mystic | 35fa914c6357cde578322016bb343396ee5cbe965e37dbbc27e58563c27f3d00

Analysis

max time kernel
149s
max time network
150s
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 10:02

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General

Target

b654b420110d68633e1d1bfec8f7c1721db51174713f79737cd5cbbef252d545.exe
Size

389KB
MD5

7b2538e4166434beba6464390ca828d4
SHA1

0594276066b13c610d5d860d7a3cf419255b1cd6
SHA256

b654b420110d68633e1d1bfec8f7c1721db51174713f79737cd5cbbef252d545
SHA512

5ded06a6f79f3c3f67e0a7c345bc16b746149cf3b30eed735a10e368961773feec3c08e2004340f7bdda0ceab360e2cd163359ab61ca439161f8c5de5bc08eb9
SSDEEP

12288:3Mrfy90hFeSD9i3YJTUs2Wug+4+wS7EFut60WtNV/c7Fy:AyAFeSDM3YRz2WuHUSooI043qy

Score

10^/10

mystic redline taiga infostealer persistence stealer

Malware Config

Extracted

Family

redline

Botnet

taiga

5.42.92.51:19057

Signatures

Detect Mystic stealer payload 4 IoCs

Processes:

resource	yara_rule
behavioral16/memory/1820-7-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral16/memory/1820-9-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral16/memory/1820-11-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral16/memory/1820-8-0x0000000000400000-0x0000000000433000-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 1 IoCs

Processes:

resource	yara_rule
behavioral16/memory/3136-15-0x0000000000400000-0x000000000043C000-memory.dmp	family_redline

Executes dropped EXE 2 IoCs

Processes:

3iH523cc.exe4MN1kl1.exe

pid process

3812 3iH523cc.exe
868 4MN1kl1.exe

pid	process
3812	3iH523cc.exe
868	4MN1kl1.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

b654b420110d68633e1d1bfec8f7c1721db51174713f79737cd5cbbef252d545.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\\\""	b654b420110d68633e1d1bfec8f7c1721db51174713f79737cd5cbbef252d545.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

3iH523cc.exe4MN1kl1.exe

description	pid	process	target process
PID 3812 set thread context of 1820	3812	3iH523cc.exe	AppLaunch.exe
PID 868 set thread context of 3136	868	4MN1kl1.exe	AppLaunch.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3976 1820 WerFault.exe AppLaunch.exe

pid	pid_target	process	target process
3976	1820	WerFault.exe	AppLaunch.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

b654b420110d68633e1d1bfec8f7c1721db51174713f79737cd5cbbef252d545.exe3iH523cc.exe4MN1kl1.exe

description	pid	process	target process
PID 2540 wrote to memory of 3812	2540	b654b420110d68633e1d1bfec8f7c1721db51174713f79737cd5cbbef252d545.exe	3iH523cc.exe
PID 2540 wrote to memory of 3812	2540	b654b420110d68633e1d1bfec8f7c1721db51174713f79737cd5cbbef252d545.exe	3iH523cc.exe
PID 2540 wrote to memory of 3812	2540	b654b420110d68633e1d1bfec8f7c1721db51174713f79737cd5cbbef252d545.exe	3iH523cc.exe
PID 3812 wrote to memory of 1820	3812	3iH523cc.exe	AppLaunch.exe
PID 3812 wrote to memory of 1820	3812	3iH523cc.exe	AppLaunch.exe
PID 3812 wrote to memory of 1820	3812	3iH523cc.exe	AppLaunch.exe
PID 3812 wrote to memory of 1820	3812	3iH523cc.exe	AppLaunch.exe
PID 3812 wrote to memory of 1820	3812	3iH523cc.exe	AppLaunch.exe
PID 3812 wrote to memory of 1820	3812	3iH523cc.exe	AppLaunch.exe
PID 3812 wrote to memory of 1820	3812	3iH523cc.exe	AppLaunch.exe
PID 3812 wrote to memory of 1820	3812	3iH523cc.exe	AppLaunch.exe
PID 3812 wrote to memory of 1820	3812	3iH523cc.exe	AppLaunch.exe
PID 3812 wrote to memory of 1820	3812	3iH523cc.exe	AppLaunch.exe
PID 2540 wrote to memory of 868	2540	b654b420110d68633e1d1bfec8f7c1721db51174713f79737cd5cbbef252d545.exe	4MN1kl1.exe
PID 2540 wrote to memory of 868	2540	b654b420110d68633e1d1bfec8f7c1721db51174713f79737cd5cbbef252d545.exe	4MN1kl1.exe
PID 2540 wrote to memory of 868	2540	b654b420110d68633e1d1bfec8f7c1721db51174713f79737cd5cbbef252d545.exe	4MN1kl1.exe
PID 868 wrote to memory of 3136	868	4MN1kl1.exe	AppLaunch.exe
PID 868 wrote to memory of 3136	868	4MN1kl1.exe	AppLaunch.exe
PID 868 wrote to memory of 3136	868	4MN1kl1.exe	AppLaunch.exe
PID 868 wrote to memory of 3136	868	4MN1kl1.exe	AppLaunch.exe
PID 868 wrote to memory of 3136	868	4MN1kl1.exe	AppLaunch.exe
PID 868 wrote to memory of 3136	868	4MN1kl1.exe	AppLaunch.exe
PID 868 wrote to memory of 3136	868	4MN1kl1.exe	AppLaunch.exe
PID 868 wrote to memory of 3136	868	4MN1kl1.exe	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\b654b420110d68633e1d1bfec8f7c1721db51174713f79737cd5cbbef252d545.exe
"C:\Users\Admin\AppData\Local\Temp\b654b420110d68633e1d1bfec8f7c1721db51174713f79737cd5cbbef252d545.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2540

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3iH523cc.exe
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3iH523cc.exe
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3812

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
3⤵
PID:1820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1820 -s 540
4⤵
- Program crash
PID:3976

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4MN1kl1.exe
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4MN1kl1.exe
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:868

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
3⤵
PID:3136

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1820 -ip 1820
1⤵
PID:1772

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3iH523cc.exe
Filesize
300KB

MD5
784667bb96ccb30c4cf44f2c5f493769

SHA1
28185165ab4dbbb4a139ae1af0bb6934ebe05c04

SHA256
1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9

SHA512
62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4MN1kl1.exe
Filesize
339KB

MD5
14d9834611ad581afcfea061652ff6cb

SHA1
802f964d0be7858eb2f1e7c6fcda03501fd1b71c

SHA256
e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60

SHA512
cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5

Download Submit
memory/1820-7-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1820-9-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1820-11-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1820-8-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/3136-15-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3136-16-0x00000000080C0000-0x0000000008664000-memory.dmp

Filesize
5.6MB

Download
memory/3136-17-0x0000000007BB0000-0x0000000007C42000-memory.dmp

Filesize
584KB

Download
memory/3136-18-0x0000000005140000-0x000000000514A000-memory.dmp

Filesize
40KB

Download
memory/3136-19-0x0000000008C90000-0x00000000092A8000-memory.dmp

Filesize
6.1MB

Download
memory/3136-20-0x0000000007E80000-0x0000000007F8A000-memory.dmp

Filesize
1.0MB

Download
memory/3136-21-0x0000000007D40000-0x0000000007D52000-memory.dmp

Filesize
72KB

Download
memory/3136-22-0x0000000007DB0000-0x0000000007DEC000-memory.dmp

Filesize
240KB

Download
memory/3136-23-0x0000000007DF0000-0x0000000007E3C000-memory.dmp

Filesize
304KB

Download