mystic | c35b2a353f3f737fd5d522bda8150c7fe11a4c4773ad1702d174b480462784c6

Analysis

max time kernel
147s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
23-05-2024 17:26

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General

Target

77f90e33849dda663fd4cda0660a634b060b4175b2e67325c1556e009c739dff.exe
Size

872KB
MD5

b1f947438cac40f6b0065f67923c0bff
SHA1

cde63592778ccb72ff7aa7db2a6e618ae6e13b3e
SHA256

77f90e33849dda663fd4cda0660a634b060b4175b2e67325c1556e009c739dff
SHA512

29da20916d718e65ee1de3051226775e33d55f02a76846dbf90135cabe8392590b2930fe600b6a88c50048f3bbc7582f89c3032728cd4c45e2373861d18018c7
SSDEEP

24576:jyHNtE1bUNkHQwmMWdCeM65DQjXr91quAc:2HLuUNkHQwmKE6r

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
behavioral10/memory/3244-14-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral10/memory/3244-15-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral10/memory/3244-16-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral10/memory/3244-18-0x0000000000400000-0x0000000000433000-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
behavioral10/files/0x0007000000023435-20.dat	family_redline
behavioral10/memory/4916-22-0x0000000000C90000-0x0000000000CCE000-memory.dmp	family_redline

Executes dropped EXE 3 IoCs

pid	Process
1572	iK8ws9LI.exe
2884	1hz03Sj5.exe
4916	2mc488HD.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\\\""	77f90e33849dda663fd4cda0660a634b060b4175b2e67325c1556e009c739dff.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\\\""	iK8ws9LI.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2884 set thread context of 3244	2884	1hz03Sj5.exe	88

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3900	2884	WerFault.exe	84
832	3244	WerFault.exe	88

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1556 wrote to memory of 1572	1556	77f90e33849dda663fd4cda0660a634b060b4175b2e67325c1556e009c739dff.exe	83
PID 1556 wrote to memory of 1572	1556	77f90e33849dda663fd4cda0660a634b060b4175b2e67325c1556e009c739dff.exe	83
PID 1556 wrote to memory of 1572	1556	77f90e33849dda663fd4cda0660a634b060b4175b2e67325c1556e009c739dff.exe	83
PID 1572 wrote to memory of 2884	1572	iK8ws9LI.exe	84
PID 1572 wrote to memory of 2884	1572	iK8ws9LI.exe	84
PID 1572 wrote to memory of 2884	1572	iK8ws9LI.exe	84
PID 2884 wrote to memory of 3528	2884	1hz03Sj5.exe	87
PID 2884 wrote to memory of 3528	2884	1hz03Sj5.exe	87
PID 2884 wrote to memory of 3528	2884	1hz03Sj5.exe	87
PID 2884 wrote to memory of 3244	2884	1hz03Sj5.exe	88
PID 2884 wrote to memory of 3244	2884	1hz03Sj5.exe	88
PID 2884 wrote to memory of 3244	2884	1hz03Sj5.exe	88
PID 2884 wrote to memory of 3244	2884	1hz03Sj5.exe	88
PID 2884 wrote to memory of 3244	2884	1hz03Sj5.exe	88
PID 2884 wrote to memory of 3244	2884	1hz03Sj5.exe	88
PID 2884 wrote to memory of 3244	2884	1hz03Sj5.exe	88
PID 2884 wrote to memory of 3244	2884	1hz03Sj5.exe	88
PID 2884 wrote to memory of 3244	2884	1hz03Sj5.exe	88
PID 2884 wrote to memory of 3244	2884	1hz03Sj5.exe	88
PID 1572 wrote to memory of 4916	1572	iK8ws9LI.exe	96
PID 1572 wrote to memory of 4916	1572	iK8ws9LI.exe	96
PID 1572 wrote to memory of 4916	1572	iK8ws9LI.exe	96

C:\Users\Admin\AppData\Local\Temp\77f90e33849dda663fd4cda0660a634b060b4175b2e67325c1556e009c739dff.exe
"C:\Users\Admin\AppData\Local\Temp\77f90e33849dda663fd4cda0660a634b060b4175b2e67325c1556e009c739dff.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1556
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\iK8ws9LI.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\iK8ws9LI.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:1572
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1hz03Sj5.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1hz03Sj5.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2884
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:3528
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:3244
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3244 -s 540
        5⤵
        Program crash
        
        PID:832
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2884 -s 616
      4⤵
      Program crash
      PID:3900
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2mc488HD.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2mc488HD.exe
    3⤵
    - Executes dropped EXE
    PID:4916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3244 -ip 3244
1⤵
PID:4248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 2884 -ip 2884
1⤵
PID:1392

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\iK8ws9LI.exe

Filesize
676KB

MD5
6ea43c8e5b1d3b17b6d2d71d0bd0cdec

SHA1
5a6f7a99bc6a9840aa31451dafcd144ec3cc489d

SHA256
33598ea86e5fb6e4703678ac412886ef6b59161a6c845c900d25dda182afa112

SHA512
db8a7808792a78cb89a0b6242716716c41b2308689044217a61566d60c3dd46321084fd6bb0de4e6b18b407dfefb4fa9f4bf0579b8b8ce7447998a43b851c21e

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1hz03Sj5.exe

Filesize
1.8MB

MD5
dc1c6fa652a52fb006b7a929d2249b93

SHA1
455db2bc6d939bc5eb5879eab0730f442c870fc6

SHA256
78a1d500a9fd4aac344c93564216a43d1c98220c5762792c0d82600c55ef9759

SHA512
27cd8db2ecd6262b0d850cef2ea37c9feb283db13390f6b6ff1dd2de113110acfa0896b088989d38839e0bc399cf44bd349aa6cd8905c74c91c5e27e8d4813b3

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2mc488HD.exe

Filesize
221KB

MD5
db7203a9375c2b8b5cab4c6c4d6fefda

SHA1
7871e092ca9cbea13519947eaee8a09b79be158b

SHA256
a425c03504e12badf047ca49990bb8f1b025ee56a2ebdd4a2fbdbe93c979f5b2

SHA512
06c448b381360e5809d9f42c615d98880f77b0457d08f038a3b12ad84a335133826c3a4bc2993fcc4088a224fed9c3a0f1482790e814611d0277259eb8d9fb50

Download Submit
memory/3244-14-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/3244-15-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/3244-16-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/3244-18-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4916-23-0x0000000007F90000-0x0000000008534000-memory.dmp

Filesize
5.6MB

Download
memory/4916-22-0x0000000000C90000-0x0000000000CCE000-memory.dmp

Filesize
248KB

Download
memory/4916-24-0x0000000007A80000-0x0000000007B12000-memory.dmp

Filesize
584KB

Download
memory/4916-25-0x0000000002FB0000-0x0000000002FBA000-memory.dmp

Filesize
40KB

Download
memory/4916-26-0x0000000008B60000-0x0000000009178000-memory.dmp

Filesize
6.1MB

Download
memory/4916-27-0x0000000008540000-0x000000000864A000-memory.dmp

Filesize
1.0MB

Download
memory/4916-28-0x0000000007C30000-0x0000000007C42000-memory.dmp

Filesize
72KB

Download
memory/4916-29-0x0000000007C90000-0x0000000007CCC000-memory.dmp

Filesize
240KB

Download
memory/4916-30-0x0000000007D00000-0x0000000007D4C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads