mystic | 4ce71244da4dd5d9b0b7535c6b62aebf516adc87a36195170af93efa3a630b9f

Analysis

max time kernel
130s
max time network
104s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
23-05-2024 16:40

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General

Target

17123cde248bf04440dd66e0818e707111a27baaf0a0f8b46803653840d0f776.exe
Size

598KB
MD5

746ccb0a7421cb80e3a7a4bb3d11c266
SHA1

695061caa785833506535476e784d53a79f2b9cb
SHA256

17123cde248bf04440dd66e0818e707111a27baaf0a0f8b46803653840d0f776
SHA512

169a0e4cf0c4ca17e479c595494add7326f647d06944c8e5c29eff0ce267a3cd18154f1bbb56f59297a03d9efc87c156a147f842d8fcdc6b4efde4a0bcab298d
SSDEEP

12288:uMrYy906un5B6oTeRNKHPWbOc12l/7DMcSwKCNYhh+ZPmvXzamDCKpsS4bo:myeB6oTebsRU2wCU+F0WYCKpqo

Score

10^/10

mystic evasion persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 4 IoCs

resource	yara_rule
behavioral2/memory/3208-47-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral2/memory/3208-51-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral2/memory/3208-50-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral2/memory/3208-48-0x0000000000400000-0x0000000000428000-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	1UQ43Ep8.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	1UQ43Ep8.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	1UQ43Ep8.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	1UQ43Ep8.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	1UQ43Ep8.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	1UQ43Ep8.exe

Mystic
Mystic is an infostealer written in C++.
stealer mystic

Executes dropped EXE 2 IoCs

pid	Process
4132	1UQ43Ep8.exe
4952	2ij7658.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	1UQ43Ep8.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	1UQ43Ep8.exe

Adds Run key to start application 2 TTPs 1 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\\\""	17123cde248bf04440dd66e0818e707111a27baaf0a0f8b46803653840d0f776.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4952 set thread context of 3208	4952	2ij7658.exe	94

Program crash 1 IoCs

pid	pid_target	Process	procid_target
448	4952	WerFault.exe	90

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4132	1UQ43Ep8.exe
4132	1UQ43Ep8.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4132	1UQ43Ep8.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 4132	2316	17123cde248bf04440dd66e0818e707111a27baaf0a0f8b46803653840d0f776.exe	83
PID 2316 wrote to memory of 4132	2316	17123cde248bf04440dd66e0818e707111a27baaf0a0f8b46803653840d0f776.exe	83
PID 2316 wrote to memory of 4132	2316	17123cde248bf04440dd66e0818e707111a27baaf0a0f8b46803653840d0f776.exe	83
PID 2316 wrote to memory of 4952	2316	17123cde248bf04440dd66e0818e707111a27baaf0a0f8b46803653840d0f776.exe	90
PID 2316 wrote to memory of 4952	2316	17123cde248bf04440dd66e0818e707111a27baaf0a0f8b46803653840d0f776.exe	90
PID 2316 wrote to memory of 4952	2316	17123cde248bf04440dd66e0818e707111a27baaf0a0f8b46803653840d0f776.exe	90
PID 4952 wrote to memory of 2416	4952	2ij7658.exe	92
PID 4952 wrote to memory of 2416	4952	2ij7658.exe	92
PID 4952 wrote to memory of 2416	4952	2ij7658.exe	92
PID 4952 wrote to memory of 1376	4952	2ij7658.exe	93
PID 4952 wrote to memory of 1376	4952	2ij7658.exe	93
PID 4952 wrote to memory of 1376	4952	2ij7658.exe	93
PID 4952 wrote to memory of 3208	4952	2ij7658.exe	94
PID 4952 wrote to memory of 3208	4952	2ij7658.exe	94
PID 4952 wrote to memory of 3208	4952	2ij7658.exe	94
PID 4952 wrote to memory of 3208	4952	2ij7658.exe	94
PID 4952 wrote to memory of 3208	4952	2ij7658.exe	94
PID 4952 wrote to memory of 3208	4952	2ij7658.exe	94
PID 4952 wrote to memory of 3208	4952	2ij7658.exe	94
PID 4952 wrote to memory of 3208	4952	2ij7658.exe	94
PID 4952 wrote to memory of 3208	4952	2ij7658.exe	94
PID 4952 wrote to memory of 3208	4952	2ij7658.exe	94

C:\Users\Admin\AppData\Local\Temp\17123cde248bf04440dd66e0818e707111a27baaf0a0f8b46803653840d0f776.exe
"C:\Users\Admin\AppData\Local\Temp\17123cde248bf04440dd66e0818e707111a27baaf0a0f8b46803653840d0f776.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2316
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1UQ43Ep8.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1UQ43Ep8.exe
  2⤵
  - Modifies Windows Defender Real-time Protection settings
  - Executes dropped EXE
  - Windows security modification
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4132
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2ij7658.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2ij7658.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4952
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:2416
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:1376
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:3208
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4952 -s 616
    3⤵
    - Program crash
    PID:448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4952 -ip 4952
1⤵
PID:4656

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1UQ43Ep8.exe

Filesize
192KB

MD5
8904f85abd522c7d0cb5789d9583ccff

SHA1
5b34d8595b37c9e1fb9682b06dc5228efe07f0c6

SHA256
7624b62fe97c8e370c82bc86f69c2f627328e701ce1f3d9bed92a1e5fe11fd7f

SHA512
04dd0c4e612b6287af6a655425085d687538d756dcd639ecb6c62bcdafddde52c56ae305a6240ee1329a95d9cc59dee6de5000d273a5a560ad1adc3284e00e12

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2ij7658.exe

Filesize
1.4MB

MD5
384dc20ed3fd519b46878f64d2507f99

SHA1
77c8d8bf4606f502a2ec5e4723c44b3929466a7e

SHA256
e03b24ac0cb68e61dd2a25a6a9cd4468ad92184007fcfe7ac30e90a1b129198b

SHA512
23d5072af839914f83ffed80442b8e1034bdc9e5523f804b6184dd065b20cbe67ecd773c6a4d389d294ada4466917d2cc7949728baca7e25d41d6e67b94011f0

Download Submit
memory/3208-48-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3208-50-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3208-51-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3208-47-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4132-26-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/4132-41-0x0000000074830000-0x0000000074FE0000-memory.dmp

Filesize
7.7MB

Download
memory/4132-38-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/4132-36-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/4132-40-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/4132-32-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/4132-30-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/4132-28-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/4132-12-0x0000000074830000-0x0000000074FE0000-memory.dmp

Filesize
7.7MB

Download
memory/4132-24-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/4132-22-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/4132-34-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/4132-20-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/4132-18-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/4132-16-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/4132-14-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/4132-13-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/4132-43-0x0000000074830000-0x0000000074FE0000-memory.dmp

Filesize
7.7MB

Download
memory/4132-11-0x0000000004990000-0x00000000049AC000-memory.dmp

Filesize
112KB

Download
memory/4132-9-0x00000000049D0000-0x0000000004F74000-memory.dmp

Filesize
5.6MB

Download
memory/4132-10-0x0000000074830000-0x0000000074FE0000-memory.dmp

Filesize
7.7MB

Download
memory/4132-8-0x0000000002250000-0x000000000226E000-memory.dmp

Filesize
120KB

Download
memory/4132-7-0x000000007483E000-0x000000007483F000-memory.dmp

Filesize
4KB

Download