mystic | c35b2a353f3f737fd5d522bda8150c7fe11a4c4773ad1702d174b480462784c6

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
23-05-2024 17:26

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General

Target

36b2548e8cff694e8667d04ab33d149c6e8bc4cad4bc4adc501ac7c1189f6c4f.exe
Size

696KB
MD5

60a06b357591f715a801b79c5b32967a
SHA1

5dd59fe5078e07bac523f417ff4b99df60df684a
SHA256

36b2548e8cff694e8667d04ab33d149c6e8bc4cad4bc4adc501ac7c1189f6c4f
SHA512

0b0c2da8a778fbdd211ebddef16aa59f39fdfe5f3b460d065a7e6ca0d8988b18d7ff0d6a5b3f97367e239a85cee2ac89ac6733026ed0f5df2bd2ca235b8730ba
SSDEEP

12288:rMrty90OK5hhGOKyXEEGFQabDD7zd1pHlrdMz6172w7XQcVIfGQWsCDDM:eyIPxPNGFNLpHv247AcVIvfCPM

Score

10^/10

mystic smokeloader backdoor evasion persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 3 IoCs

resource	yara_rule
behavioral3/memory/3640-54-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral3/memory/3640-57-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral3/memory/3640-55-0x0000000000400000-0x0000000000428000-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

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	1Oe20KW3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	1Oe20KW3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	1Oe20KW3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	1Oe20KW3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	1Oe20KW3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	1Oe20KW3.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

pid	Process
2732	MW4tw07.exe
928	1Oe20KW3.exe
3088	2yK9039.exe
4412	3DV57YK.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	1Oe20KW3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	1Oe20KW3.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

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\\\""	36b2548e8cff694e8667d04ab33d149c6e8bc4cad4bc4adc501ac7c1189f6c4f.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\\\""	MW4tw07.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3088 set thread context of 3640	3088	2yK9039.exe	99
PID 4412 set thread context of 1756	4412	3DV57YK.exe	106

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1516	3088	WerFault.exe	95
724	4412	WerFault.exe	103

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

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
928	1Oe20KW3.exe
928	1Oe20KW3.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	928	1Oe20KW3.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 752 wrote to memory of 2732	752	36b2548e8cff694e8667d04ab33d149c6e8bc4cad4bc4adc501ac7c1189f6c4f.exe	83
PID 752 wrote to memory of 2732	752	36b2548e8cff694e8667d04ab33d149c6e8bc4cad4bc4adc501ac7c1189f6c4f.exe	83
PID 752 wrote to memory of 2732	752	36b2548e8cff694e8667d04ab33d149c6e8bc4cad4bc4adc501ac7c1189f6c4f.exe	83
PID 2732 wrote to memory of 928	2732	MW4tw07.exe	84
PID 2732 wrote to memory of 928	2732	MW4tw07.exe	84
PID 2732 wrote to memory of 928	2732	MW4tw07.exe	84
PID 2732 wrote to memory of 3088	2732	MW4tw07.exe	95
PID 2732 wrote to memory of 3088	2732	MW4tw07.exe	95
PID 2732 wrote to memory of 3088	2732	MW4tw07.exe	95
PID 3088 wrote to memory of 3640	3088	2yK9039.exe	99
PID 3088 wrote to memory of 3640	3088	2yK9039.exe	99
PID 3088 wrote to memory of 3640	3088	2yK9039.exe	99
PID 3088 wrote to memory of 3640	3088	2yK9039.exe	99
PID 3088 wrote to memory of 3640	3088	2yK9039.exe	99
PID 3088 wrote to memory of 3640	3088	2yK9039.exe	99
PID 3088 wrote to memory of 3640	3088	2yK9039.exe	99
PID 3088 wrote to memory of 3640	3088	2yK9039.exe	99
PID 3088 wrote to memory of 3640	3088	2yK9039.exe	99
PID 3088 wrote to memory of 3640	3088	2yK9039.exe	99
PID 752 wrote to memory of 4412	752	36b2548e8cff694e8667d04ab33d149c6e8bc4cad4bc4adc501ac7c1189f6c4f.exe	103
PID 752 wrote to memory of 4412	752	36b2548e8cff694e8667d04ab33d149c6e8bc4cad4bc4adc501ac7c1189f6c4f.exe	103
PID 752 wrote to memory of 4412	752	36b2548e8cff694e8667d04ab33d149c6e8bc4cad4bc4adc501ac7c1189f6c4f.exe	103
PID 4412 wrote to memory of 5080	4412	3DV57YK.exe	105
PID 4412 wrote to memory of 5080	4412	3DV57YK.exe	105
PID 4412 wrote to memory of 5080	4412	3DV57YK.exe	105
PID 4412 wrote to memory of 1756	4412	3DV57YK.exe	106
PID 4412 wrote to memory of 1756	4412	3DV57YK.exe	106
PID 4412 wrote to memory of 1756	4412	3DV57YK.exe	106
PID 4412 wrote to memory of 1756	4412	3DV57YK.exe	106
PID 4412 wrote to memory of 1756	4412	3DV57YK.exe	106
PID 4412 wrote to memory of 1756	4412	3DV57YK.exe	106

C:\Users\Admin\AppData\Local\Temp\36b2548e8cff694e8667d04ab33d149c6e8bc4cad4bc4adc501ac7c1189f6c4f.exe
"C:\Users\Admin\AppData\Local\Temp\36b2548e8cff694e8667d04ab33d149c6e8bc4cad4bc4adc501ac7c1189f6c4f.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:752
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\MW4tw07.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\MW4tw07.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2732
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Oe20KW3.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Oe20KW3.exe
    3⤵
    - Modifies Windows Defender Real-time Protection settings
    - Executes dropped EXE
    - Windows security modification
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:928
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yK9039.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yK9039.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:3088
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:3640
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 156
      4⤵
      Program crash
      PID:1516
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3DV57YK.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3DV57YK.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4412
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:5080
- - 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:1756
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4412 -s 256
    3⤵
    - Program crash
    PID:724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3088 -ip 3088
1⤵
PID:3820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4412 -ip 4412
1⤵
PID:216

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3DV57YK.exe

Filesize
268KB

MD5
f09b788bfb242f8edcb4b4ab2bd0275a

SHA1
71b2273479460cbda9d08073d0b116935d2c6813

SHA256
f291d8694f3198b824474d57a18792218a5d622f2f59370efe6679563db87521

SHA512
709bdc1a303159b27f7e7fa793d1c78f3d6223b5a3ba2c03cbea36eafc1bd0e2edc1bd19e61f7ed5ca53a1ab5018d7c171fc9c3c4ff67b02b4087a07cfd5dda6

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\MW4tw07.exe

Filesize
452KB

MD5
e723e66d50960c4f8874f27c00f0fde8

SHA1
64de6968e6858883d1176c76d74c7a2d0f09e794

SHA256
563cfc38646b7f60b5722d0ce0c1b114ed4ebd5ae4034df42fcf9988dff0935a

SHA512
12f1b7db162bed457634913e926adb4a53abbe80f49bd418a023e42769c3c1d9e2e4966612014c21240d279437b0b8011034a5fed161d5c66e99678d9e4d0685

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Oe20KW3.exe

Filesize
192KB

MD5
8904f85abd522c7d0cb5789d9583ccff

SHA1
5b34d8595b37c9e1fb9682b06dc5228efe07f0c6

SHA256
7624b62fe97c8e370c82bc86f69c2f627328e701ce1f3d9bed92a1e5fe11fd7f

SHA512
04dd0c4e612b6287af6a655425085d687538d756dcd639ecb6c62bcdafddde52c56ae305a6240ee1329a95d9cc59dee6de5000d273a5a560ad1adc3284e00e12

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yK9039.exe

Filesize
378KB

MD5
f0831f173733de08511f3a0739f278a6

SHA1
06dc809d653c5d2c97386084ae13b50a73eb5b60

SHA256
8b00f9dce8ceb2123fba3bc9f88419960d1e661b6287eafeba4f0a2ee4be3d27

SHA512
19e3176ce1f154758f685cc4582e93587aa534a251de315473e35758dcd6ff6315880be7602097308dc89c355742be4729bad81de597e8d430a8e868082314e3

Download Submit
memory/928-35-0x0000000004AD0000-0x0000000004AE6000-memory.dmp

Filesize
88KB

Download
memory/928-31-0x0000000004AD0000-0x0000000004AE6000-memory.dmp

Filesize
88KB

Download
memory/928-18-0x0000000004AD0000-0x0000000004AEC000-memory.dmp

Filesize
112KB

Download
memory/928-19-0x0000000073C50000-0x0000000074400000-memory.dmp

Filesize
7.7MB

Download
memory/928-47-0x0000000004AD0000-0x0000000004AE6000-memory.dmp

Filesize
88KB

Download
memory/928-45-0x0000000004AD0000-0x0000000004AE6000-memory.dmp

Filesize
88KB

Download
memory/928-43-0x0000000004AD0000-0x0000000004AE6000-memory.dmp

Filesize
88KB

Download
memory/928-41-0x0000000004AD0000-0x0000000004AE6000-memory.dmp

Filesize
88KB

Download
memory/928-39-0x0000000004AD0000-0x0000000004AE6000-memory.dmp

Filesize
88KB

Download
memory/928-37-0x0000000004AD0000-0x0000000004AE6000-memory.dmp

Filesize
88KB

Download
memory/928-16-0x0000000073C50000-0x0000000074400000-memory.dmp

Filesize
7.7MB

Download
memory/928-48-0x0000000073C50000-0x0000000074400000-memory.dmp

Filesize
7.7MB

Download
memory/928-33-0x0000000004AD0000-0x0000000004AE6000-memory.dmp

Filesize
88KB

Download
memory/928-17-0x0000000004C50000-0x00000000051F4000-memory.dmp

Filesize
5.6MB

Download
memory/928-29-0x0000000004AD0000-0x0000000004AE6000-memory.dmp

Filesize
88KB

Download
memory/928-27-0x0000000004AD0000-0x0000000004AE6000-memory.dmp

Filesize
88KB

Download
memory/928-25-0x0000000004AD0000-0x0000000004AE6000-memory.dmp

Filesize
88KB

Download
memory/928-23-0x0000000004AD0000-0x0000000004AE6000-memory.dmp

Filesize
88KB

Download
memory/928-21-0x0000000004AD0000-0x0000000004AE6000-memory.dmp

Filesize
88KB

Download
memory/928-20-0x0000000004AD0000-0x0000000004AE6000-memory.dmp

Filesize
88KB

Download
memory/928-50-0x0000000073C50000-0x0000000074400000-memory.dmp

Filesize
7.7MB

Download
memory/928-15-0x0000000002360000-0x000000000237E000-memory.dmp

Filesize
120KB

Download
memory/928-14-0x0000000073C5E000-0x0000000073C5F000-memory.dmp

Filesize
4KB

Download
memory/1756-61-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3640-57-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3640-55-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3640-54-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download