mystic | 8f7ecfcea350d8e91e6bb9083833f37b57aa78d15022b68c407055e2463bd982

Analysis

max time kernel
135s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 19:12

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General

Target

7284e9e031d95f98bb1c673f3691adb26e5acc31e6d2c745b85bc97fc82edec7.exe
Size

758KB
MD5

ea8d2762441d6ff25ed7f3e5746d96e0
SHA1

67555a05119607f47186e794df375f87a76c373c
SHA256

7284e9e031d95f98bb1c673f3691adb26e5acc31e6d2c745b85bc97fc82edec7
SHA512

cca9ea5cf244c143207e9dd380540128bdfe0850c6c600002e8342ccfb3a17c75ab5db65d11a0b8668e487e8f4ba23223a367d7f795c71ff5ca109911e60f770
SSDEEP

12288:qMrNy90uQ9hUgNP4b17YufW1irR4VsEKytcWybQ621Q4eJbmQT6S:nyeXtNgbZ41+Rmc0cWOQ6n4ebm4

Score

10^/10

mystic redline kolyan infostealer persistence stealer

Malware Config

Extracted

Family

redline

Botnet

kolyan

77.91.124.82:19071

Signatures

Detect Mystic stealer payload 4 IoCs

Processes:

resource	yara_rule
behavioral8/memory/4040-14-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral8/memory/4040-16-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral8/memory/4040-19-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral8/memory/4040-17-0x0000000000400000-0x0000000000432000-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 2 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2wf538CS.exe	family_redline
behavioral8/memory/1592-22-0x0000000000B10000-0x0000000000B4E000-memory.dmp	family_redline

Executes dropped EXE 3 IoCs

Processes:

cX8Tf9ZP.exe1ht71Cx8.exe2wf538CS.exe

pid process

4272 cX8Tf9ZP.exe
3656 1ht71Cx8.exe
1592 2wf538CS.exe

pid	process
4272	cX8Tf9ZP.exe
3656	1ht71Cx8.exe
1592	2wf538CS.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

7284e9e031d95f98bb1c673f3691adb26e5acc31e6d2c745b85bc97fc82edec7.execX8Tf9ZP.exe

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\\\""	7284e9e031d95f98bb1c673f3691adb26e5acc31e6d2c745b85bc97fc82edec7.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\\\""	cX8Tf9ZP.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

1ht71Cx8.exe

description pid process target process

PID 3656 set thread context of 4040 3656 1ht71Cx8.exe AppLaunch.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3968 4040 WerFault.exe AppLaunch.exe

description	pid	process	target process
PID 3656 set thread context of 4040	3656	1ht71Cx8.exe	AppLaunch.exe

pid	pid_target	process	target process
3968	4040	WerFault.exe	AppLaunch.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

7284e9e031d95f98bb1c673f3691adb26e5acc31e6d2c745b85bc97fc82edec7.execX8Tf9ZP.exe1ht71Cx8.exe

description	pid	process	target process
PID 1960 wrote to memory of 4272	1960	7284e9e031d95f98bb1c673f3691adb26e5acc31e6d2c745b85bc97fc82edec7.exe	cX8Tf9ZP.exe
PID 1960 wrote to memory of 4272	1960	7284e9e031d95f98bb1c673f3691adb26e5acc31e6d2c745b85bc97fc82edec7.exe	cX8Tf9ZP.exe
PID 1960 wrote to memory of 4272	1960	7284e9e031d95f98bb1c673f3691adb26e5acc31e6d2c745b85bc97fc82edec7.exe	cX8Tf9ZP.exe
PID 4272 wrote to memory of 3656	4272	cX8Tf9ZP.exe	1ht71Cx8.exe
PID 4272 wrote to memory of 3656	4272	cX8Tf9ZP.exe	1ht71Cx8.exe
PID 4272 wrote to memory of 3656	4272	cX8Tf9ZP.exe	1ht71Cx8.exe
PID 3656 wrote to memory of 4040	3656	1ht71Cx8.exe	AppLaunch.exe
PID 3656 wrote to memory of 4040	3656	1ht71Cx8.exe	AppLaunch.exe
PID 3656 wrote to memory of 4040	3656	1ht71Cx8.exe	AppLaunch.exe
PID 3656 wrote to memory of 4040	3656	1ht71Cx8.exe	AppLaunch.exe
PID 3656 wrote to memory of 4040	3656	1ht71Cx8.exe	AppLaunch.exe
PID 3656 wrote to memory of 4040	3656	1ht71Cx8.exe	AppLaunch.exe
PID 3656 wrote to memory of 4040	3656	1ht71Cx8.exe	AppLaunch.exe
PID 3656 wrote to memory of 4040	3656	1ht71Cx8.exe	AppLaunch.exe
PID 3656 wrote to memory of 4040	3656	1ht71Cx8.exe	AppLaunch.exe
PID 3656 wrote to memory of 4040	3656	1ht71Cx8.exe	AppLaunch.exe
PID 4272 wrote to memory of 1592	4272	cX8Tf9ZP.exe	2wf538CS.exe
PID 4272 wrote to memory of 1592	4272	cX8Tf9ZP.exe	2wf538CS.exe
PID 4272 wrote to memory of 1592	4272	cX8Tf9ZP.exe	2wf538CS.exe

C:\Users\Admin\AppData\Local\Temp\7284e9e031d95f98bb1c673f3691adb26e5acc31e6d2c745b85bc97fc82edec7.exe
"C:\Users\Admin\AppData\Local\Temp\7284e9e031d95f98bb1c673f3691adb26e5acc31e6d2c745b85bc97fc82edec7.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1960

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\cX8Tf9ZP.exe
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\cX8Tf9ZP.exe
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4272

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1ht71Cx8.exe
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1ht71Cx8.exe
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3656

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
4⤵
PID:4040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 184
5⤵
- Program crash
PID:3968

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2wf538CS.exe
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2wf538CS.exe
3⤵
- Executes dropped EXE
PID:1592

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4040 -ip 4040
1⤵
PID:2692

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\cX8Tf9ZP.exe
Filesize
562KB

MD5
de62e3142bc60a45a220647a92938665

SHA1
555a2c409b672462fc0e28ce377b2beb9cf3be36

SHA256
ac4fc256b69527b2a5c49a3b5d9a0500f34b3a5111674e69ab39d6d9bb68db93

SHA512
c69b337b6991a1bc68e300154343da4fa37b78dc7fdc8f546ed56e098b4a5e884c03a5f565d6916716fa7d29eed6b549d1bc78937580f43e6c27ea57fd42986f

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1ht71Cx8.exe
Filesize
1.1MB

MD5
0d4640a59779a09221da0092391289b8

SHA1
962c4ef58c87a8d0bd2dedc6cf0e7de0b1faa5c5

SHA256
765e2bdbd4ddd9ef6a4a86919d3302c9062e1144f8ed9f365bfc47d2787bf719

SHA512
890c8829fdeba0b3f90a511cb0df7f5d1768fbedf7c42d99fad3d52289a4556861d01aba0b7209f53298f355d7007b835312b3cc8a6dd78224b8cc15d5c72afe

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2wf538CS.exe
Filesize
221KB

MD5
cffa435611cbf68dde5d4fd4f12f3f78

SHA1
9b24d82ef0324191554f54370ca4a3f2d8c2be12

SHA256
49153fcd151a24b6f0f8613b4ea00b6beb7cd25cbea0c892bf410fac9b4de4ea

SHA512
bf2b3b7afd3c347b513d24d6d8869375fd47a0cc178ee5466f17068292d913309ba6c1d8aa3f5b738bb5fcde91e48513f2cdf1e5a6b9ea9822d55a7c3a213681

Download Submit
memory/1592-27-0x0000000007BD0000-0x0000000007CDA000-memory.dmp

Filesize
1.0MB

Download
memory/1592-22-0x0000000000B10000-0x0000000000B4E000-memory.dmp

Filesize
248KB

Download
memory/1592-23-0x0000000007DF0000-0x0000000008394000-memory.dmp

Filesize
5.6MB

Download
memory/1592-24-0x00000000078E0000-0x0000000007972000-memory.dmp

Filesize
584KB

Download
memory/1592-25-0x0000000004E90000-0x0000000004E9A000-memory.dmp

Filesize
40KB

Download
memory/1592-26-0x00000000089C0000-0x0000000008FD8000-memory.dmp

Filesize
6.1MB

Download
memory/1592-28-0x0000000007AE0000-0x0000000007AF2000-memory.dmp

Filesize
72KB

Download
memory/1592-29-0x0000000007B40000-0x0000000007B7C000-memory.dmp

Filesize
240KB

Download
memory/1592-30-0x0000000007B80000-0x0000000007BCC000-memory.dmp

Filesize
304KB

Download
memory/4040-19-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4040-16-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4040-17-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4040-14-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download