mystic | 914615fc2a86a1a3aa8a108084dd30cc54e8b935b2f14f7def84c51a049c95c2

Analysis

max time kernel
128s
max time network
125s
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 10:05

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General

Target

b9636f454e7a68c89164dedcf58da53a18aeb784c2db2df56f5684178058c7f7.exe
Size

661KB
MD5

2039021a8b1902d9371bfd2f8cdda163
SHA1

3f70273299310a3b3087e8e922f245f31797525d
SHA256

b9636f454e7a68c89164dedcf58da53a18aeb784c2db2df56f5684178058c7f7
SHA512

8969c9357400eda5d5520483bbd8c5b461a41194a7c51a0c3bc09f4ede8082ee200cf56e1a8a7b9e4eb28be7c84e1873e7f0c6f6036bd3d66c7ff1e5e56596c1
SSDEEP

12288:2Mrry90puJE/T6HMfeKwfoWAac2oFJLwvK9MICg8n93J6yA:FyiAO6HMWFfnFc2CJLwS6fn56yA

Score

10^/10

mystic smokeloader backdoor evasion persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 3 IoCs

resource	yara_rule
behavioral14/memory/3800-18-0x0000000000400000-0x0000000000434000-memory.dmp	mystic_family
behavioral14/memory/3800-19-0x0000000000400000-0x0000000000434000-memory.dmp	mystic_family
behavioral14/memory/3800-21-0x0000000000400000-0x0000000000434000-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
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	AppLaunch.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	AppLaunch.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	AppLaunch.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	AppLaunch.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	AppLaunch.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	AppLaunch.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
5000	Sr2nd83.exe
4588	1HS09yK1.exe
4696	2qx7524.exe
1480	3wa36lj.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\\\""	b9636f454e7a68c89164dedcf58da53a18aeb784c2db2df56f5684178058c7f7.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\\\""	Sr2nd83.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4588 set thread context of 3772	4588	1HS09yK1.exe	85
PID 4696 set thread context of 3800	4696	2qx7524.exe	91

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 opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3wa36lj.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3wa36lj.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3wa36lj.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3772	AppLaunch.exe
3772	AppLaunch.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3772	AppLaunch.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3632 wrote to memory of 5000	3632	b9636f454e7a68c89164dedcf58da53a18aeb784c2db2df56f5684178058c7f7.exe	83
PID 3632 wrote to memory of 5000	3632	b9636f454e7a68c89164dedcf58da53a18aeb784c2db2df56f5684178058c7f7.exe	83
PID 3632 wrote to memory of 5000	3632	b9636f454e7a68c89164dedcf58da53a18aeb784c2db2df56f5684178058c7f7.exe	83
PID 5000 wrote to memory of 4588	5000	Sr2nd83.exe	84
PID 5000 wrote to memory of 4588	5000	Sr2nd83.exe	84
PID 5000 wrote to memory of 4588	5000	Sr2nd83.exe	84
PID 4588 wrote to memory of 3772	4588	1HS09yK1.exe	85
PID 4588 wrote to memory of 3772	4588	1HS09yK1.exe	85
PID 4588 wrote to memory of 3772	4588	1HS09yK1.exe	85
PID 4588 wrote to memory of 3772	4588	1HS09yK1.exe	85
PID 4588 wrote to memory of 3772	4588	1HS09yK1.exe	85
PID 4588 wrote to memory of 3772	4588	1HS09yK1.exe	85
PID 4588 wrote to memory of 3772	4588	1HS09yK1.exe	85
PID 4588 wrote to memory of 3772	4588	1HS09yK1.exe	85
PID 5000 wrote to memory of 4696	5000	Sr2nd83.exe	86
PID 5000 wrote to memory of 4696	5000	Sr2nd83.exe	86
PID 5000 wrote to memory of 4696	5000	Sr2nd83.exe	86
PID 4696 wrote to memory of 704	4696	2qx7524.exe	90
PID 4696 wrote to memory of 704	4696	2qx7524.exe	90
PID 4696 wrote to memory of 704	4696	2qx7524.exe	90
PID 4696 wrote to memory of 3800	4696	2qx7524.exe	91
PID 4696 wrote to memory of 3800	4696	2qx7524.exe	91
PID 4696 wrote to memory of 3800	4696	2qx7524.exe	91
PID 4696 wrote to memory of 3800	4696	2qx7524.exe	91
PID 4696 wrote to memory of 3800	4696	2qx7524.exe	91
PID 4696 wrote to memory of 3800	4696	2qx7524.exe	91
PID 4696 wrote to memory of 3800	4696	2qx7524.exe	91
PID 4696 wrote to memory of 3800	4696	2qx7524.exe	91
PID 4696 wrote to memory of 3800	4696	2qx7524.exe	91
PID 4696 wrote to memory of 3800	4696	2qx7524.exe	91
PID 3632 wrote to memory of 1480	3632	b9636f454e7a68c89164dedcf58da53a18aeb784c2db2df56f5684178058c7f7.exe	92
PID 3632 wrote to memory of 1480	3632	b9636f454e7a68c89164dedcf58da53a18aeb784c2db2df56f5684178058c7f7.exe	92
PID 3632 wrote to memory of 1480	3632	b9636f454e7a68c89164dedcf58da53a18aeb784c2db2df56f5684178058c7f7.exe	92

C:\Users\Admin\AppData\Local\Temp\b9636f454e7a68c89164dedcf58da53a18aeb784c2db2df56f5684178058c7f7.exe
"C:\Users\Admin\AppData\Local\Temp\b9636f454e7a68c89164dedcf58da53a18aeb784c2db2df56f5684178058c7f7.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3632
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Sr2nd83.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Sr2nd83.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:5000
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1HS09yK1.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1HS09yK1.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:4588
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      Modifies Windows Defender Real-time Protection settings
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3772
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2qx7524.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2qx7524.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:4696
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:704
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:3800
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3wa36lj.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3wa36lj.exe
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  PID:1480

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\3wa36lj.exe

Filesize
30KB

MD5
87d8feef3b4e673e15ee5e8399444021

SHA1
3a487acbbf44fdb3a3b3caa22b75c9cff5c6995c

SHA256
17209d3e2a1f688e8c5927fc172938bc1339d5e04bea1b70db3895c27359868f

SHA512
df44654d7b944c64a75a2e6e8c993144e3265fdd2b3ef9412044d5287fc07f1019a3c154fa60a448dc36523d230bd7897bde078bc0eed4a9a4dbc835a08e44c0

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Sr2nd83.exe

Filesize
537KB

MD5
0ec7e3f96b881a2945ab0cd86b36e448

SHA1
733a16baf7d11d83e0a7fdb2c55fde25238023ef

SHA256
4ebbc6c22c93a9925a53b927d3c63f1cd7bc56a35a9b26c7966cffed3dba4754

SHA512
e044d5303006ed6e3377dacaf3901b87cd0f99b25e5f6ac15ff6e008682785fbc0ea29389060f36aa84b7278ea1dcd925470402bbd1451d32001f6df2a70a783

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1HS09yK1.exe

Filesize
896KB

MD5
31dc50bb7773755a0b527415d04064f2

SHA1
ec2d24de207ce4f31bac02db633e1fa308173c58

SHA256
b59deefdc1962e108c7c124acab2bd04c57436e09ddeaa67d521a5403c10d2c3

SHA512
333d6e21de76a52b0e7a8e8609bc444ef02b714ba4bf66786485796a24b4fefbd9ce4251d4c5417a2df4f7fc8b46b2333536142d305c4d3a63bbdeb6c25695e7

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2qx7524.exe

Filesize
1.1MB

MD5
f700c1c447ebe41f7dfe00c07b83a69f

SHA1
07db680b38caad373f2efb450c192d8c07608c33

SHA256
88ebf69d8a4556deace22f3fead855c006531b29cb28bcaf5b54cc191e3a4a28

SHA512
3b268de7042b3250352cd0a050f80f57d78c72f12f70c8aa6f76ccc7a66e7b2d0e16d7f7a2db3ee7a89115203dddec142c74880d1b8f580ddeb2a96f2cf34076

Download Submit
memory/1480-24-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1480-26-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3772-14-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3800-18-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3800-19-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3800-21-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download