mystic | e19e97a334ecb39058fd976080222a46cc2159e34c85df371a9eaf0088ee80eb

Analysis

max time kernel
133s
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 10:44

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General

Target

b62483116d18fcce423634c2d593e9a4337f6e491ba99627ad7d7030d97546b6.exe
Size

642KB
MD5

4b28b510d24ff62495814bd03cd127dd
SHA1

7b1886b629f47dfead2a7cc7fc86d741786ff51e
SHA256

b62483116d18fcce423634c2d593e9a4337f6e491ba99627ad7d7030d97546b6
SHA512

aad6de7433c9a68f6f8cc12566796fa5159d1345ee5d7d459cad671844e0fb138e22cc057e9ab4c6922c8dfefef5573f5d7a4b51a433461fc1659a12fb9cf88c
SSDEEP

12288:/Mrey90Ly/P4XcjJ3RbQpARnGwLgIljsS4/tNfg8nApf0jh:lyhwoJRbQ2dGOlj94/Dg8M0t

Score

10^/10

mystic smokeloader backdoor evasion persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 3 IoCs

resource	yara_rule
behavioral23/memory/4756-19-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral23/memory/4756-22-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral23/memory/4756-20-0x0000000000400000-0x0000000000433000-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

description	ioc	Process
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
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "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
3264	YL6Of87.exe
224	1lU34wa8.exe
4752	2Hi7634.exe
4868	3Fx71Vm.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\\\""	b62483116d18fcce423634c2d593e9a4337f6e491ba99627ad7d7030d97546b6.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\\\""	YL6Of87.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 224 set thread context of 3088	224	1lU34wa8.exe	87
PID 4752 set thread context of 4756	4752	2Hi7634.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	3Fx71Vm.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3Fx71Vm.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3Fx71Vm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3088	AppLaunch.exe
3088	AppLaunch.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3088	AppLaunch.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3812 wrote to memory of 3264	3812	b62483116d18fcce423634c2d593e9a4337f6e491ba99627ad7d7030d97546b6.exe	84
PID 3812 wrote to memory of 3264	3812	b62483116d18fcce423634c2d593e9a4337f6e491ba99627ad7d7030d97546b6.exe	84
PID 3812 wrote to memory of 3264	3812	b62483116d18fcce423634c2d593e9a4337f6e491ba99627ad7d7030d97546b6.exe	84
PID 3264 wrote to memory of 224	3264	YL6Of87.exe	85
PID 3264 wrote to memory of 224	3264	YL6Of87.exe	85
PID 3264 wrote to memory of 224	3264	YL6Of87.exe	85
PID 224 wrote to memory of 3932	224	1lU34wa8.exe	86
PID 224 wrote to memory of 3932	224	1lU34wa8.exe	86
PID 224 wrote to memory of 3932	224	1lU34wa8.exe	86
PID 224 wrote to memory of 3088	224	1lU34wa8.exe	87
PID 224 wrote to memory of 3088	224	1lU34wa8.exe	87
PID 224 wrote to memory of 3088	224	1lU34wa8.exe	87
PID 224 wrote to memory of 3088	224	1lU34wa8.exe	87
PID 224 wrote to memory of 3088	224	1lU34wa8.exe	87
PID 224 wrote to memory of 3088	224	1lU34wa8.exe	87
PID 224 wrote to memory of 3088	224	1lU34wa8.exe	87
PID 224 wrote to memory of 3088	224	1lU34wa8.exe	87
PID 3264 wrote to memory of 4752	3264	YL6Of87.exe	88
PID 3264 wrote to memory of 4752	3264	YL6Of87.exe	88
PID 3264 wrote to memory of 4752	3264	YL6Of87.exe	88
PID 4752 wrote to memory of 4756	4752	2Hi7634.exe	89
PID 4752 wrote to memory of 4756	4752	2Hi7634.exe	89
PID 4752 wrote to memory of 4756	4752	2Hi7634.exe	89
PID 4752 wrote to memory of 4756	4752	2Hi7634.exe	89
PID 4752 wrote to memory of 4756	4752	2Hi7634.exe	89
PID 4752 wrote to memory of 4756	4752	2Hi7634.exe	89
PID 4752 wrote to memory of 4756	4752	2Hi7634.exe	89
PID 4752 wrote to memory of 4756	4752	2Hi7634.exe	89
PID 4752 wrote to memory of 4756	4752	2Hi7634.exe	89
PID 4752 wrote to memory of 4756	4752	2Hi7634.exe	89
PID 3812 wrote to memory of 4868	3812	b62483116d18fcce423634c2d593e9a4337f6e491ba99627ad7d7030d97546b6.exe	90
PID 3812 wrote to memory of 4868	3812	b62483116d18fcce423634c2d593e9a4337f6e491ba99627ad7d7030d97546b6.exe	90
PID 3812 wrote to memory of 4868	3812	b62483116d18fcce423634c2d593e9a4337f6e491ba99627ad7d7030d97546b6.exe	90

C:\Users\Admin\AppData\Local\Temp\b62483116d18fcce423634c2d593e9a4337f6e491ba99627ad7d7030d97546b6.exe
"C:\Users\Admin\AppData\Local\Temp\b62483116d18fcce423634c2d593e9a4337f6e491ba99627ad7d7030d97546b6.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3812
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\YL6Of87.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\YL6Of87.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:3264
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1lU34wa8.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1lU34wa8.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:224
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:3932
  - - 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:3088
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Hi7634.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Hi7634.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:4752
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:4756
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3Fx71Vm.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3Fx71Vm.exe
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  PID:4868

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\3Fx71Vm.exe

Filesize
31KB

MD5
b9ada6602891d302eef7d59830e092d2

SHA1
5f52ef27154479cd23acbf32fdc7465eb08cbb90

SHA256
ae39dbb2ed6825ce38994c8d3851962662bb4474fbc2f10d38179d680082f039

SHA512
7b40555ce1a1af239edfe3026fdc01813182146cd3cbf47068e905ba5982005506fc6d30c22af2d0213048312471609bdab154b0540e9edf5cc3e9e2dc7a0fce

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\YL6Of87.exe

Filesize
518KB

MD5
870a09baa75399f7d1504126b4ea18df

SHA1
4f3e4014af549b8099fb4d4791ce0b976cd8ba39

SHA256
59ffc302494ff5179b53733a82b5f705cdef56be8021e244efb7624006fdfdab

SHA512
e8e74ddddd110a1970173cc7fe6e421f641d09ee3298ef793117483322e6ae980d46b538883e3f5987f61222f88adfdbabdaf4ad9430d337837e36859bf72df6

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1lU34wa8.exe

Filesize
869KB

MD5
e2d6208fdd703f4c0f73de20642dfe27

SHA1
0fc109b3ff16626d629449f10f8b079e7f52c1f0

SHA256
7c500cdf614bb593db0e4081fd182fa3d9f8952aecfb1bda2d5abfb71394e76a

SHA512
6e8a3525e0581724c8174144e6e687caa29f4c8532f7b5a7f6818eef94755d3375178aa982699c28de0faf0952f65d85940cead71545858556df1ab7d4a21518

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Hi7634.exe

Filesize
1.0MB

MD5
94da092e12117b622c5a575dfada9c19

SHA1
9cc1f33bcafc1c01d1b9d61745f0c79c4b2ba190

SHA256
27dbc14e4ce30fc9752a627ad83d2ded88a8307d0966bed4683d2013a3a59aa0

SHA512
4e37c83fadd01b54ef798dfcad192d2586c16c4f48dcddbcdd343fe05e31d46b7227447f00a31181cf31fe06b9fb0cc6875bf6928634f2cc74d397c759249da4

Download Submit
memory/3088-14-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3088-16-0x0000000074B4E000-0x0000000074B4F000-memory.dmp

Filesize
4KB

Download
memory/4756-19-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4756-22-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4756-20-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4868-26-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4868-28-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download