mystic | ac90002ec144a6c8c89c45137265a202aeef6b583cef01223b622e10b4c4b797

Analysis

max time kernel
132s
max time network
102s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 18:40

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General

Target

3aa025ea78f4c4f22121974ca9750d5a185b237e08bdbb6226487f9b7182e85d.exe
Size

658KB
MD5

b0c2c81fdcde86499d25384bcc5b5496
SHA1

88e3a72292ded161a03f21a75f9867e2b37f2a1c
SHA256

3aa025ea78f4c4f22121974ca9750d5a185b237e08bdbb6226487f9b7182e85d
SHA512

e5bc6a333d930c280e690afe6d6ab0a9aea8faaa1c3ec3111a53b2f6c96eb92b6cdb07b2476ceadf69a9bf80a6dd3024a34560ec2e9dd5b09b647f3c5f6ceebd
SSDEEP

12288:QMrWy90eldXuavK8MFqMsq40dEqPEF4FHe/O1wqFhyh1bN2Ar:WyPpdKVqMsgdEqA4FHe/0eF7r

Score

10^/10

mystic smokeloader backdoor evasion persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 3 IoCs

resource	yara_rule
behavioral7/memory/3624-18-0x0000000000400000-0x0000000000434000-memory.dmp	mystic_family
behavioral7/memory/3624-19-0x0000000000400000-0x0000000000434000-memory.dmp	mystic_family
behavioral7/memory/3624-21-0x0000000000400000-0x0000000000434000-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
2768	cd7Xt28.exe
2516	1qy89gQ1.exe
1068	2eP3859.exe
3356	3sQ62eA.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\\\""	3aa025ea78f4c4f22121974ca9750d5a185b237e08bdbb6226487f9b7182e85d.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\\\""	cd7Xt28.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2516 set thread context of 1644	2516	1qy89gQ1.exe	86
PID 1068 set thread context of 3624	1068	2eP3859.exe	89

Launches sc.exe 1 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2988	sc.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

description	ioc	Process
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3sQ62eA.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3sQ62eA.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3sQ62eA.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1644	AppLaunch.exe
1644	AppLaunch.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1644	AppLaunch.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2764 wrote to memory of 2768	2764	3aa025ea78f4c4f22121974ca9750d5a185b237e08bdbb6226487f9b7182e85d.exe	83
PID 2764 wrote to memory of 2768	2764	3aa025ea78f4c4f22121974ca9750d5a185b237e08bdbb6226487f9b7182e85d.exe	83
PID 2764 wrote to memory of 2768	2764	3aa025ea78f4c4f22121974ca9750d5a185b237e08bdbb6226487f9b7182e85d.exe	83
PID 2768 wrote to memory of 2516	2768	cd7Xt28.exe	84
PID 2768 wrote to memory of 2516	2768	cd7Xt28.exe	84
PID 2768 wrote to memory of 2516	2768	cd7Xt28.exe	84
PID 2516 wrote to memory of 4892	2516	1qy89gQ1.exe	85
PID 2516 wrote to memory of 4892	2516	1qy89gQ1.exe	85
PID 2516 wrote to memory of 4892	2516	1qy89gQ1.exe	85
PID 2516 wrote to memory of 1644	2516	1qy89gQ1.exe	86
PID 2516 wrote to memory of 1644	2516	1qy89gQ1.exe	86
PID 2516 wrote to memory of 1644	2516	1qy89gQ1.exe	86
PID 2516 wrote to memory of 1644	2516	1qy89gQ1.exe	86
PID 2516 wrote to memory of 1644	2516	1qy89gQ1.exe	86
PID 2516 wrote to memory of 1644	2516	1qy89gQ1.exe	86
PID 2516 wrote to memory of 1644	2516	1qy89gQ1.exe	86
PID 2516 wrote to memory of 1644	2516	1qy89gQ1.exe	86
PID 2768 wrote to memory of 1068	2768	cd7Xt28.exe	87
PID 2768 wrote to memory of 1068	2768	cd7Xt28.exe	87
PID 2768 wrote to memory of 1068	2768	cd7Xt28.exe	87
PID 1068 wrote to memory of 3624	1068	2eP3859.exe	89
PID 1068 wrote to memory of 3624	1068	2eP3859.exe	89
PID 1068 wrote to memory of 3624	1068	2eP3859.exe	89
PID 1068 wrote to memory of 3624	1068	2eP3859.exe	89
PID 1068 wrote to memory of 3624	1068	2eP3859.exe	89
PID 1068 wrote to memory of 3624	1068	2eP3859.exe	89
PID 1068 wrote to memory of 3624	1068	2eP3859.exe	89
PID 1068 wrote to memory of 3624	1068	2eP3859.exe	89
PID 1068 wrote to memory of 3624	1068	2eP3859.exe	89
PID 1068 wrote to memory of 3624	1068	2eP3859.exe	89
PID 2764 wrote to memory of 3356	2764	3aa025ea78f4c4f22121974ca9750d5a185b237e08bdbb6226487f9b7182e85d.exe	90
PID 2764 wrote to memory of 3356	2764	3aa025ea78f4c4f22121974ca9750d5a185b237e08bdbb6226487f9b7182e85d.exe	90
PID 2764 wrote to memory of 3356	2764	3aa025ea78f4c4f22121974ca9750d5a185b237e08bdbb6226487f9b7182e85d.exe	90

C:\Users\Admin\AppData\Local\Temp\3aa025ea78f4c4f22121974ca9750d5a185b237e08bdbb6226487f9b7182e85d.exe
"C:\Users\Admin\AppData\Local\Temp\3aa025ea78f4c4f22121974ca9750d5a185b237e08bdbb6226487f9b7182e85d.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2764
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\cd7Xt28.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\cd7Xt28.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2768
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1qy89gQ1.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1qy89gQ1.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2516
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:4892
  - - 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:1644
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2eP3859.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2eP3859.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1068
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:3624
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3sQ62eA.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3sQ62eA.exe
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  PID:3356

C:\Windows\system32\sc.exe
C:\Windows\system32\sc.exe start wuauserv
1⤵
- Launches sc.exe
PID:2988

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\3sQ62eA.exe

Filesize
30KB

MD5
7fd8af5304b8a42cfa0789c68cf3c5f5

SHA1
9e0d86b3a16f0b4b5552599d17bc81ca9d7caae6

SHA256
8b338baf2fc4f210192cfd5b91731240f736a00b1a9500edf8cf69d50391b4bf

SHA512
959d9b878f34084cf6b5df1d22f3ab0e986cd506852cc0a03eca09aed383fcc05de70b9fd5918ea5e658437fe7848631ce547ac05a694fed318df2cb9c222d95

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\cd7Xt28.exe

Filesize
535KB

MD5
b09e420cf45230a44567f430930365b1

SHA1
0df8708e33e0f8b067f9e297720297395301d82e

SHA256
87d140d7e8a0f6081e1fff4f212630d08e8959e131dc82a13827ce04bdc3315d

SHA512
8b4dfb5962b953d4cd7e388238db291f49cbb9a9e44596db4aa2f709d955f31db7c13c8f757647b3d872efafac69aedbcf1be647f2b57079c7aeb04a5bf2f61f

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1qy89gQ1.exe

Filesize
886KB

MD5
f3a03faab31565c8caeed42902fae963

SHA1
413f1209770bd881a8d52232fe1538469d8fdd29

SHA256
8f88d0e19b4bf9a8f0f7997996a945decc02631aaf1f10c3e50df4ea61e896fb

SHA512
a216ae2e9b2ab77d6517470fd523acbb7deda58fb810ded8679e4ab99891610526f86cc106ba37b1906cc8bb6f98cc372108100294dcedd49c28579606d3f497

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2eP3859.exe

Filesize
1.1MB

MD5
67c318ba3f42eca9ba296cdf6822d816

SHA1
7d1114a59f2106d11079db6e535e89a01c39d493

SHA256
f28d96a64de53d5d1800b53ebe218a0454172762ebe4c7939fe9c767650cd95b

SHA512
f71d4c84469e98377eacdda5438f1a883b6e8b6f55eb4e0961148a677398d81077acceafb74bdbb9d35f40ff7ba0a93c5b1ab6ded8e7a3ca6b84cef5ff10803c

Download Submit
memory/1644-14-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3356-25-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3356-26-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3624-18-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3624-19-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3624-21-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download