mystic | bd5cb5ed04f67f5a6f2f5411e9ad5c457c0c3e3bf3a38e4996624bdfba01d98d

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
24-05-2024 07:42

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General

Target

67dbedea2ea23fd4fe189651241dd1489f71cf6bb5803d660d3d7ecd91ff5669.exe
Size

479KB
MD5

5de79890538ec9e56c749846ff57eb06
SHA1

9a85404f227edf8455d9b3aed7591539fb522450
SHA256

67dbedea2ea23fd4fe189651241dd1489f71cf6bb5803d660d3d7ecd91ff5669
SHA512

ac3452391e92fb42531cd0f291a6aad43e2073110c9e1ad20f5827f4647f3f898f21cb164a3c6e6271616cdb0ff3893a7ed9d6468f744ed62e59503bb8bad120
SSDEEP

6144:Kzy+bnr+Jp0yN90QEUdcwpvuLTBW0k2yAICL2eSuAsL53lqmDxTBUOF5zTOWrBax:hMrty902d12LTOXv4J1qGNppaWr2ug

Score

10^/10

mystic evasion persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 4 IoCs

Processes:

resource	yara_rule
behavioral8/memory/3472-47-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral8/memory/3472-48-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral8/memory/3472-51-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral8/memory/3472-49-0x0000000000400000-0x0000000000433000-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

Processes:

1zK80Mv0.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	1zK80Mv0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	1zK80Mv0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	1zK80Mv0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	1zK80Mv0.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	1zK80Mv0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	1zK80Mv0.exe

Mystic
Mystic is an infostealer written in C++.
stealer mystic
Executes dropped EXE 2 IoCs

Processes:

1zK80Mv0.exe2FT2572.exe

pid process

4964 1zK80Mv0.exe
452 2FT2572.exe

pid	process
4964	1zK80Mv0.exe
452	2FT2572.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

1zK80Mv0.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	1zK80Mv0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	1zK80Mv0.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

67dbedea2ea23fd4fe189651241dd1489f71cf6bb5803d660d3d7ecd91ff5669.exe

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\\\""	67dbedea2ea23fd4fe189651241dd1489f71cf6bb5803d660d3d7ecd91ff5669.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

2FT2572.exe

description pid process target process

PID 452 set thread context of 3472 452 2FT2572.exe AppLaunch.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2172 452 WerFault.exe 2FT2572.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

1zK80Mv0.exe

pid process

4964 1zK80Mv0.exe
4964 1zK80Mv0.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

1zK80Mv0.exe

description pid process

Token: SeDebugPrivilege 4964 1zK80Mv0.exe

description	pid	process	target process
PID 452 set thread context of 3472	452	2FT2572.exe	AppLaunch.exe

pid	pid_target	process	target process
2172	452	WerFault.exe	2FT2572.exe

pid	process
4964	1zK80Mv0.exe
4964	1zK80Mv0.exe

description	pid	process
Token: SeDebugPrivilege	4964	1zK80Mv0.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

67dbedea2ea23fd4fe189651241dd1489f71cf6bb5803d660d3d7ecd91ff5669.exe2FT2572.exe

description	pid	process	target process
PID 4780 wrote to memory of 4964	4780	67dbedea2ea23fd4fe189651241dd1489f71cf6bb5803d660d3d7ecd91ff5669.exe	1zK80Mv0.exe
PID 4780 wrote to memory of 4964	4780	67dbedea2ea23fd4fe189651241dd1489f71cf6bb5803d660d3d7ecd91ff5669.exe	1zK80Mv0.exe
PID 4780 wrote to memory of 4964	4780	67dbedea2ea23fd4fe189651241dd1489f71cf6bb5803d660d3d7ecd91ff5669.exe	1zK80Mv0.exe
PID 4780 wrote to memory of 452	4780	67dbedea2ea23fd4fe189651241dd1489f71cf6bb5803d660d3d7ecd91ff5669.exe	2FT2572.exe
PID 4780 wrote to memory of 452	4780	67dbedea2ea23fd4fe189651241dd1489f71cf6bb5803d660d3d7ecd91ff5669.exe	2FT2572.exe
PID 4780 wrote to memory of 452	4780	67dbedea2ea23fd4fe189651241dd1489f71cf6bb5803d660d3d7ecd91ff5669.exe	2FT2572.exe
PID 452 wrote to memory of 3472	452	2FT2572.exe	AppLaunch.exe
PID 452 wrote to memory of 3472	452	2FT2572.exe	AppLaunch.exe
PID 452 wrote to memory of 3472	452	2FT2572.exe	AppLaunch.exe
PID 452 wrote to memory of 3472	452	2FT2572.exe	AppLaunch.exe
PID 452 wrote to memory of 3472	452	2FT2572.exe	AppLaunch.exe
PID 452 wrote to memory of 3472	452	2FT2572.exe	AppLaunch.exe
PID 452 wrote to memory of 3472	452	2FT2572.exe	AppLaunch.exe
PID 452 wrote to memory of 3472	452	2FT2572.exe	AppLaunch.exe
PID 452 wrote to memory of 3472	452	2FT2572.exe	AppLaunch.exe
PID 452 wrote to memory of 3472	452	2FT2572.exe	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\67dbedea2ea23fd4fe189651241dd1489f71cf6bb5803d660d3d7ecd91ff5669.exe
"C:\Users\Admin\AppData\Local\Temp\67dbedea2ea23fd4fe189651241dd1489f71cf6bb5803d660d3d7ecd91ff5669.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4780
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1zK80Mv0.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1zK80Mv0.exe
  2⤵
  - Modifies Windows Defender Real-time Protection settings
  - Executes dropped EXE
  - Windows security modification
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4964
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2FT2572.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2FT2572.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:452
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:3472
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 452 -s 600
    3⤵
    - Program crash
    PID:2172

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 452 -ip 452
1⤵
PID:812

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\1zK80Mv0.exe

Filesize
194KB

MD5
35d718538c3e1346cb4fcf54aaa0f141

SHA1
234c0aa0465c27c190a83936e8e3aa3c4b991224

SHA256
97e62bfa90aca06c595fb150e36f56b4a285f58cc072b8c458ae79805523fc36

SHA512
4bcf5cabe93ec54608ccb95d80822f411bb32c2746be609873a493045913fb53e0a953e75f82dfe620d661f049437da7a70d34995dc915bb0b09426e97f0aec3

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2FT2572.exe

Filesize
423KB

MD5
6c37a4438cc7d396eb5b2fd852b0a131

SHA1
3ffb1772abdae5bc8042de9e69785c8cfadddaf8

SHA256
2883472a8133807a9491dac37dc4a5cb4cb9708a9e0fb66a97b27bbbf450f270

SHA512
b6f6ad1fb478f676bde27d808c64ac540a9cdb34a656ef78b9328def6679d621d0bf8a0f7ee61d4a8a90a5fa29dda5de66603bb8eeb18acb44e7d3400e82f0eb

Download Submit
memory/3472-49-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/3472-51-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/3472-48-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/3472-47-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4964-28-0x0000000002550000-0x0000000002566000-memory.dmp

Filesize
88KB

Download
memory/4964-20-0x0000000002550000-0x0000000002566000-memory.dmp

Filesize
88KB

Download
memory/4964-24-0x0000000002550000-0x0000000002566000-memory.dmp

Filesize
88KB

Download
memory/4964-40-0x0000000002550000-0x0000000002566000-memory.dmp

Filesize
88KB

Download
memory/4964-36-0x0000000002550000-0x0000000002566000-memory.dmp

Filesize
88KB

Download
memory/4964-34-0x0000000002550000-0x0000000002566000-memory.dmp

Filesize
88KB

Download
memory/4964-32-0x0000000002550000-0x0000000002566000-memory.dmp

Filesize
88KB

Download
memory/4964-30-0x0000000002550000-0x0000000002566000-memory.dmp

Filesize
88KB

Download
memory/4964-12-0x0000000074950000-0x0000000075100000-memory.dmp

Filesize
7.7MB

Download
memory/4964-26-0x0000000002550000-0x0000000002566000-memory.dmp

Filesize
88KB

Download
memory/4964-22-0x0000000002550000-0x0000000002566000-memory.dmp

Filesize
88KB

Download
memory/4964-18-0x0000000002550000-0x0000000002566000-memory.dmp

Filesize
88KB

Download
memory/4964-14-0x0000000002550000-0x0000000002566000-memory.dmp

Filesize
88KB

Download
memory/4964-13-0x0000000002550000-0x0000000002566000-memory.dmp

Filesize
88KB

Download
memory/4964-38-0x0000000002550000-0x0000000002566000-memory.dmp

Filesize
88KB

Download
memory/4964-16-0x0000000002550000-0x0000000002566000-memory.dmp

Filesize
88KB

Download
memory/4964-41-0x0000000074950000-0x0000000075100000-memory.dmp

Filesize
7.7MB

Download
memory/4964-43-0x0000000074950000-0x0000000075100000-memory.dmp

Filesize
7.7MB

Download
memory/4964-11-0x0000000002550000-0x000000000256C000-memory.dmp

Filesize
112KB

Download
memory/4964-10-0x0000000004A50000-0x0000000004FF4000-memory.dmp

Filesize
5.6MB

Download
memory/4964-9-0x0000000074950000-0x0000000075100000-memory.dmp

Filesize
7.7MB

Download
memory/4964-8-0x0000000002090000-0x00000000020AE000-memory.dmp

Filesize
120KB

Download
memory/4964-7-0x000000007495E000-0x000000007495F000-memory.dmp

Filesize
4KB

Download