mystic | 87d604200f8deb80a26f303362d4e9e337eebfeb4b0f56d551bfff65c925a19e

Analysis

max time kernel
16s
max time network
17s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-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 6 IoCs

resource	yara_rule
behavioral1/memory/2428-9-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral1/memory/2428-5-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral1/memory/2428-4-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral1/memory/2428-3-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral1/memory/2428-7-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral1/memory/2428-11-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1984 set thread context of 2428	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	33

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2944	2428	WerFault.exe	33

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

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 2916	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	31
PID 1984 wrote to memory of 2916	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	31
PID 1984 wrote to memory of 2916	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	31
PID 1984 wrote to memory of 2916	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	31
PID 1984 wrote to memory of 2916	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	31
PID 1984 wrote to memory of 2916	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	31
PID 1984 wrote to memory of 2916	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	31
PID 1984 wrote to memory of 2860	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	32
PID 1984 wrote to memory of 2860	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	32
PID 1984 wrote to memory of 2860	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	32
PID 1984 wrote to memory of 2860	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	32
PID 1984 wrote to memory of 2860	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	32
PID 1984 wrote to memory of 2860	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	32
PID 1984 wrote to memory of 2860	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	32
PID 1984 wrote to memory of 2428	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	33
PID 1984 wrote to memory of 2428	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	33
PID 1984 wrote to memory of 2428	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	33
PID 1984 wrote to memory of 2428	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	33
PID 1984 wrote to memory of 2428	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	33
PID 1984 wrote to memory of 2428	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	33
PID 1984 wrote to memory of 2428	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	33
PID 1984 wrote to memory of 2428	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	33
PID 1984 wrote to memory of 2428	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	33
PID 1984 wrote to memory of 2428	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	33
PID 1984 wrote to memory of 2428	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	33
PID 1984 wrote to memory of 2428	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	33
PID 1984 wrote to memory of 2428	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	33
PID 1984 wrote to memory of 2428	1984	79eba2fb3c3c2f85ea2df23b8fc84640N.exe	33
PID 2428 wrote to memory of 2944	2428	AppLaunch.exe	34
PID 2428 wrote to memory of 2944	2428	AppLaunch.exe	34
PID 2428 wrote to memory of 2944	2428	AppLaunch.exe	34
PID 2428 wrote to memory of 2944	2428	AppLaunch.exe	34
PID 2428 wrote to memory of 2944	2428	AppLaunch.exe	34
PID 2428 wrote to memory of 2944	2428	AppLaunch.exe	34
PID 2428 wrote to memory of 2944	2428	AppLaunch.exe	34

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:1984
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
  2⤵
  PID:2916
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
  2⤵
  PID:2860
- 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:2428
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2428 -s 196
    3⤵
    - Program crash
    PID:2944

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/2428-6-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2428-9-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2428-5-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2428-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2428-3-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2428-2-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2428-1-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2428-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2428-7-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2428-11-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download