mystic | eafc2bfbeaeddb89f86da75f29f14435b745b919f0b99dd1d0d30b9d33efb415

Analysis

max time kernel
135s
max time network
107s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
24-05-2024 07:44

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General

Target

7f2d656f1a4331d02ffea567b5177c3a772a6a6e9c022b13e9042bd0dccbf324.exe
Size

749KB
MD5

33805f2b53d2f319d3b41a7ed74278a1
SHA1

201de42d0319e08a3b40a9489c96a564f4b93a53
SHA256

7f2d656f1a4331d02ffea567b5177c3a772a6a6e9c022b13e9042bd0dccbf324
SHA512

77794e49ec66fc5b92e0ae589cf830fe6c7ac82bf48846985f24ead9cd453f3ca922d770c21d0241b75164ce4a07c98426343efda7a184979eac34070d5b5075
SSDEEP

12288:pMrBy90akPV3+Jj1f+wYXvVoE3JXwU3Ceszc+jy39BKwpVi3WkwPRImpi6pr:Iy3Y+Ft+w+53RUeszfgKuRkA+hO

Score

10^/10

mystic smokeloader backdoor persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 1 IoCs

resource	yara_rule
behavioral11/files/0x000700000002344f-24.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
behavioral11/memory/4332-15-0x00000000022C0000-0x00000000022E0000-memory.dmp	net_reactor
behavioral11/memory/4332-18-0x0000000004950000-0x000000000496E000-memory.dmp	net_reactor

Executes dropped EXE 4 IoCs

pid	Process
1008	wQ9Hq82.exe
4332	1Aa91Rd9.exe
4668	2qS2422.exe
3688	3te55lH.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\\\""	7f2d656f1a4331d02ffea567b5177c3a772a6a6e9c022b13e9042bd0dccbf324.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\\\""	wQ9Hq82.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3688 set thread context of 2372	3688	3te55lH.exe	99

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	4332	1Aa91Rd9.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4288 wrote to memory of 1008	4288	7f2d656f1a4331d02ffea567b5177c3a772a6a6e9c022b13e9042bd0dccbf324.exe	82
PID 4288 wrote to memory of 1008	4288	7f2d656f1a4331d02ffea567b5177c3a772a6a6e9c022b13e9042bd0dccbf324.exe	82
PID 4288 wrote to memory of 1008	4288	7f2d656f1a4331d02ffea567b5177c3a772a6a6e9c022b13e9042bd0dccbf324.exe	82
PID 1008 wrote to memory of 4332	1008	wQ9Hq82.exe	83
PID 1008 wrote to memory of 4332	1008	wQ9Hq82.exe	83
PID 1008 wrote to memory of 4332	1008	wQ9Hq82.exe	83
PID 1008 wrote to memory of 4668	1008	wQ9Hq82.exe	95
PID 1008 wrote to memory of 4668	1008	wQ9Hq82.exe	95
PID 1008 wrote to memory of 4668	1008	wQ9Hq82.exe	95
PID 4288 wrote to memory of 3688	4288	7f2d656f1a4331d02ffea567b5177c3a772a6a6e9c022b13e9042bd0dccbf324.exe	96
PID 4288 wrote to memory of 3688	4288	7f2d656f1a4331d02ffea567b5177c3a772a6a6e9c022b13e9042bd0dccbf324.exe	96
PID 4288 wrote to memory of 3688	4288	7f2d656f1a4331d02ffea567b5177c3a772a6a6e9c022b13e9042bd0dccbf324.exe	96
PID 3688 wrote to memory of 2372	3688	3te55lH.exe	99
PID 3688 wrote to memory of 2372	3688	3te55lH.exe	99
PID 3688 wrote to memory of 2372	3688	3te55lH.exe	99
PID 3688 wrote to memory of 2372	3688	3te55lH.exe	99
PID 3688 wrote to memory of 2372	3688	3te55lH.exe	99
PID 3688 wrote to memory of 2372	3688	3te55lH.exe	99

C:\Users\Admin\AppData\Local\Temp\7f2d656f1a4331d02ffea567b5177c3a772a6a6e9c022b13e9042bd0dccbf324.exe
"C:\Users\Admin\AppData\Local\Temp\7f2d656f1a4331d02ffea567b5177c3a772a6a6e9c022b13e9042bd0dccbf324.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4288
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\wQ9Hq82.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\wQ9Hq82.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:1008
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Aa91Rd9.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Aa91Rd9.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:4332
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2qS2422.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2qS2422.exe
    3⤵
    - Executes dropped EXE
    PID:4668
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3te55lH.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3te55lH.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3688
- - 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:2372

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\3te55lH.exe

Filesize
973KB

MD5
5dc4be46727c1853e63ebdd240ec9bd9

SHA1
6265b41bbecbb96cf666d2b4cbd6f209f44d7a2d

SHA256
1df63e2de3adac7ff425c75b3f649078fd7a8e0008e5063bd290adb1cdba2446

SHA512
59828cba7af9fb26c6717eb3e655eec07f732ec92d3ec0cce7ed2df1acf6095dec2d97cdbbd3591ed96c08cb2adcff12c31534a93b48757ff8976c0a4233062b

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\wQ9Hq82.exe

Filesize
364KB

MD5
b8d672199c76119b66c2c48e1a5358e3

SHA1
fae47d050ccebbdba031ae817669f3e99fa2456e

SHA256
982709238d54e82a0f8788604af8ee343a70522d72279368a009923bf8ef2813

SHA512
93204b331d71e31e2b96120aef2e519457e2e9f3973e8f829ddb783b069e4f636127132e5cceed0d9365028f943e169ba45fd0f38b6763ce8864b92f670160ec

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Aa91Rd9.exe

Filesize
188KB

MD5
425e2a994509280a8c1e2812dfaad929

SHA1
4d5eff2fb3835b761e2516a873b537cbaacea1fe

SHA256
6f40f29ad16466785dfbe836dd375400949ff894e8aa03e2805ab1c1ac2d6f5a

SHA512
080a41e7926122e14b38901f2e1eb8100a08c5068a9a74099f060c5e601f056a66e607b4e006820276834bb01d913a3894de98e6d9ba62ce843df14058483aa0

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2qS2422.exe

Filesize
186KB

MD5
3a24a41f3044d90555f6cdea0f2533f8

SHA1
25a1913e9e41dd13039d023a5f63a050256c72ca

SHA256
5e900b7d563b6dc3f5c5db7386ae7ea83ec512b1a72a1cac6d16d17110a90253

SHA512
8d12aca702a3f81329fe0dad30b28269fd9933b5493e8d978080fbee9b66a1727b76b6230d910a9cda1ca68141b55ef7b63fd3f7de077eb453da7d8b44f5b837

Download Submit
memory/2372-29-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4332-18-0x0000000004950000-0x000000000496E000-memory.dmp

Filesize
120KB

Download
memory/4332-17-0x0000000004990000-0x0000000004F34000-memory.dmp

Filesize
5.6MB

Download
memory/4332-19-0x0000000005080000-0x0000000005112000-memory.dmp

Filesize
584KB

Download
memory/4332-20-0x0000000074890000-0x0000000075040000-memory.dmp

Filesize
7.7MB

Download
memory/4332-22-0x0000000074890000-0x0000000075040000-memory.dmp

Filesize
7.7MB

Download
memory/4332-16-0x0000000074890000-0x0000000075040000-memory.dmp

Filesize
7.7MB

Download
memory/4332-15-0x00000000022C0000-0x00000000022E0000-memory.dmp

Filesize
128KB

Download
memory/4332-14-0x000000007489E000-0x000000007489F000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads