mystic | 4ce71244da4dd5d9b0b7535c6b62aebf516adc87a36195170af93efa3a630b9f

Analysis

max time kernel
134s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
23-05-2024 11:07

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General

Target

5d95f476419d3a3135715f2eed0aa6de69b130436772d29100fd7870a2c450f4.exe
Size

696KB
MD5

0f62f896edf7c0f7b0eacc881f7feceb
SHA1

cb193fb660821253e53576b87a73ad66826ebf4d
SHA256

5d95f476419d3a3135715f2eed0aa6de69b130436772d29100fd7870a2c450f4
SHA512

0f178a9db103b9edef4ef7f52b0ca300afd5b176efb7128b26e0bc3c1b40228ccf0b169d7f5bcfe6c9da142e309bfa7531326268a99283f135128f861f572403
SSDEEP

12288:OMrmy909zxhmrLQJOidPaabXD7zz1PHlrdMKF102w7qmFMpTBybonpn+fC:My+zKrLw7PnBPHvT67qmyltz

Score

10^/10

mystic smokeloader backdoor evasion persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 3 IoCs

resource	yara_rule
behavioral11/memory/1420-54-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral11/memory/1420-57-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral11/memory/1420-55-0x0000000000400000-0x0000000000428000-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"	1YM03Gy7.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	1YM03Gy7.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	1YM03Gy7.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	1YM03Gy7.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	1YM03Gy7.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	1YM03Gy7.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
2292	Ji6ux84.exe
4364	1YM03Gy7.exe
1392	2Dy8992.exe
924	3uV91Ya.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	1YM03Gy7.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	1YM03Gy7.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\\\""	5d95f476419d3a3135715f2eed0aa6de69b130436772d29100fd7870a2c450f4.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\\\""	Ji6ux84.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1392 set thread context of 1420	1392	2Dy8992.exe	100
PID 924 set thread context of 5032	924	3uV91Ya.exe	109

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1984	1392	WerFault.exe	97
1756	924	WerFault.exe	105

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	AppLaunch.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	AppLaunch.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	AppLaunch.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4364	1YM03Gy7.exe
4364	1YM03Gy7.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4364	1YM03Gy7.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 2292	2016	5d95f476419d3a3135715f2eed0aa6de69b130436772d29100fd7870a2c450f4.exe	83
PID 2016 wrote to memory of 2292	2016	5d95f476419d3a3135715f2eed0aa6de69b130436772d29100fd7870a2c450f4.exe	83
PID 2016 wrote to memory of 2292	2016	5d95f476419d3a3135715f2eed0aa6de69b130436772d29100fd7870a2c450f4.exe	83
PID 2292 wrote to memory of 4364	2292	Ji6ux84.exe	84
PID 2292 wrote to memory of 4364	2292	Ji6ux84.exe	84
PID 2292 wrote to memory of 4364	2292	Ji6ux84.exe	84
PID 2292 wrote to memory of 1392	2292	Ji6ux84.exe	97
PID 2292 wrote to memory of 1392	2292	Ji6ux84.exe	97
PID 2292 wrote to memory of 1392	2292	Ji6ux84.exe	97
PID 1392 wrote to memory of 1420	1392	2Dy8992.exe	100
PID 1392 wrote to memory of 1420	1392	2Dy8992.exe	100
PID 1392 wrote to memory of 1420	1392	2Dy8992.exe	100
PID 1392 wrote to memory of 1420	1392	2Dy8992.exe	100
PID 1392 wrote to memory of 1420	1392	2Dy8992.exe	100
PID 1392 wrote to memory of 1420	1392	2Dy8992.exe	100
PID 1392 wrote to memory of 1420	1392	2Dy8992.exe	100
PID 1392 wrote to memory of 1420	1392	2Dy8992.exe	100
PID 1392 wrote to memory of 1420	1392	2Dy8992.exe	100
PID 1392 wrote to memory of 1420	1392	2Dy8992.exe	100
PID 2016 wrote to memory of 924	2016	5d95f476419d3a3135715f2eed0aa6de69b130436772d29100fd7870a2c450f4.exe	105
PID 2016 wrote to memory of 924	2016	5d95f476419d3a3135715f2eed0aa6de69b130436772d29100fd7870a2c450f4.exe	105
PID 2016 wrote to memory of 924	2016	5d95f476419d3a3135715f2eed0aa6de69b130436772d29100fd7870a2c450f4.exe	105
PID 924 wrote to memory of 632	924	3uV91Ya.exe	107
PID 924 wrote to memory of 632	924	3uV91Ya.exe	107
PID 924 wrote to memory of 632	924	3uV91Ya.exe	107
PID 924 wrote to memory of 1764	924	3uV91Ya.exe	108
PID 924 wrote to memory of 1764	924	3uV91Ya.exe	108
PID 924 wrote to memory of 1764	924	3uV91Ya.exe	108
PID 924 wrote to memory of 5032	924	3uV91Ya.exe	109
PID 924 wrote to memory of 5032	924	3uV91Ya.exe	109
PID 924 wrote to memory of 5032	924	3uV91Ya.exe	109
PID 924 wrote to memory of 5032	924	3uV91Ya.exe	109
PID 924 wrote to memory of 5032	924	3uV91Ya.exe	109
PID 924 wrote to memory of 5032	924	3uV91Ya.exe	109

C:\Users\Admin\AppData\Local\Temp\5d95f476419d3a3135715f2eed0aa6de69b130436772d29100fd7870a2c450f4.exe
"C:\Users\Admin\AppData\Local\Temp\5d95f476419d3a3135715f2eed0aa6de69b130436772d29100fd7870a2c450f4.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Ji6ux84.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Ji6ux84.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2292
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1YM03Gy7.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1YM03Gy7.exe
    3⤵
    - Modifies Windows Defender Real-time Protection settings
    - Executes dropped EXE
    - Windows security modification
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4364
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Dy8992.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Dy8992.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1392
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:1420
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1392 -s 152
      4⤵
      Program crash
      PID:1984
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3uV91Ya.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3uV91Ya.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:924
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:632
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:1764
- - 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:5032
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 924 -s 152
    3⤵
    - Program crash
    PID:1756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1392 -ip 1392
1⤵
PID:4052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 924 -ip 924
1⤵
PID:3544

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\3uV91Ya.exe

Filesize
268KB

MD5
f09b788bfb242f8edcb4b4ab2bd0275a

SHA1
71b2273479460cbda9d08073d0b116935d2c6813

SHA256
f291d8694f3198b824474d57a18792218a5d622f2f59370efe6679563db87521

SHA512
709bdc1a303159b27f7e7fa793d1c78f3d6223b5a3ba2c03cbea36eafc1bd0e2edc1bd19e61f7ed5ca53a1ab5018d7c171fc9c3c4ff67b02b4087a07cfd5dda6

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Ji6ux84.exe

Filesize
452KB

MD5
0e63141d5ce2cdbe3cfa56810c106c96

SHA1
f9765f17d0e7ca780171de3a46ea1fd91fbe7c53

SHA256
b09dbcffe47e3b7a5d70f1e5006cdcb5559c563e048c86269be045f66fa7a9ed

SHA512
c780468ff56e6840d276bf3b57396791003429626f02822adafabd501458331d26fb9061a1cf4d03673c24ae7a92e1b9f060f27af54e20d1803f90088a2250b5

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1YM03Gy7.exe

Filesize
192KB

MD5
8904f85abd522c7d0cb5789d9583ccff

SHA1
5b34d8595b37c9e1fb9682b06dc5228efe07f0c6

SHA256
7624b62fe97c8e370c82bc86f69c2f627328e701ce1f3d9bed92a1e5fe11fd7f

SHA512
04dd0c4e612b6287af6a655425085d687538d756dcd639ecb6c62bcdafddde52c56ae305a6240ee1329a95d9cc59dee6de5000d273a5a560ad1adc3284e00e12

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Dy8992.exe

Filesize
378KB

MD5
f0831f173733de08511f3a0739f278a6

SHA1
06dc809d653c5d2c97386084ae13b50a73eb5b60

SHA256
8b00f9dce8ceb2123fba3bc9f88419960d1e661b6287eafeba4f0a2ee4be3d27

SHA512
19e3176ce1f154758f685cc4582e93587aa534a251de315473e35758dcd6ff6315880be7602097308dc89c355742be4729bad81de597e8d430a8e868082314e3

Download Submit
memory/1420-55-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1420-57-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1420-54-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4364-38-0x0000000002680000-0x0000000002696000-memory.dmp

Filesize
88KB

Download
memory/4364-30-0x0000000002680000-0x0000000002696000-memory.dmp

Filesize
88KB

Download
memory/4364-40-0x0000000002680000-0x0000000002696000-memory.dmp

Filesize
88KB

Download
memory/4364-48-0x0000000002680000-0x0000000002696000-memory.dmp

Filesize
88KB

Download
memory/4364-46-0x0000000002680000-0x0000000002696000-memory.dmp

Filesize
88KB

Download
memory/4364-44-0x0000000002680000-0x0000000002696000-memory.dmp

Filesize
88KB

Download
memory/4364-42-0x0000000002680000-0x0000000002696000-memory.dmp

Filesize
88KB

Download
memory/4364-17-0x0000000074950000-0x0000000075100000-memory.dmp

Filesize
7.7MB

Download
memory/4364-36-0x0000000002680000-0x0000000002696000-memory.dmp

Filesize
88KB

Download
memory/4364-34-0x0000000002680000-0x0000000002696000-memory.dmp

Filesize
88KB

Download
memory/4364-32-0x0000000002680000-0x0000000002696000-memory.dmp

Filesize
88KB

Download
memory/4364-20-0x0000000074950000-0x0000000075100000-memory.dmp

Filesize
7.7MB

Download
memory/4364-28-0x0000000002680000-0x0000000002696000-memory.dmp

Filesize
88KB

Download
memory/4364-26-0x0000000002680000-0x0000000002696000-memory.dmp

Filesize
88KB

Download
memory/4364-24-0x0000000002680000-0x0000000002696000-memory.dmp

Filesize
88KB

Download
memory/4364-22-0x0000000002680000-0x0000000002696000-memory.dmp

Filesize
88KB

Download
memory/4364-21-0x0000000002680000-0x0000000002696000-memory.dmp

Filesize
88KB

Download
memory/4364-50-0x0000000074950000-0x0000000075100000-memory.dmp

Filesize
7.7MB

Download
memory/4364-19-0x0000000074950000-0x0000000075100000-memory.dmp

Filesize
7.7MB

Download
memory/4364-18-0x0000000002680000-0x000000000269C000-memory.dmp

Filesize
112KB

Download
memory/4364-16-0x0000000004D30000-0x00000000052D4000-memory.dmp

Filesize
5.6MB

Download
memory/4364-15-0x00000000022E0000-0x00000000022FE000-memory.dmp

Filesize
120KB

Download
memory/4364-14-0x000000007495E000-0x000000007495F000-memory.dmp

Filesize
4KB

Download
memory/5032-61-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download