mystic | 5e226d8262fc6a306a8623ff2317e80de04307b5a5893f24200377dfacb41830

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
22-05-2024 18:33

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General

Target

56b0ed98e3472c3ed4c501f9630c8e00fd98a17a99687541889c257dffc5d254.exe
Size

646KB
MD5

f6b5bede9b07bfce7ac3d693d5494761
SHA1

7433b82c21237a1a65994a7ae0843d5ee891ae92
SHA256

56b0ed98e3472c3ed4c501f9630c8e00fd98a17a99687541889c257dffc5d254
SHA512

485a0e0c14a0fdddf9936fbb65f5202989c20f707194bc2cd0af96a08ccc173f65089805aa1287dcdb9389f968f769b91b760f9c6bee379ea8b7822badb544c2
SSDEEP

12288:7Mruy90A+LXj+ipMEl92UTVK40hxLqrNuB5sZ75Ar+P9L:Vyy6ml92Ug4SGrNuBOZ72r+L

Score

10^/10

mystic smokeloader backdoor evasion persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 3 IoCs

resource	yara_rule
behavioral4/memory/4008-18-0x0000000000400000-0x0000000000434000-memory.dmp	mystic_family
behavioral4/memory/4008-22-0x0000000000400000-0x0000000000434000-memory.dmp	mystic_family
behavioral4/memory/4008-24-0x0000000000400000-0x0000000000434000-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\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
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

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
60	Ez6IT84.exe
548	1tX58Us5.exe
1820	2yc4542.exe
4772	3eg67fO.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\\\""	56b0ed98e3472c3ed4c501f9630c8e00fd98a17a99687541889c257dffc5d254.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\\\""	Ez6IT84.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 548 set thread context of 3872	548	1tX58Us5.exe	87
PID 1820 set thread context of 4008	1820	2yc4542.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	3eg67fO.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3eg67fO.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3eg67fO.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3872	AppLaunch.exe
3872	AppLaunch.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3872	AppLaunch.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1164 wrote to memory of 60	1164	56b0ed98e3472c3ed4c501f9630c8e00fd98a17a99687541889c257dffc5d254.exe	85
PID 1164 wrote to memory of 60	1164	56b0ed98e3472c3ed4c501f9630c8e00fd98a17a99687541889c257dffc5d254.exe	85
PID 1164 wrote to memory of 60	1164	56b0ed98e3472c3ed4c501f9630c8e00fd98a17a99687541889c257dffc5d254.exe	85
PID 60 wrote to memory of 548	60	Ez6IT84.exe	86
PID 60 wrote to memory of 548	60	Ez6IT84.exe	86
PID 60 wrote to memory of 548	60	Ez6IT84.exe	86
PID 548 wrote to memory of 3872	548	1tX58Us5.exe	87
PID 548 wrote to memory of 3872	548	1tX58Us5.exe	87
PID 548 wrote to memory of 3872	548	1tX58Us5.exe	87
PID 548 wrote to memory of 3872	548	1tX58Us5.exe	87
PID 548 wrote to memory of 3872	548	1tX58Us5.exe	87
PID 548 wrote to memory of 3872	548	1tX58Us5.exe	87
PID 548 wrote to memory of 3872	548	1tX58Us5.exe	87
PID 548 wrote to memory of 3872	548	1tX58Us5.exe	87
PID 60 wrote to memory of 1820	60	Ez6IT84.exe	88
PID 60 wrote to memory of 1820	60	Ez6IT84.exe	88
PID 60 wrote to memory of 1820	60	Ez6IT84.exe	88
PID 1820 wrote to memory of 4008	1820	2yc4542.exe	91
PID 1820 wrote to memory of 4008	1820	2yc4542.exe	91
PID 1820 wrote to memory of 4008	1820	2yc4542.exe	91
PID 1820 wrote to memory of 4008	1820	2yc4542.exe	91
PID 1820 wrote to memory of 4008	1820	2yc4542.exe	91
PID 1820 wrote to memory of 4008	1820	2yc4542.exe	91
PID 1820 wrote to memory of 4008	1820	2yc4542.exe	91
PID 1820 wrote to memory of 4008	1820	2yc4542.exe	91
PID 1820 wrote to memory of 4008	1820	2yc4542.exe	91
PID 1820 wrote to memory of 4008	1820	2yc4542.exe	91
PID 1164 wrote to memory of 4772	1164	56b0ed98e3472c3ed4c501f9630c8e00fd98a17a99687541889c257dffc5d254.exe	92
PID 1164 wrote to memory of 4772	1164	56b0ed98e3472c3ed4c501f9630c8e00fd98a17a99687541889c257dffc5d254.exe	92
PID 1164 wrote to memory of 4772	1164	56b0ed98e3472c3ed4c501f9630c8e00fd98a17a99687541889c257dffc5d254.exe	92

C:\Users\Admin\AppData\Local\Temp\56b0ed98e3472c3ed4c501f9630c8e00fd98a17a99687541889c257dffc5d254.exe
"C:\Users\Admin\AppData\Local\Temp\56b0ed98e3472c3ed4c501f9630c8e00fd98a17a99687541889c257dffc5d254.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1164
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Ez6IT84.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Ez6IT84.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:60
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1tX58Us5.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1tX58Us5.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:548
  - - 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:3872
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yc4542.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yc4542.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1820
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:4008
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3eg67fO.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3eg67fO.exe
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  PID:4772

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\3eg67fO.exe

Filesize
30KB

MD5
8183afb2622655cd9d9d743dcb21f07f

SHA1
76ee5e70b0c936ca1ddd4352ee9428f5797184e6

SHA256
ee7c1c77bca6eb42c882a643e9c8393d4ced0ed87a325d01a524f8060c47599c

SHA512
be7ef2a819b6b6d641dc453b7098993b8732e288a489a2f626d780269af0f26b678670d7b9e2129b384b83381a4bf5d3d3eaef86422a66ad60d0e29573e785c6

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Ez6IT84.exe

Filesize
521KB

MD5
10c805e74405d3464023dd14063d16a9

SHA1
eee591acd850842f39891253cd9e84a6de5c44bd

SHA256
e4add5510b46951dc8a7c0e13be23874795ad2ada12cd074e970110fb554befa

SHA512
cd5b1607141107c093ed2b21361e9798bdf0ad9eb449885d1a4fe8c9fb749a47be9f6b48f96fd6280f950da55d712af4aae0703ceaa09773c58918851af07927

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1tX58Us5.exe

Filesize
878KB

MD5
47bb163f5d535957ee17616d75ebdd09

SHA1
754f070513a61b90ba93a5b2ddf48d86effb4049

SHA256
ea71b32cb6f87f70a23a2e558aa956a4cab0ec73864d31f91b87bb4a6d7616d0

SHA512
aff63f8932e82486ceaf94cb3981d43d81c69d0c68741d700716d299b18d2002155ca3d875fbc69f0418dfaa13255cbcd0ee319e5dbc8d6898b394cff6a90909

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yc4542.exe

Filesize
1.1MB

MD5
bcd73b10030a7551081985b97bbeb320

SHA1
166b6963804ae79014bd8de0b29e4f80c8579396

SHA256
705923b98070517d048b894317bd086261f54631fc2b0aa5374d58cb18f52c87

SHA512
f14332402c84a1cc1edc6601dca2edb88de587fee65c7ec6f5b9de2eefa6c1b6d1930f65a52e9287471e4e4b8de3160b3e64053de861511f05be524aa17a9b96

Download Submit
memory/3872-14-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/4008-18-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4008-22-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4008-24-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4772-25-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4772-26-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download