mystic | 75edb521bbb0ae12b7c2c52fa6e3ed769f4e764e26b92ef2dc4d7cb78ed92fd9

Analysis

max time kernel
134s
max time network
103s
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 18:30

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General

Target

6be7b83314dc014eebc2d7cc17ce0021ea7d66e03bf91c49ddd8050fdb95b478.exe
Size

421KB
MD5

a724995af13018d9a70245cec8f7678c
SHA1

0a6821ee014bbc65ba0d5d93a0f9bfc27a59b8a7
SHA256

6be7b83314dc014eebc2d7cc17ce0021ea7d66e03bf91c49ddd8050fdb95b478
SHA512

ab2e981992379507a8c9ad0e1863022df69199815ee0637a794009487529baaa937f2f20538a8311662f18a45f4bb0d1d9838addca80925aa5693df89c9c9d90
SSDEEP

12288:XMrJy90h+08qFUvuohyGkUvWZ32N5spIb8lEQi:yyj08qF3oa2NPb8+F

Score

10^/10

mystic persistence stealer

Malware Config

Signatures

Detect Mystic stealer payload 4 IoCs

resource	yara_rule
behavioral9/memory/740-20-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral9/memory/740-21-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral9/memory/740-24-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral9/memory/740-22-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family

Mystic
Mystic is an infostealer written in C++.
stealer mystic

.NET Reactor proctector 2 IoCs

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

resource	yara_rule
behavioral9/memory/3368-8-0x0000000002280000-0x00000000022A0000-memory.dmp	net_reactor
behavioral9/memory/3368-11-0x0000000002670000-0x000000000268E000-memory.dmp	net_reactor

Executes dropped EXE 2 IoCs

pid	Process
3368	1BR81le0.exe
1604	2HZ1997.exe

Adds Run key to start application 2 TTPs 1 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\\\""	6be7b83314dc014eebc2d7cc17ce0021ea7d66e03bf91c49ddd8050fdb95b478.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1604 set thread context of 740	1604	2HZ1997.exe	96

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4076	1604	WerFault.exe	92

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3368	1BR81le0.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 4772 wrote to memory of 3368	4772	6be7b83314dc014eebc2d7cc17ce0021ea7d66e03bf91c49ddd8050fdb95b478.exe	83
PID 4772 wrote to memory of 3368	4772	6be7b83314dc014eebc2d7cc17ce0021ea7d66e03bf91c49ddd8050fdb95b478.exe	83
PID 4772 wrote to memory of 3368	4772	6be7b83314dc014eebc2d7cc17ce0021ea7d66e03bf91c49ddd8050fdb95b478.exe	83
PID 4772 wrote to memory of 1604	4772	6be7b83314dc014eebc2d7cc17ce0021ea7d66e03bf91c49ddd8050fdb95b478.exe	92
PID 4772 wrote to memory of 1604	4772	6be7b83314dc014eebc2d7cc17ce0021ea7d66e03bf91c49ddd8050fdb95b478.exe	92
PID 4772 wrote to memory of 1604	4772	6be7b83314dc014eebc2d7cc17ce0021ea7d66e03bf91c49ddd8050fdb95b478.exe	92
PID 1604 wrote to memory of 2236	1604	2HZ1997.exe	94
PID 1604 wrote to memory of 2236	1604	2HZ1997.exe	94
PID 1604 wrote to memory of 2236	1604	2HZ1997.exe	94
PID 1604 wrote to memory of 3480	1604	2HZ1997.exe	95
PID 1604 wrote to memory of 3480	1604	2HZ1997.exe	95
PID 1604 wrote to memory of 3480	1604	2HZ1997.exe	95
PID 1604 wrote to memory of 740	1604	2HZ1997.exe	96
PID 1604 wrote to memory of 740	1604	2HZ1997.exe	96
PID 1604 wrote to memory of 740	1604	2HZ1997.exe	96
PID 1604 wrote to memory of 740	1604	2HZ1997.exe	96
PID 1604 wrote to memory of 740	1604	2HZ1997.exe	96
PID 1604 wrote to memory of 740	1604	2HZ1997.exe	96
PID 1604 wrote to memory of 740	1604	2HZ1997.exe	96
PID 1604 wrote to memory of 740	1604	2HZ1997.exe	96
PID 1604 wrote to memory of 740	1604	2HZ1997.exe	96
PID 1604 wrote to memory of 740	1604	2HZ1997.exe	96

C:\Users\Admin\AppData\Local\Temp\6be7b83314dc014eebc2d7cc17ce0021ea7d66e03bf91c49ddd8050fdb95b478.exe
"C:\Users\Admin\AppData\Local\Temp\6be7b83314dc014eebc2d7cc17ce0021ea7d66e03bf91c49ddd8050fdb95b478.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4772
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1BR81le0.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1BR81le0.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:3368
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2HZ1997.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2HZ1997.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1604
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:2236
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:3480
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:740
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1604 -s 148
    3⤵
    - Program crash
    PID:4076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1604 -ip 1604
1⤵
PID:5032

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1BR81le0.exe

Filesize
188KB

MD5
425e2a994509280a8c1e2812dfaad929

SHA1
4d5eff2fb3835b761e2516a873b537cbaacea1fe

SHA256
6f40f29ad16466785dfbe836dd375400949ff894e8aa03e2805ab1c1ac2d6f5a

SHA512
080a41e7926122e14b38901f2e1eb8100a08c5068a9a74099f060c5e601f056a66e607b4e006820276834bb01d913a3894de98e6d9ba62ce843df14058483aa0

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2HZ1997.exe

Filesize
295KB

MD5
2535d13665aaea8bc291e0f740873a35

SHA1
700518b8ea3c64773e7e599a966db1132eb9cdc2

SHA256
8cc60ce23f0e123c796fabd56886254252bf42b0a9ee711fb0a84f229b87ecb4

SHA512
8a188c50f6bae7a325c9198c49f42bc2bc6f3e4e806649e24b6fff5eec513b097c057380a41595449e08c06f563f4017075344a07e984c9a9733f5285818000b

Download Submit
memory/740-22-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/740-24-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/740-21-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/740-20-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/3368-12-0x00000000741C0000-0x0000000074970000-memory.dmp

Filesize
7.7MB

Download
memory/3368-13-0x00000000741C0000-0x0000000074970000-memory.dmp

Filesize
7.7MB

Download
memory/3368-14-0x0000000005290000-0x0000000005322000-memory.dmp

Filesize
584KB

Download
memory/3368-16-0x00000000741C0000-0x0000000074970000-memory.dmp

Filesize
7.7MB

Download
memory/3368-11-0x0000000002670000-0x000000000268E000-memory.dmp

Filesize
120KB

Download
memory/3368-10-0x0000000004BE0000-0x0000000005184000-memory.dmp

Filesize
5.6MB

Download
memory/3368-9-0x00000000741C0000-0x0000000074970000-memory.dmp

Filesize
7.7MB

Download
memory/3368-8-0x0000000002280000-0x00000000022A0000-memory.dmp

Filesize
128KB

Download
memory/3368-7-0x00000000741CE000-0x00000000741CF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads