mystic | 9874024432d4a4dc4017d0ebf9773eaea78b9aea747dfbe995938af4b572eb38

Analysis

max time kernel
134s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
24-05-2024 10:41

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General

Target

a22d19b8f183bcd64a7c85a1e82f19e6db501a7e19b93ebc313864c2a0e6ce9a.exe
Size

723KB
MD5

ca70b6b7eab6a054d392dc5d98839264
SHA1

72cfe825b3d930b137a3314a707c6e8d2573356a
SHA256

a22d19b8f183bcd64a7c85a1e82f19e6db501a7e19b93ebc313864c2a0e6ce9a
SHA512

0f348870c18cbc54871ee745b21c2a6eb6a2722f36e9abdf067796042278df46017458171c7408158f832606468c91d10ac9f9250bb67e9481be04e2e638492c
SSDEEP

12288:+Mrfy903SKxjPt13ERBqTs5U+ezRjWCQhFqg80rOjn1Phd:By9oj/24RghFXPOjn1j

Score

10^/10

mystic smokeloader backdoor evasion persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 3 IoCs

Processes:

resource	yara_rule
behavioral16/memory/3656-54-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral16/memory/3656-55-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral16/memory/3656-57-0x0000000000400000-0x0000000000433000-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:

1cf20nR0.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	1cf20nR0.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	1cf20nR0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	1cf20nR0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	1cf20nR0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	1cf20nR0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	1cf20nR0.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:

fP4on48.exe1cf20nR0.exe2NU4677.exe3ix45uw.exe

pid process

3484 fP4on48.exe
4512 1cf20nR0.exe
4456 2NU4677.exe
216 3ix45uw.exe

pid	process
3484	fP4on48.exe
4512	1cf20nR0.exe
4456	2NU4677.exe
216	3ix45uw.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

1cf20nR0.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	1cf20nR0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	1cf20nR0.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

a22d19b8f183bcd64a7c85a1e82f19e6db501a7e19b93ebc313864c2a0e6ce9a.exefP4on48.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\\\""	a22d19b8f183bcd64a7c85a1e82f19e6db501a7e19b93ebc313864c2a0e6ce9a.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\\\""	fP4on48.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

2NU4677.exe3ix45uw.exe

description	pid	process	target process
PID 4456 set thread context of 3656	4456	2NU4677.exe	AppLaunch.exe
PID 216 set thread context of 4196	216	3ix45uw.exe	AppLaunch.exe

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

1432 4456 WerFault.exe 2NU4677.exe
3120 216 WerFault.exe 3ix45uw.exe

pid	pid_target	process	target process
1432	4456	WerFault.exe	2NU4677.exe
3120	216	WerFault.exe	3ix45uw.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:

1cf20nR0.exe

pid process

4512 1cf20nR0.exe
4512 1cf20nR0.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

1cf20nR0.exe

description pid process

Token: SeDebugPrivilege 4512 1cf20nR0.exe

pid	process
4512	1cf20nR0.exe
4512	1cf20nR0.exe

description	pid	process
Token: SeDebugPrivilege	4512	1cf20nR0.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

a22d19b8f183bcd64a7c85a1e82f19e6db501a7e19b93ebc313864c2a0e6ce9a.exefP4on48.exe2NU4677.exe3ix45uw.exe

description	pid	process	target process
PID 4768 wrote to memory of 3484	4768	a22d19b8f183bcd64a7c85a1e82f19e6db501a7e19b93ebc313864c2a0e6ce9a.exe	fP4on48.exe
PID 4768 wrote to memory of 3484	4768	a22d19b8f183bcd64a7c85a1e82f19e6db501a7e19b93ebc313864c2a0e6ce9a.exe	fP4on48.exe
PID 4768 wrote to memory of 3484	4768	a22d19b8f183bcd64a7c85a1e82f19e6db501a7e19b93ebc313864c2a0e6ce9a.exe	fP4on48.exe
PID 3484 wrote to memory of 4512	3484	fP4on48.exe	1cf20nR0.exe
PID 3484 wrote to memory of 4512	3484	fP4on48.exe	1cf20nR0.exe
PID 3484 wrote to memory of 4512	3484	fP4on48.exe	1cf20nR0.exe
PID 3484 wrote to memory of 4456	3484	fP4on48.exe	2NU4677.exe
PID 3484 wrote to memory of 4456	3484	fP4on48.exe	2NU4677.exe
PID 3484 wrote to memory of 4456	3484	fP4on48.exe	2NU4677.exe
PID 4456 wrote to memory of 3656	4456	2NU4677.exe	AppLaunch.exe
PID 4456 wrote to memory of 3656	4456	2NU4677.exe	AppLaunch.exe
PID 4456 wrote to memory of 3656	4456	2NU4677.exe	AppLaunch.exe
PID 4456 wrote to memory of 3656	4456	2NU4677.exe	AppLaunch.exe
PID 4456 wrote to memory of 3656	4456	2NU4677.exe	AppLaunch.exe
PID 4456 wrote to memory of 3656	4456	2NU4677.exe	AppLaunch.exe
PID 4456 wrote to memory of 3656	4456	2NU4677.exe	AppLaunch.exe
PID 4456 wrote to memory of 3656	4456	2NU4677.exe	AppLaunch.exe
PID 4456 wrote to memory of 3656	4456	2NU4677.exe	AppLaunch.exe
PID 4456 wrote to memory of 3656	4456	2NU4677.exe	AppLaunch.exe
PID 4768 wrote to memory of 216	4768	a22d19b8f183bcd64a7c85a1e82f19e6db501a7e19b93ebc313864c2a0e6ce9a.exe	3ix45uw.exe
PID 4768 wrote to memory of 216	4768	a22d19b8f183bcd64a7c85a1e82f19e6db501a7e19b93ebc313864c2a0e6ce9a.exe	3ix45uw.exe
PID 4768 wrote to memory of 216	4768	a22d19b8f183bcd64a7c85a1e82f19e6db501a7e19b93ebc313864c2a0e6ce9a.exe	3ix45uw.exe
PID 216 wrote to memory of 4196	216	3ix45uw.exe	AppLaunch.exe
PID 216 wrote to memory of 4196	216	3ix45uw.exe	AppLaunch.exe
PID 216 wrote to memory of 4196	216	3ix45uw.exe	AppLaunch.exe
PID 216 wrote to memory of 4196	216	3ix45uw.exe	AppLaunch.exe
PID 216 wrote to memory of 4196	216	3ix45uw.exe	AppLaunch.exe
PID 216 wrote to memory of 4196	216	3ix45uw.exe	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\a22d19b8f183bcd64a7c85a1e82f19e6db501a7e19b93ebc313864c2a0e6ce9a.exe
"C:\Users\Admin\AppData\Local\Temp\a22d19b8f183bcd64a7c85a1e82f19e6db501a7e19b93ebc313864c2a0e6ce9a.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4768
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fP4on48.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fP4on48.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:3484
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1cf20nR0.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1cf20nR0.exe
    3⤵
    - Modifies Windows Defender Real-time Protection settings
    - Executes dropped EXE
    - Windows security modification
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4512
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2NU4677.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2NU4677.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:4456
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:3656
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4456 -s 572
      4⤵
      Program crash
      PID:1432
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3ix45uw.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3ix45uw.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:216
- - 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:4196
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 216 -s 600
    3⤵
    - Program crash
    PID:3120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4456 -ip 4456
1⤵
PID:3196

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 216 -ip 216
1⤵
PID:4852

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3ix45uw.exe

Filesize
270KB

MD5
c1c8e9af560235565445f1b0a6239aa6

SHA1
61e061dee015768176b04cfce9133350c22c23f6

SHA256
6aedf78736ac572c8ee9d81b607c326878658767da95ef927febbd9b074ac65f

SHA512
29e574c18baed07380008f1285b99a7fc6fac7b241eea07aa4ef4f940a6b1d8e192dd188ff62e37ea7cea81fa4ea6e52dad9c8f0806238192fff1271eddec390

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fP4on48.exe

Filesize
478KB

MD5
12c678a0b844e06adfb25c66e1d14f94

SHA1
6051584ef77c11d81199c118cb5fe19bb9140795

SHA256
ba3ea81a0c35357c3f09fa7a9fbe09de17e326b2842b583f876233c05ade516a

SHA512
a67d935fe9980f142148c819c708226d267515473c5547e5adbd741efb00a60c0d53bdc8cf9f76a47c0efa48445a5d10e528ad02c009a894a5458cb78b80f440

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1cf20nR0.exe

Filesize
194KB

MD5
6241b03d68a610324ecda52f0f84e287

SHA1
da80280b6e3925e455925efd6c6e59a6118269c4

SHA256
ec74de9416b8ef2c3bdb1a9835e54548b3185524210d1aeffa91c98f74f751e2

SHA512
a60fe447cb0bed8e6cbd7c344b19a4602553209cbda7a40993f0fdf01e096bda4b79de0b528ecebf2efa0007f81d7bd6c7ef84252b2a160c93d642a78f0095f9

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2NU4677.exe

Filesize
422KB

MD5
81f1bd2b46a8b98e804ca864e52c2053

SHA1
2d05bd9f60d478699aaf0efe924892bc13c7c3b5

SHA256
4b8ffbba0f58fb849aaf86fab329b7b3df65911477f172f046c97d5741d3c310

SHA512
80fa738d3b366bb7b7222fc8471882ea150404d420d03754a093339428b9a00a31e61bf61dbc45926fe39a79e5f995330aadd3cf4f983ccae64caad5c987d226

Download Submit
memory/3656-57-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/3656-55-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/3656-54-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4196-61-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4512-38-0x0000000002350000-0x0000000002366000-memory.dmp

Filesize
88KB

Download
memory/4512-28-0x0000000002350000-0x0000000002366000-memory.dmp

Filesize
88KB

Download
memory/4512-46-0x0000000002350000-0x0000000002366000-memory.dmp

Filesize
88KB

Download
memory/4512-44-0x0000000002350000-0x0000000002366000-memory.dmp

Filesize
88KB

Download
memory/4512-42-0x0000000002350000-0x0000000002366000-memory.dmp

Filesize
88KB

Download
memory/4512-40-0x0000000002350000-0x0000000002366000-memory.dmp

Filesize
88KB

Download
memory/4512-20-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/4512-36-0x0000000002350000-0x0000000002366000-memory.dmp

Filesize
88KB

Download
memory/4512-34-0x0000000002350000-0x0000000002366000-memory.dmp

Filesize
88KB

Download
memory/4512-33-0x0000000002350000-0x0000000002366000-memory.dmp

Filesize
88KB

Download
memory/4512-30-0x0000000002350000-0x0000000002366000-memory.dmp

Filesize
88KB

Download
memory/4512-48-0x0000000002350000-0x0000000002366000-memory.dmp

Filesize
88KB

Download
memory/4512-26-0x0000000002350000-0x0000000002366000-memory.dmp

Filesize
88KB

Download
memory/4512-24-0x0000000002350000-0x0000000002366000-memory.dmp

Filesize
88KB

Download
memory/4512-22-0x0000000002350000-0x0000000002366000-memory.dmp

Filesize
88KB

Download
memory/4512-21-0x0000000002350000-0x0000000002366000-memory.dmp

Filesize
88KB

Download
memory/4512-50-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/4512-19-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/4512-18-0x0000000002350000-0x000000000236C000-memory.dmp

Filesize
112KB

Download
memory/4512-16-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/4512-17-0x0000000004B40000-0x00000000050E4000-memory.dmp

Filesize
5.6MB

Download
memory/4512-15-0x00000000022D0000-0x00000000022EE000-memory.dmp

Filesize
120KB

Download
memory/4512-14-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download