mystic | 47889c48da4c5e390f10c04d8390b2c5d9f68bec127bf0e18bbe686b9079b922

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
23-05-2024 17:43

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General

Target

2539ef3c9ef568b60de04a70266f168cf5565fa88027d7d88812aed2417d527a.exe
Size

696KB
MD5

d5ec309839dfeecd969b8130e5749026
SHA1

a98c8fcf74497f87b6554539ecfe827944173f1e
SHA256

2539ef3c9ef568b60de04a70266f168cf5565fa88027d7d88812aed2417d527a
SHA512

62621d7a1dcaec6d38821b675d253e1fcb3842f8681d5381891195347ab4f932dfe67662b77dc8565b04ab00c8757de19640964f6563523280e8c044b8a9b7cb
SSDEEP

12288:1Mrqy90mN/4HcEZACMRlEsnBc13cGdab7D7z717HlrdMDc1r2w7hxvqNSmjB8PYy:ryDJ4Hc8ACMPEE2z257HvSC7h7YXje

Score

10^/10

mystic smokeloader backdoor evasion persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 3 IoCs

resource	yara_rule
behavioral5/memory/3780-54-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral5/memory/3780-56-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral5/memory/3780-57-0x0000000000400000-0x0000000000428000-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
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	1lN02DS2.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	1lN02DS2.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	1lN02DS2.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	1lN02DS2.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	1lN02DS2.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	1lN02DS2.exe

Mystic
Mystic is an infostealer written in C++.
stealer mystic
SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader

Executes dropped EXE 4 IoCs

pid	Process
4964	PB3RP77.exe
2496	1lN02DS2.exe
932	2xE5175.exe
2488	3Qw83fo.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	1lN02DS2.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	1lN02DS2.exe

Adds Run key to start application 2 TTPs 2 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_cleanup1 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP001.TMP\\\""	PB3RP77.exe
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\\\""	2539ef3c9ef568b60de04a70266f168cf5565fa88027d7d88812aed2417d527a.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 932 set thread context of 3780	932	2xE5175.exe	95
PID 2488 set thread context of 4184	2488	3Qw83fo.exe	102

Launches sc.exe 1 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2228	sc.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4300	932	WerFault.exe	93
3940	2488	WerFault.exe	99

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	AppLaunch.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	AppLaunch.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	AppLaunch.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2496	1lN02DS2.exe
2496	1lN02DS2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2496	1lN02DS2.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 4964	2336	2539ef3c9ef568b60de04a70266f168cf5565fa88027d7d88812aed2417d527a.exe	82
PID 2336 wrote to memory of 4964	2336	2539ef3c9ef568b60de04a70266f168cf5565fa88027d7d88812aed2417d527a.exe	82
PID 2336 wrote to memory of 4964	2336	2539ef3c9ef568b60de04a70266f168cf5565fa88027d7d88812aed2417d527a.exe	82
PID 4964 wrote to memory of 2496	4964	PB3RP77.exe	83
PID 4964 wrote to memory of 2496	4964	PB3RP77.exe	83
PID 4964 wrote to memory of 2496	4964	PB3RP77.exe	83
PID 4964 wrote to memory of 932	4964	PB3RP77.exe	93
PID 4964 wrote to memory of 932	4964	PB3RP77.exe	93
PID 4964 wrote to memory of 932	4964	PB3RP77.exe	93
PID 932 wrote to memory of 3780	932	2xE5175.exe	95
PID 932 wrote to memory of 3780	932	2xE5175.exe	95
PID 932 wrote to memory of 3780	932	2xE5175.exe	95
PID 932 wrote to memory of 3780	932	2xE5175.exe	95
PID 932 wrote to memory of 3780	932	2xE5175.exe	95
PID 932 wrote to memory of 3780	932	2xE5175.exe	95
PID 932 wrote to memory of 3780	932	2xE5175.exe	95
PID 932 wrote to memory of 3780	932	2xE5175.exe	95
PID 932 wrote to memory of 3780	932	2xE5175.exe	95
PID 932 wrote to memory of 3780	932	2xE5175.exe	95
PID 2336 wrote to memory of 2488	2336	2539ef3c9ef568b60de04a70266f168cf5565fa88027d7d88812aed2417d527a.exe	99
PID 2336 wrote to memory of 2488	2336	2539ef3c9ef568b60de04a70266f168cf5565fa88027d7d88812aed2417d527a.exe	99
PID 2336 wrote to memory of 2488	2336	2539ef3c9ef568b60de04a70266f168cf5565fa88027d7d88812aed2417d527a.exe	99
PID 2488 wrote to memory of 3260	2488	3Qw83fo.exe	101
PID 2488 wrote to memory of 3260	2488	3Qw83fo.exe	101
PID 2488 wrote to memory of 3260	2488	3Qw83fo.exe	101
PID 2488 wrote to memory of 4184	2488	3Qw83fo.exe	102
PID 2488 wrote to memory of 4184	2488	3Qw83fo.exe	102
PID 2488 wrote to memory of 4184	2488	3Qw83fo.exe	102
PID 2488 wrote to memory of 4184	2488	3Qw83fo.exe	102
PID 2488 wrote to memory of 4184	2488	3Qw83fo.exe	102
PID 2488 wrote to memory of 4184	2488	3Qw83fo.exe	102

C:\Users\Admin\AppData\Local\Temp\2539ef3c9ef568b60de04a70266f168cf5565fa88027d7d88812aed2417d527a.exe
"C:\Users\Admin\AppData\Local\Temp\2539ef3c9ef568b60de04a70266f168cf5565fa88027d7d88812aed2417d527a.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2336
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\PB3RP77.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\PB3RP77.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:4964
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1lN02DS2.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1lN02DS2.exe
    3⤵
    - Modifies Windows Defender Real-time Protection settings
    - Executes dropped EXE
    - Windows security modification
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2496
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2xE5175.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2xE5175.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:932
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:3780
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 932 -s 596
      4⤵
      Program crash
      PID:4300
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3Qw83fo.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3Qw83fo.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2488
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:3260
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    - Checks SCSI registry key(s)
    PID:4184
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2488 -s 588
    3⤵
    - Program crash
    PID:3940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 932 -ip 932
1⤵
PID:3788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2488 -ip 2488
1⤵
PID:3500

C:\Windows\system32\sc.exe
C:\Windows\system32\sc.exe start wuauserv
1⤵
- Launches sc.exe
PID:2228

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

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3Qw83fo.exe

Filesize
268KB

MD5
f09b788bfb242f8edcb4b4ab2bd0275a

SHA1
71b2273479460cbda9d08073d0b116935d2c6813

SHA256
f291d8694f3198b824474d57a18792218a5d622f2f59370efe6679563db87521

SHA512
709bdc1a303159b27f7e7fa793d1c78f3d6223b5a3ba2c03cbea36eafc1bd0e2edc1bd19e61f7ed5ca53a1ab5018d7c171fc9c3c4ff67b02b4087a07cfd5dda6

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\PB3RP77.exe

Filesize
452KB

MD5
a497555e753a22fa2cd865169eeed2bd

SHA1
ced835e2e1921c35b477fa8a2bce27ec799264e6

SHA256
0863952871c6e55ddcac6bd71da4e6cee203eddc3b6ccfec5e3fda4cdbf627e4

SHA512
77657aee28ee2d802ad1388511ae49f9aca465d0e0fadaf7f54439ede9026834722e3908dab94fdab38f6dfabcd075eb1e6606dd89df8f01e90e03f21c16030c

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1lN02DS2.exe

Filesize
192KB

MD5
8904f85abd522c7d0cb5789d9583ccff

SHA1
5b34d8595b37c9e1fb9682b06dc5228efe07f0c6

SHA256
7624b62fe97c8e370c82bc86f69c2f627328e701ce1f3d9bed92a1e5fe11fd7f

SHA512
04dd0c4e612b6287af6a655425085d687538d756dcd639ecb6c62bcdafddde52c56ae305a6240ee1329a95d9cc59dee6de5000d273a5a560ad1adc3284e00e12

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2xE5175.exe

Filesize
378KB

MD5
f0831f173733de08511f3a0739f278a6

SHA1
06dc809d653c5d2c97386084ae13b50a73eb5b60

SHA256
8b00f9dce8ceb2123fba3bc9f88419960d1e661b6287eafeba4f0a2ee4be3d27

SHA512
19e3176ce1f154758f685cc4582e93587aa534a251de315473e35758dcd6ff6315880be7602097308dc89c355742be4729bad81de597e8d430a8e868082314e3

Download Submit
memory/2496-38-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2496-32-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2496-18-0x0000000004990000-0x00000000049AC000-memory.dmp

Filesize
112KB

Download
memory/2496-20-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2496-26-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2496-46-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2496-44-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2496-47-0x0000000074310000-0x0000000074AC0000-memory.dmp

Filesize
7.7MB

Download
memory/2496-42-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2496-40-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2496-16-0x0000000004AC0000-0x0000000005064000-memory.dmp

Filesize
5.6MB

Download
memory/2496-36-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2496-34-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2496-17-0x0000000074310000-0x0000000074AC0000-memory.dmp

Filesize
7.7MB

Download
memory/2496-30-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2496-28-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2496-24-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2496-22-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2496-19-0x0000000004990000-0x00000000049A6000-memory.dmp

Filesize
88KB

Download
memory/2496-48-0x0000000074310000-0x0000000074AC0000-memory.dmp

Filesize
7.7MB

Download
memory/2496-50-0x0000000074310000-0x0000000074AC0000-memory.dmp

Filesize
7.7MB

Download
memory/2496-15-0x0000000002330000-0x000000000234E000-memory.dmp

Filesize
120KB

Download
memory/2496-14-0x000000007431E000-0x000000007431F000-memory.dmp

Filesize
4KB

Download
memory/3780-56-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3780-57-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3780-54-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4184-61-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download