mystic | 0dbc220cdd1e829db342525158a1402fead21f8931411b41235ec083ce56ab50

General

Target

123d187ccb46d1d8e892e9e9be0b9b60N.exe
Size

1.8MB
MD5

123d187ccb46d1d8e892e9e9be0b9b60
SHA1

82c5bb0f78a641c3bbf4b0bbda279a29d6468969
SHA256

0dbc220cdd1e829db342525158a1402fead21f8931411b41235ec083ce56ab50
SHA512

04cee82c24856c20ce6ade46dd2d14134dd8a1bbdcff4f10ab09233fa4768dae1a0fd19b285e3fd38520a4a6f49f0d34f6aebb1e0b4df46d62449619e38f315d
SSDEEP

24576:iGAfSfS8a1TD3EvdxE6a9DhvhgkwDWVlct0q76I:iIS8a1TAdW6a3vQWItp6

Score

10^/10

mystic discovery stealer

Malware Config

Signatures

Detect Mystic stealer payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1436-5-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral1/memory/1436-9-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral1/memory/1436-7-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral1/memory/1436-4-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral1/memory/1436-3-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral1/memory/1436-11-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family

Mystic
Mystic is an infostealer written in C++.
stealer mystic
Suspicious use of SetThreadContext 1 IoCs

Processes:

123d187ccb46d1d8e892e9e9be0b9b60N.exe

description pid process target process

PID 1828 set thread context of 1436 1828 123d187ccb46d1d8e892e9e9be0b9b60N.exe AppLaunch.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1440 1436 WerFault.exe AppLaunch.exe

description	pid	process	target process
PID 1828 set thread context of 1436	1828	123d187ccb46d1d8e892e9e9be0b9b60N.exe	AppLaunch.exe

pid	pid_target	process	target process
1440	1436	WerFault.exe	AppLaunch.exe

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

Processes:

123d187ccb46d1d8e892e9e9be0b9b60N.exeAppLaunch.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	123d187ccb46d1d8e892e9e9be0b9b60N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AppLaunch.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

123d187ccb46d1d8e892e9e9be0b9b60N.exeAppLaunch.exe

description	pid	process	target process
PID 1828 wrote to memory of 1436	1828	123d187ccb46d1d8e892e9e9be0b9b60N.exe	AppLaunch.exe
PID 1828 wrote to memory of 1436	1828	123d187ccb46d1d8e892e9e9be0b9b60N.exe	AppLaunch.exe
PID 1828 wrote to memory of 1436	1828	123d187ccb46d1d8e892e9e9be0b9b60N.exe	AppLaunch.exe
PID 1828 wrote to memory of 1436	1828	123d187ccb46d1d8e892e9e9be0b9b60N.exe	AppLaunch.exe
PID 1828 wrote to memory of 1436	1828	123d187ccb46d1d8e892e9e9be0b9b60N.exe	AppLaunch.exe
PID 1828 wrote to memory of 1436	1828	123d187ccb46d1d8e892e9e9be0b9b60N.exe	AppLaunch.exe
PID 1828 wrote to memory of 1436	1828	123d187ccb46d1d8e892e9e9be0b9b60N.exe	AppLaunch.exe
PID 1828 wrote to memory of 1436	1828	123d187ccb46d1d8e892e9e9be0b9b60N.exe	AppLaunch.exe
PID 1828 wrote to memory of 1436	1828	123d187ccb46d1d8e892e9e9be0b9b60N.exe	AppLaunch.exe
PID 1828 wrote to memory of 1436	1828	123d187ccb46d1d8e892e9e9be0b9b60N.exe	AppLaunch.exe
PID 1828 wrote to memory of 1436	1828	123d187ccb46d1d8e892e9e9be0b9b60N.exe	AppLaunch.exe
PID 1828 wrote to memory of 1436	1828	123d187ccb46d1d8e892e9e9be0b9b60N.exe	AppLaunch.exe
PID 1828 wrote to memory of 1436	1828	123d187ccb46d1d8e892e9e9be0b9b60N.exe	AppLaunch.exe
PID 1828 wrote to memory of 1436	1828	123d187ccb46d1d8e892e9e9be0b9b60N.exe	AppLaunch.exe
PID 1436 wrote to memory of 1440	1436	AppLaunch.exe	WerFault.exe
PID 1436 wrote to memory of 1440	1436	AppLaunch.exe	WerFault.exe
PID 1436 wrote to memory of 1440	1436	AppLaunch.exe	WerFault.exe
PID 1436 wrote to memory of 1440	1436	AppLaunch.exe	WerFault.exe
PID 1436 wrote to memory of 1440	1436	AppLaunch.exe	WerFault.exe
PID 1436 wrote to memory of 1440	1436	AppLaunch.exe	WerFault.exe
PID 1436 wrote to memory of 1440	1436	AppLaunch.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\123d187ccb46d1d8e892e9e9be0b9b60N.exe
"C:\Users\Admin\AppData\Local\Temp\123d187ccb46d1d8e892e9e9be0b9b60N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1828

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:1436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1436 -s 196
3⤵
- Program crash
PID:1440

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

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Downloads

memory/1436-0-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1436-5-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1436-9-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1436-7-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1436-4-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1436-3-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1436-2-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1436-1-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1436-6-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/1436-11-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads