mystic | ddc6b496a8a25762ee7b933f47107c5553187f5846568bf68b67dd8d5f4a7548

Analysis

max time kernel
148s
max time network
153s
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 19:05

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General

Target

0fed7be9f1bc5655b7c37c7839da72b6233320884e7029c3ca465ec9fa0bdc18.exe
Size

627KB
MD5

a023dcdf69a662c78b89ea42e27ddff1
SHA1

c285a8ddd972405bba6a643c45614bb9f6a7a1bb
SHA256

0fed7be9f1bc5655b7c37c7839da72b6233320884e7029c3ca465ec9fa0bdc18
SHA512

02bed9b5c5bdabbb6890d92813c11c0401078a51762733a0ff1652860ce1f04b0df88f1a1873b940133dcdce2ca609897b00b27116b353b8b299daa662b1db9b
SSDEEP

12288:0Mrvy90w5u6t5if8iVo7jP8+ixDdt+PNbzQAyU9rwRxxDb/3brOw5aLc:Dyo6Ti27j0+ix8zQAXRCxb/3brL5l

Score

10^/10

mystic smokeloader backdoor evasion persistence stealer trojan

Malware Config

Extracted

Family

mystic

http://5.42.92.211/

Signatures

Detect Mystic stealer payload 3 IoCs

resource	yara_rule
behavioral2/memory/4584-19-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral2/memory/4584-22-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral2/memory/4584-20-0x0000000000400000-0x0000000000433000-memory.dmp	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\DisableOnAccessProtection = "1"	AppLaunch.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	AppLaunch.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	AppLaunch.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	AppLaunch.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	AppLaunch.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	AppLaunch.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
4088	uw4jo81.exe
912	1yt26wD6.exe
2700	2UU0135.exe
4104	3HJ06gh.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\\\""	0fed7be9f1bc5655b7c37c7839da72b6233320884e7029c3ca465ec9fa0bdc18.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\\\""	uw4jo81.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 912 set thread context of 2088	912	1yt26wD6.exe	85
PID 2700 set thread context of 4584	2700	2UU0135.exe	93
PID 4104 set thread context of 768	4104	3HJ06gh.exe	99

Launches sc.exe 1 IoCs

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

pid	Process
1056	sc.exe

Program crash 3 IoCs

pid	pid_target	Process	procid_target
528	912	WerFault.exe	84
4708	2700	WerFault.exe	91
3228	4104	WerFault.exe	96

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 2 IoCs

pid	Process
2088	AppLaunch.exe
2088	AppLaunch.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2088	AppLaunch.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2896 wrote to memory of 4088	2896	0fed7be9f1bc5655b7c37c7839da72b6233320884e7029c3ca465ec9fa0bdc18.exe	83
PID 2896 wrote to memory of 4088	2896	0fed7be9f1bc5655b7c37c7839da72b6233320884e7029c3ca465ec9fa0bdc18.exe	83
PID 2896 wrote to memory of 4088	2896	0fed7be9f1bc5655b7c37c7839da72b6233320884e7029c3ca465ec9fa0bdc18.exe	83
PID 4088 wrote to memory of 912	4088	uw4jo81.exe	84
PID 4088 wrote to memory of 912	4088	uw4jo81.exe	84
PID 4088 wrote to memory of 912	4088	uw4jo81.exe	84
PID 912 wrote to memory of 2088	912	1yt26wD6.exe	85
PID 912 wrote to memory of 2088	912	1yt26wD6.exe	85
PID 912 wrote to memory of 2088	912	1yt26wD6.exe	85
PID 912 wrote to memory of 2088	912	1yt26wD6.exe	85
PID 912 wrote to memory of 2088	912	1yt26wD6.exe	85
PID 912 wrote to memory of 2088	912	1yt26wD6.exe	85
PID 912 wrote to memory of 2088	912	1yt26wD6.exe	85
PID 912 wrote to memory of 2088	912	1yt26wD6.exe	85
PID 4088 wrote to memory of 2700	4088	uw4jo81.exe	91
PID 4088 wrote to memory of 2700	4088	uw4jo81.exe	91
PID 4088 wrote to memory of 2700	4088	uw4jo81.exe	91
PID 2700 wrote to memory of 4584	2700	2UU0135.exe	93
PID 2700 wrote to memory of 4584	2700	2UU0135.exe	93
PID 2700 wrote to memory of 4584	2700	2UU0135.exe	93
PID 2700 wrote to memory of 4584	2700	2UU0135.exe	93
PID 2700 wrote to memory of 4584	2700	2UU0135.exe	93
PID 2700 wrote to memory of 4584	2700	2UU0135.exe	93
PID 2700 wrote to memory of 4584	2700	2UU0135.exe	93
PID 2700 wrote to memory of 4584	2700	2UU0135.exe	93
PID 2700 wrote to memory of 4584	2700	2UU0135.exe	93
PID 2700 wrote to memory of 4584	2700	2UU0135.exe	93
PID 2896 wrote to memory of 4104	2896	0fed7be9f1bc5655b7c37c7839da72b6233320884e7029c3ca465ec9fa0bdc18.exe	96
PID 2896 wrote to memory of 4104	2896	0fed7be9f1bc5655b7c37c7839da72b6233320884e7029c3ca465ec9fa0bdc18.exe	96
PID 2896 wrote to memory of 4104	2896	0fed7be9f1bc5655b7c37c7839da72b6233320884e7029c3ca465ec9fa0bdc18.exe	96
PID 4104 wrote to memory of 768	4104	3HJ06gh.exe	99
PID 4104 wrote to memory of 768	4104	3HJ06gh.exe	99
PID 4104 wrote to memory of 768	4104	3HJ06gh.exe	99
PID 4104 wrote to memory of 768	4104	3HJ06gh.exe	99
PID 4104 wrote to memory of 768	4104	3HJ06gh.exe	99
PID 4104 wrote to memory of 768	4104	3HJ06gh.exe	99

C:\Users\Admin\AppData\Local\Temp\0fed7be9f1bc5655b7c37c7839da72b6233320884e7029c3ca465ec9fa0bdc18.exe
"C:\Users\Admin\AppData\Local\Temp\0fed7be9f1bc5655b7c37c7839da72b6233320884e7029c3ca465ec9fa0bdc18.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2896
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\uw4jo81.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\uw4jo81.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:4088
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1yt26wD6.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1yt26wD6.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:912
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      Modifies Windows Defender Real-time Protection settings
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2088
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 912 -s 584
      4⤵
      Program crash
      PID:528
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2UU0135.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2UU0135.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2700
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:4584
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2700 -s 564
      4⤵
      Program crash
      PID:4708
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3HJ06gh.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3HJ06gh.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4104
- - 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)
    PID:768
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4104 -s 584
    3⤵
    - Program crash
    PID:3228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 912 -ip 912
1⤵
PID:4520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2700 -ip 2700
1⤵
PID:3216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 4104 -ip 4104
1⤵
PID:3656

C:\Windows\system32\sc.exe
C:\Windows\system32\sc.exe start wuauserv
1⤵
- Launches sc.exe
PID:1056

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\3HJ06gh.exe

Filesize
258KB

MD5
42f7f253e4560c3f34e51224ff2db445

SHA1
9a498ee905e5b19a281996c16156746432e8177b

SHA256
46751ea25f8226cf0b1d6c1d2d8ad7a261cb5fd48719ec669b2acc5a95bd508d

SHA512
464a27fe76ce7aef5af45028020c7d85a60b4fe2ac01df40503a0b267b7ec7cfc23ec237ffbdc18364d68f066473685d522c0026792a7a91030fcb3ad6ced6c9

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\uw4jo81.exe

Filesize
388KB

MD5
bea1f77d6043e836fb62540b338868c1

SHA1
106977b5d3227b55becd83803ba51227dadb46df

SHA256
3715bb832ec20a415c1ceb7b59fcd275de12645a9b7436cdbe56686a0465e45a

SHA512
bb97470a52aec9c3c2486543fb3c73320a94548e305df298ce6b44fbe4dab7fc498a7cb2da953e64d737e7022e3ea553d5c7a64962be338d0c7dc26fbccb62d6

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1yt26wD6.exe

Filesize
232KB

MD5
3ff825411b1fe07e712a5dcae34f80eb

SHA1
e3e4358cabfa74d6e36e26754b01ed78434a6877

SHA256
69bba958a5dcd8650921b25d978c4847819eb83adc143ba2bd396811d7d73739

SHA512
325c098b5a0a0ffee16a6074616126f9f4c7930b74507d38c63a294f659ab26fe1674af85a8ff495bd268aa821cc9d85f80f11ab1e7f828015920220e456ab81

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2UU0135.exe

Filesize
410KB

MD5
8e41a4f4df8c05d127d45ea1dc5a221d

SHA1
65b67a5618a75cb178aba2ce942e235c0c2cfd08

SHA256
e213d0e65d3e73eecd6320248a0f4fad2db57d558639448e95e655c3c6da1d24

SHA512
6d0c2e685b76c6c5c226bbbd8cf331bcdfb7eb3359a7e2ae7bee24482b2c00c3df7f186101dbc022be11d1ada80a84602f218cc61c6442617cdededad1cb1122

Download Submit
memory/768-26-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2088-14-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2088-15-0x000000007406E000-0x000000007406F000-memory.dmp

Filesize
4KB

Download
memory/4584-19-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4584-22-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4584-20-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download