mystic | 9b80269950e0f1b633a8f97657fa8c4843d63cc1062890797edcbbcf58625520

Analysis

max time kernel
149s
max time network
154s
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 09:42

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General

Target

1bd70f5afcc29724401d52710f012058d999560c75bde3fd609f66ffc0bd9720.exe
Size

655KB
MD5

9e3b491b79a3f531499f4c5b9c6e4181
SHA1

e4af677226d01e5bf1a05cb8e06599ebac84d82e
SHA256

1bd70f5afcc29724401d52710f012058d999560c75bde3fd609f66ffc0bd9720
SHA512

99ed75c1d7731e032ce4f7c85df8946d2830f00004d079763fd96da5a443dca4cf9219df1889a550c4cc1fc630916309601507da5dc44e7189a19291f7237275
SSDEEP

12288:OMrHy90Ur0MAYbIdHpBhA+sZlVmzWVvExD4ipCDU0pjFTW:Jy/r9AY0hp/BYlQg9D3dpW

Score

10^/10

mystic smokeloader backdoor evasion persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 3 IoCs

resource	yara_rule
behavioral1/memory/3912-18-0x0000000000400000-0x0000000000434000-memory.dmp	mystic_family
behavioral1/memory/3912-20-0x0000000000400000-0x0000000000434000-memory.dmp	mystic_family
behavioral1/memory/3912-21-0x0000000000400000-0x0000000000434000-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\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
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

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
2408	JX0PL95.exe
5096	1lw48nR0.exe
1868	2Qv1983.exe
1924	3EF28kI.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\\\""	1bd70f5afcc29724401d52710f012058d999560c75bde3fd609f66ffc0bd9720.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\\\""	JX0PL95.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5096 set thread context of 2668	5096	1lw48nR0.exe	85
PID 1868 set thread context of 3912	1868	2Qv1983.exe	89

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	3EF28kI.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3EF28kI.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3EF28kI.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2668	AppLaunch.exe
2668	AppLaunch.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2668	AppLaunch.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2712 wrote to memory of 2408	2712	1bd70f5afcc29724401d52710f012058d999560c75bde3fd609f66ffc0bd9720.exe	83
PID 2712 wrote to memory of 2408	2712	1bd70f5afcc29724401d52710f012058d999560c75bde3fd609f66ffc0bd9720.exe	83
PID 2712 wrote to memory of 2408	2712	1bd70f5afcc29724401d52710f012058d999560c75bde3fd609f66ffc0bd9720.exe	83
PID 2408 wrote to memory of 5096	2408	JX0PL95.exe	84
PID 2408 wrote to memory of 5096	2408	JX0PL95.exe	84
PID 2408 wrote to memory of 5096	2408	JX0PL95.exe	84
PID 5096 wrote to memory of 2668	5096	1lw48nR0.exe	85
PID 5096 wrote to memory of 2668	5096	1lw48nR0.exe	85
PID 5096 wrote to memory of 2668	5096	1lw48nR0.exe	85
PID 5096 wrote to memory of 2668	5096	1lw48nR0.exe	85
PID 5096 wrote to memory of 2668	5096	1lw48nR0.exe	85
PID 5096 wrote to memory of 2668	5096	1lw48nR0.exe	85
PID 5096 wrote to memory of 2668	5096	1lw48nR0.exe	85
PID 5096 wrote to memory of 2668	5096	1lw48nR0.exe	85
PID 2408 wrote to memory of 1868	2408	JX0PL95.exe	86
PID 2408 wrote to memory of 1868	2408	JX0PL95.exe	86
PID 2408 wrote to memory of 1868	2408	JX0PL95.exe	86
PID 1868 wrote to memory of 3912	1868	2Qv1983.exe	89
PID 1868 wrote to memory of 3912	1868	2Qv1983.exe	89
PID 1868 wrote to memory of 3912	1868	2Qv1983.exe	89
PID 1868 wrote to memory of 3912	1868	2Qv1983.exe	89
PID 1868 wrote to memory of 3912	1868	2Qv1983.exe	89
PID 1868 wrote to memory of 3912	1868	2Qv1983.exe	89
PID 1868 wrote to memory of 3912	1868	2Qv1983.exe	89
PID 1868 wrote to memory of 3912	1868	2Qv1983.exe	89
PID 1868 wrote to memory of 3912	1868	2Qv1983.exe	89
PID 1868 wrote to memory of 3912	1868	2Qv1983.exe	89
PID 2712 wrote to memory of 1924	2712	1bd70f5afcc29724401d52710f012058d999560c75bde3fd609f66ffc0bd9720.exe	90
PID 2712 wrote to memory of 1924	2712	1bd70f5afcc29724401d52710f012058d999560c75bde3fd609f66ffc0bd9720.exe	90
PID 2712 wrote to memory of 1924	2712	1bd70f5afcc29724401d52710f012058d999560c75bde3fd609f66ffc0bd9720.exe	90

