mystic | 2dae798f2fcb49ad5f375700dcbe54c08e9cc5c25fe542ebd7939aa5f5f023aa

Analysis

max time kernel
143s
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
23-05-2024 18:47

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General

Target

a68d0534deb0e389e03aa786911c769caba8ce5acc03a27e3cfadf2a704811a7.exe
Size

382KB
MD5

9e5ad5eeb4977f30c2e8f627ba872e8b
SHA1

aa80020c366200674cf0d1e7fb5c6bedabd4b4f6
SHA256

a68d0534deb0e389e03aa786911c769caba8ce5acc03a27e3cfadf2a704811a7
SHA512

d63fcff0e2745681fe01bb7a426828bfb6483135f7119582c36cc8a3279e9d8a7cd91c9c4e337624269d84a24d15dbbfc8dea2841af51c080bc36d8003abd41c
SSDEEP

6144:KPy+bnr+Xp0yN90QEZgrMOM84oh7731r8xTughvpXMWDRS4h3J9lXXn1Sd:hMr3y90fE9xB7314rvpXhRd33tXn1C

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
behavioral14/memory/2444-7-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral14/memory/2444-8-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral14/memory/2444-11-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral14/memory/2444-9-0x0000000000400000-0x0000000000432000-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\2ZD438XK.exe	family_redline
behavioral14/memory/428-16-0x0000000000970000-0x00000000009AE000-memory.dmp	family_redline

Executes dropped EXE 2 IoCs

Processes:

1kY20cx0.exe2ZD438XK.exe

pid process

540 1kY20cx0.exe
428 2ZD438XK.exe

pid	process
540	1kY20cx0.exe
428	2ZD438XK.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

a68d0534deb0e389e03aa786911c769caba8ce5acc03a27e3cfadf2a704811a7.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\\\""	a68d0534deb0e389e03aa786911c769caba8ce5acc03a27e3cfadf2a704811a7.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

1kY20cx0.exe

description pid process target process

PID 540 set thread context of 2444 540 1kY20cx0.exe AppLaunch.exe
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

4900 2444 WerFault.exe AppLaunch.exe
3312 540 WerFault.exe 1kY20cx0.exe

description	pid	process	target process
PID 540 set thread context of 2444	540	1kY20cx0.exe	AppLaunch.exe

pid	pid_target	process	target process
4900	2444	WerFault.exe	AppLaunch.exe
3312	540	WerFault.exe	1kY20cx0.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

a68d0534deb0e389e03aa786911c769caba8ce5acc03a27e3cfadf2a704811a7.exe1kY20cx0.exe

description	pid	process	target process
PID 744 wrote to memory of 540	744	a68d0534deb0e389e03aa786911c769caba8ce5acc03a27e3cfadf2a704811a7.exe	1kY20cx0.exe
PID 744 wrote to memory of 540	744	a68d0534deb0e389e03aa786911c769caba8ce5acc03a27e3cfadf2a704811a7.exe	1kY20cx0.exe
PID 744 wrote to memory of 540	744	a68d0534deb0e389e03aa786911c769caba8ce5acc03a27e3cfadf2a704811a7.exe	1kY20cx0.exe
PID 540 wrote to memory of 2444	540	1kY20cx0.exe	AppLaunch.exe
PID 540 wrote to memory of 2444	540	1kY20cx0.exe	AppLaunch.exe
PID 540 wrote to memory of 2444	540	1kY20cx0.exe	AppLaunch.exe
PID 540 wrote to memory of 2444	540	1kY20cx0.exe	AppLaunch.exe
PID 540 wrote to memory of 2444	540	1kY20cx0.exe	AppLaunch.exe
PID 540 wrote to memory of 2444	540	1kY20cx0.exe	AppLaunch.exe
PID 540 wrote to memory of 2444	540	1kY20cx0.exe	AppLaunch.exe
PID 540 wrote to memory of 2444	540	1kY20cx0.exe	AppLaunch.exe
PID 540 wrote to memory of 2444	540	1kY20cx0.exe	AppLaunch.exe
PID 540 wrote to memory of 2444	540	1kY20cx0.exe	AppLaunch.exe
PID 744 wrote to memory of 428	744	a68d0534deb0e389e03aa786911c769caba8ce5acc03a27e3cfadf2a704811a7.exe	2ZD438XK.exe
PID 744 wrote to memory of 428	744	a68d0534deb0e389e03aa786911c769caba8ce5acc03a27e3cfadf2a704811a7.exe	2ZD438XK.exe
PID 744 wrote to memory of 428	744	a68d0534deb0e389e03aa786911c769caba8ce5acc03a27e3cfadf2a704811a7.exe	2ZD438XK.exe

C:\Users\Admin\AppData\Local\Temp\a68d0534deb0e389e03aa786911c769caba8ce5acc03a27e3cfadf2a704811a7.exe
"C:\Users\Admin\AppData\Local\Temp\a68d0534deb0e389e03aa786911c769caba8ce5acc03a27e3cfadf2a704811a7.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:744

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1kY20cx0.exe
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1kY20cx0.exe
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:540

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
3⤵
PID:2444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2444 -s 556
4⤵
- Program crash
PID:4900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 540 -s 152
3⤵
- Program crash
PID:3312

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2ZD438XK.exe
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2ZD438XK.exe
2⤵
- Executes dropped EXE
PID:428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2444 -ip 2444
1⤵
PID:3572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 540 -ip 540
1⤵
PID:1520

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1kY20cx0.exe
Filesize
295KB

MD5
542b4a3030dfa0a861ba6f782d6a6d0a

SHA1
ca71dbaac51113c3a6e77f04da2cf80af02b8905

SHA256
64844b2cdddd028c9f44f65658aa599cc805e33583e9da6a13decb55f5233fa6

SHA512
305c5073d28cb5fa0b85cba10ff854f81e51b4be194108b3dfc2a924811f3ec2889b69eaf24a4757a28de1f9d534edb2e5093384543a0c35fad9b06c6ad8e0ff

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2ZD438XK.exe
Filesize
222KB

MD5
9e5d54b37258affcaebea16eb6ddf8ce

SHA1
10698f249c1f60c06c437b00d841d1b2edf059c2

SHA256
246611f5c315dc21351ef2030a8a8fad5e8662896ebdf690d2ea039ceb895440

SHA512
5982a3bba80bec8bd0d842a20657ab048eff14d8edc015994ebfd8e6157dee49a731f5a3d84d1ae4c54e9701d8174d67107a01acdc74bf4ae9f413c43602d9be

Download Submit
memory/428-21-0x00000000087C0000-0x0000000008DD8000-memory.dmp

Filesize
6.1MB

Download
memory/428-20-0x0000000074820000-0x0000000074FD0000-memory.dmp

Filesize
7.7MB

Download
memory/428-27-0x0000000074820000-0x0000000074FD0000-memory.dmp

Filesize
7.7MB

Download
memory/428-26-0x000000007482E000-0x000000007482F000-memory.dmp

Filesize
4KB

Download
memory/428-15-0x000000007482E000-0x000000007482F000-memory.dmp

Filesize
4KB

Download
memory/428-16-0x0000000000970000-0x00000000009AE000-memory.dmp

Filesize
248KB

Download
memory/428-17-0x0000000007BF0000-0x0000000008194000-memory.dmp

Filesize
5.6MB

Download
memory/428-18-0x0000000007730000-0x00000000077C2000-memory.dmp

Filesize
584KB

Download
memory/428-19-0x0000000004D10000-0x0000000004D1A000-memory.dmp

Filesize
40KB

Download
memory/428-25-0x00000000079D0000-0x0000000007A1C000-memory.dmp

Filesize
304KB

Download
memory/428-24-0x0000000007990000-0x00000000079CC000-memory.dmp

Filesize
240KB

Download
memory/428-22-0x0000000007A40000-0x0000000007B4A000-memory.dmp

Filesize
1.0MB

Download
memory/428-23-0x0000000007930000-0x0000000007942000-memory.dmp

Filesize
72KB

Download
memory/2444-7-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2444-11-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2444-8-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2444-9-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download