mystic | 47203fc7445c1e0e06643f363dd7d86ccc46b70ab234e5fbfe72badfdd6704ae

Analysis

max time kernel
143s
max time network
151s
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 08:22

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General

Target

532834d8ce7000d8e7eb38c91e27411e3b18295ef7db64dc83c3982ac0a9ae8e.exe
Size

640KB
MD5

4e69763de347a093660a29f805ebc4c2
SHA1

36a39f3eb16a81a3b16e8b65a851333825840cac
SHA256

532834d8ce7000d8e7eb38c91e27411e3b18295ef7db64dc83c3982ac0a9ae8e
SHA512

f1be611c111dc3893577b2cbd02dbfade9e2e06a799433ca037e74a661619a5919bfb44a058b982938e3c66df2feee4bc5ce194d83fd42edd6fbdd5e3555fab3
SSDEEP

12288:nMrjy90j+Hx7kmR2WHBkmHN8wfWSq6vFjMaXXRLc+:0y4+HkM5NBWSqWFjM+

Score

10^/10

mystic redline lutyr infostealer persistence stealer

Malware Config

Extracted

Family

redline

Botnet

lutyr

77.91.124.55:19071

Signatures

Detect Mystic stealer payload 4 IoCs

resource	yara_rule
behavioral4/memory/2008-14-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral4/memory/2008-16-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral4/memory/2008-15-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral4/memory/2008-18-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family

Mystic
Mystic is an infostealer written in C++.
stealer mystic
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

RedLine payload 2 IoCs

resource	yara_rule
behavioral4/files/0x00070000000233cc-20.dat	family_redline
behavioral4/memory/852-22-0x0000000000D40000-0x0000000000D7E000-memory.dmp	family_redline

Executes dropped EXE 3 IoCs

pid	Process
4632	CS5fM9Zp.exe
2768	1Kp00Bb6.exe
852	2yo574uc.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_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	532834d8ce7000d8e7eb38c91e27411e3b18295ef7db64dc83c3982ac0a9ae8e.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\\\""	CS5fM9Zp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2768 set thread context of 2008	2768	1Kp00Bb6.exe	83

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2336	2768	WerFault.exe	82
4980	2008	WerFault.exe	83

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3888 wrote to memory of 4632	3888	532834d8ce7000d8e7eb38c91e27411e3b18295ef7db64dc83c3982ac0a9ae8e.exe	81
PID 3888 wrote to memory of 4632	3888	532834d8ce7000d8e7eb38c91e27411e3b18295ef7db64dc83c3982ac0a9ae8e.exe	81
PID 3888 wrote to memory of 4632	3888	532834d8ce7000d8e7eb38c91e27411e3b18295ef7db64dc83c3982ac0a9ae8e.exe	81
PID 4632 wrote to memory of 2768	4632	CS5fM9Zp.exe	82
PID 4632 wrote to memory of 2768	4632	CS5fM9Zp.exe	82
PID 4632 wrote to memory of 2768	4632	CS5fM9Zp.exe	82
PID 2768 wrote to memory of 2008	2768	1Kp00Bb6.exe	83
PID 2768 wrote to memory of 2008	2768	1Kp00Bb6.exe	83
PID 2768 wrote to memory of 2008	2768	1Kp00Bb6.exe	83
PID 2768 wrote to memory of 2008	2768	1Kp00Bb6.exe	83
PID 2768 wrote to memory of 2008	2768	1Kp00Bb6.exe	83
PID 2768 wrote to memory of 2008	2768	1Kp00Bb6.exe	83
PID 2768 wrote to memory of 2008	2768	1Kp00Bb6.exe	83
PID 2768 wrote to memory of 2008	2768	1Kp00Bb6.exe	83
PID 2768 wrote to memory of 2008	2768	1Kp00Bb6.exe	83
PID 2768 wrote to memory of 2008	2768	1Kp00Bb6.exe	83
PID 4632 wrote to memory of 852	4632	CS5fM9Zp.exe	89
PID 4632 wrote to memory of 852	4632	CS5fM9Zp.exe	89
PID 4632 wrote to memory of 852	4632	CS5fM9Zp.exe	89

C:\Users\Admin\AppData\Local\Temp\532834d8ce7000d8e7eb38c91e27411e3b18295ef7db64dc83c3982ac0a9ae8e.exe
"C:\Users\Admin\AppData\Local\Temp\532834d8ce7000d8e7eb38c91e27411e3b18295ef7db64dc83c3982ac0a9ae8e.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3888
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CS5fM9Zp.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CS5fM9Zp.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:4632
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Kp00Bb6.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Kp00Bb6.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2768
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:2008
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2008 -s 540
        5⤵
        Program crash
        
        PID:4980
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2768 -s 592
      4⤵
      Program crash
      PID:2336
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yo574uc.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yo574uc.exe
    3⤵
    - Executes dropped EXE
    PID:852

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2768 -ip 2768
1⤵
PID:4740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2008 -ip 2008
1⤵
PID:3344

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CS5fM9Zp.exe

Filesize
443KB

MD5
d63f862c77881b4aac88a85221dd0bd6

SHA1
50c555b191de891fe88facfd58b4424a80e16281

SHA256
eadf9a0e0d90b9806a3474e0f0ba5a5a91d4e500fb32855a8072c19efab489ab

SHA512
25272dbfcd040394346ad4a3ef1057b8b84f22e7590fd92e93f12964365dfe7ed63ccc90fb501baf9e4e6b80695a5d725e115c74b99dc5c0d89f77a55c20d20a

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Kp00Bb6.exe

Filesize
422KB

MD5
7094c0d6453e0646d3db95aba72fa820

SHA1
e335985006dc9850e8b874b9afb49f28af867deb

SHA256
52d77de9b60f295e1c6fe439d8644be8963a7e4ba48d5319590cedd44e3c7311

SHA512
b37da45732f6d74c1461baf512b1b7893df65223acb5f9ae059c19914095f764a9deb79aecb77af2e7f6d67bb065d11ecafa6e09d1912aa860530b4c34f85fde

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yo574uc.exe

Filesize
222KB

MD5
87ff3c55c8c51bc6ac1df80df2dc6ba9

SHA1
5a40891a3886410c7aa8a9901f932eca5a1dfa6e

SHA256
cc3492e69148983784dd57c3537ac5ea81b066afa0ad0d6657ff0d58c56e5430

SHA512
b67b76d5b4e91811251befbb5ff5ab09936314a3cd3bc70d136782f72a4c210de1f25b1cdb1c75508e0d36decc7ce0a0ed9fb5a345981f26bd59a37cee95a78e

Download Submit
memory/852-27-0x0000000007E80000-0x0000000007F8A000-memory.dmp

Filesize
1.0MB

Download
memory/852-22-0x0000000000D40000-0x0000000000D7E000-memory.dmp

Filesize
248KB

Download
memory/852-23-0x0000000008010000-0x00000000085B4000-memory.dmp

Filesize
5.6MB

Download
memory/852-24-0x0000000007B00000-0x0000000007B92000-memory.dmp

Filesize
584KB

Download
memory/852-25-0x00000000050C0000-0x00000000050CA000-memory.dmp

Filesize
40KB

Download
memory/852-26-0x0000000008BE0000-0x00000000091F8000-memory.dmp

Filesize
6.1MB

Download
memory/852-28-0x0000000007C00000-0x0000000007C12000-memory.dmp

Filesize
72KB

Download
memory/852-29-0x0000000007D70000-0x0000000007DAC000-memory.dmp

Filesize
240KB

Download
memory/852-30-0x0000000007DB0000-0x0000000007DFC000-memory.dmp

Filesize
304KB

Download
memory/2008-15-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/2008-18-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/2008-16-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/2008-14-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads