mystic | ac90002ec144a6c8c89c45137265a202aeef6b583cef01223b622e10b4c4b797

Analysis

max time kernel
135s
max time network
107s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 18:40

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General

Target

f446c909f19842f14d9643227c64f29a129aefa05bfd1800cdf1d9231454083f.exe
Size

325KB
MD5

94423a76c276ef0619854c22feb44640
SHA1

ade1d5f65c42a03b7f2320c9d281b72f06002606
SHA256

f446c909f19842f14d9643227c64f29a129aefa05bfd1800cdf1d9231454083f
SHA512

0fa2fb4222120f91a8eafe37c558c9386a6fc8e7bf5dcdd951d20d099b1b5a758ed7c56897ab5fa377b34fb4829ca273c0dc4943182d4fa51d32ac3ed71160e5
SSDEEP

6144:K4y+bnr+bp0yN90QEcwrqnDMxPzT2hn1RNfcb35572kM0P8:8Mr3y909qn4BTSzu1R20P8

Score

10^/10

mystic evasion persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 1 IoCs

resource	yara_rule
behavioral20/files/0x0007000000023409-45.dat	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\DisableRealtimeMonitoring = "1"	a9453928.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	a9453928.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	a9453928.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	a9453928.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	a9453928.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	a9453928.exe

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

Executes dropped EXE 2 IoCs

pid	Process
1440	a9453928.exe
1980	b9986191.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	a9453928.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	a9453928.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\\\""	f446c909f19842f14d9643227c64f29a129aefa05bfd1800cdf1d9231454083f.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1440	a9453928.exe
1440	a9453928.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1440	a9453928.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1744 wrote to memory of 1440	1744	f446c909f19842f14d9643227c64f29a129aefa05bfd1800cdf1d9231454083f.exe	83
PID 1744 wrote to memory of 1440	1744	f446c909f19842f14d9643227c64f29a129aefa05bfd1800cdf1d9231454083f.exe	83
PID 1744 wrote to memory of 1440	1744	f446c909f19842f14d9643227c64f29a129aefa05bfd1800cdf1d9231454083f.exe	83
PID 1744 wrote to memory of 1980	1744	f446c909f19842f14d9643227c64f29a129aefa05bfd1800cdf1d9231454083f.exe	93
PID 1744 wrote to memory of 1980	1744	f446c909f19842f14d9643227c64f29a129aefa05bfd1800cdf1d9231454083f.exe	93
PID 1744 wrote to memory of 1980	1744	f446c909f19842f14d9643227c64f29a129aefa05bfd1800cdf1d9231454083f.exe	93

C:\Users\Admin\AppData\Local\Temp\f446c909f19842f14d9643227c64f29a129aefa05bfd1800cdf1d9231454083f.exe
"C:\Users\Admin\AppData\Local\Temp\f446c909f19842f14d9643227c64f29a129aefa05bfd1800cdf1d9231454083f.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1744
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a9453928.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a9453928.exe
  2⤵
  - Modifies Windows Defender Real-time Protection settings
  - Executes dropped EXE
  - Windows security modification
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1440
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\b9986191.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\b9986191.exe
  2⤵
  - Executes dropped EXE
  PID:1980

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\a9453928.exe

Filesize
184KB

MD5
067d6b3dcb64761986c547dc4d116757

SHA1
e3538d03ea98d62f2637ccc2c5a0e669e0dca239

SHA256
582d7581938b093f9368e2ca840bb7e615e9dc2d8666296e14ac7cd9e0288289

SHA512
a31560fd1b23267a2ea4210fd2f572b16c71ebb0f993bc7e8ee583f14112eed59500ef810d99a54d9906a71412fd443922f529527ea0e6d2f79075abae2f2683

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\b9986191.exe

Filesize
140KB

MD5
78d0a2ead1d9b155c363666851364e93

SHA1
20e756a52871ddf4a0f443972cbe880c7331cc48

SHA256
8e032cdd06dfb69ccb55aab1f2355ff297cc1ea0a2d2082a6b4d0af8a6008483

SHA512
ffb0992e51e84743e220d9395eabd3b080ba4ec43603ca946c180d4d8b201ab9bc09ceb8437ec778938a043e2d53bd12cf0dc0a8cd12a31e4c96be83f6d19d8b

Download Submit
memory/1440-35-0x0000000004F50000-0x0000000004F66000-memory.dmp

Filesize
88KB

Download
memory/1440-7-0x00000000741DE000-0x00000000741DF000-memory.dmp

Filesize
4KB

Download
memory/1440-8-0x00000000022B0000-0x00000000022CE000-memory.dmp

Filesize
120KB

Download
memory/1440-11-0x0000000004F50000-0x0000000004F6C000-memory.dmp

Filesize
112KB

Download
memory/1440-15-0x0000000004F50000-0x0000000004F66000-memory.dmp

Filesize
88KB

Download
memory/1440-17-0x0000000004F50000-0x0000000004F66000-memory.dmp

Filesize
88KB

Download
memory/1440-13-0x0000000004F50000-0x0000000004F66000-memory.dmp

Filesize
88KB

Download
memory/1440-12-0x0000000004F50000-0x0000000004F66000-memory.dmp

Filesize
88KB

Download
memory/1440-39-0x0000000004F50000-0x0000000004F66000-memory.dmp

Filesize
88KB

Download
memory/1440-31-0x0000000004F50000-0x0000000004F66000-memory.dmp

Filesize
88KB

Download
memory/1440-10-0x0000000004990000-0x0000000004F34000-memory.dmp

Filesize
5.6MB

Download
memory/1440-9-0x00000000741D0000-0x0000000074980000-memory.dmp

Filesize
7.7MB

Download
memory/1440-38-0x0000000004F50000-0x0000000004F66000-memory.dmp

Filesize
88KB

Download
memory/1440-29-0x0000000004F50000-0x0000000004F66000-memory.dmp

Filesize
88KB

Download
memory/1440-27-0x0000000004F50000-0x0000000004F66000-memory.dmp

Filesize
88KB

Download
memory/1440-25-0x0000000004F50000-0x0000000004F66000-memory.dmp

Filesize
88KB

Download
memory/1440-23-0x0000000004F50000-0x0000000004F66000-memory.dmp

Filesize
88KB

Download
memory/1440-21-0x0000000004F50000-0x0000000004F66000-memory.dmp

Filesize
88KB

Download
memory/1440-19-0x0000000004F50000-0x0000000004F66000-memory.dmp

Filesize
88KB

Download
memory/1440-40-0x00000000741D0000-0x0000000074980000-memory.dmp

Filesize
7.7MB

Download
memory/1440-41-0x00000000741D0000-0x0000000074980000-memory.dmp

Filesize
7.7MB

Download
memory/1440-43-0x00000000741D0000-0x0000000074980000-memory.dmp

Filesize
7.7MB

Download
memory/1440-33-0x0000000004F50000-0x0000000004F66000-memory.dmp

Filesize
88KB

Download