mystic | 3bad5318d1eadf9f6d544fc5ed49c1e737fb2db130f60b70bab6f26392c87c30

Analysis

max time kernel
146s
max time network
156s
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 10:50

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General

Target

cbf11756881901fd292b570bc3bb19b579c924b2d7f37bb2cf69de109a1da4f7.exe
Size

398KB
MD5

6926a7c5164bb1bce0fb0fc33212c8b6
SHA1

cda8612e09133e99c3ff370a94c5cca211e0124b
SHA256

cbf11756881901fd292b570bc3bb19b579c924b2d7f37bb2cf69de109a1da4f7
SHA512

2202c376244694891ea3ee0498cb28078471ce17f274875baa4065cbb65568a3e62bc95b21e60893c0896f4878751ccee533bec6d58821e1f059c6e9dcde79e1
SSDEEP

6144:Kly+bnr+1p0yN90QEFEEnhxIdGdj8+bRLW0V7t5J56AVOL+tBckozYmN8T:LMrxy90DEEwm8KLW0pt5J5pV8+okcE

Score

10^/10

mystic redline kukish infostealer persistence stealer

Malware Config

Extracted

Family

redline

Botnet

kukish

77.91.124.55:19071

Signatures

Detect Mystic stealer payload 4 IoCs

Processes:

resource	yara_rule
behavioral17/memory/4296-7-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral17/memory/4296-8-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral17/memory/4296-11-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral17/memory/4296-9-0x0000000000400000-0x0000000000432000-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

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2kD101de.exe	family_redline
behavioral17/memory/1220-16-0x00000000000B0000-0x00000000000EE000-memory.dmp	family_redline

Executes dropped EXE 2 IoCs

Processes:

1cK26ZH8.exe2kD101de.exe

pid process

3044 1cK26ZH8.exe
1220 2kD101de.exe

pid	process
3044	1cK26ZH8.exe
1220	2kD101de.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

cbf11756881901fd292b570bc3bb19b579c924b2d7f37bb2cf69de109a1da4f7.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\\\""	cbf11756881901fd292b570bc3bb19b579c924b2d7f37bb2cf69de109a1da4f7.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

1cK26ZH8.exe

description pid process target process

PID 3044 set thread context of 4296 3044 1cK26ZH8.exe AppLaunch.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4948 4296 WerFault.exe AppLaunch.exe

description	pid	process	target process
PID 3044 set thread context of 4296	3044	1cK26ZH8.exe	AppLaunch.exe

pid	pid_target	process	target process
4948	4296	WerFault.exe	AppLaunch.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

cbf11756881901fd292b570bc3bb19b579c924b2d7f37bb2cf69de109a1da4f7.exe1cK26ZH8.exe

description	pid	process	target process
PID 2496 wrote to memory of 3044	2496	cbf11756881901fd292b570bc3bb19b579c924b2d7f37bb2cf69de109a1da4f7.exe	1cK26ZH8.exe
PID 2496 wrote to memory of 3044	2496	cbf11756881901fd292b570bc3bb19b579c924b2d7f37bb2cf69de109a1da4f7.exe	1cK26ZH8.exe
PID 2496 wrote to memory of 3044	2496	cbf11756881901fd292b570bc3bb19b579c924b2d7f37bb2cf69de109a1da4f7.exe	1cK26ZH8.exe
PID 3044 wrote to memory of 4296	3044	1cK26ZH8.exe	AppLaunch.exe
PID 3044 wrote to memory of 4296	3044	1cK26ZH8.exe	AppLaunch.exe
PID 3044 wrote to memory of 4296	3044	1cK26ZH8.exe	AppLaunch.exe
PID 3044 wrote to memory of 4296	3044	1cK26ZH8.exe	AppLaunch.exe
PID 3044 wrote to memory of 4296	3044	1cK26ZH8.exe	AppLaunch.exe
PID 3044 wrote to memory of 4296	3044	1cK26ZH8.exe	AppLaunch.exe
PID 3044 wrote to memory of 4296	3044	1cK26ZH8.exe	AppLaunch.exe
PID 3044 wrote to memory of 4296	3044	1cK26ZH8.exe	AppLaunch.exe
PID 3044 wrote to memory of 4296	3044	1cK26ZH8.exe	AppLaunch.exe
PID 3044 wrote to memory of 4296	3044	1cK26ZH8.exe	AppLaunch.exe
PID 2496 wrote to memory of 1220	2496	cbf11756881901fd292b570bc3bb19b579c924b2d7f37bb2cf69de109a1da4f7.exe	2kD101de.exe
PID 2496 wrote to memory of 1220	2496	cbf11756881901fd292b570bc3bb19b579c924b2d7f37bb2cf69de109a1da4f7.exe	2kD101de.exe
PID 2496 wrote to memory of 1220	2496	cbf11756881901fd292b570bc3bb19b579c924b2d7f37bb2cf69de109a1da4f7.exe	2kD101de.exe

C:\Users\Admin\AppData\Local\Temp\cbf11756881901fd292b570bc3bb19b579c924b2d7f37bb2cf69de109a1da4f7.exe
"C:\Users\Admin\AppData\Local\Temp\cbf11756881901fd292b570bc3bb19b579c924b2d7f37bb2cf69de109a1da4f7.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2496

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1cK26ZH8.exe
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1cK26ZH8.exe
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3044

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
3⤵
PID:4296

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4296 -s 540
4⤵
- Program crash
PID:4948

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2kD101de.exe
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2kD101de.exe
2⤵
- Executes dropped EXE
PID:1220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4296 -ip 4296
1⤵
PID:532

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\1cK26ZH8.exe

Filesize
320KB

MD5
4553309910d582c986b08aa928cb1629

SHA1
4f32a837851d428885aa8056f2bb16b56fdbce6e

SHA256
c0e7fb211409b99364e7342b8779e5d5f2c1873d8e1bfa2a136afe7a7688eae2

SHA512
472979041429708bf4db8e57ae57c2deeb7fe707f34d86c2497928cf2dcfeb23a197ec103950827239027861a58915a24455d4bc7ea0e3dfd8013ea01d0f8262

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2kD101de.exe

Filesize
222KB

MD5
4fb89f343f4a9f44d4aba86ea58fb242

SHA1
a7b4f7f647a892f03534540ef6ef64fcccd4bf57

SHA256
c338beea4f1b09a9299c62266012670fa5595c688c3a9984387e1a9bede7ebcc

SHA512
80d15c889babacd7b78766e7d8aa5a4efe8743b9922730488156e44da9e80cc1b22773f89537a63340cc1d07f46b9142879c58f5bf4725b76ddace01dd8ca52f

Download Submit
memory/1220-17-0x0000000007460000-0x0000000007A04000-memory.dmp

Filesize
5.6MB

Download
memory/1220-20-0x0000000073F90000-0x0000000074740000-memory.dmp

Filesize
7.7MB

Download
memory/1220-27-0x0000000073F90000-0x0000000074740000-memory.dmp

Filesize
7.7MB

Download
memory/1220-26-0x0000000073F9E000-0x0000000073F9F000-memory.dmp

Filesize
4KB

Download
memory/1220-15-0x0000000073F9E000-0x0000000073F9F000-memory.dmp

Filesize
4KB

Download
memory/1220-16-0x00000000000B0000-0x00000000000EE000-memory.dmp

Filesize
248KB

Download
memory/1220-25-0x0000000007250000-0x000000000729C000-memory.dmp

Filesize
304KB

Download
memory/1220-18-0x0000000006F70000-0x0000000007002000-memory.dmp

Filesize
584KB

Download
memory/1220-19-0x00000000024C0000-0x00000000024CA000-memory.dmp

Filesize
40KB

Download
memory/1220-24-0x0000000007210000-0x000000000724C000-memory.dmp

Filesize
240KB

Download
memory/1220-21-0x0000000008030000-0x0000000008648000-memory.dmp

Filesize
6.1MB

Download
memory/1220-22-0x00000000072E0000-0x00000000073EA000-memory.dmp

Filesize
1.0MB

Download
memory/1220-23-0x00000000070B0000-0x00000000070C2000-memory.dmp

Filesize
72KB

Download
memory/4296-11-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4296-7-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4296-9-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4296-8-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download