mystic | 9b80269950e0f1b633a8f97657fa8c4843d63cc1062890797edcbbcf58625520

Analysis

max time kernel
128s
max time network
101s
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

426e1b8066ed7b417a0887d9af5ab1436b8302f01a33910c8c64da68d5b06c18.exe
Size

652KB
MD5

a8b9734365073ce340b1123741d71abd
SHA1

ba40a124883de4244aa8c1c389e94ddb9fddead6
SHA256

426e1b8066ed7b417a0887d9af5ab1436b8302f01a33910c8c64da68d5b06c18
SHA512

0f34f2c85ea88f4a6b440889df26087036a8802d8ea04ba3a5a1ec3db4745007806778aa24a1b45bb2db1902b841fd35099081b55daa9576d2b79e5636eaa76a
SSDEEP

12288:8Mrcy9031jOhVjzy5AfppTmgmbdSqEfEFoGeKaHsUPkiD:AysWVfySppTmgcjqftrPkiD

Score

10^/10

mystic smokeloader backdoor evasion persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 3 IoCs

resource	yara_rule
behavioral5/memory/4532-18-0x0000000000400000-0x0000000000434000-memory.dmp	mystic_family
behavioral5/memory/4532-21-0x0000000000400000-0x0000000000434000-memory.dmp	mystic_family
behavioral5/memory/4532-19-0x0000000000400000-0x0000000000434000-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\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
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

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
348	Fo4qa29.exe
2072	1HG66Ze2.exe
3748	2qj8314.exe
3400	3QC27mb.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\\\""	426e1b8066ed7b417a0887d9af5ab1436b8302f01a33910c8c64da68d5b06c18.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\\\""	Fo4qa29.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2072 set thread context of 4500	2072	1HG66Ze2.exe	85
PID 3748 set thread context of 4532	3748	2qj8314.exe	87

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	3QC27mb.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3QC27mb.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3QC27mb.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4500	AppLaunch.exe
4500	AppLaunch.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4500	AppLaunch.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 112 wrote to memory of 348	112	426e1b8066ed7b417a0887d9af5ab1436b8302f01a33910c8c64da68d5b06c18.exe	83
PID 112 wrote to memory of 348	112	426e1b8066ed7b417a0887d9af5ab1436b8302f01a33910c8c64da68d5b06c18.exe	83
PID 112 wrote to memory of 348	112	426e1b8066ed7b417a0887d9af5ab1436b8302f01a33910c8c64da68d5b06c18.exe	83
PID 348 wrote to memory of 2072	348	Fo4qa29.exe	84
PID 348 wrote to memory of 2072	348	Fo4qa29.exe	84
PID 348 wrote to memory of 2072	348	Fo4qa29.exe	84
PID 2072 wrote to memory of 4500	2072	1HG66Ze2.exe	85
PID 2072 wrote to memory of 4500	2072	1HG66Ze2.exe	85
PID 2072 wrote to memory of 4500	2072	1HG66Ze2.exe	85
PID 2072 wrote to memory of 4500	2072	1HG66Ze2.exe	85
PID 2072 wrote to memory of 4500	2072	1HG66Ze2.exe	85
PID 2072 wrote to memory of 4500	2072	1HG66Ze2.exe	85
PID 2072 wrote to memory of 4500	2072	1HG66Ze2.exe	85
PID 2072 wrote to memory of 4500	2072	1HG66Ze2.exe	85
PID 348 wrote to memory of 3748	348	Fo4qa29.exe	86
PID 348 wrote to memory of 3748	348	Fo4qa29.exe	86
PID 348 wrote to memory of 3748	348	Fo4qa29.exe	86
PID 3748 wrote to memory of 4532	3748	2qj8314.exe	87
PID 3748 wrote to memory of 4532	3748	2qj8314.exe	87
PID 3748 wrote to memory of 4532	3748	2qj8314.exe	87
PID 3748 wrote to memory of 4532	3748	2qj8314.exe	87
PID 3748 wrote to memory of 4532	3748	2qj8314.exe	87
PID 3748 wrote to memory of 4532	3748	2qj8314.exe	87
PID 3748 wrote to memory of 4532	3748	2qj8314.exe	87
PID 3748 wrote to memory of 4532	3748	2qj8314.exe	87
PID 3748 wrote to memory of 4532	3748	2qj8314.exe	87
PID 3748 wrote to memory of 4532	3748	2qj8314.exe	87
PID 112 wrote to memory of 3400	112	426e1b8066ed7b417a0887d9af5ab1436b8302f01a33910c8c64da68d5b06c18.exe	88
PID 112 wrote to memory of 3400	112	426e1b8066ed7b417a0887d9af5ab1436b8302f01a33910c8c64da68d5b06c18.exe	88
PID 112 wrote to memory of 3400	112	426e1b8066ed7b417a0887d9af5ab1436b8302f01a33910c8c64da68d5b06c18.exe	88

C:\Users\Admin\AppData\Local\Temp\426e1b8066ed7b417a0887d9af5ab1436b8302f01a33910c8c64da68d5b06c18.exe
"C:\Users\Admin\AppData\Local\Temp\426e1b8066ed7b417a0887d9af5ab1436b8302f01a33910c8c64da68d5b06c18.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:112
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Fo4qa29.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Fo4qa29.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:348
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1HG66Ze2.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1HG66Ze2.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2072
  - - 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:4500
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2qj8314.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2qj8314.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:3748
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:4532
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3QC27mb.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3QC27mb.exe
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  PID:3400

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\3QC27mb.exe

Filesize
31KB

MD5
61b6b786efacea6912a815b7692dac72

SHA1
5a864261a958ba9355d0fa20741e149f70a7918d

SHA256
99f45274606fe0acdf6c4bddbe53bdb8a3fd4a329bea222426e0a1547a8ff61d

SHA512
164e3de7001b6a7c8cfe1694cc7d3fbf43e69a9d6bf31c30b411acf22bfb98e00dd8491eba9a754172069fc2edd0be59ea39ce489ebe6553f11ef07bcb6c5f3e

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Fo4qa29.exe

Filesize
528KB

MD5
f96632ad5ee676201c55b0218382157e

SHA1
2f57c77ea32769b52924056899028fbfb5aa4a12

SHA256
753e3b49d354b22afb771940598e5a459d157140c496fff1874e978755ff0325

SHA512
0dc9730fb1210a5cbfcd435f6a6a50d5920f6d8c9ef128919b5d53192ff5ae86a054c208bb248c2cb72caa64dd5ea853cc7429bf3dbaa06259f97f0699187a11

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1HG66Ze2.exe

Filesize
869KB

MD5
90a7fb448ebb8f342918c8650dd05df5

SHA1
d0bcec2d5576a34be3f4c0fd5f0bcdfdb94a29d5

SHA256
3701b6e633b701ec911cb1ba0cc786e848a4a35d062355edfa5799a3548ce78d

SHA512
c5e7a143fe61af01681a4b1cd5930f72dff03b88727252f655224c07619fc397be57a5662d65a2a4c46f6edd9561e84433823201b7d0478b184b4ccf8ed799c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2qj8314.exe

Filesize
1.0MB

MD5
7325f35f9a59903a210a5c41c2c74e67

SHA1
25ed8bda08cb3b91633641f6bab9e1e73b3460b9

SHA256
98891268879a8e945effc53f4d65e4d9b623d2088b2fc2b34676ebffe039d7bf

SHA512
c73dc673eaba673f542689e21b9811c36f13ec84cf7a4690d89b79a6a7102c4e281e6b2b45153f83ae9b23a8b0177d6d0868fc37d21ac14a2402aa3eed29acfb

Download Submit
memory/3400-24-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3400-26-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4500-14-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/4532-18-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4532-21-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4532-19-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download