mystic | eafc2bfbeaeddb89f86da75f29f14435b745b919f0b99dd1d0d30b9d33efb415

Analysis

max time kernel
143s
max time network
147s
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, 07:44

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General

Target

a9a24c6b40b53ea0f85263a4222bf4792c43b7f26287058d9cd536b2ceb5a779.exe
Size

382KB
MD5

0323fee9778c98fb771fe21c7d5116a2
SHA1

4e6500f6d9afff1e52210ffcf666803edb74b95d
SHA256

a9a24c6b40b53ea0f85263a4222bf4792c43b7f26287058d9cd536b2ceb5a779
SHA512

fab3cd9c2582c9b79b70a4b1feaf57f154276d72b5d52e84d7816028b25edfb8f16d64c409a19535b48e81cf4d78434eaba96250173e8443814f7a124f330ee1
SSDEEP

6144:Kuy+bnr+Lp0yN90QE0FiOOECN5X7O/NunK4TiQnmLtx9lK7PT5mgn:iMr7y906OF5X7OAKRQnmJx9lKzT5mU

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

resource	yara_rule
behavioral14/memory/4040-7-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral14/memory/4040-9-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral14/memory/4040-11-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral14/memory/4040-8-0x0000000000400000-0x0000000000432000-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

resource	yara_rule
behavioral14/files/0x0007000000023406-13.dat	family_redline
behavioral14/memory/2716-16-0x0000000000AA0000-0x0000000000ADE000-memory.dmp	family_redline

Executes dropped EXE 2 IoCs

pid	Process
1656	1Bg41iK5.exe
2716	2Uf769bs.exe

Adds Run key to start application 2 TTPs 1 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\\\""	a9a24c6b40b53ea0f85263a4222bf4792c43b7f26287058d9cd536b2ceb5a779.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1656 set thread context of 4040	1656	1Bg41iK5.exe	84

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2132	4040	WerFault.exe	84
3628	1656	WerFault.exe	82

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1340 wrote to memory of 1656	1340	a9a24c6b40b53ea0f85263a4222bf4792c43b7f26287058d9cd536b2ceb5a779.exe	82
PID 1340 wrote to memory of 1656	1340	a9a24c6b40b53ea0f85263a4222bf4792c43b7f26287058d9cd536b2ceb5a779.exe	82
PID 1340 wrote to memory of 1656	1340	a9a24c6b40b53ea0f85263a4222bf4792c43b7f26287058d9cd536b2ceb5a779.exe	82
PID 1656 wrote to memory of 4040	1656	1Bg41iK5.exe	84
PID 1656 wrote to memory of 4040	1656	1Bg41iK5.exe	84
PID 1656 wrote to memory of 4040	1656	1Bg41iK5.exe	84
PID 1656 wrote to memory of 4040	1656	1Bg41iK5.exe	84
PID 1656 wrote to memory of 4040	1656	1Bg41iK5.exe	84
PID 1656 wrote to memory of 4040	1656	1Bg41iK5.exe	84
PID 1656 wrote to memory of 4040	1656	1Bg41iK5.exe	84
PID 1656 wrote to memory of 4040	1656	1Bg41iK5.exe	84
PID 1656 wrote to memory of 4040	1656	1Bg41iK5.exe	84
PID 1656 wrote to memory of 4040	1656	1Bg41iK5.exe	84
PID 1340 wrote to memory of 2716	1340	a9a24c6b40b53ea0f85263a4222bf4792c43b7f26287058d9cd536b2ceb5a779.exe	93
PID 1340 wrote to memory of 2716	1340	a9a24c6b40b53ea0f85263a4222bf4792c43b7f26287058d9cd536b2ceb5a779.exe	93
PID 1340 wrote to memory of 2716	1340	a9a24c6b40b53ea0f85263a4222bf4792c43b7f26287058d9cd536b2ceb5a779.exe	93

C:\Users\Admin\AppData\Local\Temp\a9a24c6b40b53ea0f85263a4222bf4792c43b7f26287058d9cd536b2ceb5a779.exe
"C:\Users\Admin\AppData\Local\Temp\a9a24c6b40b53ea0f85263a4222bf4792c43b7f26287058d9cd536b2ceb5a779.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1340
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1Bg41iK5.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1Bg41iK5.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1656
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:4040
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 540
      4⤵
      Program crash
      PID:2132
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 148
    3⤵
    - Program crash
    PID:3628
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2Uf769bs.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2Uf769bs.exe
  2⤵
  - Executes dropped EXE
  PID:2716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4040 -ip 4040
1⤵
PID:588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1656 -ip 1656
1⤵
PID:1524

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\1Bg41iK5.exe

Filesize
295KB

MD5
cc8ccad038c4e93cfe60624963f058e7

SHA1
6219f54e6f64a95dace0ecbd9a244b8cbb51c49c

SHA256
b8bbc14b448c298dfcd60bff896c5df2f0b66af2a16b9cea885a49f84893341b

SHA512
105b5043bcb2b58107dc2a997d7ada408685ca06735319779b52ce0601504f7306d5922439ed7ac112b44067dd50634ab18b074a5b1b292d803d3a5fbf11f7f0

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2Uf769bs.exe

Filesize
222KB

MD5
459898035635deaa9614ceb763496efa

SHA1
49f36d6c8929c8b49ab73a0675794191d4ad6522

SHA256
61d26d994f8da8bef1cb845cc768606d28bb5002421ebbbf4c55dc6739d83e7f

SHA512
34e16dff82f08da141a007ce5fbadea42782bcdc25f483995443801d5c3bb8a614d7c84fa5c290764489a30a4886bf331b6b854812ec06984a1fa3e68a3c3845

Download Submit
memory/2716-21-0x0000000008A20000-0x0000000009038000-memory.dmp

Filesize
6.1MB

Download
memory/2716-20-0x00000000748D0000-0x0000000075080000-memory.dmp

Filesize
7.7MB

Download
memory/2716-27-0x00000000748D0000-0x0000000075080000-memory.dmp

Filesize
7.7MB

Download
memory/2716-26-0x00000000748DE000-0x00000000748DF000-memory.dmp

Filesize
4KB

Download
memory/2716-15-0x00000000748DE000-0x00000000748DF000-memory.dmp

Filesize
4KB

Download
memory/2716-16-0x0000000000AA0000-0x0000000000ADE000-memory.dmp

Filesize
248KB

Download
memory/2716-17-0x0000000007E50000-0x00000000083F4000-memory.dmp

Filesize
5.6MB

Download
memory/2716-18-0x00000000079A0000-0x0000000007A32000-memory.dmp

Filesize
584KB

Download
memory/2716-19-0x0000000004F10000-0x0000000004F1A000-memory.dmp

Filesize
40KB

Download
memory/2716-25-0x0000000007C40000-0x0000000007C8C000-memory.dmp

Filesize
304KB

Download
memory/2716-24-0x0000000007BF0000-0x0000000007C2C000-memory.dmp

Filesize
240KB

Download
memory/2716-22-0x0000000008400000-0x000000000850A000-memory.dmp

Filesize
1.0MB

Download
memory/2716-23-0x0000000007B90000-0x0000000007BA2000-memory.dmp

Filesize
72KB

Download
memory/4040-7-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4040-11-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4040-9-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4040-8-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads