	cmd.exe	116
PID 4008 wrote to memory of 4204	4008	cmd.exe	116
PID 4008 wrote to memory of 3240	4008	cmd.exe	121
PID 4008 wrote to memory of 3240	4008	cmd.exe	121
PID 4008 wrote to memory of 3240	4008	cmd.exe	121

C:\Users\Admin\AppData\Local\Temp\533a8b7d2d523e95e31f517ea0e432de_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\533a8b7d2d523e95e31f517ea0e432de_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2284
- C:\Users\Admin\AppData\Roaming\Windows Defender Security.exe
  "C:\Users\Admin\AppData\Roaming\Windows Defender Security.exe"
  2⤵
  - Modifies Windows Defender Real-time Protection settings
  - Checks computer location settings
  - Executes dropped EXE
  - Windows security modification
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5020
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "Windows Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Windows Defender Security.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4196
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows Defender Security.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows Defender Security.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3740
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks" /create /tn "Windows Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Windows Defender Security.exe" /rl HIGHEST /f
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:4968
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "powershell" Get-MpPreference -verbose
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1764
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k start /b del /q/f/s %TEMP%\* & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3392
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /K del /q/f/s C:\Users\Admin\AppData\Local\Temp\*
      4⤵
      PID:264
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\s1MOTPpv5b8i.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4008
  - - C:\Windows\SysWOW64\chcp.com
      chcp 65001
      4⤵
      PID:3532
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 10 localhost
      4⤵
      Runs ping.exe
      PID:4204
  - - C:\Users\Admin\AppData\Roaming\Windows Defender Security.exe
      "C:\Users\Admin\AppData\Roaming\Windows Defender Security.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3240
- C:\Users\Admin\AppData\Roaming\Amazon valid emails by Scorpio.exe
  "C:\Users\Admin\AppData\Roaming\Amazon valid emails by Scorpio.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:388
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 388 -s 3380
    3⤵
    - Program crash
    PID:5044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 388 -ip 388
1⤵
PID:1824

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

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Windows Defender Security.exe.log

Filesize
1KB

MD5
10eab9c2684febb5327b6976f2047587

SHA1
a12ed54146a7f5c4c580416aecb899549712449e

SHA256
f49dbd55029bfbc15134f7c6a4f967d6c39142c63f2e8f1f8c78fab108a2c928

SHA512
7e5fd90fffae723bd0c662a90e0730b507805f072771ee673d1d8c262dbf60c8a03ba5fe088f699a97c2e886380de158b2ccd59ee62e3d012dd6dd14ea9d0e50

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_isw40cyo.yw3.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\s1MOTPpv5b8i.bat

Filesize
219B

MD5
334e362a074c25b6c815cdda8c4ecda5

SHA1
633be7da3de325bedbd956a688e1162807230270

SHA256
d80669d118ed634138792c6031c1526757f841b2fa46511f827eff74a4ee20c0

SHA512
30cf6589dcfdf5894258a17f70ddb0245d993b76cff797c298400f91ea6c67661883c63186ba765842240b4daf1a6483913b3c93c56160890e0530277f36024c

Download Submit
C:\Users\Admin\AppData\Roaming\Amazon valid emails by Scorpio.exe

Filesize
2.8MB

MD5
555a824b8efc10e007b77675161fbfb8

SHA1
b4cf844d2bdd4580aa469341e8613ff6a67d2111

SHA256
e458a300574507d1bc999871b5a679494d69eef97c2fcff42715e3148d57646e

SHA512
b4fb2092fb1cf6ee94700e29336b0c109f4f2f8a8fcd53e56b136ff62d124d342024496281accaede0b84a5e46e2f7350f3f31b4a1e2d2ffd02436f61b78be8d

Download Submit
C:\Users\Admin\AppData\Roaming\Windows Defender Security.exe

Filesize
535KB

MD5
6f3b107a20b18244efb6473bae2544b1

SHA1
dc02ec107547c515bffeadcd87e6308c3bdfd390

SHA256
2b23c8f0299f92a4ba0f7d4eea26316cf2ffae2eaf41767ce452464c9951b2a0

SHA512
318b51a7bc6a37f9a4d2ee528d66124b541c9d3f2002ad7a15456071fe090cdb264f6439dbc3fa5471200d2faf5217d01af56b3eafa2830917480b080d31161c

