mystic | 3bad5318d1eadf9f6d544fc5ed49c1e737fb2db130f60b70bab6f26392c87c30

Analysis

max time kernel
148s
max time network
151s
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 10:50

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General

Target

88b74d8884f09632e668bea54668a44beb33e28e6d34636e7b8888fffc0f0f16.exe
Size

646KB
MD5

0298257cd8a0b8b794370bac343a2112
SHA1

ef4bdd3a890c35d404fb860b0d303239ea4bba09
SHA256

88b74d8884f09632e668bea54668a44beb33e28e6d34636e7b8888fffc0f0f16
SHA512

0e045ee6a7e7d290b8221efe28bc9f434f92c9864ac5b0d8409e3e0e9a9ff702daaab9dfce9032eafabb680aa76a7ffe684f5bb93612c71f8ad1ec006d4b0afd
SSDEEP

12288:1Mrfy90I6MtVRZJn8mMJqSxdWmWdrBPqsJGm/qBIH7/rwIg3pEvUnF:eyRpZh8xhWdrtXkfeTL2pEqF

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
behavioral12/memory/3780-14-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral12/memory/3780-15-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral12/memory/3780-18-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral12/memory/3780-16-0x0000000000400000-0x0000000000433000-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
behavioral12/files/0x00070000000234a8-20.dat	family_redline
behavioral12/memory/4708-22-0x0000000000740000-0x000000000077E000-memory.dmp	family_redline

Executes dropped EXE 3 IoCs

pid	Process
3216	mp9Xq8rT.exe
1636	1wv16gF7.exe
4708	2ez052Se.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_cleanup1 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP001.TMP\\\""	mp9Xq8rT.exe
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\\\""	88b74d8884f09632e668bea54668a44beb33e28e6d34636e7b8888fffc0f0f16.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1636 set thread context of 3780	1636	1wv16gF7.exe	86

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1268	3780	WerFault.exe	86
5020	1636	WerFault.exe	84

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 940 wrote to memory of 3216	940	88b74d8884f09632e668bea54668a44beb33e28e6d34636e7b8888fffc0f0f16.exe	83
PID 940 wrote to memory of 3216	940	88b74d8884f09632e668bea54668a44beb33e28e6d34636e7b8888fffc0f0f16.exe	83
PID 940 wrote to memory of 3216	940	88b74d8884f09632e668bea54668a44beb33e28e6d34636e7b8888fffc0f0f16.exe	83
PID 3216 wrote to memory of 1636	3216	mp9Xq8rT.exe	84
PID 3216 wrote to memory of 1636	3216	mp9Xq8rT.exe	84
PID 3216 wrote to memory of 1636	3216	mp9Xq8rT.exe	84
PID 1636 wrote to memory of 3780	1636	1wv16gF7.exe	86
PID 1636 wrote to memory of 3780	1636	1wv16gF7.exe	86
PID 1636 wrote to memory of 3780	1636	1wv16gF7.exe	86
PID 1636 wrote to memory of 3780	1636	1wv16gF7.exe	86
PID 1636 wrote to memory of 3780	1636	1wv16gF7.exe	86
PID 1636 wrote to memory of 3780	1636	1wv16gF7.exe	86
PID 1636 wrote to memory of 3780	1636	1wv16gF7.exe	86
PID 1636 wrote to memory of 3780	1636	1wv16gF7.exe	86
PID 1636 wrote to memory of 3780	1636	1wv16gF7.exe	86
PID 1636 wrote to memory of 3780	1636	1wv16gF7.exe	86
PID 3216 wrote to memory of 4708	3216	mp9Xq8rT.exe	93
PID 3216 wrote to memory of 4708	3216	mp9Xq8rT.exe	93
PID 3216 wrote to memory of 4708	3216	mp9Xq8rT.exe	93

C:\Users\Admin\AppData\Local\Temp\88b74d8884f09632e668bea54668a44beb33e28e6d34636e7b8888fffc0f0f16.exe
"C:\Users\Admin\AppData\Local\Temp\88b74d8884f09632e668bea54668a44beb33e28e6d34636e7b8888fffc0f0f16.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:940
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\mp9Xq8rT.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\mp9Xq8rT.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:3216
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1wv16gF7.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1wv16gF7.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1636
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:3780
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3780 -s 540
        5⤵
        Program crash
        
        PID:1268
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1636 -s 580
      4⤵
      Program crash
      PID:5020
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2ez052Se.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2ez052Se.exe
    3⤵
    - Executes dropped EXE
    PID:4708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3780 -ip 3780
1⤵
PID:2804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1636 -ip 1636
1⤵
PID:4756

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\mp9Xq8rT.exe

Filesize
450KB

MD5
173dc3cff75ec08feb0478687311af2d

SHA1
eeb609796fd446db75aaea88ac3971e2c2f8b67f

SHA256
c9abb67366056771c92084c40968cc05221a236f2102b82b2350895dea38b4c8

SHA512
4fd6f6a46563478222cc9c1806962d5b6eb09e3717c41b299495880aaa3c02c72bb7a3a12230ad60daa3d5840451398e7ac99c59a990d2f67efb8b43271c7ea5

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1wv16gF7.exe

Filesize
447KB

MD5
1e98b2aab70cf73329270535ca121019

SHA1
62ea94364eacec8dc7ab88e2eccd05766eb40736

SHA256
c683d5f65e3e538a15597be57d6cddf313e436c7eaa8be1053f4d5121dd3d8cd

SHA512
685b6a707788462b1b61b754b76af05777892b62d8a7a1cee49148b60f739232483db13d4c1e0c0c50237ab07e47a7276dbb9e0552d06dea9c9960c6e37f400e

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2ez052Se.exe

Filesize
222KB

MD5
8cfa44a7ba3a2727129dece4f58a9c85

SHA1
b2c4e1e620341c355f98797bde0cdd20b84ea08d

SHA256
b8d884a320428ea03562aac10629eef5ee9839089a58130f21ac29f131dca4d9

SHA512
741322c4ecc2be64a167b74bdd59ebcb7500d5d145c6271b3cd4df49d23d124b6c93479e1157b4a6b28457437d64cff461c4c6d8d92cfdf892722118984ad1ea

Download Submit
memory/3780-14-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/3780-15-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/3780-18-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/3780-16-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4708-23-0x0000000007AC0000-0x0000000008064000-memory.dmp

Filesize
5.6MB

Download
memory/4708-22-0x0000000000740000-0x000000000077E000-memory.dmp

Filesize
248KB

Download
memory/4708-24-0x0000000007600000-0x0000000007692000-memory.dmp

Filesize
584KB

Download
memory/4708-25-0x0000000004BE0000-0x0000000004BEA000-memory.dmp

Filesize
40KB

Download
memory/4708-26-0x0000000008690000-0x0000000008CA8000-memory.dmp

Filesize
6.1MB

Download
memory/4708-27-0x0000000007950000-0x0000000007A5A000-memory.dmp

Filesize
1.0MB

Download
memory/4708-28-0x0000000007840000-0x0000000007852000-memory.dmp

Filesize
72KB

Download
memory/4708-29-0x00000000078A0000-0x00000000078DC000-memory.dmp

Filesize
240KB

Download
memory/4708-30-0x00000000078E0000-0x000000000792C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads