mystic | 3bad5318d1eadf9f6d544fc5ed49c1e737fb2db130f60b70bab6f26392c87c30

Analysis

max time kernel
132s
max time network
102s
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 10:50

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General

Target

d722251ee6167c7e35bae3b84b679d483609f718be9b0d4851cca6d9ccfdee28.exe
Size

494KB
MD5

cc17f7fd65eb5807c669a72e1ebce8e0
SHA1

ccb2679da3d2c11a41afa43b1478a0a1fecc7d28
SHA256

d722251ee6167c7e35bae3b84b679d483609f718be9b0d4851cca6d9ccfdee28
SHA512

2c46d80178f89757c5a5b4f793f03227f1d7d63eb0e56a5fbadf0f891828cfe3e59678ff8721336c2b12c65a35f52418fa72d52d500cc1d4ed6fa371e511f0ad
SSDEEP

12288:ZMrTy90wT1Wf73gyrtJ/xO6gn9t3bqS1HDUY7QYbhkc:KylT1Wfbgy//Sz3vHDUYk6kc

Score

10^/10

mystic evasion persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 4 IoCs

resource	yara_rule
behavioral18/memory/1192-47-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral18/memory/1192-48-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral18/memory/1192-51-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral18/memory/1192-49-0x0000000000400000-0x0000000000433000-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

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	1Ql63wp2.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	1Ql63wp2.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	1Ql63wp2.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	1Ql63wp2.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	1Ql63wp2.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	1Ql63wp2.exe

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

Executes dropped EXE 2 IoCs

pid	Process
1376	1Ql63wp2.exe
548	2RM5611.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	1Ql63wp2.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	1Ql63wp2.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\\\""	d722251ee6167c7e35bae3b84b679d483609f718be9b0d4851cca6d9ccfdee28.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 548 set thread context of 1192	548	2RM5611.exe	94

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1736	548	WerFault.exe	93

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1376	1Ql63wp2.exe
1376	1Ql63wp2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1376	1Ql63wp2.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 940 wrote to memory of 1376	940	d722251ee6167c7e35bae3b84b679d483609f718be9b0d4851cca6d9ccfdee28.exe	83
PID 940 wrote to memory of 1376	940	d722251ee6167c7e35bae3b84b679d483609f718be9b0d4851cca6d9ccfdee28.exe	83
PID 940 wrote to memory of 1376	940	d722251ee6167c7e35bae3b84b679d483609f718be9b0d4851cca6d9ccfdee28.exe	83
PID 940 wrote to memory of 548	940	d722251ee6167c7e35bae3b84b679d483609f718be9b0d4851cca6d9ccfdee28.exe	93
PID 940 wrote to memory of 548	940	d722251ee6167c7e35bae3b84b679d483609f718be9b0d4851cca6d9ccfdee28.exe	93
PID 940 wrote to memory of 548	940	d722251ee6167c7e35bae3b84b679d483609f718be9b0d4851cca6d9ccfdee28.exe	93
PID 548 wrote to memory of 1192	548	2RM5611.exe	94
PID 548 wrote to memory of 1192	548	2RM5611.exe	94
PID 548 wrote to memory of 1192	548	2RM5611.exe	94
PID 548 wrote to memory of 1192	548	2RM5611.exe	94
PID 548 wrote to memory of 1192	548	2RM5611.exe	94
PID 548 wrote to memory of 1192	548	2RM5611.exe	94
PID 548 wrote to memory of 1192	548	2RM5611.exe	94
PID 548 wrote to memory of 1192	548	2RM5611.exe	94
PID 548 wrote to memory of 1192	548	2RM5611.exe	94
PID 548 wrote to memory of 1192	548	2RM5611.exe	94

C:\Users\Admin\AppData\Local\Temp\d722251ee6167c7e35bae3b84b679d483609f718be9b0d4851cca6d9ccfdee28.exe
"C:\Users\Admin\AppData\Local\Temp\d722251ee6167c7e35bae3b84b679d483609f718be9b0d4851cca6d9ccfdee28.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:940
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1Ql63wp2.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1Ql63wp2.exe
  2⤵
  - Modifies Windows Defender Real-time Protection settings
  - Executes dropped EXE
  - Windows security modification
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1376
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2RM5611.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2RM5611.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:548
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:1192
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 548 -s 576
    3⤵
    - Program crash
    PID:1736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 548 -ip 548
1⤵
PID:4736

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\1Ql63wp2.exe

Filesize
194KB

MD5
6241b03d68a610324ecda52f0f84e287

SHA1
da80280b6e3925e455925efd6c6e59a6118269c4

SHA256
ec74de9416b8ef2c3bdb1a9835e54548b3185524210d1aeffa91c98f74f751e2

SHA512
a60fe447cb0bed8e6cbd7c344b19a4602553209cbda7a40993f0fdf01e096bda4b79de0b528ecebf2efa0007f81d7bd6c7ef84252b2a160c93d642a78f0095f9

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2RM5611.exe

Filesize
449KB

MD5
c4387d0e420f1975347d089fc4d6368a

SHA1
547d98cb97706fccaa73d992ce9f8ca3b3a86896

SHA256
0c846f3fc3b81a672529ed494ad88ccbc820e5da596bf6886523c64070170467

SHA512
59b14cc36f3d2b5fc19832327ef2589b11c5befbaaa8014205a555e74e5e36aa9cf0dc52f2e1b63f6b8f4dc09cf34b9189ceac95e154a6cb54f49f76c40b1d65

Download Submit
memory/1192-49-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1192-51-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1192-48-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1192-47-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1376-26-0x0000000002640000-0x0000000002656000-memory.dmp

Filesize
88KB

Download
memory/1376-14-0x0000000002640000-0x0000000002656000-memory.dmp

Filesize
88KB

Download
memory/1376-40-0x0000000002640000-0x0000000002656000-memory.dmp

Filesize
88KB

Download
memory/1376-38-0x0000000002640000-0x0000000002656000-memory.dmp

Filesize
88KB

Download
memory/1376-35-0x0000000002640000-0x0000000002656000-memory.dmp

Filesize
88KB

Download
memory/1376-32-0x0000000002640000-0x0000000002656000-memory.dmp

Filesize
88KB

Download
memory/1376-30-0x0000000002640000-0x0000000002656000-memory.dmp

Filesize
88KB

Download
memory/1376-28-0x0000000002640000-0x0000000002656000-memory.dmp

Filesize
88KB

Download
memory/1376-12-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/1376-24-0x0000000002640000-0x0000000002656000-memory.dmp

Filesize
88KB

Download
memory/1376-16-0x0000000002640000-0x0000000002656000-memory.dmp

Filesize
88KB

Download
memory/1376-20-0x0000000002640000-0x0000000002656000-memory.dmp

Filesize
88KB

Download
memory/1376-36-0x0000000002640000-0x0000000002656000-memory.dmp

Filesize
88KB

Download
memory/1376-22-0x0000000002640000-0x0000000002656000-memory.dmp

Filesize
88KB

Download
memory/1376-18-0x0000000002640000-0x0000000002656000-memory.dmp

Filesize
88KB

Download
memory/1376-13-0x0000000002640000-0x0000000002656000-memory.dmp

Filesize
88KB

Download
memory/1376-41-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/1376-43-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/1376-11-0x0000000002640000-0x000000000265C000-memory.dmp

Filesize
112KB

Download
memory/1376-9-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/1376-10-0x0000000004BC0000-0x0000000005164000-memory.dmp

Filesize
5.6MB

Download
memory/1376-8-0x0000000002460000-0x000000000247E000-memory.dmp

Filesize
120KB

Download
memory/1376-7-0x0000000074B3E000-0x0000000074B3F000-memory.dmp

Filesize
4KB

Download