mystic | be3323c3b2bd6ba736703199d528de6bf1396e8a7c6b9b58e4ca31fda43b00e0

Analysis

max time kernel
148s
max time network
153s
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 08:41

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General

Target

4cc86e1dc4a166b675f01f27f52e179d83773f43736e54f40427866d6708ef05.exe
Size

389KB
MD5

cbc1bc876e032088ab512403204cc827
SHA1

aa349b052ff18c150118965df111e3b9e256cfcc
SHA256

4cc86e1dc4a166b675f01f27f52e179d83773f43736e54f40427866d6708ef05
SHA512

cc78286a9dbf4ab59aa606c22097a97cd64309f6aac55b9fdf7c673ead1d6f1f9a1b16f99233639a6f811bc931d23627b06265c9304e80669bdee46e19bfb879
SSDEEP

12288:tMr3y90HFeSD9i3YJTUs2Wug+4+wS7EFut60WtNV/c7FD:yyWFeSDM3YRz2WuHUSooI043qD

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
behavioral6/memory/512-7-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral6/memory/512-9-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral6/memory/512-11-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral6/memory/512-8-0x0000000000400000-0x0000000000433000-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

behavioral6/memory/3564-15-0x0000000000400000-0x000000000043C000-memory.dmp family_redline
Executes dropped EXE 2 IoCs

Processes:

3BA464nZ.exe4Np6Gi3.exe

pid process

4400 3BA464nZ.exe
1068 4Np6Gi3.exe

resource	yara_rule
behavioral6/memory/3564-15-0x0000000000400000-0x000000000043C000-memory.dmp	family_redline

pid	process
4400	3BA464nZ.exe
1068	4Np6Gi3.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

4cc86e1dc4a166b675f01f27f52e179d83773f43736e54f40427866d6708ef05.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\\\""	4cc86e1dc4a166b675f01f27f52e179d83773f43736e54f40427866d6708ef05.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

3BA464nZ.exe4Np6Gi3.exe

description pid process target process

PID 4400 set thread context of 512 4400 3BA464nZ.exe AppLaunch.exe
PID 1068 set thread context of 3564 1068 4Np6Gi3.exe AppLaunch.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1324 512 WerFault.exe AppLaunch.exe

description	pid	process	target process
PID 4400 set thread context of 512	4400	3BA464nZ.exe	AppLaunch.exe
PID 1068 set thread context of 3564	1068	4Np6Gi3.exe	AppLaunch.exe

pid	pid_target	process	target process
1324	512	WerFault.exe	AppLaunch.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

4cc86e1dc4a166b675f01f27f52e179d83773f43736e54f40427866d6708ef05.exe3BA464nZ.exe4Np6Gi3.exe

description	pid	process	target process
PID 2672 wrote to memory of 4400	2672	4cc86e1dc4a166b675f01f27f52e179d83773f43736e54f40427866d6708ef05.exe	3BA464nZ.exe
PID 2672 wrote to memory of 4400	2672	4cc86e1dc4a166b675f01f27f52e179d83773f43736e54f40427866d6708ef05.exe	3BA464nZ.exe
PID 2672 wrote to memory of 4400	2672	4cc86e1dc4a166b675f01f27f52e179d83773f43736e54f40427866d6708ef05.exe	3BA464nZ.exe
PID 4400 wrote to memory of 512	4400	3BA464nZ.exe	AppLaunch.exe
PID 4400 wrote to memory of 512	4400	3BA464nZ.exe	AppLaunch.exe
PID 4400 wrote to memory of 512	4400	3BA464nZ.exe	AppLaunch.exe
PID 4400 wrote to memory of 512	4400	3BA464nZ.exe	AppLaunch.exe
PID 4400 wrote to memory of 512	4400	3BA464nZ.exe	AppLaunch.exe
PID 4400 wrote to memory of 512	4400	3BA464nZ.exe	AppLaunch.exe
PID 4400 wrote to memory of 512	4400	3BA464nZ.exe	AppLaunch.exe
PID 4400 wrote to memory of 512	4400	3BA464nZ.exe	AppLaunch.exe
PID 4400 wrote to memory of 512	4400	3BA464nZ.exe	AppLaunch.exe
PID 4400 wrote to memory of 512	4400	3BA464nZ.exe	AppLaunch.exe
PID 2672 wrote to memory of 1068	2672	4cc86e1dc4a166b675f01f27f52e179d83773f43736e54f40427866d6708ef05.exe	4Np6Gi3.exe
PID 2672 wrote to memory of 1068	2672	4cc86e1dc4a166b675f01f27f52e179d83773f43736e54f40427866d6708ef05.exe	4Np6Gi3.exe
PID 2672 wrote to memory of 1068	2672	4cc86e1dc4a166b675f01f27f52e179d83773f43736e54f40427866d6708ef05.exe	4Np6Gi3.exe
PID 1068 wrote to memory of 3564	1068	4Np6Gi3.exe	AppLaunch.exe
PID 1068 wrote to memory of 3564	1068	4Np6Gi3.exe	AppLaunch.exe
PID 1068 wrote to memory of 3564	1068	4Np6Gi3.exe	AppLaunch.exe
PID 1068 wrote to memory of 3564	1068	4Np6Gi3.exe	AppLaunch.exe
PID 1068 wrote to memory of 3564	1068	4Np6Gi3.exe	AppLaunch.exe
PID 1068 wrote to memory of 3564	1068	4Np6Gi3.exe	AppLaunch.exe
PID 1068 wrote to memory of 3564	1068	4Np6Gi3.exe	AppLaunch.exe
PID 1068 wrote to memory of 3564	1068	4Np6Gi3.exe	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\4cc86e1dc4a166b675f01f27f52e179d83773f43736e54f40427866d6708ef05.exe
"C:\Users\Admin\AppData\Local\Temp\4cc86e1dc4a166b675f01f27f52e179d83773f43736e54f40427866d6708ef05.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2672

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3BA464nZ.exe
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3BA464nZ.exe
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4400

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
3⤵
PID:512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 512 -s 540
4⤵
- Program crash
PID:1324

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4Np6Gi3.exe
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4Np6Gi3.exe
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1068

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
3⤵
PID:3564

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 512 -ip 512
1⤵
PID:2452

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\3BA464nZ.exe
Filesize
300KB

MD5
784667bb96ccb30c4cf44f2c5f493769

SHA1
28185165ab4dbbb4a139ae1af0bb6934ebe05c04

SHA256
1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9

SHA512
62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4Np6Gi3.exe
Filesize
339KB

MD5
14d9834611ad581afcfea061652ff6cb

SHA1
802f964d0be7858eb2f1e7c6fcda03501fd1b71c

SHA256
e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60

SHA512
cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5

Download Submit
memory/512-7-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/512-9-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/512-11-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/512-8-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/3564-15-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3564-16-0x00000000076A0000-0x0000000007C44000-memory.dmp

Filesize
5.6MB

Download
memory/3564-17-0x00000000071D0000-0x0000000007262000-memory.dmp

Filesize
584KB

Download
memory/3564-18-0x0000000002600000-0x000000000260A000-memory.dmp

Filesize
40KB

Download
memory/3564-19-0x0000000008270000-0x0000000008888000-memory.dmp

Filesize
6.1MB

Download
memory/3564-20-0x0000000007540000-0x000000000764A000-memory.dmp

Filesize
1.0MB

Download
memory/3564-21-0x00000000073F0000-0x0000000007402000-memory.dmp

Filesize
72KB

Download
memory/3564-22-0x0000000007470000-0x00000000074AC000-memory.dmp

Filesize
240KB

Download
memory/3564-23-0x00000000074B0000-0x00000000074FC000-memory.dmp

Filesize
304KB

Download