mystic | 87d604200f8deb80a26f303362d4e9e337eebfeb4b0f56d551bfff65c925a19e

Analysis

max time kernel
107s
max time network
107s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
22-08-2024 02:09

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General

Target

79eba2fb3c3c2f85ea2df23b8fc84640N.exe
Size

358KB
MD5

79eba2fb3c3c2f85ea2df23b8fc84640
SHA1

f419c9c3376879c2040ac95791a88d740d919a9a
SHA256

87d604200f8deb80a26f303362d4e9e337eebfeb4b0f56d551bfff65c925a19e
SHA512

9b63648fdb187f04a2458fe738f12a8162fd9ca2076eeaaa828cc05d068be1f9751627a24737ad12190600d462e3af3c27c03b576db1ea8fe5f260209b895a61
SSDEEP

6144:f/NXR/bOEHHkwxOSeyCKrJz4AOoR8SnjaA+vzC1rKCWg8fi:HNX1aEHEw94mRHjozClv8fi

Score

10^/10

mystic discovery stealer

Malware Config

Signatures

Detect Mystic stealer payload 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3320-0-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral2/memory/3320-1-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral2/memory/3320-2-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral2/memory/3320-3-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family

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

Processes:

79eba2fb3c3c2f85ea2df23b8fc84640N.exe

description pid process target process

PID 4388 set thread context of 3320 4388 79eba2fb3c3c2f85ea2df23b8fc84640N.exe AppLaunch.exe
System Location Discovery: System Language Discovery 1 TTPs 1 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:

79eba2fb3c3c2f85ea2df23b8fc84640N.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 79eba2fb3c3c2f85ea2df23b8fc84640N.exe

description	pid	process	target process
PID 4388 set thread context of 3320	4388	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	AppLaunch.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	79eba2fb3c3c2f85ea2df23b8fc84640N.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

79eba2fb3c3c2f85ea2df23b8fc84640N.exe

description	pid	process	target process
PID 4388 wrote to memory of 3504	4388	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	AppLaunch.exe
PID 4388 wrote to memory of 3504	4388	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	AppLaunch.exe
PID 4388 wrote to memory of 3504	4388	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	AppLaunch.exe
PID 4388 wrote to memory of 4836	4388	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	AppLaunch.exe
PID 4388 wrote to memory of 4836	4388	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	AppLaunch.exe
PID 4388 wrote to memory of 4836	4388	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	AppLaunch.exe
PID 4388 wrote to memory of 1424	4388	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	AppLaunch.exe
PID 4388 wrote to memory of 1424	4388	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	AppLaunch.exe
PID 4388 wrote to memory of 1424	4388	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	AppLaunch.exe
PID 4388 wrote to memory of 4268	4388	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	AppLaunch.exe
PID 4388 wrote to memory of 4268	4388	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	AppLaunch.exe
PID 4388 wrote to memory of 4268	4388	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	AppLaunch.exe
PID 4388 wrote to memory of 3320	4388	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	AppLaunch.exe
PID 4388 wrote to memory of 3320	4388	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	AppLaunch.exe
PID 4388 wrote to memory of 3320	4388	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	AppLaunch.exe
PID 4388 wrote to memory of 3320	4388	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	AppLaunch.exe
PID 4388 wrote to memory of 3320	4388	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	AppLaunch.exe
PID 4388 wrote to memory of 3320	4388	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	AppLaunch.exe
PID 4388 wrote to memory of 3320	4388	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	AppLaunch.exe
PID 4388 wrote to memory of 3320	4388	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	AppLaunch.exe
PID 4388 wrote to memory of 3320	4388	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	AppLaunch.exe
PID 4388 wrote to memory of 3320	4388	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\79eba2fb3c3c2f85ea2df23b8fc84640N.exe
"C:\Users\Admin\AppData\Local\Temp\79eba2fb3c3c2f85ea2df23b8fc84640N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4388

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
2⤵
PID:3504

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
2⤵
PID:4836

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
2⤵
PID:1424

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
2⤵
PID:4268

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
2⤵
PID:3320

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3320-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3320-1-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3320-2-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3320-3-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download