Download Submit
memory/388-34-0x0000000005340000-0x00000000053DC000-memory.dmp

Filesize
624KB

Download
memory/388-27-0x0000000071BFE000-0x0000000071BFF000-memory.dmp

Filesize
4KB

Download
memory/388-39-0x0000000071BF0000-0x00000000723A0000-memory.dmp

Filesize
7.7MB

Download
memory/388-36-0x0000000005410000-0x000000000541A000-memory.dmp

Filesize
40KB

Download
memory/388-28-0x00000000004E0000-0x00000000007B4000-memory.dmp

Filesize
2.8MB

Download
memory/388-37-0x0000000005610000-0x0000000005666000-memory.dmp

Filesize
344KB

Download
memory/388-35-0x0000000071BF0000-0x00000000723A0000-memory.dmp

Filesize
7.7MB

Download
memory/1764-77-0x0000000007850000-0x0000000007ECA000-memory.dmp

Filesize
6.5MB

Download
memory/1764-64-0x00000000064A0000-0x00000000064D2000-memory.dmp

Filesize
200KB

Download
memory/1764-85-0x0000000007520000-0x0000000007528000-memory.dmp

Filesize
32KB

Download
memory/1764-84-0x0000000007540000-0x000000000755A000-memory.dmp

Filesize
104KB

Download
memory/1764-83-0x0000000007440000-0x0000000007454000-memory.dmp

Filesize
80KB

Download
memory/1764-82-0x0000000007430000-0x000000000743E000-memory.dmp

Filesize
56KB

Download
memory/1764-81-0x0000000007400000-0x0000000007411000-memory.dmp

Filesize
68KB

Download
memory/1764-80-0x0000000007480000-0x0000000007516000-memory.dmp

Filesize
600KB

Download
memory/1764-79-0x0000000007270000-0x000000000727A000-memory.dmp

Filesize
40KB

Download
memory/1764-48-0x0000000005030000-0x0000000005658000-memory.dmp

Filesize
6.2MB

Download
memory/1764-47-0x00000000025B0000-0x00000000025E6000-memory.dmp

Filesize
216KB

Download
memory/1764-49-0x0000000004F10000-0x0000000004F32000-memory.dmp

Filesize
136KB

Download
memory/1764-50-0x0000000004FB0000-0x0000000005016000-memory.dmp

Filesize
408KB

Download
memory/1764-78-0x0000000007200000-0x000000000721A000-memory.dmp

Filesize
104KB

Download
memory/1764-60-0x00000000058B0000-0x0000000005C04000-memory.dmp

Filesize
3.3MB

Download
memory/1764-61-0x0000000005EE0000-0x0000000005EFE000-memory.dmp

Filesize
120KB

Download
memory/1764-62-0x0000000005F00000-0x0000000005F4C000-memory.dmp

Filesize
304KB

Download
memory/1764-76-0x00000000070D0000-0x0000000007173000-memory.dmp

Filesize
652KB

Download
memory/1764-65-0x0000000070540000-0x000000007058C000-memory.dmp

Filesize
304KB

Download
memory/1764-75-0x0000000006500000-0x000000000651E000-memory.dmp

Filesize
120KB

Download
memory/2284-2-0x0000000074A20000-0x0000000074FD1000-memory.dmp

Filesize
5.7MB

Download
memory/2284-0-0x0000000074A22000-0x0000000074A23000-memory.dmp

Filesize
4KB

Download
memory/2284-26-0x0000000074A20000-0x0000000074FD1000-memory.dmp

Filesize
5.7MB

Download
memory/2284-1-0x0000000074A20000-0x0000000074FD1000-memory.dmp

Filesize
5.7MB

Download
memory/5020-38-0x0000000005470000-0x00000000054D6000-memory.dmp

Filesize
408KB

Download
memory/5020-30-0x0000000071BF0000-0x00000000723A0000-memory.dmp

Filesize
7.7MB

Download
memory/5020-33-0x0000000071BF0000-0x00000000723A0000-memory.dmp

Filesize
7.7MB

Download
memory/5020-29-0x0000000000A70000-0x0000000000AFC000-memory.dmp

Filesize
560KB

Download
memory/5020-31-0x0000000005A20000-0x0000000005FC4000-memory.dmp

Filesize
5.6MB

Download
memory/5020-32-0x00000000053C0000-0x0000000005452000-memory.dmp

Filesize
584KB

Download
memory/5020-88-0x0000000071BF0000-0x00000000723A0000-memory.dmp

Filesize
7.7MB

Download
memory/5020-93-0x0000000071BF0000-0x00000000723A0000-memory.dmp

Filesize
7.7MB

Download
memory/5020-40-0x00000000060D0000-0x00000000060E2000-memory.dmp

Filesize
72KB

Download
memory/5020-41-0x0000000006610000-0x000000000664C000-memory.dmp

Filesize
240KB

Download