mystic | 92023f346ccc819d9c52da2af751cda1bc5396b5d745c68d99d1d2ff99db093a

Analysis

max time kernel
134s
max time network
130s
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, 10:08

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General

Target

23530bfa27653b3a30a5c3778bc7c58fac12efe736252f4527f831347afec4e2.exe
Size

656KB
MD5

1edad7173ff4980ba01132dde4b1acf6
SHA1

0dc835fef444b8ac27f4eb977367ad36969360e4
SHA256

23530bfa27653b3a30a5c3778bc7c58fac12efe736252f4527f831347afec4e2
SHA512

048db62ffae6ea5b221ab7d7e3b9b549fac812c9eef01022d63e9a83cc4e5833611d1151724a1c592369b027a73dd7f480c0f622c435b7ac2088029162c0ce1f
SSDEEP

12288:OMr6y90+DlfYNUo/MORd2i5HBOxPghpdfdE9vNsnr3PLL8t23/O:0yRDlZwRdfhIghnfyzsr338t22

Score

10^/10

mystic smokeloader backdoor evasion persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 3 IoCs

resource	yara_rule
behavioral3/memory/3484-18-0x0000000000400000-0x0000000000434000-memory.dmp	mystic_family
behavioral3/memory/3484-19-0x0000000000400000-0x0000000000434000-memory.dmp	mystic_family
behavioral3/memory/3484-21-0x0000000000400000-0x0000000000434000-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\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
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "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
2788	Wn9cX83.exe
1568	1QU10Eb1.exe
3424	2kP8330.exe
1964	3Bb37EV.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\\\""	23530bfa27653b3a30a5c3778bc7c58fac12efe736252f4527f831347afec4e2.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\\\""	Wn9cX83.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1568 set thread context of 4028	1568	1QU10Eb1.exe	96
PID 3424 set thread context of 3484	3424	2kP8330.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 opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3Bb37EV.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3Bb37EV.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3Bb37EV.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4028	AppLaunch.exe
4028	AppLaunch.exe
4028	AppLaunch.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4028	AppLaunch.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2060 wrote to memory of 2788	2060	23530bfa27653b3a30a5c3778bc7c58fac12efe736252f4527f831347afec4e2.exe	92
PID 2060 wrote to memory of 2788	2060	23530bfa27653b3a30a5c3778bc7c58fac12efe736252f4527f831347afec4e2.exe	92
PID 2060 wrote to memory of 2788	2060	23530bfa27653b3a30a5c3778bc7c58fac12efe736252f4527f831347afec4e2.exe	92
PID 2788 wrote to memory of 1568	2788	Wn9cX83.exe	93
PID 2788 wrote to memory of 1568	2788	Wn9cX83.exe	93
PID 2788 wrote to memory of 1568	2788	Wn9cX83.exe	93
PID 1568 wrote to memory of 4028	1568	1QU10Eb1.exe	96
PID 1568 wrote to memory of 4028	1568	1QU10Eb1.exe	96
PID 1568 wrote to memory of 4028	1568	1QU10Eb1.exe	96
PID 1568 wrote to memory of 4028	1568	1QU10Eb1.exe	96
PID 1568 wrote to memory of 4028	1568	1QU10Eb1.exe	96
PID 1568 wrote to memory of 4028	1568	1QU10Eb1.exe	96
PID 1568 wrote to memory of 4028	1568	1QU10Eb1.exe	96
PID 1568 wrote to memory of 4028	1568	1QU10Eb1.exe	96
PID 2788 wrote to memory of 3424	2788	Wn9cX83.exe	97
PID 2788 wrote to memory of 3424	2788	Wn9cX83.exe	97
PID 2788 wrote to memory of 3424	2788	Wn9cX83.exe	97
PID 3424 wrote to memory of 4024	3424	2kP8330.exe	104
PID 3424 wrote to memory of 4024	3424	2kP8330.exe	104
PID 3424 wrote to memory of 4024	3424	2kP8330.exe	104
PID 3424 wrote to memory of 3484	3424	2kP8330.exe	105
PID 3424 wrote to memory of 3484	3424	2kP8330.exe	105
PID 3424 wrote to memory of 3484	3424	2kP8330.exe	105
PID 3424 wrote to memory of 3484	3424	2kP8330.exe	105
PID 3424 wrote to memory of 3484	3424	2kP8330.exe	105
PID 3424 wrote to memory of 3484	3424	2kP8330.exe	105
PID 3424 wrote to memory of 3484	3424	2kP8330.exe	105
PID 3424 wrote to memory of 3484	3424	2kP8330.exe	105
PID 3424 wrote to memory of 3484	3424	2kP8330.exe	105
PID 3424 wrote to memory of 3484	3424	2kP8330.exe	105
PID 2060 wrote to memory of 1964	2060	23530bfa27653b3a30a5c3778bc7c58fac12efe736252f4527f831347afec4e2.exe	106
PID 2060 wrote to memory of 1964	2060	23530bfa27653b3a30a5c3778bc7c58fac12efe736252f4527f831347afec4e2.exe	106
PID 2060 wrote to memory of 1964	2060	23530bfa27653b3a30a5c3778bc7c58fac12efe736252f4527f831347afec4e2.exe	106

