mystic | 4ce71244da4dd5d9b0b7535c6b62aebf516adc87a36195170af93efa3a630b9f

Analysis

max time kernel
145s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
23-05-2024 16:40

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General

Target

7cc399690625fe51c1b469f7e049782a493baa3a1ef701d932c57888bd5d237e.exe
Size

640KB
MD5

45232eeafc041f4392d43ff89aa99465
SHA1

1ed7227336f31558c8c6b1be8c5a50bde622ad36
SHA256

7cc399690625fe51c1b469f7e049782a493baa3a1ef701d932c57888bd5d237e
SHA512

35873d313709d05b382afc8659f54b6631388cbc1e5b9b1c65eeec961c396fbb9afa6c8f1a429c1f217d96ea042a6bb67c74aa18e49eeedc3b09360c3d21af91
SSDEEP

12288:oMrUy90Mxu2w9HDNHaPLLPNvbGB8IAxwhTNc9XeX9:MyXMx6PLLPNjGB8vYTNrN

Score

10^/10

mystic redline lutyr infostealer persistence stealer

Malware Config

Extracted

Family

redline

Botnet

lutyr

77.91.124.55:19071

Signatures

Detect Mystic stealer payload 4 IoCs

Processes:

resource	yara_rule
behavioral15/memory/3268-14-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral15/memory/3268-18-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral15/memory/3268-16-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral15/memory/3268-15-0x0000000000400000-0x0000000000433000-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 2 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2un039lc.exe	family_redline
behavioral15/memory/1724-22-0x0000000000810000-0x000000000084E000-memory.dmp	family_redline

Executes dropped EXE 3 IoCs

Processes:

Wj2kr2vj.exe1nm54nt8.exe2un039lc.exe

pid process

3328 Wj2kr2vj.exe
404 1nm54nt8.exe
1724 2un039lc.exe

pid	process
3328	Wj2kr2vj.exe
404	1nm54nt8.exe
1724	2un039lc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Wj2kr2vj.exe7cc399690625fe51c1b469f7e049782a493baa3a1ef701d932c57888bd5d237e.exe

description	ioc	process
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\\\""	Wj2kr2vj.exe
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\\\""	7cc399690625fe51c1b469f7e049782a493baa3a1ef701d932c57888bd5d237e.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

1nm54nt8.exe

description pid process target process

PID 404 set thread context of 3268 404 1nm54nt8.exe AppLaunch.exe
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

4908 3268 WerFault.exe AppLaunch.exe
4948 404 WerFault.exe 1nm54nt8.exe

description	pid	process	target process
PID 404 set thread context of 3268	404	1nm54nt8.exe	AppLaunch.exe

pid	pid_target	process	target process
4908	3268	WerFault.exe	AppLaunch.exe
4948	404	WerFault.exe	1nm54nt8.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

7cc399690625fe51c1b469f7e049782a493baa3a1ef701d932c57888bd5d237e.exeWj2kr2vj.exe1nm54nt8.exe

description	pid	process	target process
PID 2424 wrote to memory of 3328	2424	7cc399690625fe51c1b469f7e049782a493baa3a1ef701d932c57888bd5d237e.exe	Wj2kr2vj.exe
PID 2424 wrote to memory of 3328	2424	7cc399690625fe51c1b469f7e049782a493baa3a1ef701d932c57888bd5d237e.exe	Wj2kr2vj.exe
PID 2424 wrote to memory of 3328	2424	7cc399690625fe51c1b469f7e049782a493baa3a1ef701d932c57888bd5d237e.exe	Wj2kr2vj.exe
PID 3328 wrote to memory of 404	3328	Wj2kr2vj.exe	1nm54nt8.exe
PID 3328 wrote to memory of 404	3328	Wj2kr2vj.exe	1nm54nt8.exe
PID 3328 wrote to memory of 404	3328	Wj2kr2vj.exe	1nm54nt8.exe
PID 404 wrote to memory of 4280	404	1nm54nt8.exe	AppLaunch.exe
PID 404 wrote to memory of 4280	404	1nm54nt8.exe	AppLaunch.exe
PID 404 wrote to memory of 4280	404	1nm54nt8.exe	AppLaunch.exe
PID 404 wrote to memory of 2108	404	1nm54nt8.exe	AppLaunch.exe
PID 404 wrote to memory of 2108	404	1nm54nt8.exe	AppLaunch.exe
PID 404 wrote to memory of 2108	404	1nm54nt8.exe	AppLaunch.exe
PID 404 wrote to memory of 3268	404	1nm54nt8.exe	AppLaunch.exe
PID 404 wrote to memory of 3268	404	1nm54nt8.exe	AppLaunch.exe
PID 404 wrote to memory of 3268	404	1nm54nt8.exe	AppLaunch.exe
PID 404 wrote to memory of 3268	404	1nm54nt8.exe	AppLaunch.exe
PID 404 wrote to memory of 3268	404	1nm54nt8.exe	AppLaunch.exe
PID 404 wrote to memory of 3268	404	1nm54nt8.exe	AppLaunch.exe
PID 404 wrote to memory of 3268	404	1nm54nt8.exe	AppLaunch.exe
PID 404 wrote to memory of 3268	404	1nm54nt8.exe	AppLaunch.exe
PID 404 wrote to memory of 3268	404	1nm54nt8.exe	AppLaunch.exe
PID 404 wrote to memory of 3268	404	1nm54nt8.exe	AppLaunch.exe
PID 3328 wrote to memory of 1724	3328	Wj2kr2vj.exe	2un039lc.exe
PID 3328 wrote to memory of 1724	3328	Wj2kr2vj.exe	2un039lc.exe
PID 3328 wrote to memory of 1724	3328	Wj2kr2vj.exe	2un039lc.exe

C:\Users\Admin\AppData\Local\Temp\7cc399690625fe51c1b469f7e049782a493baa3a1ef701d932c57888bd5d237e.exe
"C:\Users\Admin\AppData\Local\Temp\7cc399690625fe51c1b469f7e049782a493baa3a1ef701d932c57888bd5d237e.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2424
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Wj2kr2vj.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Wj2kr2vj.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:3328
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1nm54nt8.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1nm54nt8.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:404
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:4280
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:2108
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:3268
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3268 -s 540
        5⤵
        Program crash
        
        PID:4908
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 404 -s 624
      4⤵
      Program crash
      PID:4948
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2un039lc.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2un039lc.exe
    3⤵
    - Executes dropped EXE
    PID:1724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 404 -ip 404
1⤵
PID:4900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3268 -ip 3268
1⤵
PID:1368

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\Wj2kr2vj.exe

Filesize
444KB

MD5
636a9df2e421e343ce95dd422947e9a7

SHA1
f934f3db17070f1ebbde16b238270ad961816af5

SHA256
1ea5ebb242a1a9dfe4eedc3d16d65d66aca05febc7c1dfbb81c65e3edaaddfed

SHA512
cded219c5dbc0f790ca94c8c4aecf948c9a0f1e2e5a8c975fee5ec08dfd7cf24de084ba0f78ac5fbf3a21c46ec9676f13f8ceebe2007397615e60288d021b780

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1nm54nt8.exe

Filesize
423KB

MD5
f495032b690e17b37956a2a5b8d4c556

SHA1
97409a7b3e89336c0d68d8fa4e459a0e81d9dc38

SHA256
7bb120577c0c26dafbc1a1cd08f88cee65bd35365a81090a61d7f6185b064c61

SHA512
bef64a261fa24c6c5af5816ebb8549d3f404df55271ff03347be4772f9d940940bbd3b0cbec01caa41ded78422a60381fea8cd8434eabdc3c36e3889b3a180d6

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2un039lc.exe

Filesize
221KB

MD5
7175a8376d238e9f3ea71ccbdb176182

SHA1
2ce5f9c75e5829587c9a0ff3a78ce9f695787699

SHA256
2a0f850c6325fe494da648a4b15c9eb8c5217e1637a346eb763e8cd27e7c24f7

SHA512
be51366af44b47fc50336f4aae339c25c5e8e3d5a90867569112c198a7fc16688207b02cfa99764296928f6b82acebf9417805944ffb63b559d7fec169ad42f5

Download Submit
memory/1724-27-0x0000000007950000-0x0000000007A5A000-memory.dmp

Filesize
1.0MB

Download
memory/1724-22-0x0000000000810000-0x000000000084E000-memory.dmp

Filesize
248KB

Download
memory/1724-23-0x0000000007AA0000-0x0000000008044000-memory.dmp

Filesize
5.6MB

Download
memory/1724-24-0x00000000075D0000-0x0000000007662000-memory.dmp

Filesize
584KB

Download
memory/1724-25-0x0000000002B60000-0x0000000002B6A000-memory.dmp

Filesize
40KB

Download
memory/1724-26-0x0000000008670000-0x0000000008C88000-memory.dmp

Filesize
6.1MB

Download
memory/1724-28-0x00000000077B0000-0x00000000077C2000-memory.dmp

Filesize
72KB

Download
memory/1724-29-0x0000000007840000-0x000000000787C000-memory.dmp

Filesize
240KB

Download
memory/1724-30-0x0000000007880000-0x00000000078CC000-memory.dmp

Filesize
304KB

Download
memory/3268-16-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/3268-15-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/3268-18-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/3268-14-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download