mystic | dcf4e78aa4f4a43375e6c66a708f11e84986bd1f7bacc1564324e028fcba76f4

Analysis

max time kernel
143s
max time network
150s
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 10:56

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General

Target

b5f2197dc65f7c8ffbd0e39caf14248edd08aa46f69db02db370ce1daa32ebdc.exe
Size

761KB
MD5

61065f9fbf46c0861e8c3ecbaa9e81bc
SHA1

739dea869c300661557b9fcd417ca8479d8b2cd3
SHA256

b5f2197dc65f7c8ffbd0e39caf14248edd08aa46f69db02db370ce1daa32ebdc
SHA512

6864f2e7bd6804cc6e81180a21647adad8cd607f4a4c5e1606d061442aab399e232e6318dae9b310a0fb423244ce017db8fe80824845ce9cfc20b61be2fb6408
SSDEEP

12288:8MrBy90jw58pcXVJUADdTtRFm7Eb9Bnsv1I1Xv9dVqtsjzymJft2swEaTE7Tie:dyIw531xtXnBnsvilnrjzftzUE7We

Score

10^/10

mystic redline kukish infostealer persistence stealer

Malware Config

Extracted

Family

mystic

http://5.42.92.211/

Extracted

Family

redline

Botnet

kukish

77.91.124.55:19071

Signatures

Detect Mystic stealer payload 4 IoCs

resource	yara_rule
behavioral15/memory/2772-14-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral15/memory/2772-16-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral15/memory/2772-15-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral15/memory/2772-18-0x0000000000400000-0x0000000000433000-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
behavioral15/files/0x000700000002342b-20.dat	family_redline
behavioral15/memory/2388-22-0x0000000000B20000-0x0000000000B5E000-memory.dmp	family_redline

Executes dropped EXE 3 IoCs

pid	Process
2164	eM7qK9vK.exe
3164	1fz09KZ9.exe
2388	2yX557Yl.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\\\""	b5f2197dc65f7c8ffbd0e39caf14248edd08aa46f69db02db370ce1daa32ebdc.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\\\""	eM7qK9vK.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3164 set thread context of 2772	3164	1fz09KZ9.exe	95

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3892	3164	WerFault.exe	85
4144	2772	WerFault.exe	95

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3260 wrote to memory of 2164	3260	b5f2197dc65f7c8ffbd0e39caf14248edd08aa46f69db02db370ce1daa32ebdc.exe	84
PID 3260 wrote to memory of 2164	3260	b5f2197dc65f7c8ffbd0e39caf14248edd08aa46f69db02db370ce1daa32ebdc.exe	84
PID 3260 wrote to memory of 2164	3260	b5f2197dc65f7c8ffbd0e39caf14248edd08aa46f69db02db370ce1daa32ebdc.exe	84
PID 2164 wrote to memory of 3164	2164	eM7qK9vK.exe	85
PID 2164 wrote to memory of 3164	2164	eM7qK9vK.exe	85
PID 2164 wrote to memory of 3164	2164	eM7qK9vK.exe	85
PID 3164 wrote to memory of 2772	3164	1fz09KZ9.exe	95
PID 3164 wrote to memory of 2772	3164	1fz09KZ9.exe	95
PID 3164 wrote to memory of 2772	3164	1fz09KZ9.exe	95
PID 3164 wrote to memory of 2772	3164	1fz09KZ9.exe	95
PID 3164 wrote to memory of 2772	3164	1fz09KZ9.exe	95
PID 3164 wrote to memory of 2772	3164	1fz09KZ9.exe	95
PID 3164 wrote to memory of 2772	3164	1fz09KZ9.exe	95
PID 3164 wrote to memory of 2772	3164	1fz09KZ9.exe	95
PID 3164 wrote to memory of 2772	3164	1fz09KZ9.exe	95
PID 3164 wrote to memory of 2772	3164	1fz09KZ9.exe	95
PID 2164 wrote to memory of 2388	2164	eM7qK9vK.exe	102
PID 2164 wrote to memory of 2388	2164	eM7qK9vK.exe	102
PID 2164 wrote to memory of 2388	2164	eM7qK9vK.exe	102

C:\Users\Admin\AppData\Local\Temp\b5f2197dc65f7c8ffbd0e39caf14248edd08aa46f69db02db370ce1daa32ebdc.exe
"C:\Users\Admin\AppData\Local\Temp\b5f2197dc65f7c8ffbd0e39caf14248edd08aa46f69db02db370ce1daa32ebdc.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3260
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\eM7qK9vK.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\eM7qK9vK.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2164
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1fz09KZ9.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1fz09KZ9.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:3164
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:2772
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2772 -s 540
        5⤵
        Program crash
        
        PID:4144
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3164 -s 580
      4⤵
      Program crash
      PID:3892
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yX557Yl.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yX557Yl.exe
    3⤵
    - Executes dropped EXE
    PID:2388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2772 -ip 2772
1⤵
PID:1016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 3164 -ip 3164
1⤵
PID:2336

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\eM7qK9vK.exe

Filesize
566KB

MD5
39e11c4e25b69433c7bf77737d9c5cd5

SHA1
f80f61037184f57d59fa86ba3f04a671c7d68926

SHA256
2f090e20e54c823d222ab79c4d518684475ab11c4c50428e24ff1aa4e63379a8

SHA512
362ac82740fc27b068e96c1d64023b4c0e07c5c7a35883dd7de4f2f082336d853b0cd0319c617dfb04296a6f219bfbb9699651e2668a717d06e3b1156db016c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1fz09KZ9.exe

Filesize
1.1MB

MD5
ec059d051e3b438b693da5b96f30d0b9

SHA1
2231ab7f1afa010cf48b0d6ad14ae6f77a380fe9

SHA256
a3a971b8e61a267785b9888aaa8e6156b8ce7274d816d0012ce27556b32a70c0

SHA512
f5acfbc6e16d02677ce8d45bd28c008375063b289632eeeec919425a16a6e343e41da9ee4e9b12cf76a594ced08eef8718d2b72dfedc81040ccb181c05ca43fd

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yX557Yl.exe

Filesize
221KB

MD5
c98986b5ebcf71e9048de5d9a61d2c09

SHA1
b01133e5b11dd39ead9d84a2ddd119650a0283df

SHA256
1e02d7d9634a00294548d14bd6393f669c740c2c73ffbcd02ef462607e8ec820

SHA512
eff4c07a73bec80dea70190a39fc79540862497a043897eae53ff7c437c663cb419724b2f65eb3d0ea195d2809a55f82462ca2ab801338900b2570fdbb424f7a

Download Submit
memory/2388-27-0x0000000007D70000-0x0000000007E7A000-memory.dmp

Filesize
1.0MB

Download
memory/2388-22-0x0000000000B20000-0x0000000000B5E000-memory.dmp

Filesize
248KB

Download
memory/2388-23-0x0000000007EF0000-0x0000000008494000-memory.dmp

Filesize
5.6MB

Download
memory/2388-24-0x00000000079E0000-0x0000000007A72000-memory.dmp

Filesize
584KB

Download
memory/2388-25-0x0000000004F70000-0x0000000004F7A000-memory.dmp

Filesize
40KB

Download
memory/2388-26-0x0000000008AC0000-0x00000000090D8000-memory.dmp

Filesize
6.1MB

Download
memory/2388-28-0x0000000007C10000-0x0000000007C22000-memory.dmp

Filesize
72KB

Download
memory/2388-29-0x0000000007CA0000-0x0000000007CDC000-memory.dmp

Filesize
240KB

Download
memory/2388-30-0x0000000007CE0000-0x0000000007D2C000-memory.dmp

Filesize
304KB

Download
memory/2772-15-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/2772-18-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/2772-16-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/2772-14-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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