mystic | 3c91163ea40ad7e35bac48ded16235cfe9003c914f570e27b4e2d7b3c9c46c05

Analysis

max time kernel
149s
max time network
153s
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 18:29

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General

Target

dbb1ff59d840e7c26ff269e10bbf5db72a563c700290b01fb63fd7d24ef302b8.exe
Size

590KB
MD5

e7d79324c286301169d5968e9ef79625
SHA1

84831fde7b54a23b71c60bf6ce158fe1d95e85ec
SHA256

dbb1ff59d840e7c26ff269e10bbf5db72a563c700290b01fb63fd7d24ef302b8
SHA512

6e2ce2657227127e5476f735de465156c087d087847f4417f3af1aaa14a0b8d7ade1b61f5f8559c42bedc0fdb4beee4a839e712ff86d1726d7b0bd6b3a16cb85
SSDEEP

12288:PMrty90JdraPKejQkiikLIWIDmG2s3TamlIn:iyYraP/YIWuN2Yauq

Score

10^/10

mystic redline gigant infostealer persistence stealer

Malware Config

Extracted

Family

redline

Botnet

gigant

77.91.124.55:19071

Signatures

Detect Mystic stealer payload 4 IoCs

Processes:

resource	yara_rule
behavioral18/memory/4600-14-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral18/memory/4600-18-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral18/memory/4600-15-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral18/memory/4600-17-0x0000000000400000-0x0000000000428000-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\2ey145iQ.exe	family_redline
behavioral18/memory/3584-22-0x0000000000E10000-0x0000000000E4E000-memory.dmp	family_redline

Executes dropped EXE 3 IoCs

Processes:

TS4XU9KH.exe1Ix03tL5.exe2ey145iQ.exe

pid process

5064 TS4XU9KH.exe
3352 1Ix03tL5.exe
3584 2ey145iQ.exe

pid	process
5064	TS4XU9KH.exe
3352	1Ix03tL5.exe
3584	2ey145iQ.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

dbb1ff59d840e7c26ff269e10bbf5db72a563c700290b01fb63fd7d24ef302b8.exeTS4XU9KH.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\\\""	dbb1ff59d840e7c26ff269e10bbf5db72a563c700290b01fb63fd7d24ef302b8.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\\\""	TS4XU9KH.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

1Ix03tL5.exe

description pid process target process

PID 3352 set thread context of 4600 3352 1Ix03tL5.exe AppLaunch.exe
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

2100 3352 WerFault.exe 1Ix03tL5.exe
4940 4600 WerFault.exe AppLaunch.exe

description	pid	process	target process
PID 3352 set thread context of 4600	3352	1Ix03tL5.exe	AppLaunch.exe

pid	pid_target	process	target process
2100	3352	WerFault.exe	1Ix03tL5.exe
4940	4600	WerFault.exe	AppLaunch.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

dbb1ff59d840e7c26ff269e10bbf5db72a563c700290b01fb63fd7d24ef302b8.exeTS4XU9KH.exe1Ix03tL5.exe

description	pid	process	target process
PID 1128 wrote to memory of 5064	1128	dbb1ff59d840e7c26ff269e10bbf5db72a563c700290b01fb63fd7d24ef302b8.exe	TS4XU9KH.exe
PID 1128 wrote to memory of 5064	1128	dbb1ff59d840e7c26ff269e10bbf5db72a563c700290b01fb63fd7d24ef302b8.exe	TS4XU9KH.exe
PID 1128 wrote to memory of 5064	1128	dbb1ff59d840e7c26ff269e10bbf5db72a563c700290b01fb63fd7d24ef302b8.exe	TS4XU9KH.exe
PID 5064 wrote to memory of 3352	5064	TS4XU9KH.exe	1Ix03tL5.exe
PID 5064 wrote to memory of 3352	5064	TS4XU9KH.exe	1Ix03tL5.exe
PID 5064 wrote to memory of 3352	5064	TS4XU9KH.exe	1Ix03tL5.exe
PID 3352 wrote to memory of 1732	3352	1Ix03tL5.exe	AppLaunch.exe
PID 3352 wrote to memory of 1732	3352	1Ix03tL5.exe	AppLaunch.exe
PID 3352 wrote to memory of 1732	3352	1Ix03tL5.exe	AppLaunch.exe
PID 3352 wrote to memory of 4600	3352	1Ix03tL5.exe	AppLaunch.exe
PID 3352 wrote to memory of 4600	3352	1Ix03tL5.exe	AppLaunch.exe
PID 3352 wrote to memory of 4600	3352	1Ix03tL5.exe	AppLaunch.exe
PID 3352 wrote to memory of 4600	3352	1Ix03tL5.exe	AppLaunch.exe
PID 3352 wrote to memory of 4600	3352	1Ix03tL5.exe	AppLaunch.exe
PID 3352 wrote to memory of 4600	3352	1Ix03tL5.exe	AppLaunch.exe
PID 3352 wrote to memory of 4600	3352	1Ix03tL5.exe	AppLaunch.exe
PID 3352 wrote to memory of 4600	3352	1Ix03tL5.exe	AppLaunch.exe
PID 3352 wrote to memory of 4600	3352	1Ix03tL5.exe	AppLaunch.exe
PID 3352 wrote to memory of 4600	3352	1Ix03tL5.exe	AppLaunch.exe
PID 5064 wrote to memory of 3584	5064	TS4XU9KH.exe	2ey145iQ.exe
PID 5064 wrote to memory of 3584	5064	TS4XU9KH.exe	2ey145iQ.exe
PID 5064 wrote to memory of 3584	5064	TS4XU9KH.exe	2ey145iQ.exe

C:\Users\Admin\AppData\Local\Temp\dbb1ff59d840e7c26ff269e10bbf5db72a563c700290b01fb63fd7d24ef302b8.exe
"C:\Users\Admin\AppData\Local\Temp\dbb1ff59d840e7c26ff269e10bbf5db72a563c700290b01fb63fd7d24ef302b8.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1128
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\TS4XU9KH.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\TS4XU9KH.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:5064
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Ix03tL5.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Ix03tL5.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:3352
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:1732
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:4600
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4600 -s 184
        5⤵
        Program crash
        
        PID:4940
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3352 -s 156
      4⤵
      Program crash
      PID:2100
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2ey145iQ.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2ey145iQ.exe
    3⤵
    - Executes dropped EXE
    PID:3584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4600 -ip 4600
1⤵
PID:1176

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3352 -ip 3352
1⤵
PID:4056

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\TS4XU9KH.exe

Filesize
417KB

MD5
4dbefc9cbca45c11fe487bba676c75bc

SHA1
9ab79f8914821368626498a6377efeabd6a30974

SHA256
a686058fef91331af7be47ca59bb170825b171171d74ecc6c3841364c8ed31e7

SHA512
b727ddc72c1215dc23441ed41584d13c83b97c742b59a10be2c4b681ef25b1ceb3ca048f2ff6863e951bcc2ddf2ae15329999cf687e9ca4d9f06423e86cce23b

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Ix03tL5.exe

Filesize
378KB

MD5
2ea7a6e0c2bc8807456f5361465aa218

SHA1
c55ba35cb779b3de159f1a16a9e65e8cd876bb94

SHA256
7a310a010ac8fef0116acf3209f4c52d22f2a6aae994e9cd2e709b42df27e0f5

SHA512
bbf62dde0a3f2d135dc40601bbcd6b2d0b51741ae7b9ddeaa665ba74f66250fedb106c3cf56c3920a80d0288c8c3713e5dd684da18d016478586d6caedb166b7

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2ey145iQ.exe

Filesize
231KB

MD5
3fcb8402344765c03c2499c3af22f61f

SHA1
59109bce61d57d84188be59352bed0d26f76d9e5

SHA256
c980d2068f5aa2376b392f0a1ecdf4531f3656946e4eacaf8a13e5ee98dfdeff

SHA512
154240187aa0f2edd256ba9a8e30830a7b80c89ccd6e76231e93510c106c35921f2b69511647f10f3a079cd9e717faee3e9ae6972c99f83f6e9e516d790e9c73

Download Submit
memory/3584-27-0x0000000008030000-0x000000000813A000-memory.dmp

Filesize
1.0MB

Download
memory/3584-22-0x0000000000E10000-0x0000000000E4E000-memory.dmp

Filesize
248KB

Download
memory/3584-23-0x0000000008180000-0x0000000008724000-memory.dmp

Filesize
5.6MB

Download
memory/3584-24-0x0000000007CD0000-0x0000000007D62000-memory.dmp

Filesize
584KB

Download
memory/3584-25-0x0000000003270000-0x000000000327A000-memory.dmp

Filesize
40KB

Download
memory/3584-26-0x0000000008D50000-0x0000000009368000-memory.dmp

Filesize
6.1MB

Download
memory/3584-28-0x0000000007F20000-0x0000000007F32000-memory.dmp

Filesize
72KB

Download
memory/3584-29-0x0000000007F80000-0x0000000007FBC000-memory.dmp

Filesize
240KB

Download
memory/3584-30-0x0000000007FC0000-0x000000000800C000-memory.dmp

Filesize
304KB

Download
memory/4600-15-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4600-17-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4600-18-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4600-14-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download