mystic | 08b492e2ef412ad0f04eb52178c9a06b0248d9d7d8e59a0fb2d49a9378adce09

Analysis

max time kernel
95s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-11-2024 03:40

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General

Target

08b492e2ef412ad0f04eb52178c9a06b0248d9d7d8e59a0fb2d49a9378adce09N.exe
Size

725KB
MD5

e25e31ff96455ffe53549bd2dd9fc220
SHA1

1ca7d36457a362d74c3630efdc5301a918a6d007
SHA256

08b492e2ef412ad0f04eb52178c9a06b0248d9d7d8e59a0fb2d49a9378adce09
SHA512

45c041f934604a0cb5ade841493bb0f1ca863883a0e070b7c305b61710f8a796078745711bcd8e114d3abd6b392d642beab93d19575a48b7e9468fadc93dd334
SSDEEP

12288:rMr5y90YHQCIGFvG7Xk6FvogPXvK8ZiqOBjKmPmrshrgXEIALWeMF5nNwas:iyNHQCR+XkOogPXvHknq8QEI0Wv3s

Score

10^/10

mystic smokeloader backdoor discovery evasion persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 3 IoCs

resource	yara_rule
behavioral1/memory/2112-56-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral1/memory/2112-59-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral1/memory/2112-57-0x0000000000400000-0x0000000000433000-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
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	1Ti99yL5.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	1Ti99yL5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	1Ti99yL5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	1Ti99yL5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	1Ti99yL5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	1Ti99yL5.exe

Mystic
Mystic is an infostealer written in C++.
stealer mystic
Mystic family
mystic
SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Smokeloader family
smokeloader

Executes dropped EXE 4 IoCs

pid	Process
5068	Mc8Ux90.exe
2300	1Ti99yL5.exe
5048	2Bt6159.exe
3804	3As34IC.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	1Ti99yL5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	1Ti99yL5.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\\\""	08b492e2ef412ad0f04eb52178c9a06b0248d9d7d8e59a0fb2d49a9378adce09N.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\\\""	Mc8Ux90.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5048 set thread context of 2112	5048	2Bt6159.exe	102
PID 3804 set thread context of 4604	3804	3As34IC.exe	108

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3124	5048	WerFault.exe	100
3904	3804	WerFault.exe	106

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1Ti99yL5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2Bt6159.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AppLaunch.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3As34IC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AppLaunch.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	08b492e2ef412ad0f04eb52178c9a06b0248d9d7d8e59a0fb2d49a9378adce09N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Mc8Ux90.exe

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2300	1Ti99yL5.exe
2300	1Ti99yL5.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2300	1Ti99yL5.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 4916 wrote to memory of 5068	4916	08b492e2ef412ad0f04eb52178c9a06b0248d9d7d8e59a0fb2d49a9378adce09N.exe	83
PID 4916 wrote to memory of 5068	4916	08b492e2ef412ad0f04eb52178c9a06b0248d9d7d8e59a0fb2d49a9378adce09N.exe	83
PID 4916 wrote to memory of 5068	4916	08b492e2ef412ad0f04eb52178c9a06b0248d9d7d8e59a0fb2d49a9378adce09N.exe	83
PID 5068 wrote to memory of 2300	5068	Mc8Ux90.exe	84
PID 5068 wrote to memory of 2300	5068	Mc8Ux90.exe	84
PID 5068 wrote to memory of 2300	5068	Mc8Ux90.exe	84
PID 5068 wrote to memory of 5048	5068	Mc8Ux90.exe	100
PID 5068 wrote to memory of 5048	5068	Mc8Ux90.exe	100
PID 5068 wrote to memory of 5048	5068	Mc8Ux90.exe	100
PID 5048 wrote to memory of 2112	5048	2Bt6159.exe	102
PID 5048 wrote to memory of 2112	5048	2Bt6159.exe	102
PID 5048 wrote to memory of 2112	5048	2Bt6159.exe	102
PID 5048 wrote to memory of 2112	5048	2Bt6159.exe	102
PID 5048 wrote to memory of 2112	5048	2Bt6159.exe	102
PID 5048 wrote to memory of 2112	5048	2Bt6159.exe	102
PID 5048 wrote to memory of 2112	5048	2Bt6159.exe	102
PID 5048 wrote to memory of 2112	5048	2Bt6159.exe	102
PID 5048 wrote to memory of 2112	5048	2Bt6159.exe	102
PID 5048 wrote to memory of 2112	5048	2Bt6159.exe	102
PID 4916 wrote to memory of 3804	4916	08b492e2ef412ad0f04eb52178c9a06b0248d9d7d8e59a0fb2d49a9378adce09N.exe	106
PID 4916 wrote to memory of 3804	4916	08b492e2ef412ad0f04eb52178c9a06b0248d9d7d8e59a0fb2d49a9378adce09N.exe	106
PID 4916 wrote to memory of 3804	4916	08b492e2ef412ad0f04eb52178c9a06b0248d9d7d8e59a0fb2d49a9378adce09N.exe	106
PID 3804 wrote to memory of 2152	3804	3As34IC.exe	107
PID 3804 wrote to memory of 2152	3804	3As34IC.exe	107
PID 3804 wrote to memory of 2152	3804	3As34IC.exe	107
PID 3804 wrote to memory of 4604	3804	3As34IC.exe	108
PID 3804 wrote to memory of 4604	3804	3As34IC.exe	108
PID 3804 wrote to memory of 4604	3804	3As34IC.exe	108
PID 3804 wrote to memory of 4604	3804	3As34IC.exe	108
PID 3804 wrote to memory of 4604	3804	3As34IC.exe	108
PID 3804 wrote to memory of 4604	3804	3As34IC.exe	108

C:\Users\Admin\AppData\Local\Temp\08b492e2ef412ad0f04eb52178c9a06b0248d9d7d8e59a0fb2d49a9378adce09N.exe
"C:\Users\Admin\AppData\Local\Temp\08b492e2ef412ad0f04eb52178c9a06b0248d9d7d8e59a0fb2d49a9378adce09N.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4916
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Mc8Ux90.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Mc8Ux90.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5068
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Ti99yL5.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Ti99yL5.exe
    3⤵
    - Modifies Windows Defender Real-time Protection settings
    - Executes dropped EXE
    - Windows security modification
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2300
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Bt6159.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Bt6159.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5048
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      System Location Discovery: System Language Discovery
      PID:2112
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 592
      4⤵
      Program crash
      PID:3124
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3As34IC.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3As34IC.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3804
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:2152
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Checks SCSI registry key(s)
    PID:4604
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3804 -s 600
    3⤵
    - Program crash
    PID:3904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 5048 -ip 5048
1⤵
PID:4584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 3804 -ip 3804
1⤵
PID:3348

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3As34IC.exe

Filesize
271KB

MD5
d6ccfe22c5a8435e7af7f2f08616965f

SHA1
ec2b0ef2fed8811b96d2e5d8206296f185df3020

SHA256
7a837cf4806c6710c5589985ca0c5f91eca92eb2aed7fa28b9dd48eb82c2dbf7

SHA512
5b251c0be1e14c5f44dfc90d9bd4597086cf539dbac96829a8e23b0a38a46a3bfe5559a1986bc60a2f009e0da490c3c24244d2ad98d06ff0523e8dab9a110a78

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Mc8Ux90.exe

Filesize
479KB

MD5
627f80f23b8856f9720363ae8d9612b8

SHA1
073955f1cb97e3780e0eeafb51ad7f026a8e9ab4

SHA256
39fc354fcb0bea6b43af2506b55b9162fbe6abebc17d23896b94b27502d00473

SHA512
3f69a3bb9e6d3e4a2a80f8f693d6522a36dc018020a6f495e240b3afb129be8aef8d2b1ebcc4442a9401ef89a17cd39a49ee7aa4f874bb3169a6e799a3b643d8

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Ti99yL5.exe

Filesize
194KB

MD5
35d718538c3e1346cb4fcf54aaa0f141

SHA1
234c0aa0465c27c190a83936e8e3aa3c4b991224

SHA256
97e62bfa90aca06c595fb150e36f56b4a285f58cc072b8c458ae79805523fc36

SHA512
4bcf5cabe93ec54608ccb95d80822f411bb32c2746be609873a493045913fb53e0a953e75f82dfe620d661f049437da7a70d34995dc915bb0b09426e97f0aec3

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Bt6159.exe

Filesize
423KB

MD5
8d701580997ed55c098c571e5b7ee310

SHA1
043285846ca1ee549464ad3734fd0b51296f0356

SHA256
0848f926a0d9da09f819fd2d54b68f2f8cd643af14106fb1723bbcd844db11f8

SHA512
25ab5da792a3d5b6f2ab14ad0b60d0f25a2bed42ea1e2d4490396a0b138e9656a80aa262d357b82ba535575d8d7f3207faa19352adcbf317a0ca99efab6ac3d6

Download Submit
memory/2112-57-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/2112-59-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/2112-56-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/2300-36-0x0000000004AE0000-0x0000000004AF6000-memory.dmp

Filesize
88KB

Download
memory/2300-24-0x0000000004AE0000-0x0000000004AF6000-memory.dmp

Filesize
88KB

Download
memory/2300-32-0x0000000004AE0000-0x0000000004AF6000-memory.dmp

Filesize
88KB

Download
memory/2300-48-0x0000000004AE0000-0x0000000004AF6000-memory.dmp

Filesize
88KB

Download
memory/2300-46-0x0000000004AE0000-0x0000000004AF6000-memory.dmp

Filesize
88KB

Download
memory/2300-44-0x0000000004AE0000-0x0000000004AF6000-memory.dmp

Filesize
88KB

Download
memory/2300-42-0x0000000004AE0000-0x0000000004AF6000-memory.dmp

Filesize
88KB

Download
memory/2300-40-0x0000000004AE0000-0x0000000004AF6000-memory.dmp

Filesize
88KB

Download
memory/2300-38-0x0000000004AE0000-0x0000000004AF6000-memory.dmp

Filesize
88KB

Download
memory/2300-19-0x0000000074120000-0x00000000748D0000-memory.dmp

Filesize
7.7MB

Download
memory/2300-30-0x0000000004AE0000-0x0000000004AF6000-memory.dmp

Filesize
88KB

Download
memory/2300-28-0x0000000004AE0000-0x0000000004AF6000-memory.dmp

Filesize
88KB

Download
memory/2300-26-0x0000000004AE0000-0x0000000004AF6000-memory.dmp

Filesize
88KB

Download
memory/2300-20-0x0000000074120000-0x00000000748D0000-memory.dmp

Filesize
7.7MB

Download
memory/2300-22-0x0000000004AE0000-0x0000000004AF6000-memory.dmp

Filesize
88KB

Download
memory/2300-21-0x0000000004AE0000-0x0000000004AF6000-memory.dmp

Filesize
88KB

Download
memory/2300-34-0x0000000004AE0000-0x0000000004AF6000-memory.dmp

Filesize
88KB

Download
memory/2300-49-0x000000007412E000-0x000000007412F000-memory.dmp

Filesize
4KB

Download
memory/2300-50-0x0000000074120000-0x00000000748D0000-memory.dmp

Filesize
7.7MB

Download
memory/2300-52-0x0000000074120000-0x00000000748D0000-memory.dmp

Filesize
7.7MB

Download
memory/2300-18-0x0000000004AE0000-0x0000000004AFC000-memory.dmp

Filesize
112KB

Download
memory/2300-17-0x0000000004B40000-0x00000000050E4000-memory.dmp

Filesize
5.6MB

Download
memory/2300-16-0x0000000074120000-0x00000000748D0000-memory.dmp

Filesize
7.7MB

Download
memory/2300-15-0x00000000025C0000-0x00000000025DE000-memory.dmp

Filesize
120KB

Download
memory/2300-14-0x000000007412E000-0x000000007412F000-memory.dmp

Filesize
4KB

Download
memory/4604-63-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download