mystic | 1374c21f40fdab5a9e72b4768caf0134d81cf36e0448889013d6005f76280759

Analysis

max time kernel
150s
max time network
131s
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 10:42

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General

Target

088a62b3ab8a6cb9e8c78e220d8aec5b8ed463d91a3309299e17a2e90af11aea.exe
Size

721KB
MD5

1682ace070b7498115d27c779d4d41e5
SHA1

1a2c3384b780cda0688ff7ffc4a53d3de35fde12
SHA256

088a62b3ab8a6cb9e8c78e220d8aec5b8ed463d91a3309299e17a2e90af11aea
SHA512

0d593cd2dbe498fc270273c8f78f9b9f8e836245b564454d3cdc45747643a04d06055a7b4cf90d81dc76d5f533c6f2be14f355e9d8a2212b6e6edffb32ad7213
SSDEEP

12288:jMrwy90ZmDRb95JLu/m3kDmURMr20yALGFUM3jeueRDY0mUTR4dptCBXIc6b:ryb5SmUDmU02HAqh6FdqpkBp6b

Score

10^/10

mystic smokeloader backdoor evasion persistence stealer trojan

Malware Config

Extracted

Family

smokeloader

Version

2022

http://77.91.68.29/fks/

rc4.i32

Signatures

Detect Mystic stealer payload 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000023241-17.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
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	1KH89VS5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	1KH89VS5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	1KH89VS5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	1KH89VS5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	1KH89VS5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	1KH89VS5.exe

Mystic
Mystic is an infostealer written in C++.
stealer mystic
SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader

Executes dropped EXE 4 IoCs

pid	Process
4796	HO2QC93.exe
4144	1KH89VS5.exe
4060	2vR1463.exe
3192	3lr04Gg.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\Microsoft\Windows Defender\Features	1KH89VS5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0"	1KH89VS5.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\\\""	088a62b3ab8a6cb9e8c78e220d8aec5b8ed463d91a3309299e17a2e90af11aea.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\\\""	HO2QC93.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3192 set thread context of 408	3192	3lr04Gg.exe	98

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 opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	AppLaunch.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	AppLaunch.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	AppLaunch.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4144	1KH89VS5.exe
4144	1KH89VS5.exe
4144	1KH89VS5.exe
4144	1KH89VS5.exe
408	AppLaunch.exe
408	AppLaunch.exe
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found
3464	Process not Found

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
408	AppLaunch.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3464	Process not Found

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 4796	2280	088a62b3ab8a6cb9e8c78e220d8aec5b8ed463d91a3309299e17a2e90af11aea.exe	88
PID 2280 wrote to memory of 4796	2280	088a62b3ab8a6cb9e8c78e220d8aec5b8ed463d91a3309299e17a2e90af11aea.exe	88
PID 2280 wrote to memory of 4796	2280	088a62b3ab8a6cb9e8c78e220d8aec5b8ed463d91a3309299e17a2e90af11aea.exe	88
PID 4796 wrote to memory of 4144	4796	HO2QC93.exe	89
PID 4796 wrote to memory of 4144	4796	HO2QC93.exe	89
PID 1408 wrote to memory of 5092	1408	cmd.exe	94
PID 1408 wrote to memory of 5092	1408	cmd.exe	94
PID 4796 wrote to memory of 4060	4796	HO2QC93.exe	96
PID 4796 wrote to memory of 4060	4796	HO2QC93.exe	96
PID 4796 wrote to memory of 4060	4796	HO2QC93.exe	96
PID 2280 wrote to memory of 3192	2280	088a62b3ab8a6cb9e8c78e220d8aec5b8ed463d91a3309299e17a2e90af11aea.exe	97
PID 2280 wrote to memory of 3192	2280	088a62b3ab8a6cb9e8c78e220d8aec5b8ed463d91a3309299e17a2e90af11aea.exe	97
PID 2280 wrote to memory of 3192	2280	088a62b3ab8a6cb9e8c78e220d8aec5b8ed463d91a3309299e17a2e90af11aea.exe	97
PID 3192 wrote to memory of 408	3192	3lr04Gg.exe	98
PID 3192 wrote to memory of 408	3192	3lr04Gg.exe	98
PID 3192 wrote to memory of 408	3192	3lr04Gg.exe	98
PID 3192 wrote to memory of 408	3192	3lr04Gg.exe	98
PID 3192 wrote to memory of 408	3192	3lr04Gg.exe	98
PID 3192 wrote to memory of 408	3192	3lr04Gg.exe	98

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\088a62b3ab8a6cb9e8c78e220d8aec5b8ed463d91a3309299e17a2e90af11aea.exe
"C:\Users\Admin\AppData\Local\Temp\088a62b3ab8a6cb9e8c78e220d8aec5b8ed463d91a3309299e17a2e90af11aea.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\HO2QC93.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\HO2QC93.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:4796
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1KH89VS5.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1KH89VS5.exe
    3⤵
    - Modifies Windows Defender Real-time Protection settings
    - Executes dropped EXE
    - Windows security modification
    - Suspicious behavior: EnumeratesProcesses
    PID:4144
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2vR1463.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2vR1463.exe
    3⤵
    - Executes dropped EXE
    PID:4060
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3lr04Gg.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3lr04Gg.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3192
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    - Checks SCSI registry key(s)
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    PID:408

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c regini "C:\Users\Admin\AppData\Roaming\random_1712054535.txt"
1⤵
- Suspicious use of WriteProcessMemory
PID:1408
- C:\Windows\system32\regini.exe
  regini "C:\Users\Admin\AppData\Roaming\random_1712054535.txt"
  2⤵
  PID:5092

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\3lr04Gg.exe

Filesize
916KB

MD5
98eb85a28d4f8993fc0230976fd1f74f

SHA1
e68085e3cd992c682d90816b0f3feb7e3ede1fb7

SHA256
9594dc80097c0512ab77d843d183c652cec90b148effa8f84342748529a1fd5d

SHA512
3a11170e8f78f9b998a50d3caba795a157aea073dac14343bd299a2300b12606dc790ae82dd1fc4c3590be0ec8a447f23b32e1e1b093b4417c2bd8918f0da03c

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\HO2QC93.exe

Filesize
354KB

MD5
ccce94da996f09caf6ca1e0cb455c204

SHA1
f0633a79f8f1b02b046ed8b91a67d75149aa6b01

SHA256
3b6e0ae1bf782ab0c174cff82f3088fd4bf28fe5c273b426d3dce205deac58eb

SHA512
a80870cdfae14a9ebd8cba27dec2bd428fe36696f2404081a84f2f12a15942482b57a3d5e0d5985e368678b745ce1e3a01415f8d97f79ec618c02d34d2fa0db2

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1KH89VS5.exe

Filesize
265KB

MD5
15fe972bcfd9189d826083838645b850

SHA1
d2bf7fee68e358fa71b942b8ae92e483536abf86

SHA256
ec739f26f487bcc65718bb8c28a5e3adf817a18e01952bd888f618a57c1e61d4

SHA512
30f7c8daa78ba9bb32d5dca56440fd9b1d36336f496521920ab41737787c1c8e0bcdd714b72249e0ab52908d7918afcaf9e0b3f5ba2a8a2888e9adb538810cfe

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2vR1463.exe

Filesize
180KB

MD5
53e28e07671d832a65fbfe3aa38b6678

SHA1
6f9ea0ed8109030511c2c09c848f66bd0d16d1e1

SHA256
5c59db3277aefb761d4b814aaf5f5acd1fd1a0ea154dc565c78b082a3df4566e

SHA512
053f8048230583e741c34f6714c9684ed1312c064cd0c81d99f09e20192b7ddecb53c9c55e4aceac774315315be7e13de98f2cea4e5487f2d9e9dfa2ce3979c9

Download Submit
C:\Users\Admin\AppData\Roaming\random_1712054535.txt

Filesize
78B

MD5
2d245696c73134b0a9a2ac296ea7c170

SHA1
f234419d7a09920a46ad291b98d7dca5a11f0da8

SHA256
ed83e1f6850e48029654e9829cbf6e2cdff82f55f61d1449f822e448f75e8930

SHA512
af0b981ef20aa94aff080fbd2030556fe47c4cc563885b162e604f72bc70c4a0eee4ee57ce4ea8964e6363a32ba34f8bee933db30d3d61392c42299621a4fc79

Download Submit
memory/408-22-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/408-23-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/408-25-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3464-24-0x0000000002E70000-0x0000000002E86000-memory.dmp

Filesize
88KB

Download