mystic | eafc2bfbeaeddb89f86da75f29f14435b745b919f0b99dd1d0d30b9d33efb415

Analysis

max time kernel
135s
max time network
108s
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 07:44

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General

Target

fff53a878cc4bf75cd2f5a6ea052244eda18185761d3173fcd0c10469adce0d6.exe
Size

896KB
MD5

acb96f2c56fdf3eb258c2edae74918b8
SHA1

b4f63010294375e0655311a97aa2fbe840d04ae3
SHA256

fff53a878cc4bf75cd2f5a6ea052244eda18185761d3173fcd0c10469adce0d6
SHA512

2e147a07f4f1f043ed3bdcb3a066e2d6b3691bf4d395c23f16c93c3ed6bd2d783e4b9b6e8b67dca4677bba1eeccd8919f41912caafed8c4f9449c7ee7d742ab7
SSDEEP

24576:zyyDiQj64i1K7jr+ihsg6rCm8dR9N4NuayU40/JOLuy:Gypj6h6j66+CHzWFyDS0Lu

Score

10^/10

mystic smokeloader backdoor evasion persistence stealer trojan

Malware Config

Extracted

Family

mystic

http://5.42.92.211/

Signatures

Detect Mystic stealer payload 3 IoCs

Processes:

resource	yara_rule
behavioral20/memory/4676-19-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral20/memory/4676-22-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral20/memory/4676-20-0x0000000000400000-0x0000000000433000-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:

AppLaunch.exe

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

Processes:

eq7EB65.exe1mW05hR9.exe2IL7615.exe3NI02mm.exe

pid process

4320 eq7EB65.exe
3288 1mW05hR9.exe
4472 2IL7615.exe
4540 3NI02mm.exe

pid	process
4320	eq7EB65.exe
3288	1mW05hR9.exe
4472	2IL7615.exe
4540	3NI02mm.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

fff53a878cc4bf75cd2f5a6ea052244eda18185761d3173fcd0c10469adce0d6.exeeq7EB65.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\\\""	fff53a878cc4bf75cd2f5a6ea052244eda18185761d3173fcd0c10469adce0d6.exe
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\\\""	eq7EB65.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

1mW05hR9.exe2IL7615.exe3NI02mm.exe

description	pid	process	target process
PID 3288 set thread context of 1256	3288	1mW05hR9.exe	AppLaunch.exe
PID 4472 set thread context of 4676	4472	2IL7615.exe	AppLaunch.exe
PID 4540 set thread context of 2376	4540	3NI02mm.exe	AppLaunch.exe

Program crash 3 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exe

pid pid_target process target process

4196 3288 WerFault.exe 1mW05hR9.exe
1068 4472 WerFault.exe 2IL7615.exe
3840 4540 WerFault.exe 3NI02mm.exe

pid	pid_target	process	target process
4196	3288	WerFault.exe	1mW05hR9.exe
1068	4472	WerFault.exe	2IL7615.exe
3840	4540	WerFault.exe	3NI02mm.exe

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

Processes:

AppLaunch.exe

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

AppLaunch.exe

pid process

1256 AppLaunch.exe
1256 AppLaunch.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

AppLaunch.exe

description pid process

Token: SeDebugPrivilege 1256 AppLaunch.exe

pid	process
1256	AppLaunch.exe
1256	AppLaunch.exe

description	pid	process
Token: SeDebugPrivilege	1256	AppLaunch.exe

Suspicious use of WriteProcessMemory 36 IoCs

Processes:

fff53a878cc4bf75cd2f5a6ea052244eda18185761d3173fcd0c10469adce0d6.exeeq7EB65.exe1mW05hR9.exe2IL7615.exe3NI02mm.exe

description	pid	process	target process
PID 3144 wrote to memory of 4320	3144	fff53a878cc4bf75cd2f5a6ea052244eda18185761d3173fcd0c10469adce0d6.exe	eq7EB65.exe
PID 3144 wrote to memory of 4320	3144	fff53a878cc4bf75cd2f5a6ea052244eda18185761d3173fcd0c10469adce0d6.exe	eq7EB65.exe
PID 3144 wrote to memory of 4320	3144	fff53a878cc4bf75cd2f5a6ea052244eda18185761d3173fcd0c10469adce0d6.exe	eq7EB65.exe
PID 4320 wrote to memory of 3288	4320	eq7EB65.exe	1mW05hR9.exe
PID 4320 wrote to memory of 3288	4320	eq7EB65.exe	1mW05hR9.exe
PID 4320 wrote to memory of 3288	4320	eq7EB65.exe	1mW05hR9.exe
PID 3288 wrote to memory of 1256	3288	1mW05hR9.exe	AppLaunch.exe
PID 3288 wrote to memory of 1256	3288	1mW05hR9.exe	AppLaunch.exe
PID 3288 wrote to memory of 1256	3288	1mW05hR9.exe	AppLaunch.exe
PID 3288 wrote to memory of 1256	3288	1mW05hR9.exe	AppLaunch.exe
PID 3288 wrote to memory of 1256	3288	1mW05hR9.exe	AppLaunch.exe
PID 3288 wrote to memory of 1256	3288	1mW05hR9.exe	AppLaunch.exe
PID 3288 wrote to memory of 1256	3288	1mW05hR9.exe	AppLaunch.exe
PID 3288 wrote to memory of 1256	3288	1mW05hR9.exe	AppLaunch.exe
PID 4320 wrote to memory of 4472	4320	eq7EB65.exe	2IL7615.exe
PID 4320 wrote to memory of 4472	4320	eq7EB65.exe	2IL7615.exe
PID 4320 wrote to memory of 4472	4320	eq7EB65.exe	2IL7615.exe
PID 4472 wrote to memory of 4676	4472	2IL7615.exe	AppLaunch.exe
PID 4472 wrote to memory of 4676	4472	2IL7615.exe	AppLaunch.exe
PID 4472 wrote to memory of 4676	4472	2IL7615.exe	AppLaunch.exe
PID 4472 wrote to memory of 4676	4472	2IL7615.exe	AppLaunch.exe
PID 4472 wrote to memory of 4676	4472	2IL7615.exe	AppLaunch.exe
PID 4472 wrote to memory of 4676	4472	2IL7615.exe	AppLaunch.exe
PID 4472 wrote to memory of 4676	4472	2IL7615.exe	AppLaunch.exe
PID 4472 wrote to memory of 4676	4472	2IL7615.exe	AppLaunch.exe
PID 4472 wrote to memory of 4676	4472	2IL7615.exe	AppLaunch.exe
PID 4472 wrote to memory of 4676	4472	2IL7615.exe	AppLaunch.exe
PID 3144 wrote to memory of 4540	3144	fff53a878cc4bf75cd2f5a6ea052244eda18185761d3173fcd0c10469adce0d6.exe	3NI02mm.exe
PID 3144 wrote to memory of 4540	3144	fff53a878cc4bf75cd2f5a6ea052244eda18185761d3173fcd0c10469adce0d6.exe	3NI02mm.exe
PID 3144 wrote to memory of 4540	3144	fff53a878cc4bf75cd2f5a6ea052244eda18185761d3173fcd0c10469adce0d6.exe	3NI02mm.exe
PID 4540 wrote to memory of 2376	4540	3NI02mm.exe	AppLaunch.exe
PID 4540 wrote to memory of 2376	4540	3NI02mm.exe	AppLaunch.exe
PID 4540 wrote to memory of 2376	4540	3NI02mm.exe	AppLaunch.exe
PID 4540 wrote to memory of 2376	4540	3NI02mm.exe	AppLaunch.exe
PID 4540 wrote to memory of 2376	4540	3NI02mm.exe	AppLaunch.exe
PID 4540 wrote to memory of 2376	4540	3NI02mm.exe	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\fff53a878cc4bf75cd2f5a6ea052244eda18185761d3173fcd0c10469adce0d6.exe
"C:\Users\Admin\AppData\Local\Temp\fff53a878cc4bf75cd2f5a6ea052244eda18185761d3173fcd0c10469adce0d6.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3144

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\eq7EB65.exe
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\eq7EB65.exe
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4320

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1mW05hR9.exe
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1mW05hR9.exe
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3288

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
4⤵
- Modifies Windows Defender Real-time Protection settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1256

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3288 -s 564
4⤵
- Program crash
PID:4196

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2IL7615.exe
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2IL7615.exe
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4472

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
4⤵
PID:4676

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4472 -s 136
4⤵
- Program crash
PID:1068

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3NI02mm.exe
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3NI02mm.exe
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4540

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:2376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4540 -s 568
3⤵
- Program crash
PID:3840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3288 -ip 3288
1⤵
PID:1020

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4472 -ip 4472
1⤵
PID:552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4540 -ip 4540
1⤵
PID:1624

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3NI02mm.exe
Filesize
896KB

MD5
1b03d1a599fe2b528de2ab58cadf06ce

SHA1
39bba094894b5fc7d2b4dd7b5e9751d79080f1e4

SHA256
a0aef99670f72d858bf596dafc4807222e01941b8481e084870388a0412bdf46

SHA512
2644770935bb7e2c3228581c45774285584a7c594497b2a3568c86ae7225eafd01ef74f6a7b2c1862d52ec1d9ac1ff85512df1ba4c203e96b2857958bf33a665

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\eq7EB65.exe
Filesize
534KB

MD5
9bb62ac4c4a11244ac2d48acc361a173

SHA1
cb21091838b45262bc60a3978fe9fbd10a287359

SHA256
50bd44f2f38a1486ec19c1450c215b29968172d80ac2a0c8a0ca89c8102c615b

SHA512
a8341626d729084d0db2649c0f818174168a908e76c62f1fc07a1bf6b444f7e95a027728e8bca38915551aa3b66cb1802702b00d5992f8ac609011533c2aadaa

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1mW05hR9.exe
Filesize
232KB

MD5
3ff825411b1fe07e712a5dcae34f80eb

SHA1
e3e4358cabfa74d6e36e26754b01ed78434a6877

SHA256
69bba958a5dcd8650921b25d978c4847819eb83adc143ba2bd396811d7d73739

SHA512
325c098b5a0a0ffee16a6074616126f9f4c7930b74507d38c63a294f659ab26fe1674af85a8ff495bd268aa821cc9d85f80f11ab1e7f828015920220e456ab81

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2IL7615.exe
Filesize
1.1MB

MD5
ab7bca2a84b52b77d01bcfb149e5b8dd

SHA1
27c5a572787ec979aca90d0b2b19c7b6cb35d122

SHA256
5bcd00727a0ee6755aeea34aa9e091894cdeb0c32714dfbe97d6b1fb1e1d0503

SHA512
453fdff06af99ccc261f692545341474453c1a2ee566c11cab646e9d869382145d59968dea7ba80812c2b4c8347bc220eef4153cb538088e165064630eb7ef6a

Download Submit
memory/1256-14-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1256-15-0x0000000074ADE000-0x0000000074ADF000-memory.dmp

Filesize
4KB

Download
memory/2376-26-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4676-19-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4676-22-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4676-20-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download