mystic | bf2c1800bafcd4d5217d71b9a33e77bafb1cc22a70933514c4ff387c364c4487

Analysis

max time kernel
138s
max time network
163s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
17-11-2023 04:05

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General

Target

NEAS.b8ac09129e3ca9f02b622ffbcc2dbcc0.exe
Size

425KB
MD5

b8ac09129e3ca9f02b622ffbcc2dbcc0
SHA1

ddcde3a13e0c24edf98abc5e7b01fe92a630eac2
SHA256

bf2c1800bafcd4d5217d71b9a33e77bafb1cc22a70933514c4ff387c364c4487
SHA512

5af46b7cc5754de53db1086c6eafcd1c4db6ad3bb2b143118599cc4b814b440d95ac80308c9bf0fe38c98bfa28646d41d758e689dc39cf30b72f377e031d6aaa
SSDEEP

12288:AMrYy90nCI8MWCKcgeO9Cuvpt5oSWTbgS8n+pen:oyGCItKnNvpt5+O+c

Score

10^/10

mystic redline taiga infostealer persistence stealer

Malware Config

Extracted

Family

redline

Botnet

taiga

5.42.92.51:19057

Signatures

Detect Mystic stealer payload 4 IoCs

resource	yara_rule
behavioral1/memory/1640-15-0x0000000000400000-0x0000000000434000-memory.dmp	mystic_family
behavioral1/memory/1640-16-0x0000000000400000-0x0000000000434000-memory.dmp	mystic_family
behavioral1/memory/1640-17-0x0000000000400000-0x0000000000434000-memory.dmp	mystic_family
behavioral1/memory/1640-19-0x0000000000400000-0x0000000000434000-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 1 IoCs

resource	yara_rule
behavioral1/memory/4064-7-0x0000000000400000-0x000000000043C000-memory.dmp	family_redline

Executes dropped EXE 2 IoCs

pid	Process
1044	11yH4903.exe
708	12FD682.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\\\""	NEAS.b8ac09129e3ca9f02b622ffbcc2dbcc0.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1044 set thread context of 4064	1044	11yH4903.exe	101
PID 708 set thread context of 1640	708	12FD682.exe	104

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4872	1640	WerFault.exe	104
2880	1640	WerFault.exe	104

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 1044	2276	NEAS.b8ac09129e3ca9f02b622ffbcc2dbcc0.exe	86
PID 2276 wrote to memory of 1044	2276	NEAS.b8ac09129e3ca9f02b622ffbcc2dbcc0.exe	86
PID 2276 wrote to memory of 1044	2276	NEAS.b8ac09129e3ca9f02b622ffbcc2dbcc0.exe	86
PID 1044 wrote to memory of 2716	1044	11yH4903.exe	99
PID 1044 wrote to memory of 2716	1044	11yH4903.exe	99
PID 1044 wrote to memory of 2716	1044	11yH4903.exe	99
PID 1044 wrote to memory of 4064	1044	11yH4903.exe	101
PID 1044 wrote to memory of 4064	1044	11yH4903.exe	101
PID 1044 wrote to memory of 4064	1044	11yH4903.exe	101
PID 1044 wrote to memory of 4064	1044	11yH4903.exe	101
PID 1044 wrote to memory of 4064	1044	11yH4903.exe	101
PID 1044 wrote to memory of 4064	1044	11yH4903.exe	101
PID 1044 wrote to memory of 4064	1044	11yH4903.exe	101
PID 1044 wrote to memory of 4064	1044	11yH4903.exe	101
PID 2276 wrote to memory of 708	2276	NEAS.b8ac09129e3ca9f02b622ffbcc2dbcc0.exe	102
PID 2276 wrote to memory of 708	2276	NEAS.b8ac09129e3ca9f02b622ffbcc2dbcc0.exe	102
PID 2276 wrote to memory of 708	2276	NEAS.b8ac09129e3ca9f02b622ffbcc2dbcc0.exe	102
PID 708 wrote to memory of 1640	708	12FD682.exe	104
PID 708 wrote to memory of 1640	708	12FD682.exe	104
PID 708 wrote to memory of 1640	708	12FD682.exe	104
PID 708 wrote to memory of 1640	708	12FD682.exe	104
PID 708 wrote to memory of 1640	708	12FD682.exe	104
PID 708 wrote to memory of 1640	708	12FD682.exe	104
PID 708 wrote to memory of 1640	708	12FD682.exe	104
PID 708 wrote to memory of 1640	708	12FD682.exe	104
PID 708 wrote to memory of 1640	708	12FD682.exe	104
PID 708 wrote to memory of 1640	708	12FD682.exe	104
PID 1640 wrote to memory of 4872	1640	AppLaunch.exe	107
PID 1640 wrote to memory of 4872	1640	AppLaunch.exe	107
PID 1640 wrote to memory of 4872	1640	AppLaunch.exe	107

C:\Users\Admin\AppData\Local\Temp\NEAS.b8ac09129e3ca9f02b622ffbcc2dbcc0.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.b8ac09129e3ca9f02b622ffbcc2dbcc0.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\11yH4903.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\11yH4903.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1044
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:2716
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:4064
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\12FD682.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\12FD682.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:708
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1640
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1640 -s 548
      4⤵
      Program crash
      PID:4872
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1640 -s 548
      4⤵
      Program crash
      PID:2880

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1640 -ip 1640
1⤵
PID:3968

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\11yH4903.exe

Filesize
415KB

MD5
88d7dfb1a4a2438445ab9407368d83c8

SHA1
6190ba9a4c423413a39b88b79cd2f5c7727d702e

SHA256
65fc6215e253a16bbb2d2077525cb4caa36ac1ff4d8820d4518c16ab288c7bca

SHA512
1973515b5107a5c96f2f720f6c3917cf862d803af5635def78f219ee4b502c8b3514e41026274567ce8b2da50e6c668fa34fd6f25078bebfe8bf926b59368b63

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\11yH4903.exe

Filesize
415KB

MD5
88d7dfb1a4a2438445ab9407368d83c8

SHA1
6190ba9a4c423413a39b88b79cd2f5c7727d702e

SHA256
65fc6215e253a16bbb2d2077525cb4caa36ac1ff4d8820d4518c16ab288c7bca

SHA512
1973515b5107a5c96f2f720f6c3917cf862d803af5635def78f219ee4b502c8b3514e41026274567ce8b2da50e6c668fa34fd6f25078bebfe8bf926b59368b63

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\12FD682.exe

Filesize
378KB

MD5
0912be914a4f138a4c88f122bb5fbc8c

SHA1
2d000d6c1c75e8fa14ef34c82bb296cbb22fa756

SHA256
ac8bbb7a772f2025240df8a0ba7c6ece480934809101e9171a5f8b464e0ddd58

SHA512
7e0b5bed5a0d51a610b6b650c36be24bc49709f5d5245725179beac07c64b8fdef0f40e7c4e2798150c7b9e58a2f30dc4a3b1870243e819080daf5ef495936e0

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\12FD682.exe

Filesize
378KB

MD5
0912be914a4f138a4c88f122bb5fbc8c

SHA1
2d000d6c1c75e8fa14ef34c82bb296cbb22fa756

SHA256
ac8bbb7a772f2025240df8a0ba7c6ece480934809101e9171a5f8b464e0ddd58

SHA512
7e0b5bed5a0d51a610b6b650c36be24bc49709f5d5245725179beac07c64b8fdef0f40e7c4e2798150c7b9e58a2f30dc4a3b1870243e819080daf5ef495936e0

Download Submit
memory/1640-15-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1640-19-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1640-17-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1640-16-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4064-11-0x0000000074750000-0x0000000074F00000-memory.dmp

Filesize
7.7MB

Download
memory/4064-14-0x0000000007C20000-0x0000000007C30000-memory.dmp

Filesize
64KB

Download
memory/4064-13-0x0000000007990000-0x0000000007A22000-memory.dmp

Filesize
584KB

Download
memory/4064-12-0x0000000007EA0000-0x0000000008444000-memory.dmp

Filesize
5.6MB

Download
memory/4064-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4064-20-0x0000000007A50000-0x0000000007A5A000-memory.dmp

Filesize
40KB

Download
memory/4064-21-0x0000000074750000-0x0000000074F00000-memory.dmp

Filesize
7.7MB

Download
memory/4064-22-0x0000000007C20000-0x0000000007C30000-memory.dmp

Filesize
64KB

Download
memory/4064-23-0x0000000008A70000-0x0000000009088000-memory.dmp

Filesize
6.1MB

Download
memory/4064-24-0x0000000008560000-0x000000000866A000-memory.dmp

Filesize
1.0MB

Download
memory/4064-25-0x0000000008470000-0x0000000008482000-memory.dmp

Filesize
72KB

Download
memory/4064-26-0x00000000084D0000-0x000000000850C000-memory.dmp

Filesize
240KB

Download
memory/4064-27-0x0000000008510000-0x000000000855C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads