mystic | 7ad545bb4737b69c23cdad695529678edf0857220df5c0cf5ffeb6976f09d06e

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
11/10/2023, 16:46

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General

Target

x0915341.exe
Size

390KB
MD5

f5392a029dcc2a47d9fb5d9afe22d331
SHA1

6f7d07aaea42087afa71597e9ac041ee29a23bd0
SHA256

7ad545bb4737b69c23cdad695529678edf0857220df5c0cf5ffeb6976f09d06e
SHA512

7a510e5a2dbe10b448109405da21bc242e714ac41d56f02f10730b5c98e75f317793a5cdc7366e008ceee466e64ecd2541714cdf0cd137023acc6e6bc935e896
SSDEEP

12288:JMrcy90SNC9LtC9CMwrxUIAiEZZgJ3Bjzv:dyTNC9LMLwrx1Oizv

Score

10^/10

mystic persistence stealer

Malware Config

Signatures

Detect Mystic stealer payload 6 IoCs

resource	yara_rule
behavioral1/memory/2624-16-0x0000000000400000-0x0000000000428000-memory.dmp	family_mystic
behavioral1/memory/2624-17-0x0000000000400000-0x0000000000428000-memory.dmp	family_mystic
behavioral1/memory/2624-18-0x0000000000400000-0x0000000000428000-memory.dmp	family_mystic
behavioral1/memory/2624-20-0x0000000000400000-0x0000000000428000-memory.dmp	family_mystic
behavioral1/memory/2624-22-0x0000000000400000-0x0000000000428000-memory.dmp	family_mystic
behavioral1/memory/2624-24-0x0000000000400000-0x0000000000428000-memory.dmp	family_mystic

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

Executes dropped EXE 1 IoCs

pid	Process
2852	g0620430.exe

Loads dropped DLL 7 IoCs

pid	Process
2584	x0915341.exe
2584	x0915341.exe
2852	g0620430.exe
2764	WerFault.exe
2764	WerFault.exe
2764	WerFault.exe
2764	WerFault.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\\\""	x0915341.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2852 set thread context of 2624	2852	g0620430.exe	30

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2764	2852	WerFault.exe	28
2640	2624	WerFault.exe	30

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 2584 wrote to memory of 2852	2584	x0915341.exe	28
PID 2584 wrote to memory of 2852	2584	x0915341.exe	28
PID 2584 wrote to memory of 2852	2584	x0915341.exe	28
PID 2584 wrote to memory of 2852	2584	x0915341.exe	28
PID 2584 wrote to memory of 2852	2584	x0915341.exe	28
PID 2584 wrote to memory of 2852	2584	x0915341.exe	28
PID 2584 wrote to memory of 2852	2584	x0915341.exe	28
PID 2852 wrote to memory of 2092	2852	g0620430.exe	29
PID 2852 wrote to memory of 2092	2852	g0620430.exe	29
PID 2852 wrote to memory of 2092	2852	g0620430.exe	29
PID 2852 wrote to memory of 2092	2852	g0620430.exe	29
PID 2852 wrote to memory of 2092	2852	g0620430.exe	29
PID 2852 wrote to memory of 2092	2852	g0620430.exe	29
PID 2852 wrote to memory of 2092	2852	g0620430.exe	29
PID 2852 wrote to memory of 2624	2852	g0620430.exe	30
PID 2852 wrote to memory of 2624	2852	g0620430.exe	30
PID 2852 wrote to memory of 2624	2852	g0620430.exe	30
PID 2852 wrote to memory of 2624	2852	g0620430.exe	30
PID 2852 wrote to memory of 2624	2852	g0620430.exe	30
PID 2852 wrote to memory of 2624	2852	g0620430.exe	30
PID 2852 wrote to memory of 2624	2852	g0620430.exe	30
PID 2852 wrote to memory of 2624	2852	g0620430.exe	30
PID 2852 wrote to memory of 2624	2852	g0620430.exe	30
PID 2852 wrote to memory of 2624	2852	g0620430.exe	30
PID 2852 wrote to memory of 2624	2852	g0620430.exe	30
PID 2852 wrote to memory of 2624	2852	g0620430.exe	30
PID 2852 wrote to memory of 2624	2852	g0620430.exe	30
PID 2852 wrote to memory of 2624	2852	g0620430.exe	30
PID 2852 wrote to memory of 2764	2852	g0620430.exe	31
PID 2852 wrote to memory of 2764	2852	g0620430.exe	31
PID 2852 wrote to memory of 2764	2852	g0620430.exe	31
PID 2852 wrote to memory of 2764	2852	g0620430.exe	31
PID 2852 wrote to memory of 2764	2852	g0620430.exe	31
PID 2852 wrote to memory of 2764	2852	g0620430.exe	31
PID 2852 wrote to memory of 2764	2852	g0620430.exe	31
PID 2624 wrote to memory of 2640	2624	AppLaunch.exe	32
PID 2624 wrote to memory of 2640	2624	AppLaunch.exe	32
PID 2624 wrote to memory of 2640	2624	AppLaunch.exe	32
PID 2624 wrote to memory of 2640	2624	AppLaunch.exe	32
PID 2624 wrote to memory of 2640	2624	AppLaunch.exe	32
PID 2624 wrote to memory of 2640	2624	AppLaunch.exe	32
PID 2624 wrote to memory of 2640	2624	AppLaunch.exe	32

C:\Users\Admin\AppData\Local\Temp\x0915341.exe
"C:\Users\Admin\AppData\Local\Temp\x0915341.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2584
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\g0620430.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\g0620430.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2852
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:2092
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2624
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2624 -s 268
      4⤵
      Program crash
      PID:2640
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2852 -s 280
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2764

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\g0620430.exe

Filesize
364KB

MD5
798dea0595c38bbe253a92b81c1ee0e6

SHA1
158bca51c0ff64df2302f27350d94f8dab4965d3

SHA256
7fabc67597112bb09851de313464014d2cd6edf3594cc77e70775f308609821d

SHA512
f78b4d493a67012ede00127b23eb1919a5db90c6f83f2e93275952f003e7f2fe6d16c9d905e952a8f11c67fd72f50456246deb829e7b93c29191af19e48ea476

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\g0620430.exe

Filesize
364KB

MD5
798dea0595c38bbe253a92b81c1ee0e6

SHA1
158bca51c0ff64df2302f27350d94f8dab4965d3

SHA256
7fabc67597112bb09851de313464014d2cd6edf3594cc77e70775f308609821d

SHA512
f78b4d493a67012ede00127b23eb1919a5db90c6f83f2e93275952f003e7f2fe6d16c9d905e952a8f11c67fd72f50456246deb829e7b93c29191af19e48ea476

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\g0620430.exe

Filesize
364KB

MD5
798dea0595c38bbe253a92b81c1ee0e6

SHA1
158bca51c0ff64df2302f27350d94f8dab4965d3

SHA256
7fabc67597112bb09851de313464014d2cd6edf3594cc77e70775f308609821d

SHA512
f78b4d493a67012ede00127b23eb1919a5db90c6f83f2e93275952f003e7f2fe6d16c9d905e952a8f11c67fd72f50456246deb829e7b93c29191af19e48ea476

Download Submit
\Users\Admin\AppData\Local\Temp\IXP000.TMP\g0620430.exe

Filesize
364KB

MD5
798dea0595c38bbe253a92b81c1ee0e6

SHA1
158bca51c0ff64df2302f27350d94f8dab4965d3

SHA256
7fabc67597112bb09851de313464014d2cd6edf3594cc77e70775f308609821d

SHA512
f78b4d493a67012ede00127b23eb1919a5db90c6f83f2e93275952f003e7f2fe6d16c9d905e952a8f11c67fd72f50456246deb829e7b93c29191af19e48ea476

Download Submit
\Users\Admin\AppData\Local\Temp\IXP000.TMP\g0620430.exe

Filesize
364KB

MD5
798dea0595c38bbe253a92b81c1ee0e6

SHA1
158bca51c0ff64df2302f27350d94f8dab4965d3

SHA256
7fabc67597112bb09851de313464014d2cd6edf3594cc77e70775f308609821d

SHA512
f78b4d493a67012ede00127b23eb1919a5db90c6f83f2e93275952f003e7f2fe6d16c9d905e952a8f11c67fd72f50456246deb829e7b93c29191af19e48ea476

Download Submit
\Users\Admin\AppData\Local\Temp\IXP000.TMP\g0620430.exe

Filesize
364KB

MD5
798dea0595c38bbe253a92b81c1ee0e6

SHA1
158bca51c0ff64df2302f27350d94f8dab4965d3

SHA256
7fabc67597112bb09851de313464014d2cd6edf3594cc77e70775f308609821d

SHA512
f78b4d493a67012ede00127b23eb1919a5db90c6f83f2e93275952f003e7f2fe6d16c9d905e952a8f11c67fd72f50456246deb829e7b93c29191af19e48ea476

Download Submit
\Users\Admin\AppData\Local\Temp\IXP000.TMP\g0620430.exe

Filesize
364KB

MD5
798dea0595c38bbe253a92b81c1ee0e6

SHA1
158bca51c0ff64df2302f27350d94f8dab4965d3

SHA256
7fabc67597112bb09851de313464014d2cd6edf3594cc77e70775f308609821d

SHA512
f78b4d493a67012ede00127b23eb1919a5db90c6f83f2e93275952f003e7f2fe6d16c9d905e952a8f11c67fd72f50456246deb829e7b93c29191af19e48ea476

Download Submit
\Users\Admin\AppData\Local\Temp\IXP000.TMP\g0620430.exe

Filesize
364KB

MD5
798dea0595c38bbe253a92b81c1ee0e6

SHA1
158bca51c0ff64df2302f27350d94f8dab4965d3

SHA256
7fabc67597112bb09851de313464014d2cd6edf3594cc77e70775f308609821d

SHA512
f78b4d493a67012ede00127b23eb1919a5db90c6f83f2e93275952f003e7f2fe6d16c9d905e952a8f11c67fd72f50456246deb829e7b93c29191af19e48ea476

Download Submit
\Users\Admin\AppData\Local\Temp\IXP000.TMP\g0620430.exe

Filesize
364KB

MD5
798dea0595c38bbe253a92b81c1ee0e6

SHA1
158bca51c0ff64df2302f27350d94f8dab4965d3

SHA256
7fabc67597112bb09851de313464014d2cd6edf3594cc77e70775f308609821d

SHA512
f78b4d493a67012ede00127b23eb1919a5db90c6f83f2e93275952f003e7f2fe6d16c9d905e952a8f11c67fd72f50456246deb829e7b93c29191af19e48ea476

Download Submit
\Users\Admin\AppData\Local\Temp\IXP000.TMP\g0620430.exe

Filesize
364KB

MD5
798dea0595c38bbe253a92b81c1ee0e6

SHA1
158bca51c0ff64df2302f27350d94f8dab4965d3

SHA256
7fabc67597112bb09851de313464014d2cd6edf3594cc77e70775f308609821d

SHA512
f78b4d493a67012ede00127b23eb1919a5db90c6f83f2e93275952f003e7f2fe6d16c9d905e952a8f11c67fd72f50456246deb829e7b93c29191af19e48ea476

Download Submit
memory/2624-17-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2624-18-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2624-19-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2624-20-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2624-22-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2624-24-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2624-16-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2624-15-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2624-14-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2624-13-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads