mystic | cc5e37d73955fc0316a074c4b20f0296dee40952f8d275b2c6c6eb4eb0947059

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
24-05-2024 05:30

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General

Target

299e46ee08841fc6eb4d1c18d756d39f82a681622c3d6cb0e68ec7f71013a4d5.exe
Size

621KB
MD5

873fe20000f2954d9b2e2d3a1ee146ab
SHA1

6d076ad8ec8c2eba2a1e1cf43a0089377c61e9b7
SHA256

299e46ee08841fc6eb4d1c18d756d39f82a681622c3d6cb0e68ec7f71013a4d5
SHA512

95f67206b77726a45449e20586b0e50798d6f9ec0ced4ae0c6eae88501ad33c2c1b0f5dba7856acdb96a149d97732a7ed57f88d7c7f92141b6ed05f7b6f46fce
SSDEEP

12288:sMrPy90Hk8UpyDuuSZum4/9WArLJFskN/L5BLSXAAyesaNR:Lyz8gy9SArvsk1sAte5D

Score

10^/10

mystic persistence stealer

Malware Config

Signatures

Detect Mystic stealer payload 4 IoCs

Processes:

resource	yara_rule
behavioral5/memory/1796-20-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral5/memory/1796-21-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral5/memory/1796-24-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral5/memory/1796-22-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family

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

.NET Reactor proctector 2 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

Processes:

resource	yara_rule
behavioral5/memory/3904-8-0x0000000002470000-0x0000000002490000-memory.dmp	net_reactor
behavioral5/memory/3904-10-0x0000000004F50000-0x0000000004F6E000-memory.dmp	net_reactor

Executes dropped EXE 2 IoCs

Processes:

1xT09Op9.exe2wh3272.exe

pid process

3904 1xT09Op9.exe
4348 2wh3272.exe

pid	process
3904	1xT09Op9.exe
4348	2wh3272.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

299e46ee08841fc6eb4d1c18d756d39f82a681622c3d6cb0e68ec7f71013a4d5.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\\\""	299e46ee08841fc6eb4d1c18d756d39f82a681622c3d6cb0e68ec7f71013a4d5.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

2wh3272.exe

description pid process target process

PID 4348 set thread context of 1796 4348 2wh3272.exe AppLaunch.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

1xT09Op9.exe

description pid process

Token: SeDebugPrivilege 3904 1xT09Op9.exe

description	pid	process	target process
PID 4348 set thread context of 1796	4348	2wh3272.exe	AppLaunch.exe

description	pid	process
Token: SeDebugPrivilege	3904	1xT09Op9.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

299e46ee08841fc6eb4d1c18d756d39f82a681622c3d6cb0e68ec7f71013a4d5.exe2wh3272.exe

description	pid	process	target process
PID 4440 wrote to memory of 3904	4440	299e46ee08841fc6eb4d1c18d756d39f82a681622c3d6cb0e68ec7f71013a4d5.exe	1xT09Op9.exe
PID 4440 wrote to memory of 3904	4440	299e46ee08841fc6eb4d1c18d756d39f82a681622c3d6cb0e68ec7f71013a4d5.exe	1xT09Op9.exe
PID 4440 wrote to memory of 3904	4440	299e46ee08841fc6eb4d1c18d756d39f82a681622c3d6cb0e68ec7f71013a4d5.exe	1xT09Op9.exe
PID 4440 wrote to memory of 4348	4440	299e46ee08841fc6eb4d1c18d756d39f82a681622c3d6cb0e68ec7f71013a4d5.exe	2wh3272.exe
PID 4440 wrote to memory of 4348	4440	299e46ee08841fc6eb4d1c18d756d39f82a681622c3d6cb0e68ec7f71013a4d5.exe	2wh3272.exe
PID 4440 wrote to memory of 4348	4440	299e46ee08841fc6eb4d1c18d756d39f82a681622c3d6cb0e68ec7f71013a4d5.exe	2wh3272.exe
PID 4348 wrote to memory of 1796	4348	2wh3272.exe	AppLaunch.exe
PID 4348 wrote to memory of 1796	4348	2wh3272.exe	AppLaunch.exe
PID 4348 wrote to memory of 1796	4348	2wh3272.exe	AppLaunch.exe
PID 4348 wrote to memory of 1796	4348	2wh3272.exe	AppLaunch.exe
PID 4348 wrote to memory of 1796	4348	2wh3272.exe	AppLaunch.exe
PID 4348 wrote to memory of 1796	4348	2wh3272.exe	AppLaunch.exe
PID 4348 wrote to memory of 1796	4348	2wh3272.exe	AppLaunch.exe
PID 4348 wrote to memory of 1796	4348	2wh3272.exe	AppLaunch.exe
PID 4348 wrote to memory of 1796	4348	2wh3272.exe	AppLaunch.exe
PID 4348 wrote to memory of 1796	4348	2wh3272.exe	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\299e46ee08841fc6eb4d1c18d756d39f82a681622c3d6cb0e68ec7f71013a4d5.exe
"C:\Users\Admin\AppData\Local\Temp\299e46ee08841fc6eb4d1c18d756d39f82a681622c3d6cb0e68ec7f71013a4d5.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4440
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1xT09Op9.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1xT09Op9.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:3904
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2wh3272.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2wh3272.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4348
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:1796

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

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\1xT09Op9.exe

Filesize
195KB

MD5
7f726f7dac36a27880ea545866534dda

SHA1
a644a86f8ffe8497101eb2c8ef69b859fb51119d

SHA256
7d8062c6ae88e04ecadb6f8eb85e1d77caba2cb70fed241f04454fd5d70ced2a

SHA512
8d8216a173bf1b498e5bf6d9292b05cd27b913c3203e296d55b169a1980bc38d8589bdb3e88a685a238183a60b8e86049cf280dd47143445c1ba5b6d287c2775

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2wh3272.exe

Filesize
1.1MB

MD5
a1c1c44e837edbc2d55d33ba9620a109

SHA1
0ba4e08d7b6f17f968d1f7cad75d0a3885bae998

SHA256
4160c00350706d7630b0a8bfb47722e7ec956858ab07d5adc9345e37ccb751e5

SHA512
75267e9d0652e006107506457c5253fe701149888ad977d95f52d215410b18e3b145c8779ae389b718f090c5aa41d614e45deb38a96852a07a299a5b075c02bc

Download Submit
memory/1796-22-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1796-24-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1796-21-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1796-20-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/3904-12-0x0000000005070000-0x0000000005102000-memory.dmp

Filesize
584KB

Download
memory/3904-13-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/3904-14-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/3904-16-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/3904-10-0x0000000004F50000-0x0000000004F6E000-memory.dmp

Filesize
120KB

Download
memory/3904-11-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/3904-9-0x0000000004990000-0x0000000004F34000-memory.dmp

Filesize
5.6MB

Download
memory/3904-8-0x0000000002470000-0x0000000002490000-memory.dmp

Filesize
128KB

Download
memory/3904-7-0x0000000074B5E000-0x0000000074B5F000-memory.dmp

Filesize
4KB

Download