C:\Users\Admin\AppData\Local\Temp\23530bfa27653b3a30a5c3778bc7c58fac12efe736252f4527f831347afec4e2.exe
"C:\Users\Admin\AppData\Local\Temp\23530bfa27653b3a30a5c3778bc7c58fac12efe736252f4527f831347afec4e2.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2060
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Wn9cX83.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Wn9cX83.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2788
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1QU10Eb1.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1QU10Eb1.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1568
  - - 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:4028
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2kP8330.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2kP8330.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:3424
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:4024
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:3484
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3Bb37EV.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3Bb37EV.exe
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  PID:1964

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4040,i,10373433614523925616,13586256558317053467,262144 --variations-seed-version --mojo-platform-channel-handle=4204 /prefetch:8
1⤵
PID:2872

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\3Bb37EV.exe

Filesize
30KB

MD5
72a1beab7e25150dc389a7735c275917

SHA1
c2eadfcd84082c852804ad34f3967cdac104bf96

SHA256
e545a32a5211f8dd7ac8694c1dc93fb049edcc4d1d624f83010b736b8785208d

SHA512
d392f36127d508683209dbee64b95834e28a3cdc53251a5a6188afdbacb586356e88bdd3c5a35abe6a60bf43d700f828a65e167b61ddde3d0488a2ac9d1aa599

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Wn9cX83.exe

Filesize
532KB

MD5
a3b074bca01c4eb504ec425a7a219f70

SHA1
48106bf7a3124abc27288753bbe216db704cfb45

SHA256
255bf56afc039ce59fb6aa71dca65b1bbab471c2a7e160be50a169909c02d4b2

SHA512
594abeb58b95d52fcdc95c6bdd26edc1517070fb16e197a72117b79d158269479a86ca65f8a10639bf4ffdab19445df4817c64774b1ecc85c25218a8b451dc69

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1QU10Eb1.exe

Filesize
891KB

MD5
e71702dca7c23a726116ad7aa0eb542f

SHA1
69fe9acba43a83c54f507c988609defe29ec5395

SHA256
18ed2d9d6e1f63a39660e40406b9f3934f9be7cc554c270760b7b81b32caaaee

SHA512
4f993b0ac5757d6b632c6476e5772ea704617356b654ebcac6975b768b44b69629418b8f932640069fe45508089dea319cccda43bd75504225b36071fc8ce667

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2kP8330.exe

Filesize
1.1MB

MD5
e5afaf94f723f5143c15c85e37e5d6d6

SHA1
2856583521c5ba5e324a64f479d8a16e59b0111d

SHA256
e377051ea811bfc9c4d9d3363c2485842662640e5ab13ca6a30f0fcfcde0503d

SHA512
045d133c3f1ff1f205ce5c3a3de659a1fd7dd1ad7cb0dbbe76bd3b9be7a776c5fa0fcf3b4672e1c932c7ccce2a69a1b7166a5751cd8382bd82f19e8e698010ab

Download Submit
memory/1964-25-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1964-26-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3484-18-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3484-19-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3484-21-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4028-14-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download