Malware Analysis Report

2025-01-02 05:02

Sample ID 231111-l6zetsdb8z
Target NEAS.6a1d11ef3a0d25efc377827f0565c6da1efc4b7d421fc66e02777b6aa92d6871.exe
SHA256 6a1d11ef3a0d25efc377827f0565c6da1efc4b7d421fc66e02777b6aa92d6871
Tags
mystic redline taiga infostealer persistence stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

6a1d11ef3a0d25efc377827f0565c6da1efc4b7d421fc66e02777b6aa92d6871

Threat Level: Known bad

The file NEAS.6a1d11ef3a0d25efc377827f0565c6da1efc4b7d421fc66e02777b6aa92d6871.exe was found to be: Known bad.

Malicious Activity Summary

mystic redline taiga infostealer persistence stealer

RedLine payload

Mystic

RedLine

Detect Mystic stealer payload

Checks computer location settings

Executes dropped EXE

Adds Run key to start application

Suspicious use of SetThreadContext

Enumerates physical storage devices

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-11-11 10:09

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-11-11 10:09

Reported

2023-11-11 10:12

Platform

win10v2004-20231020-en

Max time kernel

151s

Max time network

158s

Command Line

"C:\Users\Admin\AppData\Local\Temp\NEAS.6a1d11ef3a0d25efc377827f0565c6da1efc4b7d421fc66e02777b6aa92d6871.exe"

Signatures

Detect Mystic stealer payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Mystic

stealer mystic

RedLine

infostealer redline

RedLine payload

Description Indicator Process Target
N/A N/A N/A N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3350690463-3549324357-1323838019-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Jl6py67.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
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\\\"" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\za5JO91.exe N/A
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\\\"" C:\Users\Admin\AppData\Local\Temp\NEAS.6a1d11ef3a0d25efc377827f0565c6da1efc4b7d421fc66e02777b6aa92d6871.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3544 wrote to memory of 212 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.6a1d11ef3a0d25efc377827f0565c6da1efc4b7d421fc66e02777b6aa92d6871.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\za5JO91.exe
PID 3544 wrote to memory of 212 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.6a1d11ef3a0d25efc377827f0565c6da1efc4b7d421fc66e02777b6aa92d6871.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\za5JO91.exe
PID 3544 wrote to memory of 212 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.6a1d11ef3a0d25efc377827f0565c6da1efc4b7d421fc66e02777b6aa92d6871.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\za5JO91.exe
PID 212 wrote to memory of 2168 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\za5JO91.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe
PID 212 wrote to memory of 2168 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\za5JO91.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe
PID 212 wrote to memory of 2168 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\za5JO91.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe
PID 2168 wrote to memory of 3484 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2168 wrote to memory of 3484 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2168 wrote to memory of 3484 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2168 wrote to memory of 4504 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2168 wrote to memory of 4504 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2168 wrote to memory of 4504 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2168 wrote to memory of 4504 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2168 wrote to memory of 4504 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2168 wrote to memory of 4504 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2168 wrote to memory of 4504 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2168 wrote to memory of 4504 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2168 wrote to memory of 4504 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2168 wrote to memory of 4504 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 212 wrote to memory of 1068 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\za5JO91.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yl7412.exe
PID 212 wrote to memory of 1068 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\za5JO91.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yl7412.exe
PID 212 wrote to memory of 1068 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\za5JO91.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yl7412.exe
PID 1068 wrote to memory of 4948 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yl7412.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1068 wrote to memory of 4948 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yl7412.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1068 wrote to memory of 4948 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yl7412.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1068 wrote to memory of 4948 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yl7412.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1068 wrote to memory of 4948 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yl7412.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1068 wrote to memory of 4948 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yl7412.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1068 wrote to memory of 4948 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yl7412.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1068 wrote to memory of 4948 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yl7412.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 3544 wrote to memory of 4164 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.6a1d11ef3a0d25efc377827f0565c6da1efc4b7d421fc66e02777b6aa92d6871.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Jl6py67.exe
PID 3544 wrote to memory of 4164 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.6a1d11ef3a0d25efc377827f0565c6da1efc4b7d421fc66e02777b6aa92d6871.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Jl6py67.exe
PID 3544 wrote to memory of 4164 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.6a1d11ef3a0d25efc377827f0565c6da1efc4b7d421fc66e02777b6aa92d6871.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Jl6py67.exe
PID 4164 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Jl6py67.exe C:\Windows\SysWOW64\cmd.exe
PID 4164 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Jl6py67.exe C:\Windows\SysWOW64\cmd.exe
PID 4164 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Jl6py67.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Users\Admin\AppData\Local\Temp\NEAS.6a1d11ef3a0d25efc377827f0565c6da1efc4b7d421fc66e02777b6aa92d6871.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.6a1d11ef3a0d25efc377827f0565c6da1efc4b7d421fc66e02777b6aa92d6871.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\za5JO91.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\za5JO91.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yl7412.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yl7412.exe

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Jl6py67.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Jl6py67.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4504 -ip 4504

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4504 -s 540

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\is64.bat" "

Network

Country Destination Domain Proto
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 1.202.248.87.in-addr.arpa udp
US 8.8.8.8:53 198.1.85.104.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
RU 5.42.92.51:19057 tcp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 126.179.238.8.in-addr.arpa udp
RU 5.42.92.51:19057 tcp
RU 5.42.92.51:19057 tcp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
RU 5.42.92.51:19057 tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
RU 5.42.92.51:19057 tcp
US 8.8.8.8:53 9.173.189.20.in-addr.arpa udp
RU 5.42.92.51:19057 tcp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\za5JO91.exe

MD5 0406905e8736b80d0500a4036f0ffdf1
SHA1 ac97268be80f46ee6e859058e2c3870ad1d2508b
SHA256 f26ac4a90ae898eba6c686fcaa740b773a17993c0b0059db16ef3c232b888f61
SHA512 c32651db858f5f62f6552057807bc8f3904d1216b74e69531e53a600d2289bc41d0680de216b9ae370a7c927c4763ff674d6b6a5dcee84d9c249ad21f889e7d0

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\za5JO91.exe

MD5 0406905e8736b80d0500a4036f0ffdf1
SHA1 ac97268be80f46ee6e859058e2c3870ad1d2508b
SHA256 f26ac4a90ae898eba6c686fcaa740b773a17993c0b0059db16ef3c232b888f61
SHA512 c32651db858f5f62f6552057807bc8f3904d1216b74e69531e53a600d2289bc41d0680de216b9ae370a7c927c4763ff674d6b6a5dcee84d9c249ad21f889e7d0

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe

MD5 784667bb96ccb30c4cf44f2c5f493769
SHA1 28185165ab4dbbb4a139ae1af0bb6934ebe05c04
SHA256 1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9
SHA512 62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe

MD5 784667bb96ccb30c4cf44f2c5f493769
SHA1 28185165ab4dbbb4a139ae1af0bb6934ebe05c04
SHA256 1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9
SHA512 62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20

memory/4504-14-0x0000000000400000-0x0000000000433000-memory.dmp

memory/4504-15-0x0000000000400000-0x0000000000433000-memory.dmp

memory/4504-16-0x0000000000400000-0x0000000000433000-memory.dmp

memory/4504-18-0x0000000000400000-0x0000000000433000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yl7412.exe

MD5 14d9834611ad581afcfea061652ff6cb
SHA1 802f964d0be7858eb2f1e7c6fcda03501fd1b71c
SHA256 e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60
SHA512 cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yl7412.exe

MD5 14d9834611ad581afcfea061652ff6cb
SHA1 802f964d0be7858eb2f1e7c6fcda03501fd1b71c
SHA256 e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60
SHA512 cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5

memory/4948-22-0x0000000000400000-0x000000000043C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Jl6py67.exe

MD5 23574eca000c96d4d01d0cbf5447c80e
SHA1 b3d86a0b7d5327ea6380d49d247101325d10e36c
SHA256 0202fa9f89cf4758770596aa69e85993e2fcd9500c546d71a2b3d217b6090a29
SHA512 e2c27bbfd8a6f7d85d881bca74bb6b24a6e55f702c56f23ede4d76136c8dd589f56f6df1b989c3ab6e91a2c0be39c9b79c23ba7408b7cc0ac44d27c6ff29c0df

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Jl6py67.exe

MD5 23574eca000c96d4d01d0cbf5447c80e
SHA1 b3d86a0b7d5327ea6380d49d247101325d10e36c
SHA256 0202fa9f89cf4758770596aa69e85993e2fcd9500c546d71a2b3d217b6090a29
SHA512 e2c27bbfd8a6f7d85d881bca74bb6b24a6e55f702c56f23ede4d76136c8dd589f56f6df1b989c3ab6e91a2c0be39c9b79c23ba7408b7cc0ac44d27c6ff29c0df

memory/4948-28-0x0000000074530000-0x0000000074CE0000-memory.dmp

memory/4948-29-0x0000000007A50000-0x0000000007FF4000-memory.dmp

memory/4948-30-0x0000000007540000-0x00000000075D2000-memory.dmp

memory/4948-33-0x0000000007510000-0x0000000007520000-memory.dmp

memory/4948-34-0x0000000007600000-0x000000000760A000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is64.bat

MD5 225edee1d46e0a80610db26b275d72fb
SHA1 ce206abf11aaf19278b72f5021cc64b1b427b7e8
SHA256 e1befb57d724c9dc760cf42d7e0609212b22faeb2dc0c3ffe2fbd7134ff69559
SHA512 4f01a2a248a1322cb690b7395b818d2780e46f4884e59f1ab96125d642b6358eea97c7fad6023ef17209b218daa9c88d15ea2b92f124ecb8434c0c7b4a710504

C:\Users\Admin\AppData\Local\Temp\is64.txt

MD5 a5ea0ad9260b1550a14cc58d2c39b03d
SHA1 f0aedf295071ed34ab8c6a7692223d22b6a19841
SHA256 f1b2f662800122bed0ff255693df89c4487fbdcf453d3524a42d4ec20c3d9c04
SHA512 7c735c613ece191801114785c1ee26a0485cbf1e8ee2c3b85ba1ad290ef75eec9fede5e1a5dc26d504701f3542e6b6457818f4c1d62448d0db40d5f35c357d74

memory/4948-39-0x0000000008620000-0x0000000008C38000-memory.dmp

memory/4948-40-0x0000000008000000-0x000000000810A000-memory.dmp

memory/4948-41-0x0000000007910000-0x0000000007922000-memory.dmp

memory/4948-42-0x0000000007970000-0x00000000079AC000-memory.dmp

memory/4948-43-0x00000000079B0000-0x00000000079FC000-memory.dmp

memory/4948-44-0x0000000074530000-0x0000000074CE0000-memory.dmp

memory/4948-45-0x0000000007510000-0x0000000007520000-memory.dmp