mystic | 8f7ecfcea350d8e91e6bb9083833f37b57aa78d15022b68c407055e2463bd982

Analysis

max time kernel
136s
max time network
107s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 18:55

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General

Target

cf840721c08fa286313bd7ac68fc5bac88559652036dfbdcc7b3c6f0cfa13d70.exe
Size

653KB
MD5

14656483a2946f19c7c918dbe5d537f4
SHA1

0f55bc8757709fc17cf86317ddd8a9b92eb9f94f
SHA256

cf840721c08fa286313bd7ac68fc5bac88559652036dfbdcc7b3c6f0cfa13d70
SHA512

222259cbf31951a3c8bd567e715f312538fda0253630c0bb62e9bad472e8b75ed878cc4a7fcb583d9ed4d2ba6e7ba4350f06025f64d9560b16b2af93fe5d8e75
SSDEEP

12288:pMrNy90j2CrZ3gEuD+IxNXGEWmnP4HWaZ0RD65h3Ef+5YW2x3iY3S98:Ey82+t1IlGE14HWnRD65ha48

Score

10^/10

mystic smokeloader backdoor evasion persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 3 IoCs

resource	yara_rule
behavioral16/memory/3488-18-0x0000000000400000-0x0000000000434000-memory.dmp	mystic_family
behavioral16/memory/3488-19-0x0000000000400000-0x0000000000434000-memory.dmp	mystic_family
behavioral16/memory/3488-21-0x0000000000400000-0x0000000000434000-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
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
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

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
1652	sJ2DX51.exe
4512	1Wv12kl4.exe
4384	2PK7079.exe
3032	3LM44qU.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\\\""	cf840721c08fa286313bd7ac68fc5bac88559652036dfbdcc7b3c6f0cfa13d70.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\\\""	sJ2DX51.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4512 set thread context of 1904	4512	1Wv12kl4.exe	86
PID 4384 set thread context of 3488	4384	2PK7079.exe	90

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	3LM44qU.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3LM44qU.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3LM44qU.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1904	AppLaunch.exe
1904	AppLaunch.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1904	AppLaunch.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2164 wrote to memory of 1652	2164	cf840721c08fa286313bd7ac68fc5bac88559652036dfbdcc7b3c6f0cfa13d70.exe	83
PID 2164 wrote to memory of 1652	2164	cf840721c08fa286313bd7ac68fc5bac88559652036dfbdcc7b3c6f0cfa13d70.exe	83
PID 2164 wrote to memory of 1652	2164	cf840721c08fa286313bd7ac68fc5bac88559652036dfbdcc7b3c6f0cfa13d70.exe	83
PID 1652 wrote to memory of 4512	1652	sJ2DX51.exe	84
PID 1652 wrote to memory of 4512	1652	sJ2DX51.exe	84
PID 1652 wrote to memory of 4512	1652	sJ2DX51.exe	84
PID 4512 wrote to memory of 1904	4512	1Wv12kl4.exe	86
PID 4512 wrote to memory of 1904	4512	1Wv12kl4.exe	86
PID 4512 wrote to memory of 1904	4512	1Wv12kl4.exe	86
PID 4512 wrote to memory of 1904	4512	1Wv12kl4.exe	86
PID 4512 wrote to memory of 1904	4512	1Wv12kl4.exe	86
PID 4512 wrote to memory of 1904	4512	1Wv12kl4.exe	86
PID 4512 wrote to memory of 1904	4512	1Wv12kl4.exe	86
PID 4512 wrote to memory of 1904	4512	1Wv12kl4.exe	86
PID 1652 wrote to memory of 4384	1652	sJ2DX51.exe	87
PID 1652 wrote to memory of 4384	1652	sJ2DX51.exe	87
PID 1652 wrote to memory of 4384	1652	sJ2DX51.exe	87
PID 4384 wrote to memory of 3488	4384	2PK7079.exe	90
PID 4384 wrote to memory of 3488	4384	2PK7079.exe	90
PID 4384 wrote to memory of 3488	4384	2PK7079.exe	90
PID 4384 wrote to memory of 3488	4384	2PK7079.exe	90
PID 4384 wrote to memory of 3488	4384	2PK7079.exe	90
PID 4384 wrote to memory of 3488	4384	2PK7079.exe	90
PID 4384 wrote to memory of 3488	4384	2PK7079.exe	90
PID 4384 wrote to memory of 3488	4384	2PK7079.exe	90
PID 4384 wrote to memory of 3488	4384	2PK7079.exe	90
PID 4384 wrote to memory of 3488	4384	2PK7079.exe	90
PID 2164 wrote to memory of 3032	2164	cf840721c08fa286313bd7ac68fc5bac88559652036dfbdcc7b3c6f0cfa13d70.exe	91
PID 2164 wrote to memory of 3032	2164	cf840721c08fa286313bd7ac68fc5bac88559652036dfbdcc7b3c6f0cfa13d70.exe	91
PID 2164 wrote to memory of 3032	2164	cf840721c08fa286313bd7ac68fc5bac88559652036dfbdcc7b3c6f0cfa13d70.exe	91

C:\Users\Admin\AppData\Local\Temp\cf840721c08fa286313bd7ac68fc5bac88559652036dfbdcc7b3c6f0cfa13d70.exe
"C:\Users\Admin\AppData\Local\Temp\cf840721c08fa286313bd7ac68fc5bac88559652036dfbdcc7b3c6f0cfa13d70.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2164
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sJ2DX51.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sJ2DX51.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:1652
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Wv12kl4.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Wv12kl4.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:4512
  - - 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:1904
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2PK7079.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2PK7079.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:4384
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:3488
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3LM44qU.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3LM44qU.exe
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  PID:3032

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\3LM44qU.exe

Filesize
30KB

MD5
587204dec020b59c39e994689d308b36

SHA1
9bf3c24a462c26f337dfb3a22a649be8effd53ce

SHA256
e8f929a5489d4524dd948c1d42adbf4650d628fae06ed090d112a674ab9f330a

SHA512
10185fb42665604de874f2bc671c573b1a4828f4e5184ad773a9add1f2176c421dec2e3bbe2dcb1352f638237a79fd2e47731526fbd380a6d83f155222c9695a

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sJ2DX51.exe

Filesize
528KB

MD5
095eae25cf99013cb95d365e45043bad

SHA1
c977d026c2ea71164e302ffb7739bf5fc3dc1409

SHA256
813fd089754f941bfcdab5c9ef44cf6a6874e32f98a84330afb3b4ed03806412

SHA512
4e63600109a92dfa9a7b1d257e18aa61f3d4089e4c8f91b281801ca7e99a3bfe2f8ff926703049fb67250f41594e38956ab4694d2e3182b4c40a1d2a12d14411

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Wv12kl4.exe

Filesize
886KB

MD5
e6c622dda3a4806f5e20122c3c263e29

SHA1
1f1467822754c7d75e8214b967be6f254605a4b6

SHA256
fee7f941dd52109d66c97e18ebf86632e1ec2465d93379755edcaee74f3bad15

SHA512
74efb19e2fbecf77e3456a88adf2bd5926c14869e0da3bd0bb4642df54a2fe4a68b5b2e641a262b59eeccf997790d03d8ee33a24a21cb9bf1a6edb717c3f79d3

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2PK7079.exe

Filesize
1.1MB

MD5
b574f40e1deab2460227e9899ec46533

SHA1
e9f9c9298eaa099ee059cb3ba62ed5d62eda4c6a

SHA256
6275786357c95c0d5cd5fcf86175640fb6e960736b985b7c4e2c5468bd5c2aaa

SHA512
37e4f04239f6ca6df5e0210d5a7654538da8f7b2fdda9a7cb7f5bd6efabda9d7070471ba968e74ba655bbb9c4bb74c58216b57488a80d787f7565be23dc6693c

Download Submit
memory/1904-14-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3032-25-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3032-27-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3488-18-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3488-19-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3488-21-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download