mystic | 3767bd9b929fb47ae3b158c424044d32b3c87ffb6efc8eb109dc1df9f3d9b053

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
24-05-2024 08:20

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General

Target

779aae8d260600fca091beb81ca497c21eb41aec31324f8fb00764038f5235ea.exe
Size

839KB
MD5

7f8ac6fc633a133ac4398d0460fce273
SHA1

40f71057a5b04b180960a954fb41aa832a404d22
SHA256

779aae8d260600fca091beb81ca497c21eb41aec31324f8fb00764038f5235ea
SHA512

cf843a3711aff18abe98e081e4ade629eb0eebeccde423094ca7283dde8ec4082a38e862a413f0af9816060c7f8ae7d0dc308cd0c1148e52bcbc03d13158b799
SSDEEP

24576:zyMd2GFla0vq5RCW6gpgeD/sH71oaSUxgnhnmUG2M40:GMDFg0veCxgpLLS2ignZdG2M4

Score

10^/10

mystic redline smokeloader breha backdoor infostealer persistence stealer trojan

Malware Config

Extracted

Family

redline

Botnet

breha

77.91.124.55:19071

Signatures

Detect Mystic stealer payload 3 IoCs

resource	yara_rule
behavioral9/memory/4756-29-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral9/memory/4756-32-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral9/memory/4756-30-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family

Mystic
Mystic is an infostealer written in C++.
stealer mystic
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

RedLine payload 1 IoCs

resource	yara_rule
behavioral9/memory/2148-40-0x0000000000400000-0x000000000043E000-memory.dmp	family_redline

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader

.NET Reactor proctector 2 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

resource	yara_rule
behavioral9/memory/3140-21-0x00000000020D0000-0x00000000020F0000-memory.dmp	net_reactor
behavioral9/memory/3140-23-0x0000000002160000-0x000000000217E000-memory.dmp	net_reactor

Executes dropped EXE 6 IoCs

pid	Process
3196	Kz2XK66.exe
2720	gD6FW16.exe
3140	1St52ga2.exe
3272	2sE7031.exe
2140	3Fd70Sh.exe
2004	4hm869uB.exe

Adds Run key to start application 2 TTPs 3 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\\\""	779aae8d260600fca091beb81ca497c21eb41aec31324f8fb00764038f5235ea.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup1 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP001.TMP\\\""	Kz2XK66.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup2 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP002.TMP\\\""	gD6FW16.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3272 set thread context of 4756	3272	2sE7031.exe	97
PID 2140 set thread context of 980	2140	3Fd70Sh.exe	103
PID 2004 set thread context of 2148	2004	4hm869uB.exe	109

Program crash 3 IoCs

pid	pid_target	Process	procid_target
768	3272	WerFault.exe	93
4764	2140	WerFault.exe	101
4496	2004	WerFault.exe	106

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	AppLaunch.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	AppLaunch.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	AppLaunch.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3140	1St52ga2.exe

Suspicious use of WriteProcessMemory 51 IoCs

description	pid	Process	procid_target
PID 316 wrote to memory of 3196	316	779aae8d260600fca091beb81ca497c21eb41aec31324f8fb00764038f5235ea.exe	82
PID 316 wrote to memory of 3196	316	779aae8d260600fca091beb81ca497c21eb41aec31324f8fb00764038f5235ea.exe	82
PID 316 wrote to memory of 3196	316	779aae8d260600fca091beb81ca497c21eb41aec31324f8fb00764038f5235ea.exe	82
PID 3196 wrote to memory of 2720	3196	Kz2XK66.exe	83
PID 3196 wrote to memory of 2720	3196	Kz2XK66.exe	83
PID 3196 wrote to memory of 2720	3196	Kz2XK66.exe	83
PID 2720 wrote to memory of 3140	2720	gD6FW16.exe	85
PID 2720 wrote to memory of 3140	2720	gD6FW16.exe	85
PID 2720 wrote to memory of 3140	2720	gD6FW16.exe	85
PID 2720 wrote to memory of 3272	2720	gD6FW16.exe	93
PID 2720 wrote to memory of 3272	2720	gD6FW16.exe	93
PID 2720 wrote to memory of 3272	2720	gD6FW16.exe	93
PID 3272 wrote to memory of 4980	3272	2sE7031.exe	95
PID 3272 wrote to memory of 4980	3272	2sE7031.exe	95
PID 3272 wrote to memory of 4980	3272	2sE7031.exe	95
PID 3272 wrote to memory of 4464	3272	2sE7031.exe	96
PID 3272 wrote to memory of 4464	3272	2sE7031.exe	96
PID 3272 wrote to memory of 4464	3272	2sE7031.exe	96
PID 3272 wrote to memory of 4756	3272	2sE7031.exe	97
PID 3272 wrote to memory of 4756	3272	2sE7031.exe	97
PID 3272 wrote to memory of 4756	3272	2sE7031.exe	97
PID 3272 wrote to memory of 4756	3272	2sE7031.exe	97
PID 3272 wrote to memory of 4756	3272	2sE7031.exe	97
PID 3272 wrote to memory of 4756	3272	2sE7031.exe	97
PID 3272 wrote to memory of 4756	3272	2sE7031.exe	97
PID 3272 wrote to memory of 4756	3272	2sE7031.exe	97
PID 3272 wrote to memory of 4756	3272	2sE7031.exe	97
PID 3272 wrote to memory of 4756	3272	2sE7031.exe	97
PID 3196 wrote to memory of 2140	3196	Kz2XK66.exe	101
PID 3196 wrote to memory of 2140	3196	Kz2XK66.exe	101
PID 3196 wrote to memory of 2140	3196	Kz2XK66.exe	101
PID 2140 wrote to memory of 980	2140	3Fd70Sh.exe	103
PID 2140 wrote to memory of 980	2140	3Fd70Sh.exe	103
PID 2140 wrote to memory of 980	2140	3Fd70Sh.exe	103
PID 2140 wrote to memory of 980	2140	3Fd70Sh.exe	103
PID 2140 wrote to memory of 980	2140	3Fd70Sh.exe	103
PID 2140 wrote to memory of 980	2140	3Fd70Sh.exe	103
PID 316 wrote to memory of 2004	316	779aae8d260600fca091beb81ca497c21eb41aec31324f8fb00764038f5235ea.exe	106
PID 316 wrote to memory of 2004	316	779aae8d260600fca091beb81ca497c21eb41aec31324f8fb00764038f5235ea.exe	106
PID 316 wrote to memory of 2004	316	779aae8d260600fca091beb81ca497c21eb41aec31324f8fb00764038f5235ea.exe	106
PID 2004 wrote to memory of 2412	2004	4hm869uB.exe	108
PID 2004 wrote to memory of 2412	2004	4hm869uB.exe	108
PID 2004 wrote to memory of 2412	2004	4hm869uB.exe	108
PID 2004 wrote to memory of 2148	2004	4hm869uB.exe	109
PID 2004 wrote to memory of 2148	2004	4hm869uB.exe	109
PID 2004 wrote to memory of 2148	2004	4hm869uB.exe	109
PID 2004 wrote to memory of 2148	2004	4hm869uB.exe	109
PID 2004 wrote to memory of 2148	2004	4hm869uB.exe	109
PID 2004 wrote to memory of 2148	2004	4hm869uB.exe	109
PID 2004 wrote to memory of 2148	2004	4hm869uB.exe	109
PID 2004 wrote to memory of 2148	2004	4hm869uB.exe	109

C:\Users\Admin\AppData\Local\Temp\779aae8d260600fca091beb81ca497c21eb41aec31324f8fb00764038f5235ea.exe
"C:\Users\Admin\AppData\Local\Temp\779aae8d260600fca091beb81ca497c21eb41aec31324f8fb00764038f5235ea.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:316
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Kz2XK66.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Kz2XK66.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:3196
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\gD6FW16.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\gD6FW16.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of WriteProcessMemory
    PID:2720
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\1St52ga2.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\1St52ga2.exe
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      PID:3140
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\2sE7031.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\2sE7031.exe
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of WriteProcessMemory
      PID:3272
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
        5⤵
        
        PID:4980
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
        5⤵
        
        PID:4464
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
        5⤵
        
        PID:4756
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3272 -s 608
        5⤵
        Program crash
        
        PID:768
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3Fd70Sh.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3Fd70Sh.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2140
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      Checks SCSI registry key(s)
      PID:980
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2140 -s 584
      4⤵
      Program crash
      PID:4764
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4hm869uB.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4hm869uB.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2004
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:2412
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:2148
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2004 -s 580
    3⤵
    - Program crash
    PID:4496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3272 -ip 3272
1⤵
PID:860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 2140 -ip 2140
1⤵
PID:1428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 2004 -ip 2004
1⤵
PID:4040

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

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4hm869uB.exe

Filesize
336KB

MD5
2e82ee35715ee86201262ec7b9348fc9

SHA1
927045936a1b36ecf21d696049bc655932cee19b

SHA256
c7d694c80276b7057af297e407ddbfa59be3393d294dab592f8ea964652917d9

SHA512
06cc7b36c84a2c310579afc8c8b16a4225db46b26aae608ab7d2e887edb3d2f3aa71cba1d669c2c21c8693b3c1f08f6bebf1cf505d0e041c0508d34aaca2b195

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Kz2XK66.exe

Filesize
605KB

MD5
770ec911d1da5dfabe2269d37fc258d2

SHA1
cc86e9ff23dd489e906ab4c5f165fd1bd07f5b61

SHA256
70c4d425f3dbd1d61467da2ea78e680c3fb257b693fec0ec58d4f5b962162ba6

SHA512
db1c1f62154e70edeeec9fd48a51a85816bb33b384ba4d7580d5b5e9744e1576311528a9e0d649cb0f5dba2457a375e0882d44e66911fbdb2153663abe3c618c

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3Fd70Sh.exe

Filesize
145KB

MD5
62b61051dd313eeac2afb396429ca99a

SHA1
deb0009d2f5fcd031e3391b205a8a02fcd464559

SHA256
b68a611e953fb56f507e636345cdc43ce7f2d232e1e5762169615647c4977970

SHA512
fbec9abaeb580e9ef2b8b64a136efe117e1743663ff4a6057ab12072db36891de14fec78e17e579109cf7668bf1f5af9beddfed4077fa5cfdf927b4516c15278

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\gD6FW16.exe

Filesize
421KB

MD5
905dc84abad824db15c5c27841d8014e

SHA1
0b1a75d67fa04e1866071e7567cf93cdd0c02c55

SHA256
c67452b80aaf2fcd46eed2fc6fc4ecf359d2b770f58ce026950426bee466b366

SHA512
17bfe4c7f4829a0cfd46b30ab13b7c1390f5f6a4b175f9137333d88d75e09fc12cf1970ea950d022a2f8f4c4f5d3848b40a61491456c2adf7f6b5baa76b727ac

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\1St52ga2.exe

Filesize
188KB

MD5
425e2a994509280a8c1e2812dfaad929

SHA1
4d5eff2fb3835b761e2516a873b537cbaacea1fe

SHA256
6f40f29ad16466785dfbe836dd375400949ff894e8aa03e2805ab1c1ac2d6f5a

SHA512
080a41e7926122e14b38901f2e1eb8100a08c5068a9a74099f060c5e601f056a66e607b4e006820276834bb01d913a3894de98e6d9ba62ce843df14058483aa0

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\2sE7031.exe

Filesize
295KB

MD5
a9fd9dd03d22c28426e283a9a4dfdd09

SHA1
2d7c2a83a8849f6c3311abfee6cd55da51453ea5

SHA256
9bc1507b60ecdb26d8f09322403e6cfd7ca34d789ba7a7360c10715d497c3406

SHA512
e939d29724848b3c7a764583676ee36199b9137c789f1512f62626d473f38d77110e4211568d13cd3b5268807b3bc810e1bd32275d8b22f053a1c23849cf7357

Download Submit
memory/980-36-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2148-44-0x00000000075F0000-0x0000000007602000-memory.dmp

Filesize
72KB

Download
memory/2148-43-0x0000000007F70000-0x000000000807A000-memory.dmp

Filesize
1.0MB

Download
memory/2148-42-0x0000000008590000-0x0000000008BA8000-memory.dmp

Filesize
6.1MB

Download
memory/2148-41-0x0000000004A90000-0x0000000004A9A000-memory.dmp

Filesize
40KB

Download
memory/2148-40-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2148-45-0x00000000077C0000-0x00000000077FC000-memory.dmp

Filesize
240KB

Download
memory/2148-46-0x0000000007620000-0x000000000766C000-memory.dmp

Filesize
304KB

Download
memory/3140-23-0x0000000002160000-0x000000000217E000-memory.dmp

Filesize
120KB

Download
memory/3140-24-0x00000000050A0000-0x0000000005132000-memory.dmp

Filesize
584KB

Download
memory/3140-22-0x00000000049B0000-0x0000000004F54000-memory.dmp

Filesize
5.6MB

Download
memory/3140-21-0x00000000020D0000-0x00000000020F0000-memory.dmp

Filesize
128KB

Download
memory/4756-30-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4756-32-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4756-29-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads