mystic | e19e97a334ecb39058fd976080222a46cc2159e34c85df371a9eaf0088ee80eb

Analysis

max time kernel
148s
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
23-05-2024 10:44

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General

Target

f5659ff4e2e2c4f553f6a9f59f406907a29545e4ca9d61810be718d9619a8dff.exe
Size

409KB
MD5

528c55db5f8cbf3442a3729e685d9f0d
SHA1

ba7ed8fcf8e39667743f812d9c5fa1d82d025f26
SHA256

f5659ff4e2e2c4f553f6a9f59f406907a29545e4ca9d61810be718d9619a8dff
SHA512

12c8b016e7b6ca2d357d2fc770ea72fdb195dce19357ec9acdc44fcfd5cd808474a88eef2c7ef39c93a468ddbddf371993d02c43175ea4546086ca4863751221
SSDEEP

6144:Kry+bnr+Vp0yN90QEXnD5+uPpwDYJAQEf2vFn8wRVVl/DFLblDH/:9Mrhy90j+Mof2J8wP3FVDf

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

resource	yara_rule
behavioral27/memory/3520-7-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral27/memory/3520-10-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral27/memory/3520-8-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral27/memory/3520-11-0x0000000000400000-0x0000000000432000-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

resource	yara_rule
behavioral27/files/0x0007000000023483-13.dat	family_redline
behavioral27/memory/2920-16-0x0000000000D60000-0x0000000000D9E000-memory.dmp	family_redline

Executes dropped EXE 2 IoCs

pid	Process
3956	1lC31zb8.exe
2920	2YI909rR.exe

Adds Run key to start application 2 TTPs 1 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\\\""	f5659ff4e2e2c4f553f6a9f59f406907a29545e4ca9d61810be718d9619a8dff.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3956 set thread context of 3520	3956	1lC31zb8.exe	84

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4676	3520	WerFault.exe	84

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4208 wrote to memory of 3956	4208	f5659ff4e2e2c4f553f6a9f59f406907a29545e4ca9d61810be718d9619a8dff.exe	83
PID 4208 wrote to memory of 3956	4208	f5659ff4e2e2c4f553f6a9f59f406907a29545e4ca9d61810be718d9619a8dff.exe	83
PID 4208 wrote to memory of 3956	4208	f5659ff4e2e2c4f553f6a9f59f406907a29545e4ca9d61810be718d9619a8dff.exe	83
PID 3956 wrote to memory of 3520	3956	1lC31zb8.exe	84
PID 3956 wrote to memory of 3520	3956	1lC31zb8.exe	84
PID 3956 wrote to memory of 3520	3956	1lC31zb8.exe	84
PID 3956 wrote to memory of 3520	3956	1lC31zb8.exe	84
PID 3956 wrote to memory of 3520	3956	1lC31zb8.exe	84
PID 3956 wrote to memory of 3520	3956	1lC31zb8.exe	84
PID 3956 wrote to memory of 3520	3956	1lC31zb8.exe	84
PID 3956 wrote to memory of 3520	3956	1lC31zb8.exe	84
PID 3956 wrote to memory of 3520	3956	1lC31zb8.exe	84
PID 3956 wrote to memory of 3520	3956	1lC31zb8.exe	84
PID 4208 wrote to memory of 2920	4208	f5659ff4e2e2c4f553f6a9f59f406907a29545e4ca9d61810be718d9619a8dff.exe	86
PID 4208 wrote to memory of 2920	4208	f5659ff4e2e2c4f553f6a9f59f406907a29545e4ca9d61810be718d9619a8dff.exe	86
PID 4208 wrote to memory of 2920	4208	f5659ff4e2e2c4f553f6a9f59f406907a29545e4ca9d61810be718d9619a8dff.exe	86

C:\Users\Admin\AppData\Local\Temp\f5659ff4e2e2c4f553f6a9f59f406907a29545e4ca9d61810be718d9619a8dff.exe
"C:\Users\Admin\AppData\Local\Temp\f5659ff4e2e2c4f553f6a9f59f406907a29545e4ca9d61810be718d9619a8dff.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4208
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1lC31zb8.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1lC31zb8.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3956
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:3520
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3520 -s 540
      4⤵
      Program crash
      PID:4676
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2YI909rR.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2YI909rR.exe
  2⤵
  - Executes dropped EXE
  PID:2920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3520 -ip 3520
1⤵
PID:4108

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\1lC31zb8.exe

Filesize
340KB

MD5
ec3819defcb1def0479459a07cf02070

SHA1
0d46c5bab631e6a66bf617d8f92cfb4fe36ea2ed

SHA256
c91e019691a909fc6499991d551db9fbdbb7880e596a2d078a0b9e1bc6e58092

SHA512
60f4cb6ec74df86d3ffde51e09968297d5a9277f58d4829b53e07e4d49b5500a7a08ba2ef35326388daad158b2608bdd3591ad98e793934a3c8be6a8dea839d3

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2YI909rR.exe

Filesize
222KB

MD5
71bbd8e9a4a2bd30862e98336d976a81

SHA1
eb3e0c9368f8ac4611e6ea409217a5cdb6363bf1

SHA256
1fb936858df4cadd7fba4393ffc5b9e8872eeb8b3dc63139bda3665d0066f040

SHA512
c9c901affe493166c1a1a16409a2e8f09d2f9c649722ad6ad115540fade1b4bcff19286c35cc76a2ca62316d940277939a3e4ec45f0ef43faba5e56cf90b4dd3

Download Submit
memory/2920-21-0x0000000008BB0000-0x00000000091C8000-memory.dmp

Filesize
6.1MB

Download
memory/2920-20-0x00000000741F0000-0x00000000749A0000-memory.dmp

Filesize
7.7MB

Download
memory/2920-27-0x00000000741F0000-0x00000000749A0000-memory.dmp

Filesize
7.7MB

Download
memory/2920-26-0x00000000741FE000-0x00000000741FF000-memory.dmp

Filesize
4KB

Download
memory/2920-15-0x00000000741FE000-0x00000000741FF000-memory.dmp

Filesize
4KB

Download
memory/2920-16-0x0000000000D60000-0x0000000000D9E000-memory.dmp

Filesize
248KB

Download
memory/2920-17-0x0000000007FE0000-0x0000000008584000-memory.dmp

Filesize
5.6MB

Download
memory/2920-18-0x0000000007B20000-0x0000000007BB2000-memory.dmp

Filesize
584KB

Download
memory/2920-19-0x0000000002F90000-0x0000000002F9A000-memory.dmp

Filesize
40KB

Download
memory/2920-25-0x0000000007DB0000-0x0000000007DFC000-memory.dmp

Filesize
304KB

Download
memory/2920-24-0x0000000007D70000-0x0000000007DAC000-memory.dmp

Filesize
240KB

Download
memory/2920-23-0x0000000007C10000-0x0000000007C22000-memory.dmp

Filesize
72KB

Download
memory/2920-22-0x0000000008590000-0x000000000869A000-memory.dmp

Filesize
1.0MB

Download
memory/3520-7-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/3520-8-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/3520-10-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/3520-11-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads