mystic | 47203fc7445c1e0e06643f363dd7d86ccc46b70ab234e5fbfe72badfdd6704ae

Analysis

max time kernel
149s
max time network
152s
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 08:22

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General

Target

c95a5553b1a709f22bba8f3f68e6c4c0eef94f99fcf143faebfb68ead35a0f1a.exe
Size

640KB
MD5

0914224943c0087d896a2876e94b3e00
SHA1

573868ff775ff39ff79890046182780d019a48f0
SHA256

c95a5553b1a709f22bba8f3f68e6c4c0eef94f99fcf143faebfb68ead35a0f1a
SHA512

921e8b46afa64aa5fe07ec47125ec273ef7722c1ecf796593e0c6cbb527690ebab86eb5849d6a86a4f5a010faa01166c4e8a248805c75d6d22a633f9909e8f9a
SSDEEP

12288:pMroy90uz5t7W35T0tDyS1uuYB0fJr2NcoP4G8g4PGUijAXhp4ey:1y5XKR0xySJbxxox8gZdEx1y

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
behavioral16/memory/1720-14-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral16/memory/1720-15-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral16/memory/1720-18-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral16/memory/1720-16-0x0000000000400000-0x0000000000433000-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
behavioral16/files/0x000700000002341e-20.dat	family_redline
behavioral16/memory/1632-22-0x00000000007E0000-0x000000000081E000-memory.dmp	family_redline

Executes dropped EXE 3 IoCs

pid	Process
776	xD6jR1ic.exe
3200	1nd48qY3.exe
1632	2bZ911RA.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\\\""	c95a5553b1a709f22bba8f3f68e6c4c0eef94f99fcf143faebfb68ead35a0f1a.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\\\""	xD6jR1ic.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3200 set thread context of 1720	3200	1nd48qY3.exe	86

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1388	3200	WerFault.exe	85
1268	1720	WerFault.exe	86

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1028 wrote to memory of 776	1028	c95a5553b1a709f22bba8f3f68e6c4c0eef94f99fcf143faebfb68ead35a0f1a.exe	84
PID 1028 wrote to memory of 776	1028	c95a5553b1a709f22bba8f3f68e6c4c0eef94f99fcf143faebfb68ead35a0f1a.exe	84
PID 1028 wrote to memory of 776	1028	c95a5553b1a709f22bba8f3f68e6c4c0eef94f99fcf143faebfb68ead35a0f1a.exe	84
PID 776 wrote to memory of 3200	776	xD6jR1ic.exe	85
PID 776 wrote to memory of 3200	776	xD6jR1ic.exe	85
PID 776 wrote to memory of 3200	776	xD6jR1ic.exe	85
PID 3200 wrote to memory of 1720	3200	1nd48qY3.exe	86
PID 3200 wrote to memory of 1720	3200	1nd48qY3.exe	86
PID 3200 wrote to memory of 1720	3200	1nd48qY3.exe	86
PID 3200 wrote to memory of 1720	3200	1nd48qY3.exe	86
PID 3200 wrote to memory of 1720	3200	1nd48qY3.exe	86
PID 3200 wrote to memory of 1720	3200	1nd48qY3.exe	86
PID 3200 wrote to memory of 1720	3200	1nd48qY3.exe	86
PID 3200 wrote to memory of 1720	3200	1nd48qY3.exe	86
PID 3200 wrote to memory of 1720	3200	1nd48qY3.exe	86
PID 3200 wrote to memory of 1720	3200	1nd48qY3.exe	86
PID 776 wrote to memory of 1632	776	xD6jR1ic.exe	93
PID 776 wrote to memory of 1632	776	xD6jR1ic.exe	93
PID 776 wrote to memory of 1632	776	xD6jR1ic.exe	93

C:\Users\Admin\AppData\Local\Temp\c95a5553b1a709f22bba8f3f68e6c4c0eef94f99fcf143faebfb68ead35a0f1a.exe
"C:\Users\Admin\AppData\Local\Temp\c95a5553b1a709f22bba8f3f68e6c4c0eef94f99fcf143faebfb68ead35a0f1a.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1028
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\xD6jR1ic.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\xD6jR1ic.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:776
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1nd48qY3.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1nd48qY3.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:3200
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:1720
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1720 -s 540
        5⤵
        Program crash
        
        PID:1268
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3200 -s 600
      4⤵
      Program crash
      PID:1388
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2bZ911RA.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2bZ911RA.exe
    3⤵
    - Executes dropped EXE
    PID:1632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3200 -ip 3200
1⤵
PID:3740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1720 -ip 1720
1⤵
PID:1344

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\xD6jR1ic.exe

Filesize
444KB

MD5
e3db7fd4d794951a329eea4121f63d6f

SHA1
9e1515d34b94d945b9882722f0ac666d22749e3f

SHA256
1cccca47a3022f3b233e9e1fb3122f73a400ef2938e6e2cf06b47a57c1500ba9

SHA512
ceb23264d453e4f594d29fd7a97c3b4ccfbb50be11f8828ad1df629a8909c6d94e4b4e49c224427f593330209d04d9999fa546e0dd7473796b8cf052fbd61eaa

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1nd48qY3.exe

Filesize
422KB

MD5
0280ebe4f42da1d8476c98e3bb79795a

SHA1
2a86fde390205c7ea6c0a515e639a6423d929b9f

SHA256
e7e11bc18307b19f8ad86ae301759b08bd9886683c24af76e3ba993feea1792f

SHA512
27fcff90c7c16554ab2b453ae4c73204b6ac716ddb8065d5004a49b8a57fd3096efef9f2190b69bdc92c7bd4efed88e785dc5ca605f693bd527c7f60573cabb0

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2bZ911RA.exe

Filesize
222KB

MD5
88c896180c339f8112c76aaf7aa111bf

SHA1
5c9750f9b3f05694a872d0a6a08fd2d17442ae24

SHA256
bf2f15445e8d4d0fd4900cf4164618f7c6e3d26a4c4257568c0da1d4124b5124

SHA512
553c452f018340eedc30ec1cfb681d06154b3592e04102dee9ecb9c42e2bef55120f3405d5f55200e528def26e08920ca347db7ead5c8824552ec448a340393e

Download Submit
memory/1632-27-0x0000000007A70000-0x0000000007B7A000-memory.dmp

Filesize
1.0MB

Download
memory/1632-22-0x00000000007E0000-0x000000000081E000-memory.dmp

Filesize
248KB

Download
memory/1632-23-0x0000000007BE0000-0x0000000008184000-memory.dmp

Filesize
5.6MB

Download
memory/1632-24-0x00000000076D0000-0x0000000007762000-memory.dmp

Filesize
584KB

Download
memory/1632-25-0x0000000004C50000-0x0000000004C5A000-memory.dmp

Filesize
40KB

Download
memory/1632-26-0x00000000087B0000-0x0000000008DC8000-memory.dmp

Filesize
6.1MB

Download
memory/1632-28-0x00000000078C0000-0x00000000078D2000-memory.dmp

Filesize
72KB

Download
memory/1632-29-0x0000000007930000-0x000000000796C000-memory.dmp

Filesize
240KB

Download
memory/1632-30-0x0000000007970000-0x00000000079BC000-memory.dmp

Filesize
304KB

Download
memory/1720-18-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1720-16-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1720-15-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1720-14-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads