mystic | 5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378

General

Target

5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378N.exe
Size

364KB
MD5

1677a9f628d12e35bb0d87c9218cf160
SHA1

59d513fd06c7e5a218270b8d6ef646501a035c62
SHA256

5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378
SHA512

b741bcd56df6b2886c5d09c29f003208d8156ae7a1b82a5a2880822b9f6e428abcad56d41cd7199c7d286aa6dae0fa4e3450c96d5dc7c0b68779f5184552ee06
SSDEEP

6144:VK46fuYXChoQTjlFgLuCY1dRuAOlwCkKft1ADjm2LkYCwVz0eFR2Y3lGnnnnvBgF:VvYzXChdTbv1buYWtEL3KeFR2Y3lgnnT

Score

10^/10

Malware Config

Signatures

Detect Mystic stealer payload 6 IoCs

resource	yara_rule
behavioral1/memory/1192-4-0x0000000000400000-0x000000000042C000-memory.dmp	mystic_family
behavioral1/memory/1192-7-0x0000000000400000-0x000000000042C000-memory.dmp	mystic_family
behavioral1/memory/1192-5-0x0000000000400000-0x000000000042C000-memory.dmp	mystic_family
behavioral1/memory/1192-9-0x0000000000400000-0x000000000042C000-memory.dmp	mystic_family
behavioral1/memory/1192-3-0x0000000000400000-0x000000000042C000-memory.dmp	mystic_family
behavioral1/memory/1192-11-0x0000000000400000-0x000000000042C000-memory.dmp	mystic_family

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2480 set thread context of 1192	2480	5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378N.exe	31

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1368	2480	WerFault.exe	30
2336	1192	WerFault.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AppLaunch.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2480 wrote to memory of 1192	2480	5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378N.exe	31
PID 2480 wrote to memory of 1192	2480	5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378N.exe	31
PID 2480 wrote to memory of 1192	2480	5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378N.exe	31
PID 2480 wrote to memory of 1192	2480	5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378N.exe	31
PID 2480 wrote to memory of 1192	2480	5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378N.exe	31
PID 2480 wrote to memory of 1192	2480	5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378N.exe	31
PID 2480 wrote to memory of 1192	2480	5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378N.exe	31
PID 2480 wrote to memory of 1192	2480	5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378N.exe	31
PID 2480 wrote to memory of 1192	2480	5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378N.exe	31
PID 2480 wrote to memory of 1192	2480	5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378N.exe	31
PID 2480 wrote to memory of 1192	2480	5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378N.exe	31
PID 2480 wrote to memory of 1192	2480	5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378N.exe	31
PID 2480 wrote to memory of 1192	2480	5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378N.exe	31
PID 2480 wrote to memory of 1192	2480	5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378N.exe	31
PID 2480 wrote to memory of 1368	2480	5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378N.exe	32
PID 2480 wrote to memory of 1368	2480	5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378N.exe	32
PID 2480 wrote to memory of 1368	2480	5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378N.exe	32
PID 2480 wrote to memory of 1368	2480	5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378N.exe	32
PID 1192 wrote to memory of 2336	1192	AppLaunch.exe	33
PID 1192 wrote to memory of 2336	1192	AppLaunch.exe	33
PID 1192 wrote to memory of 2336	1192	AppLaunch.exe	33
PID 1192 wrote to memory of 2336	1192	AppLaunch.exe	33
PID 1192 wrote to memory of 2336	1192	AppLaunch.exe	33
PID 1192 wrote to memory of 2336	1192	AppLaunch.exe	33
PID 1192 wrote to memory of 2336	1192	AppLaunch.exe	33

C:\Users\Admin\AppData\Local\Temp\5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378N.exe
"C:\Users\Admin\AppData\Local\Temp\5e2a0adfbf8669b999dcffaeae361d66c6d436d944a2bb871a41a0d2032b8378N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2480
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1192
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1192 -s 196
    3⤵
    - Program crash
    PID:2336
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2480 -s 52
  2⤵
  - Program crash
  PID:1368

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1192-0-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1192-4-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1192-7-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1192-5-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1192-9-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1192-2-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1192-3-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1192-1-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1192-6-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/1192-11-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download

Analysis

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