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
Sample240524-jjsbwsab65
SHA256 67dbedea2ea23fd4fe189651241dd1489f71cf6bb5803d660d3d7ecd91ff5669
MD5 5de79890538ec9e56c749846ff57eb06
SHA1 9a85404f227edf8455d9b3aed7591539fb522450
SHA512 ac3452391e92fb42531cd0f291a6aad43e2073110c9e1ad20f5827f4647f3f898f21cb164a3c6e6271616cdb0ff3893a7ed9d6468f744ed62e59503bb8bad120
SSDEEP 6144:Kzy+bnr+Jp0yN90QEUdcwpvuLTBW0k2yAICL2eSuAsL53lqmDxTBUOF5zTOWrBax:hMrty902d12LTOXv4J1qGNppaWr2ug
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

mystic evasion persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 4 IoCs

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

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

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

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

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

description	pid	Process	procid_target
PID 452 set thread context of 3472	452	2FT2572.exe	97

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2172	452	WerFault.exe	96

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4964	1zK80Mv0.exe
4964	1zK80Mv0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4964	1zK80Mv0.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4780 wrote to memory of 4964	4780	67dbedea2ea23fd4fe189651241dd1489f71cf6bb5803d660d3d7ecd91ff5669.exe	83
PID 4780 wrote to memory of 4964	4780	67dbedea2ea23fd4fe189651241dd1489f71cf6bb5803d660d3d7ecd91ff5669.exe	83
PID 4780 wrote to memory of 4964	4780	67dbedea2ea23fd4fe189651241dd1489f71cf6bb5803d660d3d7ecd91ff5669.exe	83
PID 4780 wrote to memory of 452	4780	67dbedea2ea23fd4fe189651241dd1489f71cf6bb5803d660d3d7ecd91ff5669.exe	96
PID 4780 wrote to memory of 452	4780	67dbedea2ea23fd4fe189651241dd1489f71cf6bb5803d660d3d7ecd91ff5669.exe	96
PID 4780 wrote to memory of 452	4780	67dbedea2ea23fd4fe189651241dd1489f71cf6bb5803d660d3d7ecd91ff5669.exe	96
PID 452 wrote to memory of 3472	452	2FT2572.exe	97
PID 452 wrote to memory of 3472	452	2FT2572.exe	97
PID 452 wrote to memory of 3472	452	2FT2572.exe	97
PID 452 wrote to memory of 3472	452	2FT2572.exe	97
PID 452 wrote to memory of 3472	452	2FT2572.exe	97
PID 452 wrote to memory of 3472	452	2FT2572.exe	97
PID 452 wrote to memory of 3472	452	2FT2572.exe	97
PID 452 wrote to memory of 3472	452	2FT2572.exe	97
PID 452 wrote to memory of 3472	452	2FT2572.exe	97
PID 452 wrote to memory of 3472	452	2FT2572.exe	97

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

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Downloads

1zK80Mv0.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1zK80Mv0.exe
Size 194KB
SHA256 97e62bfa90aca06c595fb150e36f56b4a285f58cc072b8c458ae79805523fc36
MD5 35d718538c3e1346cb4fcf54aaa0f141
SHA1 234c0aa0465c27c190a83936e8e3aa3c4b991224
SHA512 4bcf5cabe93ec54608ccb95d80822f411bb32c2746be609873a493045913fb53e0a953e75f82dfe620d661f049437da7a70d34995dc915bb0b09426e97f0aec3
SSDEEP 3072:0DKW1LgppLRHMY0TBfJvjcTp5XYtzgXbxrf5Qfp16I8hW7xs:0DKW1Lgbdl0TBBvjc/82tf5QBtS
MD5 SHA1 SHA512 SSDEEP

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2FT2572.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2FT2572.exe
Size 423KB
SHA256 2883472a8133807a9491dac37dc4a5cb4cb9708a9e0fb66a97b27bbbf450f270
MD5 6c37a4438cc7d396eb5b2fd852b0a131
SHA1 3ffb1772abdae5bc8042de9e69785c8cfadddaf8
SHA512 b6f6ad1fb478f676bde27d808c64ac540a9cdb34a656ef78b9328def6679d621d0bf8a0f7ee61d4a8a90a5fa29dda5de66603bb8eeb18acb44e7d3400e82f0eb
SSDEEP 6144:tDKfpu01XFBvaKAwQtdsJlfpoCJAOH8IdnSLOS6Dpl/2hVYOgpecaY9a9OioAQr4:tDKxf1XFBC2JQCJOOnSqSu/LBeci4rlS
MD5 SHA1 SHA512 SSDEEP

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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