C:\Users\Admin\AppData\Local\Temp\1bd70f5afcc29724401d52710f012058d999560c75bde3fd609f66ffc0bd9720.exe
"C:\Users\Admin\AppData\Local\Temp\1bd70f5afcc29724401d52710f012058d999560c75bde3fd609f66ffc0bd9720.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2712
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\JX0PL95.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\JX0PL95.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2408
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1lw48nR0.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1lw48nR0.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:5096
  - - 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:2668
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Qv1983.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Qv1983.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1868
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:3912
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3EF28kI.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3EF28kI.exe
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  PID:1924

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\3EF28kI.exe

Filesize
30KB

MD5
86f62a1fd6fd95f4d0e2262307d3d9a9

SHA1
0c59e7ae611f226dce5988f23a74aa31529c524a

SHA256
7a54070f8e30df9edd70154d32fc8e5997dce5e1802d75e86c22daabe2a87d52

SHA512
638f1f82f1e9a8d92eb64afe6d190e2652bc6e8bd890a179e3c0fdb38bfaeb6644a1050bb5f99e3825ae3911cd7d3f06280aade3e28cd3ee949a44137b786db3

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\JX0PL95.exe

Filesize
531KB

MD5
dddbf2ebcb633582ee6400dd36b16bc0

SHA1
d2b2b3ba8c39bdd8dfa3041cdb0d7d9d57549ffe

SHA256
e35e6bdfa682b576316a16000c194ac3a7856192342fc40d70773a06daee77ad

SHA512
165977675dcbe20b9a650473106fb27195620c65633fddf01d938ceaba1605a0fe876d491ac1c07b4d7f3f05827b9a04a41f50d4bc304a3f0d20b3c3f844819f

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1lw48nR0.exe

Filesize
886KB

MD5
c45eb38302380e03ba02613950e5c420

SHA1
2abe960a779f5c5872add598fb335a10df509a14

SHA256
245670631da5614bfa5a92db4fa6d89635afaa10086e73dc61c58ac72877a97f

SHA512
938d01e9f1af55f2ad062688003d8528032df6652b28350a7ef8eaea5a99d3366a88b08dae7df112c464797a213b9bd77f530820f8663e35076403562251723d

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Qv1983.exe

Filesize
1.1MB

MD5
0c0ee01ac2b670b435d716e940e01844

SHA1
ffffe6ee4dece8a91a8467c50c7805c2e5a7fbb4

SHA256
d27fd39ff22830da319a54bad938bcccbc62e5a71cd07e3deb297e5a2673b613

SHA512
62ab2c20722f17e0c1d09e323973d9d434de6c711930325e7a0ddcb949531074e4ced1223b9379f866c200f0eb00b40836b98dc95acafb06955f0d7a80d7f8ba

Download Submit
memory/1924-25-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1924-26-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2668-14-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3912-18-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3912-20-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3912-21-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download