mystic | 3c91163ea40ad7e35bac48ded16235cfe9003c914f570e27b4e2d7b3c9c46c05

Analysis

max time kernel
132s
max time network
107s
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 19:19

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General

Target

54ca1e2099a7fa3784bdf97aab3d613e7f208386c64b96702c21a1faa6cf17d4.exe
Size

362KB
MD5

c2941ef0e1a079c6c8689d4966978fe2
SHA1

ef1caf837907fad59ab93f69ab37a5fb8e7a6437
SHA256

54ca1e2099a7fa3784bdf97aab3d613e7f208386c64b96702c21a1faa6cf17d4
SHA512

83d345793e63c4fd3bfb7af001af16adf18dc7ae05ce0ba6574a738350dedc276f659fe70648cf296426c493a7a8e25e9285250516c7fa172b5ed025f599bb02
SSDEEP

6144:KTy+bnr+up0yN90QEoCTn5B6oTBcatf0efqG5l6qMzsMAD71:ZMr6y90mun5B6oT8OMzsp1

Score

10^/10

mystic evasion persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 1 IoCs

resource	yara_rule
behavioral7/files/0x0007000000023402-45.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\DisableScanOnRealtimeEnable = "1"	1py03dZ8.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	1py03dZ8.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	1py03dZ8.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	1py03dZ8.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	1py03dZ8.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	1py03dZ8.exe

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

Executes dropped EXE 2 IoCs

pid	Process
2400	1py03dZ8.exe
4480	2rp5818.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"	1py03dZ8.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	1py03dZ8.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\\\""	54ca1e2099a7fa3784bdf97aab3d613e7f208386c64b96702c21a1faa6cf17d4.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2400	1py03dZ8.exe
2400	1py03dZ8.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2400	1py03dZ8.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 2400	1680	54ca1e2099a7fa3784bdf97aab3d613e7f208386c64b96702c21a1faa6cf17d4.exe	82
PID 1680 wrote to memory of 2400	1680	54ca1e2099a7fa3784bdf97aab3d613e7f208386c64b96702c21a1faa6cf17d4.exe	82
PID 1680 wrote to memory of 2400	1680	54ca1e2099a7fa3784bdf97aab3d613e7f208386c64b96702c21a1faa6cf17d4.exe	82
PID 1680 wrote to memory of 4480	1680	54ca1e2099a7fa3784bdf97aab3d613e7f208386c64b96702c21a1faa6cf17d4.exe	93
PID 1680 wrote to memory of 4480	1680	54ca1e2099a7fa3784bdf97aab3d613e7f208386c64b96702c21a1faa6cf17d4.exe	93
PID 1680 wrote to memory of 4480	1680	54ca1e2099a7fa3784bdf97aab3d613e7f208386c64b96702c21a1faa6cf17d4.exe	93

C:\Users\Admin\AppData\Local\Temp\54ca1e2099a7fa3784bdf97aab3d613e7f208386c64b96702c21a1faa6cf17d4.exe
"C:\Users\Admin\AppData\Local\Temp\54ca1e2099a7fa3784bdf97aab3d613e7f208386c64b96702c21a1faa6cf17d4.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1680
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1py03dZ8.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1py03dZ8.exe
  2⤵
  - Modifies Windows Defender Real-time Protection settings
  - Executes dropped EXE
  - Windows security modification
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2400
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2rp5818.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2rp5818.exe
  2⤵
  - Executes dropped EXE
  PID:4480

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\1py03dZ8.exe

Filesize
192KB

MD5
8904f85abd522c7d0cb5789d9583ccff

SHA1
5b34d8595b37c9e1fb9682b06dc5228efe07f0c6

SHA256
7624b62fe97c8e370c82bc86f69c2f627328e701ce1f3d9bed92a1e5fe11fd7f

SHA512
04dd0c4e612b6287af6a655425085d687538d756dcd639ecb6c62bcdafddde52c56ae305a6240ee1329a95d9cc59dee6de5000d273a5a560ad1adc3284e00e12

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2rp5818.exe

Filesize
190KB

MD5
a6656e3d6d06c8ce9cbb4b6952553c20

SHA1
af45103616dc896da5ee4268fd5f9483b5b97c1c

SHA256
fec303b128c44607654c078736b96d2762722f51b6c473dfe5415158fd83718b

SHA512
f53f2214d3f192a352b2a93c66d91988a41a5ab9dbf15edd62ea8ce38da8a732114e3c46526d4dc6f3132330913b1acb90fa11ff454a1520d117149a86678d84

Download Submit
memory/2400-41-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/2400-7-0x000000007476E000-0x000000007476F000-memory.dmp

Filesize
4KB

Download
memory/2400-8-0x0000000002240000-0x000000000225E000-memory.dmp

Filesize
120KB

Download
memory/2400-11-0x0000000004990000-0x00000000049AC000-memory.dmp

Filesize
112KB

Download
memory/2400-39-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2400-37-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2400-35-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2400-40-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/2400-33-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2400-27-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2400-10-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/2400-9-0x0000000004AC0000-0x0000000005064000-memory.dmp

Filesize
5.6MB

Download
memory/2400-31-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2400-25-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2400-23-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2400-21-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2400-19-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2400-17-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2400-15-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2400-13-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2400-12-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2400-43-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/2400-29-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download