mystic | 4ce71244da4dd5d9b0b7535c6b62aebf516adc87a36195170af93efa3a630b9f

Analysis

max time kernel
132s
max time network
108s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
23-05-2024 16:40

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General

Target

3b8019115c4ceca7cbcfddbb6bbe680cac9c8811275a16616d40ff294ceb6ed8.exe
Size

696KB
MD5

27879b73babd965386e6ea971cd0c265
SHA1

af275d236ac0898858ae954208d4731e10e6cc0c
SHA256

3b8019115c4ceca7cbcfddbb6bbe680cac9c8811275a16616d40ff294ceb6ed8
SHA512

2c885e48b4c553cc50d7f917dc54e9fbd8ee3cdd8c1f30bbce4c5af0a07e5e96d03e28aee3143b6dc6b28950ed03222d7fcb7dc5c1893eaaea6039103881e8b3
SSDEEP

12288:bMrjy9099lSqc8ni531abDD7za10HlrdMvY112w7JQcVIfGQWsCDDm:Uyg9Iq3i53g40Hvus7mcVIvfCPm

Score

10^/10

mystic smokeloader backdoor evasion persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 3 IoCs

Processes:

resource	yara_rule
behavioral6/memory/456-54-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral6/memory/456-57-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral6/memory/456-55-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family

Modifies Windows Defender Real-time Protection settings 3 TTPs 6 IoCs

evasion trojan

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

Processes:

1rp24xV4.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	1rp24xV4.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	1rp24xV4.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	1rp24xV4.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	1rp24xV4.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	1rp24xV4.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	1rp24xV4.exe

Mystic
Mystic is an infostealer written in C++.
stealer mystic
SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Executes dropped EXE 4 IoCs

Processes:

MG5EG62.exe1rp24xV4.exe2OW1017.exe3gG70Mz.exe

pid process

4688 MG5EG62.exe
1344 1rp24xV4.exe
3888 2OW1017.exe
4760 3gG70Mz.exe

pid	process
4688	MG5EG62.exe
1344	1rp24xV4.exe
3888	2OW1017.exe
4760	3gG70Mz.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

1rp24xV4.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	1rp24xV4.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	1rp24xV4.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

3b8019115c4ceca7cbcfddbb6bbe680cac9c8811275a16616d40ff294ceb6ed8.exeMG5EG62.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	3b8019115c4ceca7cbcfddbb6bbe680cac9c8811275a16616d40ff294ceb6ed8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup1 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP001.TMP\\\""	MG5EG62.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

2OW1017.exe3gG70Mz.exe

description	pid	process	target process
PID 3888 set thread context of 456	3888	2OW1017.exe	AppLaunch.exe
PID 4760 set thread context of 4368	4760	3gG70Mz.exe	AppLaunch.exe

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

2776 3888 WerFault.exe 2OW1017.exe
1264 4760 WerFault.exe 3gG70Mz.exe

pid	pid_target	process	target process
2776	3888	WerFault.exe	2OW1017.exe
1264	4760	WerFault.exe	3gG70Mz.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

AppLaunch.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	AppLaunch.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	AppLaunch.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	AppLaunch.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

1rp24xV4.exe

pid process

1344 1rp24xV4.exe
1344 1rp24xV4.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

1rp24xV4.exe

description pid process

Token: SeDebugPrivilege 1344 1rp24xV4.exe

pid	process
1344	1rp24xV4.exe
1344	1rp24xV4.exe

description	pid	process
Token: SeDebugPrivilege	1344	1rp24xV4.exe

Suspicious use of WriteProcessMemory 31 IoCs

Processes:

3b8019115c4ceca7cbcfddbb6bbe680cac9c8811275a16616d40ff294ceb6ed8.exeMG5EG62.exe2OW1017.exe3gG70Mz.exe

description	pid	process	target process
PID 3940 wrote to memory of 4688	3940	3b8019115c4ceca7cbcfddbb6bbe680cac9c8811275a16616d40ff294ceb6ed8.exe	MG5EG62.exe
PID 3940 wrote to memory of 4688	3940	3b8019115c4ceca7cbcfddbb6bbe680cac9c8811275a16616d40ff294ceb6ed8.exe	MG5EG62.exe
PID 3940 wrote to memory of 4688	3940	3b8019115c4ceca7cbcfddbb6bbe680cac9c8811275a16616d40ff294ceb6ed8.exe	MG5EG62.exe
PID 4688 wrote to memory of 1344	4688	MG5EG62.exe	1rp24xV4.exe
PID 4688 wrote to memory of 1344	4688	MG5EG62.exe	1rp24xV4.exe
PID 4688 wrote to memory of 1344	4688	MG5EG62.exe	1rp24xV4.exe
PID 4688 wrote to memory of 3888	4688	MG5EG62.exe	2OW1017.exe
PID 4688 wrote to memory of 3888	4688	MG5EG62.exe	2OW1017.exe
PID 4688 wrote to memory of 3888	4688	MG5EG62.exe	2OW1017.exe
PID 3888 wrote to memory of 3076	3888	2OW1017.exe	AppLaunch.exe
PID 3888 wrote to memory of 3076	3888	2OW1017.exe	AppLaunch.exe
PID 3888 wrote to memory of 3076	3888	2OW1017.exe	AppLaunch.exe
PID 3888 wrote to memory of 456	3888	2OW1017.exe	AppLaunch.exe
PID 3888 wrote to memory of 456	3888	2OW1017.exe	AppLaunch.exe
PID 3888 wrote to memory of 456	3888	2OW1017.exe	AppLaunch.exe
PID 3888 wrote to memory of 456	3888	2OW1017.exe	AppLaunch.exe
PID 3888 wrote to memory of 456	3888	2OW1017.exe	AppLaunch.exe
PID 3888 wrote to memory of 456	3888	2OW1017.exe	AppLaunch.exe
PID 3888 wrote to memory of 456	3888	2OW1017.exe	AppLaunch.exe
PID 3888 wrote to memory of 456	3888	2OW1017.exe	AppLaunch.exe
PID 3888 wrote to memory of 456	3888	2OW1017.exe	AppLaunch.exe
PID 3888 wrote to memory of 456	3888	2OW1017.exe	AppLaunch.exe
PID 3940 wrote to memory of 4760	3940	3b8019115c4ceca7cbcfddbb6bbe680cac9c8811275a16616d40ff294ceb6ed8.exe	3gG70Mz.exe
PID 3940 wrote to memory of 4760	3940	3b8019115c4ceca7cbcfddbb6bbe680cac9c8811275a16616d40ff294ceb6ed8.exe	3gG70Mz.exe
PID 3940 wrote to memory of 4760	3940	3b8019115c4ceca7cbcfddbb6bbe680cac9c8811275a16616d40ff294ceb6ed8.exe	3gG70Mz.exe
PID 4760 wrote to memory of 4368	4760	3gG70Mz.exe	AppLaunch.exe
PID 4760 wrote to memory of 4368	4760	3gG70Mz.exe	AppLaunch.exe
PID 4760 wrote to memory of 4368	4760	3gG70Mz.exe	AppLaunch.exe
PID 4760 wrote to memory of 4368	4760	3gG70Mz.exe	AppLaunch.exe
PID 4760 wrote to memory of 4368	4760	3gG70Mz.exe	AppLaunch.exe
PID 4760 wrote to memory of 4368	4760	3gG70Mz.exe	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\3b8019115c4ceca7cbcfddbb6bbe680cac9c8811275a16616d40ff294ceb6ed8.exe
"C:\Users\Admin\AppData\Local\Temp\3b8019115c4ceca7cbcfddbb6bbe680cac9c8811275a16616d40ff294ceb6ed8.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3940

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\MG5EG62.exe
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\MG5EG62.exe
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4688

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1rp24xV4.exe
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1rp24xV4.exe
3⤵
- Modifies Windows Defender Real-time Protection settings
- Executes dropped EXE
- Windows security modification
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1344

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2OW1017.exe
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2OW1017.exe
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3888

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
4⤵
PID:3076

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
4⤵
PID:456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3888 -s 600
4⤵
- Program crash
PID:2776

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3gG70Mz.exe
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3gG70Mz.exe
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4760

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
3⤵
- Checks SCSI registry key(s)
PID:4368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4760 -s 204
3⤵
- Program crash
PID:1264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3888 -ip 3888
1⤵
PID:4820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4760 -ip 4760
1⤵
PID:1764

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3gG70Mz.exe
Filesize
268KB

MD5
f09b788bfb242f8edcb4b4ab2bd0275a

SHA1
71b2273479460cbda9d08073d0b116935d2c6813

SHA256
f291d8694f3198b824474d57a18792218a5d622f2f59370efe6679563db87521

SHA512
709bdc1a303159b27f7e7fa793d1c78f3d6223b5a3ba2c03cbea36eafc1bd0e2edc1bd19e61f7ed5ca53a1ab5018d7c171fc9c3c4ff67b02b4087a07cfd5dda6

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\MG5EG62.exe
Filesize
452KB

MD5
0b47b99adb36648c75e59ea8edfe887c

SHA1
d9aad265309203b60b9454afac83be056c85d250

SHA256
b9c8f23484482dffa45efb6de348db3196b8404ce69a21743a8eb0f44e6da8a0

SHA512
f69a3fda19148fac783cb297cd14d8f405b16d44c4aeff6afbd5939981ac7fd521f7d6825ce0a470a37cc7f63024678090b5c8a02f698a61883be87fa9cf4221

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1rp24xV4.exe
Filesize
192KB

MD5
8904f85abd522c7d0cb5789d9583ccff

SHA1
5b34d8595b37c9e1fb9682b06dc5228efe07f0c6

SHA256
7624b62fe97c8e370c82bc86f69c2f627328e701ce1f3d9bed92a1e5fe11fd7f

SHA512
04dd0c4e612b6287af6a655425085d687538d756dcd639ecb6c62bcdafddde52c56ae305a6240ee1329a95d9cc59dee6de5000d273a5a560ad1adc3284e00e12

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2OW1017.exe
Filesize
378KB

MD5
f0831f173733de08511f3a0739f278a6

SHA1
06dc809d653c5d2c97386084ae13b50a73eb5b60

SHA256
8b00f9dce8ceb2123fba3bc9f88419960d1e661b6287eafeba4f0a2ee4be3d27

SHA512
19e3176ce1f154758f685cc4582e93587aa534a251de315473e35758dcd6ff6315880be7602097308dc89c355742be4729bad81de597e8d430a8e868082314e3

Download Submit
memory/456-55-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/456-57-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/456-54-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1344-35-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/1344-21-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/1344-41-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/1344-48-0x0000000073FE0000-0x0000000074790000-memory.dmp

Filesize
7.7MB

Download
memory/1344-47-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/1344-39-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/1344-37-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/1344-19-0x0000000073FE0000-0x0000000074790000-memory.dmp

Filesize
7.7MB

Download
memory/1344-33-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/1344-31-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/1344-30-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/1344-45-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/1344-20-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/1344-43-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/1344-27-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/1344-25-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/1344-23-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/1344-50-0x0000000073FE0000-0x0000000074790000-memory.dmp

Filesize
7.7MB

Download
memory/1344-18-0x0000000073FE0000-0x0000000074790000-memory.dmp

Filesize
7.7MB

Download
memory/1344-17-0x0000000004990000-0x00000000049AC000-memory.dmp

Filesize
112KB

Download
memory/1344-16-0x0000000004A20000-0x0000000004FC4000-memory.dmp

Filesize
5.6MB

Download
memory/1344-15-0x0000000002280000-0x000000000229E000-memory.dmp

Filesize
120KB

Download
memory/1344-14-0x0000000073FEE000-0x0000000073FEF000-memory.dmp

Filesize
4KB

Download
memory/4368-61-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download