mystic | c35b2a353f3f737fd5d522bda8150c7fe11a4c4773ad1702d174b480462784c6

Analysis

max time kernel
136s
max time network
105s
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 17:26

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General

Target

7d2d45b5937ea290b091c8ccd70073bfedc220269f4ab6c1833823d1678ed166.exe
Size

598KB
MD5

44d2059628937296edf7cf7ab9a0756b
SHA1

b1d514de0cd2845331038cb4f3ba1d94957ce453
SHA256

7d2d45b5937ea290b091c8ccd70073bfedc220269f4ab6c1833823d1678ed166
SHA512

62d89487ffafac8c0c81beec67ffb131a854ff072844bb33cded80c36915c5f869e8abbca0f62968edfc8be0c3baf7a77dbac0895b6df07cc454c26edaedf4af
SSDEEP

12288:OMrNy907un5B6oTC7L0t9WP+C5dGBIquDi4deB2pCIWCH/zfdyy:/yJB6oTEL0T++k0oy25yy

Score

10^/10

mystic evasion persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 4 IoCs

resource	yara_rule
behavioral13/memory/4416-47-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral13/memory/4416-51-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral13/memory/4416-48-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral13/memory/4416-49-0x0000000000400000-0x0000000000428000-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
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	q5653655.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	q5653655.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	q5653655.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	q5653655.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	q5653655.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	q5653655.exe

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

Executes dropped EXE 2 IoCs

pid	Process
2632	q5653655.exe
4456	r9468086.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	q5653655.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	q5653655.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\\\""	7d2d45b5937ea290b091c8ccd70073bfedc220269f4ab6c1833823d1678ed166.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4456 set thread context of 4416	4456	r9468086.exe	95

Launches sc.exe 1 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
1068	sc.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
756	4456	WerFault.exe	93

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2632	q5653655.exe
2632	q5653655.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2632	q5653655.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 184 wrote to memory of 2632	184	7d2d45b5937ea290b091c8ccd70073bfedc220269f4ab6c1833823d1678ed166.exe	83
PID 184 wrote to memory of 2632	184	7d2d45b5937ea290b091c8ccd70073bfedc220269f4ab6c1833823d1678ed166.exe	83
PID 184 wrote to memory of 2632	184	7d2d45b5937ea290b091c8ccd70073bfedc220269f4ab6c1833823d1678ed166.exe	83
PID 184 wrote to memory of 4456	184	7d2d45b5937ea290b091c8ccd70073bfedc220269f4ab6c1833823d1678ed166.exe	93
PID 184 wrote to memory of 4456	184	7d2d45b5937ea290b091c8ccd70073bfedc220269f4ab6c1833823d1678ed166.exe	93
PID 184 wrote to memory of 4456	184	7d2d45b5937ea290b091c8ccd70073bfedc220269f4ab6c1833823d1678ed166.exe	93
PID 4456 wrote to memory of 4416	4456	r9468086.exe	95
PID 4456 wrote to memory of 4416	4456	r9468086.exe	95
PID 4456 wrote to memory of 4416	4456	r9468086.exe	95
PID 4456 wrote to memory of 4416	4456	r9468086.exe	95
PID 4456 wrote to memory of 4416	4456	r9468086.exe	95
PID 4456 wrote to memory of 4416	4456	r9468086.exe	95
PID 4456 wrote to memory of 4416	4456	r9468086.exe	95
PID 4456 wrote to memory of 4416	4456	r9468086.exe	95
PID 4456 wrote to memory of 4416	4456	r9468086.exe	95
PID 4456 wrote to memory of 4416	4456	r9468086.exe	95

C:\Users\Admin\AppData\Local\Temp\7d2d45b5937ea290b091c8ccd70073bfedc220269f4ab6c1833823d1678ed166.exe
"C:\Users\Admin\AppData\Local\Temp\7d2d45b5937ea290b091c8ccd70073bfedc220269f4ab6c1833823d1678ed166.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:184
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\q5653655.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\q5653655.exe
  2⤵
  - Modifies Windows Defender Real-time Protection settings
  - Executes dropped EXE
  - Windows security modification
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2632
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\r9468086.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\r9468086.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4456
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:4416
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4456 -s 160
    3⤵
    - Program crash
    PID:756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4456 -ip 4456
1⤵
PID:2304

C:\Windows\system32\sc.exe
C:\Windows\system32\sc.exe start wuauserv
1⤵
- Launches sc.exe
PID:1068

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\q5653655.exe

Filesize
192KB

MD5
839c38fc6c255f074e5d4ea8283e062a

SHA1
060cb619fd168f044208ffa3035d5bf17a793930

SHA256
e0c507f7bc4ce487d2e0b1e4188a11b8799fc0b0bf6c1cdf7d8bbd44fd95b7bd

SHA512
448c9e60679b91aeff2a7a1530f52f05d264e186558898e8e8f5ea14abe72e123d1484db91f7e547a68b6d67944084209bac7da25f1fd7deb3861cdfb08c04d0

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\r9468086.exe

Filesize
1.4MB

MD5
3114ca627d5c4d30e1b4682ae4f342b5

SHA1
0efd30d71dcdfc8344a53b36e5937e9201ea11eb

SHA256
f6ff97589d44d214aee60e9bf24b2b452dd6309ad2aa35bde284f80d1c1e5dc3

SHA512
a35698a044122e8e4f5dd73dc0c3078535c7bbadb3d9d6ada6f2269d929822cda89763eea50135fd1795cf219bdfe145397cc94df4f9f6ea031169626b831293

Download Submit
memory/2632-29-0x00000000023A0000-0x00000000023B6000-memory.dmp

Filesize
88KB

Download
memory/2632-15-0x00000000023A0000-0x00000000023B6000-memory.dmp

Filesize
88KB

Download
memory/2632-8-0x0000000002250000-0x000000000226E000-memory.dmp

Filesize
120KB

Download
memory/2632-11-0x00000000023A0000-0x00000000023BC000-memory.dmp

Filesize
112KB

Download
memory/2632-12-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/2632-13-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/2632-41-0x00000000023A0000-0x00000000023B6000-memory.dmp

Filesize
88KB

Download
memory/2632-39-0x00000000023A0000-0x00000000023B6000-memory.dmp

Filesize
88KB

Download
memory/2632-37-0x00000000023A0000-0x00000000023B6000-memory.dmp

Filesize
88KB

Download
memory/2632-35-0x00000000023A0000-0x00000000023B6000-memory.dmp

Filesize
88KB

Download
memory/2632-33-0x00000000023A0000-0x00000000023B6000-memory.dmp

Filesize
88KB

Download
memory/2632-31-0x00000000023A0000-0x00000000023B6000-memory.dmp

Filesize
88KB

Download
memory/2632-10-0x0000000004A80000-0x0000000005024000-memory.dmp

Filesize
5.6MB

Download
memory/2632-27-0x00000000023A0000-0x00000000023B6000-memory.dmp

Filesize
88KB

Download
memory/2632-43-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/2632-24-0x00000000023A0000-0x00000000023B6000-memory.dmp

Filesize
88KB

Download
memory/2632-21-0x00000000023A0000-0x00000000023B6000-memory.dmp

Filesize
88KB

Download
memory/2632-19-0x00000000023A0000-0x00000000023B6000-memory.dmp

Filesize
88KB

Download
memory/2632-17-0x00000000023A0000-0x00000000023B6000-memory.dmp

Filesize
88KB

Download
memory/2632-9-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/2632-14-0x00000000023A0000-0x00000000023B6000-memory.dmp

Filesize
88KB

Download
memory/2632-25-0x00000000023A0000-0x00000000023B6000-memory.dmp

Filesize
88KB

Download
memory/2632-7-0x000000007444E000-0x000000007444F000-memory.dmp

Filesize
4KB

Download
memory/4416-47-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4416-51-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4416-48-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4416-49-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download