mystic | c6816ffd82b36cad619d88b55686e1f43dc9c73679dc4bdea2cd3b8779603d05

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
02-04-2024 10:17

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General

Target

cbf2171616a11736845095e1a1e40b71c7a6b51e3c4453da03db769132820714.exe
Size

860KB
MD5

10546d4f84b9966d5f72ed3bdf530c4c
SHA1

f0179725a1691177a47341327ebaa2e0d2864edb
SHA256

cbf2171616a11736845095e1a1e40b71c7a6b51e3c4453da03db769132820714
SHA512

bdc714a77f447a130c10511b4a066b13180fd723c79efc59e4ead98e11b4fec73bf083431d19deec7036c5ee7a460f2e8f29c2651325f334e66e7eb53f130a05
SSDEEP

24576:pyzao0HuuMlmyvo5SO93mlKkgpvkryQwJiQHehoZM:cHuMl503Dkgkyiu

Score

10^/10

mystic redline smokeloader breha backdoor evasion infostealer persistence stealer trojan

Malware Config

Extracted

Family

smokeloader

Version

2022

http://77.91.68.29/fks/

rc4.i32

Extracted

Family

redline

Botnet

breha

77.91.124.55:19071

Signatures

Detect Mystic stealer payload 1 IoCs

resource	yara_rule
behavioral1/files/0x000700000002321b-41.dat	mystic_family

Modifies Windows Defender Real-time Protection settings 3 TTPs 6 IoCs

evasion trojan

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	1GK86gA3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	1GK86gA3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	1GK86gA3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	1GK86gA3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	1GK86gA3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	1GK86gA3.exe

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
behavioral1/files/0x0007000000023214-51.dat	family_redline
behavioral1/memory/3648-53-0x0000000000100000-0x000000000013E000-memory.dmp	family_redline

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader

Executes dropped EXE 8 IoCs

pid	Process
3716	Fu7FA98.exe
4540	wm8Uu21.exe
2996	Yl3FA41.exe
2584	ug2Bz93.exe
4276	1GK86gA3.exe
1084	2SA8995.exe
4092	3xy63bs.exe
3648	4Ae589gL.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	1GK86gA3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	1GK86gA3.exe

Adds Run key to start application 2 TTPs 5 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\\\""	cbf2171616a11736845095e1a1e40b71c7a6b51e3c4453da03db769132820714.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\\\""	Fu7FA98.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup2 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP002.TMP\\\""	wm8Uu21.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup3 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP003.TMP\\\""	Yl3FA41.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup4 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP004.TMP\\\""	ug2Bz93.exe

Launches sc.exe 1 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2684	sc.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3xy63bs.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3xy63bs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3xy63bs.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4276	1GK86gA3.exe
4276	1GK86gA3.exe
4092	3xy63bs.exe
4092	3xy63bs.exe
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found
3496	Process not Found

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4092	3xy63bs.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4276	1GK86gA3.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3496	Process not Found

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3176 wrote to memory of 3716	3176	cbf2171616a11736845095e1a1e40b71c7a6b51e3c4453da03db769132820714.exe	85
PID 3176 wrote to memory of 3716	3176	cbf2171616a11736845095e1a1e40b71c7a6b51e3c4453da03db769132820714.exe	85
PID 3176 wrote to memory of 3716	3176	cbf2171616a11736845095e1a1e40b71c7a6b51e3c4453da03db769132820714.exe	85
PID 3716 wrote to memory of 4540	3716	Fu7FA98.exe	86
PID 3716 wrote to memory of 4540	3716	Fu7FA98.exe	86
PID 3716 wrote to memory of 4540	3716	Fu7FA98.exe	86
PID 4540 wrote to memory of 2996	4540	wm8Uu21.exe	87
PID 4540 wrote to memory of 2996	4540	wm8Uu21.exe	87
PID 4540 wrote to memory of 2996	4540	wm8Uu21.exe	87
PID 2996 wrote to memory of 2584	2996	Yl3FA41.exe	89
PID 2996 wrote to memory of 2584	2996	Yl3FA41.exe	89
PID 2996 wrote to memory of 2584	2996	Yl3FA41.exe	89
PID 2584 wrote to memory of 4276	2584	ug2Bz93.exe	90
PID 2584 wrote to memory of 4276	2584	ug2Bz93.exe	90
PID 2584 wrote to memory of 4276	2584	ug2Bz93.exe	90
PID 2584 wrote to memory of 1084	2584	ug2Bz93.exe	98
PID 2584 wrote to memory of 1084	2584	ug2Bz93.exe	98
PID 2584 wrote to memory of 1084	2584	ug2Bz93.exe	98
PID 2996 wrote to memory of 4092	2996	Yl3FA41.exe	99
PID 2996 wrote to memory of 4092	2996	Yl3FA41.exe	99
PID 2996 wrote to memory of 4092	2996	Yl3FA41.exe	99
PID 4540 wrote to memory of 3648	4540	wm8Uu21.exe	100
PID 4540 wrote to memory of 3648	4540	wm8Uu21.exe	100
PID 4540 wrote to memory of 3648	4540	wm8Uu21.exe	100

C:\Users\Admin\AppData\Local\Temp\cbf2171616a11736845095e1a1e40b71c7a6b51e3c4453da03db769132820714.exe
"C:\Users\Admin\AppData\Local\Temp\cbf2171616a11736845095e1a1e40b71c7a6b51e3c4453da03db769132820714.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3176
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Fu7FA98.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Fu7FA98.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:3716
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\wm8Uu21.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\wm8Uu21.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of WriteProcessMemory
    PID:4540
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\Yl3FA41.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\Yl3FA41.exe
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Suspicious use of WriteProcessMemory
      PID:2996
    - - C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\ug2Bz93.exe
        
        C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\ug2Bz93.exe
        5⤵
        Executes dropped EXE
        Adds Run key to start application
        Suspicious use of WriteProcessMemory
        
        PID:2584
      - C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\1GK86gA3.exe
        
        C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\1GK86gA3.exe
        6⤵
        Modifies Windows Defender Real-time Protection settings
        Executes dropped EXE
        Windows security modification
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:4276
      - C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\2SA8995.exe
        
        C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\2SA8995.exe
        6⤵
        Executes dropped EXE
        
        PID:1084
    - - C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\3xy63bs.exe
        
        C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\3xy63bs.exe
        5⤵
        Executes dropped EXE
        Checks SCSI registry key(s)
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        
        PID:4092
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\4Ae589gL.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\4Ae589gL.exe
      4⤵
      Executes dropped EXE
      PID:3648

C:\Windows\system32\sc.exe
C:\Windows\system32\sc.exe start wuauserv
1⤵
- Launches sc.exe
PID:2684

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Fu7FA98.exe

Filesize
722KB

MD5
389aa6a4960b6de773a0f491b14329b3

SHA1
ef4cbb9d574d6475d1bac511fcd103bf68f4707f

SHA256
d0c7b1ffa44a3d35577285c697a226cc905426c10d5e35031b3f60e101a92473

SHA512
03f72727719e74c09b49cb9df7b8e40ec463e2fb5a102041f863eb8aef8c726335a17a273c228f3adbc5293ce267ec77c1aa174b7e3a82dd3e426d24ec0dab5c

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\wm8Uu21.exe

Filesize
545KB

MD5
0e2d0c5ad0cfaf7f1956990498a44f41

SHA1
48d6ef07b7caae17a3a7e02917c439a8355bb7da

SHA256
68e39a0f2038392bdb0296890eb2fd78f43af72b971973e10d6d5adfc120095f

SHA512
d1dfb90431430c92cce106744e5f1e0199ff9c3ba05f6cb776ce40d733c1e6b1d1475d36b7b7ebc9929d32d33f652c7597b07f4213d0f835147f850b7d64d318

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\4Ae589gL.exe

Filesize
221KB

MD5
8905918bd7e4f4aeda3a804d81f9ee40

SHA1
3c488a81539116085a1c22df26085f798f7202c8

SHA256
0978a728ad05915e0be6a7283d30acca18893ef7a4b0939d316de70415e0efde

SHA512
6530c4209651aa34f4c91fe5b737dc933f02a8ea3710a6f3fa0bff3130720740de4bec308b35cb31255cec6c85e585036af849ace6e6268ef1d9f9a761fe6a56

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\Yl3FA41.exe

Filesize
371KB

MD5
c4d9a0c04f74a3a9c679637fc27bf8f1

SHA1
b7c196d2c60d18e3595c67ba560cf5565b200a81

SHA256
25b6ea13a8cd76a2e30144d9bc8b27254413777b2f4d2c32898802a0b71f06d9

SHA512
835d8dc48adb9eb91cda1d737ae599f31b727282eeef0d93b7a2f35a2972588a407c37ba0b3173287f82ddd5ac7f07e0d0cd2aa76246c27c5c2dfc144e362a6b

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\3xy63bs.exe

Filesize
30KB

MD5
35a15fad3767597b01a20d75c3c6889a

SHA1
eef19e2757667578f73c4b5720cf94c2ab6e60c8

SHA256
90ccd84f28e4dd03fb70b8739c4636acbcf8a030404b5a24264afd1acd09ecbc

SHA512
c1ea2659e28130f00869391a33dfdc2a763a710a56de2acaa6c71caa9c1eb5809e7ca1dfa1620ac5c3174052d3e277b832853a137a4663483855295fdab23577

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\ug2Bz93.exe

Filesize
246KB

MD5
4061eb8eeee971de67ce22a2a288873b

SHA1
4209d6c394897c1cfff9505da020bb6a9d81521b

SHA256
b57d8bfdeb36184296fdfc848a3b8fb3de6fc146b28abad342584e4ef00ba3fb

SHA512
a543add378d7e3a34455e9034d027dc93a7c806dace273dafed7f2f0c2e44917acb7200f5bd9e858b6e69595386035bdcaf4eb0e22d967b716a4bbff8d0c45da

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\1GK86gA3.exe

Filesize
11KB

MD5
d2ed05fd71460e6d4c505ce87495b859

SHA1
a970dfe775c4e3f157b5b2e26b1f77da7ae6d884

SHA256
3a119008fd025a394f6fb93a0c941e1dc0fa1f9c7606a674388f21d99dfe116f

SHA512
a15efc7c5ddd82ea612444b5df530d11da43bbaaf7f7ae4801c8063c8cffe4538cd47e27639e380b9d1c7e342575169e06af4b298a8faf635865dc4f9dc11b8e

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\2SA8995.exe

Filesize
180KB

MD5
53e28e07671d832a65fbfe3aa38b6678

SHA1
6f9ea0ed8109030511c2c09c848f66bd0d16d1e1

SHA256
5c59db3277aefb761d4b814aaf5f5acd1fd1a0ea154dc565c78b082a3df4566e

SHA512
053f8048230583e741c34f6714c9684ed1312c064cd0c81d99f09e20192b7ddecb53c9c55e4aceac774315315be7e13de98f2cea4e5487f2d9e9dfa2ce3979c9

Download Submit
memory/3496-46-0x0000000002700000-0x0000000002716000-memory.dmp

Filesize
88KB

Download
memory/3648-62-0x0000000007280000-0x00000000072BC000-memory.dmp

Filesize
240KB

Download
memory/3648-61-0x00000000070F0000-0x0000000007102000-memory.dmp

Filesize
72KB

Download
memory/3648-63-0x0000000007120000-0x000000000716C000-memory.dmp

Filesize
304KB

Download
memory/3648-64-0x0000000074BA0000-0x0000000075350000-memory.dmp

Filesize
7.7MB

Download
memory/3648-65-0x0000000006FA0000-0x0000000006FB0000-memory.dmp

Filesize
64KB

Download
memory/3648-54-0x0000000074BA0000-0x0000000075350000-memory.dmp

Filesize
7.7MB

Download
memory/3648-53-0x0000000000100000-0x000000000013E000-memory.dmp

Filesize
248KB

Download
memory/3648-55-0x0000000007390000-0x0000000007934000-memory.dmp

Filesize
5.6MB

Download
memory/3648-56-0x0000000006E80000-0x0000000006F12000-memory.dmp

Filesize
584KB

Download
memory/3648-57-0x0000000006FA0000-0x0000000006FB0000-memory.dmp

Filesize
64KB

Download
memory/3648-58-0x00000000023D0000-0x00000000023DA000-memory.dmp

Filesize
40KB

Download
memory/3648-59-0x0000000007F60000-0x0000000008578000-memory.dmp

Filesize
6.1MB

Download
memory/3648-60-0x0000000007940000-0x0000000007A4A000-memory.dmp

Filesize
1.0MB

Download
memory/4092-47-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4092-45-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4276-38-0x0000000074BA0000-0x0000000075350000-memory.dmp

Filesize
7.7MB

Download
memory/4276-36-0x0000000074BA0000-0x0000000075350000-memory.dmp

Filesize
7.7MB

Download
memory/4276-35-0x0000000000D90000-0x0000000000D9A000-memory.dmp

Filesize
40KB

Download