mystic | 75edb521bbb0ae12b7c2c52fa6e3ed769f4e764e26b92ef2dc4d7cb78ed92fd9

Analysis

max time kernel
135s
max time network
106s
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 18:30

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General

Target

c5e42a3a502b792f98bf1c2a5548dcfe3d99699a1ebd3b1dbbc5eebb02e0e13e.exe
Size

749KB
MD5

a488dc8386a267e2acce14f3d1555b2b
SHA1

c430f860139a9789dce9e649372373c5404f384f
SHA256

c5e42a3a502b792f98bf1c2a5548dcfe3d99699a1ebd3b1dbbc5eebb02e0e13e
SHA512

b8f58f66d108d2891a070bf3fb2062f260626fb38f65cd9cc729c176e3e2e0b39eef01567bf5f8ab1066b26d7ddcb11a080cfc35222e9a8f97a1fca62bcb35be
SSDEEP

12288:yMrCy90ULBNqxe1t61hnIXvVoEpvX3KNzpdty6t0b1f3OAm/NyvLdOkaAl2TH:AyZOY1t6PnO5p/a7jJM1+1/NyT8kqH

Score

10^/10

mystic smokeloader backdoor persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 1 IoCs

resource	yara_rule
behavioral17/files/0x00070000000234ab-25.dat	mystic_family

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

.NET Reactor proctector 2 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

resource	yara_rule
behavioral17/memory/3904-15-0x00000000021B0000-0x00000000021D0000-memory.dmp	net_reactor
behavioral17/memory/3904-18-0x0000000002440000-0x000000000245E000-memory.dmp	net_reactor

Executes dropped EXE 4 IoCs

pid	Process
4500	nk3Gs03.exe
3904	1ae74NR7.exe
2276	2Hu6027.exe
4760	3Wb30Ka.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\\\""	c5e42a3a502b792f98bf1c2a5548dcfe3d99699a1ebd3b1dbbc5eebb02e0e13e.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\\\""	nk3Gs03.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4760 set thread context of 2748	4760	3Wb30Ka.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 use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3904	1ae74NR7.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1936 wrote to memory of 4500	1936	c5e42a3a502b792f98bf1c2a5548dcfe3d99699a1ebd3b1dbbc5eebb02e0e13e.exe	82
PID 1936 wrote to memory of 4500	1936	c5e42a3a502b792f98bf1c2a5548dcfe3d99699a1ebd3b1dbbc5eebb02e0e13e.exe	82
PID 1936 wrote to memory of 4500	1936	c5e42a3a502b792f98bf1c2a5548dcfe3d99699a1ebd3b1dbbc5eebb02e0e13e.exe	82
PID 4500 wrote to memory of 3904	4500	nk3Gs03.exe	83
PID 4500 wrote to memory of 3904	4500	nk3Gs03.exe	83
PID 4500 wrote to memory of 3904	4500	nk3Gs03.exe	83
PID 4500 wrote to memory of 2276	4500	nk3Gs03.exe	95
PID 4500 wrote to memory of 2276	4500	nk3Gs03.exe	95
PID 4500 wrote to memory of 2276	4500	nk3Gs03.exe	95
PID 1936 wrote to memory of 4760	1936	c5e42a3a502b792f98bf1c2a5548dcfe3d99699a1ebd3b1dbbc5eebb02e0e13e.exe	96
PID 1936 wrote to memory of 4760	1936	c5e42a3a502b792f98bf1c2a5548dcfe3d99699a1ebd3b1dbbc5eebb02e0e13e.exe	96
PID 1936 wrote to memory of 4760	1936	c5e42a3a502b792f98bf1c2a5548dcfe3d99699a1ebd3b1dbbc5eebb02e0e13e.exe	96
PID 4760 wrote to memory of 2748	4760	3Wb30Ka.exe	98
PID 4760 wrote to memory of 2748	4760	3Wb30Ka.exe	98
PID 4760 wrote to memory of 2748	4760	3Wb30Ka.exe	98
PID 4760 wrote to memory of 2748	4760	3Wb30Ka.exe	98
PID 4760 wrote to memory of 2748	4760	3Wb30Ka.exe	98
PID 4760 wrote to memory of 2748	4760	3Wb30Ka.exe	98

C:\Users\Admin\AppData\Local\Temp\c5e42a3a502b792f98bf1c2a5548dcfe3d99699a1ebd3b1dbbc5eebb02e0e13e.exe
"C:\Users\Admin\AppData\Local\Temp\c5e42a3a502b792f98bf1c2a5548dcfe3d99699a1ebd3b1dbbc5eebb02e0e13e.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nk3Gs03.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nk3Gs03.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:4500
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1ae74NR7.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1ae74NR7.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:3904
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Hu6027.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Hu6027.exe
    3⤵
    - Executes dropped EXE
    PID:2276
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3Wb30Ka.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3Wb30Ka.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4760
- - 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:2748

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

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\3Wb30Ka.exe

Filesize
973KB

MD5
5dc4be46727c1853e63ebdd240ec9bd9

SHA1
6265b41bbecbb96cf666d2b4cbd6f209f44d7a2d

SHA256
1df63e2de3adac7ff425c75b3f649078fd7a8e0008e5063bd290adb1cdba2446

SHA512
59828cba7af9fb26c6717eb3e655eec07f732ec92d3ec0cce7ed2df1acf6095dec2d97cdbbd3591ed96c08cb2adcff12c31534a93b48757ff8976c0a4233062b

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nk3Gs03.exe

Filesize
364KB

MD5
4b8a14d31e5650b660a83a8f6a1513fe

SHA1
7ad410958dcac6b8a057bf72bf3b4b57bd712a5a

SHA256
979affe7d58425f6e1ccef7dd74524dab735710df7d0584ff23205d83fa25fc4

SHA512
d57441ee3e220e9776d6e4f5d22d63711bba0a5e2270daa33b13a6670dbed0ae740e5405ef095da11668e3d948087c920a05696c0a2f8d5325eb77a44d553a96

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1ae74NR7.exe

Filesize
188KB

MD5
425e2a994509280a8c1e2812dfaad929

SHA1
4d5eff2fb3835b761e2516a873b537cbaacea1fe

SHA256
6f40f29ad16466785dfbe836dd375400949ff894e8aa03e2805ab1c1ac2d6f5a

SHA512
080a41e7926122e14b38901f2e1eb8100a08c5068a9a74099f060c5e601f056a66e607b4e006820276834bb01d913a3894de98e6d9ba62ce843df14058483aa0

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Hu6027.exe

Filesize
186KB

MD5
3a24a41f3044d90555f6cdea0f2533f8

SHA1
25a1913e9e41dd13039d023a5f63a050256c72ca

SHA256
5e900b7d563b6dc3f5c5db7386ae7ea83ec512b1a72a1cac6d16d17110a90253

SHA512
8d12aca702a3f81329fe0dad30b28269fd9933b5493e8d978080fbee9b66a1727b76b6230d910a9cda1ca68141b55ef7b63fd3f7de077eb453da7d8b44f5b837

Download Submit
memory/2748-30-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3904-18-0x0000000002440000-0x000000000245E000-memory.dmp

Filesize
120KB

Download
memory/3904-17-0x0000000004BA0000-0x0000000005144000-memory.dmp

Filesize
5.6MB

Download
memory/3904-19-0x0000000004AB0000-0x0000000004B42000-memory.dmp

Filesize
584KB

Download
memory/3904-20-0x0000000074890000-0x0000000075040000-memory.dmp

Filesize
7.7MB

Download
memory/3904-21-0x0000000074890000-0x0000000075040000-memory.dmp

Filesize
7.7MB

Download
memory/3904-23-0x0000000074890000-0x0000000075040000-memory.dmp

Filesize
7.7MB

Download
memory/3904-16-0x0000000074890000-0x0000000075040000-memory.dmp

Filesize
7.7MB

Download
memory/3904-15-0x00000000021B0000-0x00000000021D0000-memory.dmp

Filesize
128KB

Download
memory/3904-14-0x000000007489E000-0x000000007489F000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads