mystic | 3767bd9b929fb47ae3b158c424044d32b3c87ffb6efc8eb109dc1df9f3d9b053

Analysis

max time kernel
146s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
24-05-2024 08:20

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General

Target

492e1a379a14cf5b3c974097a7f3e1ff73ed7af7cc48869e72473f84910744be.exe
Size

782KB
MD5

d78ee98c87c96e5b84c2af90acad9001
SHA1

794696b9fef9ef7913cd1b1e93740df7196a1ad9
SHA256

492e1a379a14cf5b3c974097a7f3e1ff73ed7af7cc48869e72473f84910744be
SHA512

c5411569c3c899c019d91939d1f7036828f11a09fa05bf2a5fa93620cced8b0dd895d70d2e515843cd9d6a4988a6abe782a072abb14ebd70282d29567ce44d01
SSDEEP

12288:vMrPy90d0ah8sdhVJaSKfq38qb8pJ+piGQplQkXEFm1+gzbK8yqBrWaeESFt:AyQ0aRZd4y8aHQDlEFm4gnK18QESb

Score

10^/10

mystic redline kukish infostealer persistence stealer

Malware Config

Extracted

Family

redline

Botnet

kukish

77.91.124.55:19071

Signatures

Detect Mystic stealer payload 4 IoCs

Processes:

resource	yara_rule
behavioral6/memory/928-14-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral6/memory/928-15-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral6/memory/928-18-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral6/memory/928-16-0x0000000000400000-0x0000000000432000-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\2ub095sE.exe	family_redline
behavioral6/memory/1912-22-0x0000000000790000-0x00000000007CE000-memory.dmp	family_redline

Executes dropped EXE 3 IoCs

Processes:

Nl8fw7hk.exe1WQ05TR3.exe2ub095sE.exe

pid process

1752 Nl8fw7hk.exe
2264 1WQ05TR3.exe
1912 2ub095sE.exe

pid	process
1752	Nl8fw7hk.exe
2264	1WQ05TR3.exe
1912	2ub095sE.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

492e1a379a14cf5b3c974097a7f3e1ff73ed7af7cc48869e72473f84910744be.exeNl8fw7hk.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\\\""	492e1a379a14cf5b3c974097a7f3e1ff73ed7af7cc48869e72473f84910744be.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\\\""	Nl8fw7hk.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

1WQ05TR3.exe

description pid process target process

PID 2264 set thread context of 928 2264 1WQ05TR3.exe AppLaunch.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4784 928 WerFault.exe AppLaunch.exe

description	pid	process	target process
PID 2264 set thread context of 928	2264	1WQ05TR3.exe	AppLaunch.exe

pid	pid_target	process	target process
4784	928	WerFault.exe	AppLaunch.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

492e1a379a14cf5b3c974097a7f3e1ff73ed7af7cc48869e72473f84910744be.exeNl8fw7hk.exe1WQ05TR3.exe

description	pid	process	target process
PID 2304 wrote to memory of 1752	2304	492e1a379a14cf5b3c974097a7f3e1ff73ed7af7cc48869e72473f84910744be.exe	Nl8fw7hk.exe
PID 2304 wrote to memory of 1752	2304	492e1a379a14cf5b3c974097a7f3e1ff73ed7af7cc48869e72473f84910744be.exe	Nl8fw7hk.exe
PID 2304 wrote to memory of 1752	2304	492e1a379a14cf5b3c974097a7f3e1ff73ed7af7cc48869e72473f84910744be.exe	Nl8fw7hk.exe
PID 1752 wrote to memory of 2264	1752	Nl8fw7hk.exe	1WQ05TR3.exe
PID 1752 wrote to memory of 2264	1752	Nl8fw7hk.exe	1WQ05TR3.exe
PID 1752 wrote to memory of 2264	1752	Nl8fw7hk.exe	1WQ05TR3.exe
PID 2264 wrote to memory of 928	2264	1WQ05TR3.exe	AppLaunch.exe
PID 2264 wrote to memory of 928	2264	1WQ05TR3.exe	AppLaunch.exe
PID 2264 wrote to memory of 928	2264	1WQ05TR3.exe	AppLaunch.exe
PID 2264 wrote to memory of 928	2264	1WQ05TR3.exe	AppLaunch.exe
PID 2264 wrote to memory of 928	2264	1WQ05TR3.exe	AppLaunch.exe
PID 2264 wrote to memory of 928	2264	1WQ05TR3.exe	AppLaunch.exe
PID 2264 wrote to memory of 928	2264	1WQ05TR3.exe	AppLaunch.exe
PID 2264 wrote to memory of 928	2264	1WQ05TR3.exe	AppLaunch.exe
PID 2264 wrote to memory of 928	2264	1WQ05TR3.exe	AppLaunch.exe
PID 2264 wrote to memory of 928	2264	1WQ05TR3.exe	AppLaunch.exe
PID 1752 wrote to memory of 1912	1752	Nl8fw7hk.exe	2ub095sE.exe
PID 1752 wrote to memory of 1912	1752	Nl8fw7hk.exe	2ub095sE.exe
PID 1752 wrote to memory of 1912	1752	Nl8fw7hk.exe	2ub095sE.exe

C:\Users\Admin\AppData\Local\Temp\492e1a379a14cf5b3c974097a7f3e1ff73ed7af7cc48869e72473f84910744be.exe
"C:\Users\Admin\AppData\Local\Temp\492e1a379a14cf5b3c974097a7f3e1ff73ed7af7cc48869e72473f84910744be.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2304

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Nl8fw7hk.exe
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Nl8fw7hk.exe
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1752

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1WQ05TR3.exe
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1WQ05TR3.exe
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2264

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
4⤵
PID:928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 928 -s 540
5⤵
- Program crash
PID:4784

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2ub095sE.exe
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2ub095sE.exe
3⤵
- Executes dropped EXE
PID:1912

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 928 -ip 928
1⤵
PID:1360

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Nl8fw7hk.exe

Filesize
581KB

MD5
e88b6f739733d0331c9ff467a91b8ec3

SHA1
e644ef5890088973e48dabf0c7199c336f477aa9

SHA256
24d301af1f74495c987a7e9eb5b07a6808344ed4a1526be3847b86769e85b477

SHA512
58c80f5e00977a29708184fd6df08f54fab22b3a50e17ce8f26cf7f74af413e4a07185a3d34d37a66600aef8b7a4ae713c3f48c00cc3a4873ec568168ed9745d

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1WQ05TR3.exe

Filesize
1.1MB

MD5
6ef68ec5b2d91cbc9c66fa0553e527ec

SHA1
8d8ab02a5f2433cf12ba62336e4d774f2bbf21d2

SHA256
8ffa8c6bcf0b38b229ac57e8a8eacfad2d27bd2b6ec971af827609bfb919495f

SHA512
1a02ccdf3d1be279169bc25eb2a4452be337389b78050811ea4367ca624d5d169c7c7e157a73fe3be13378412e8d94606f41c157b5892cc76c4344ee85d204a6

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2ub095sE.exe

Filesize
222KB

MD5
b299b7021bb8acc959ff16dd6cc4d247

SHA1
b722d1a0ab22eec9fa19786c2aefdae058e29438

SHA256
ccae4199b2c44a673505d002232e5918ea50c35fb757041b849acb92e6bb0026

SHA512
72d8d4d8c6edd53b903b6ea00a45f9bd725a873a31ea939526ab94305829992f17ba6172ddafa9f2c3790560db6c4c55f2edf0095da781cb63fe9e318ae02f6e

Download Submit
memory/928-14-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/928-15-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/928-18-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/928-16-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1912-23-0x0000000007C30000-0x00000000081D4000-memory.dmp

Filesize
5.6MB

Download
memory/1912-22-0x0000000000790000-0x00000000007CE000-memory.dmp

Filesize
248KB

Download
memory/1912-24-0x0000000007720000-0x00000000077B2000-memory.dmp

Filesize
584KB

Download
memory/1912-25-0x0000000002AC0000-0x0000000002ACA000-memory.dmp

Filesize
40KB

Download
memory/1912-26-0x0000000008800000-0x0000000008E18000-memory.dmp

Filesize
6.1MB

Download
memory/1912-27-0x00000000081E0000-0x00000000082EA000-memory.dmp

Filesize
1.0MB

Download
memory/1912-28-0x00000000076E0000-0x00000000076F2000-memory.dmp

Filesize
72KB

Download
memory/1912-29-0x00000000078F0000-0x000000000792C000-memory.dmp

Filesize
240KB

Download
memory/1912-30-0x0000000007950000-0x000000000799C000-memory.dmp

Filesize
304KB

Download