Malware Analysis Report

2024-12-08 01:25

Sample ID 231111-mshetsef66
Target NEAS.cb2bc9241f33ad2bc4da94b974d56bbef841995acde30488b86870d9fe868151.exe
SHA256 cb2bc9241f33ad2bc4da94b974d56bbef841995acde30488b86870d9fe868151
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

cb2bc9241f33ad2bc4da94b974d56bbef841995acde30488b86870d9fe868151

Threat Level: Known bad

The file NEAS.cb2bc9241f33ad2bc4da94b974d56bbef841995acde30488b86870d9fe868151.exe was found to be: Known bad.

Malicious Activity Summary

mystic redline taiga infostealer persistence stealer

Mystic

RedLine

RedLine payload

Detect Mystic stealer payload

Executes dropped EXE

Checks computer location settings

Adds Run key to start application

Suspicious use of SetThreadContext

Enumerates physical storage devices

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-11-11 10:43

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-11-11 10:43

Reported

2023-11-11 10:46

Platform

win10v2004-20231020-en

Max time kernel

143s

Max time network

160s

Command Line

"C:\Users\Admin\AppData\Local\Temp\NEAS.cb2bc9241f33ad2bc4da94b974d56bbef841995acde30488b86870d9fe868151.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\5Tr26nZ.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_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\NEAS.cb2bc9241f33ad2bc4da94b974d56bbef841995acde30488b86870d9fe868151.exe N/A
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\qy4av68.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4576 wrote to memory of 828 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.cb2bc9241f33ad2bc4da94b974d56bbef841995acde30488b86870d9fe868151.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qy4av68.exe
PID 4576 wrote to memory of 828 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.cb2bc9241f33ad2bc4da94b974d56bbef841995acde30488b86870d9fe868151.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qy4av68.exe
PID 4576 wrote to memory of 828 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.cb2bc9241f33ad2bc4da94b974d56bbef841995acde30488b86870d9fe868151.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qy4av68.exe
PID 828 wrote to memory of 1040 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qy4av68.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3fb483Vb.exe
PID 828 wrote to memory of 1040 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qy4av68.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3fb483Vb.exe
PID 828 wrote to memory of 1040 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qy4av68.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3fb483Vb.exe
PID 1040 wrote to memory of 4476 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3fb483Vb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1040 wrote to memory of 4476 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3fb483Vb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1040 wrote to memory of 4476 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3fb483Vb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1040 wrote to memory of 4476 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3fb483Vb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1040 wrote to memory of 4476 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3fb483Vb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1040 wrote to memory of 4476 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3fb483Vb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1040 wrote to memory of 4476 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3fb483Vb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1040 wrote to memory of 4476 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3fb483Vb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1040 wrote to memory of 4476 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3fb483Vb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1040 wrote to memory of 4476 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3fb483Vb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 828 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qy4av68.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4wr0Mk9.exe
PID 828 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qy4av68.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4wr0Mk9.exe
PID 828 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qy4av68.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4wr0Mk9.exe
PID 2692 wrote to memory of 1736 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4wr0Mk9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2692 wrote to memory of 1736 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4wr0Mk9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2692 wrote to memory of 1736 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4wr0Mk9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2692 wrote to memory of 1736 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4wr0Mk9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2692 wrote to memory of 1736 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4wr0Mk9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2692 wrote to memory of 1736 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4wr0Mk9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2692 wrote to memory of 1736 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4wr0Mk9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2692 wrote to memory of 1736 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4wr0Mk9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4576 wrote to memory of 4220 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.cb2bc9241f33ad2bc4da94b974d56bbef841995acde30488b86870d9fe868151.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5Tr26nZ.exe
PID 4576 wrote to memory of 4220 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.cb2bc9241f33ad2bc4da94b974d56bbef841995acde30488b86870d9fe868151.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5Tr26nZ.exe
PID 4576 wrote to memory of 4220 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.cb2bc9241f33ad2bc4da94b974d56bbef841995acde30488b86870d9fe868151.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5Tr26nZ.exe
PID 4220 wrote to memory of 3760 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5Tr26nZ.exe C:\Windows\SysWOW64\cmd.exe
PID 4220 wrote to memory of 3760 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5Tr26nZ.exe C:\Windows\SysWOW64\cmd.exe
PID 4220 wrote to memory of 3760 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5Tr26nZ.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Users\Admin\AppData\Local\Temp\NEAS.cb2bc9241f33ad2bc4da94b974d56bbef841995acde30488b86870d9fe868151.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.cb2bc9241f33ad2bc4da94b974d56bbef841995acde30488b86870d9fe868151.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qy4av68.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qy4av68.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3fb483Vb.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3fb483Vb.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\4wr0Mk9.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4wr0Mk9.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 4476 -ip 4476

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4476 -s 540

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\5Tr26nZ.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5Tr26nZ.exe

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 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 198.1.85.104.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
RU 5.42.92.51:19057 tcp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
RU 5.42.92.51:19057 tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 58.252.72.23.in-addr.arpa udp
RU 5.42.92.51:19057 tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
RU 5.42.92.51:19057 tcp
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 8.8.8.8:53 18.173.189.20.in-addr.arpa udp
RU 5.42.92.51:19057 tcp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qy4av68.exe

MD5 746303b72fdbfa3e3e7bbe51208fd6b9
SHA1 c9c21a21e6d21eccf724d78586515c69443a5e21
SHA256 0704b51c65ff06a8d75711a65cddf16df015eba2d3fedac9eca0822a8fa211c5
SHA512 6705bbf8b10feeab79be37fe8c4fdea474d4cc6471ba44730433916375033fcb5ae93dadb80f8464c1be2780dad764c2157cc0c1418de72d113365580ef8739f

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qy4av68.exe

MD5 746303b72fdbfa3e3e7bbe51208fd6b9
SHA1 c9c21a21e6d21eccf724d78586515c69443a5e21
SHA256 0704b51c65ff06a8d75711a65cddf16df015eba2d3fedac9eca0822a8fa211c5
SHA512 6705bbf8b10feeab79be37fe8c4fdea474d4cc6471ba44730433916375033fcb5ae93dadb80f8464c1be2780dad764c2157cc0c1418de72d113365580ef8739f

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3fb483Vb.exe

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

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3fb483Vb.exe

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

memory/4476-14-0x0000000000400000-0x0000000000433000-memory.dmp

memory/4476-15-0x0000000000400000-0x0000000000433000-memory.dmp

memory/4476-18-0x0000000000400000-0x0000000000433000-memory.dmp

memory/4476-16-0x0000000000400000-0x0000000000433000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4wr0Mk9.exe

MD5 14d9834611ad581afcfea061652ff6cb
SHA1 802f964d0be7858eb2f1e7c6fcda03501fd1b71c
SHA256 e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60
SHA512 cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4wr0Mk9.exe

MD5 14d9834611ad581afcfea061652ff6cb
SHA1 802f964d0be7858eb2f1e7c6fcda03501fd1b71c
SHA256 e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60
SHA512 cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5

memory/1736-22-0x0000000000400000-0x000000000043C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5Tr26nZ.exe

MD5 b663b55f98da82619c6698b2e3495fee
SHA1 001976c567088f9933ca012ad0de8f5fe057f3c7
SHA256 9aadc052700993de63b9fa0eed6b146114f241b12ebb0fa999b5afcf05e6d1f3
SHA512 b31fd53c9a9ba47506d2e0ddcb5d37d293ab93dc62fb007e057385c62923e855afb95d3aa4655d971544a8dc2ed9d30a9e1da5b4bcce8d7da4f4c93573e6a393

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5Tr26nZ.exe

MD5 b663b55f98da82619c6698b2e3495fee
SHA1 001976c567088f9933ca012ad0de8f5fe057f3c7
SHA256 9aadc052700993de63b9fa0eed6b146114f241b12ebb0fa999b5afcf05e6d1f3
SHA512 b31fd53c9a9ba47506d2e0ddcb5d37d293ab93dc62fb007e057385c62923e855afb95d3aa4655d971544a8dc2ed9d30a9e1da5b4bcce8d7da4f4c93573e6a393

memory/1736-28-0x0000000074630000-0x0000000074DE0000-memory.dmp

memory/1736-29-0x0000000007A70000-0x0000000008014000-memory.dmp

memory/1736-31-0x00000000074C0000-0x0000000007552000-memory.dmp

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

MD5 225edee1d46e0a80610db26b275d72fb
SHA1 ce206abf11aaf19278b72f5021cc64b1b427b7e8
SHA256 e1befb57d724c9dc760cf42d7e0609212b22faeb2dc0c3ffe2fbd7134ff69559
SHA512 4f01a2a248a1322cb690b7395b818d2780e46f4884e59f1ab96125d642b6358eea97c7fad6023ef17209b218daa9c88d15ea2b92f124ecb8434c0c7b4a710504

memory/1736-34-0x0000000007750000-0x0000000007760000-memory.dmp

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

MD5 a5ea0ad9260b1550a14cc58d2c39b03d
SHA1 f0aedf295071ed34ab8c6a7692223d22b6a19841
SHA256 f1b2f662800122bed0ff255693df89c4487fbdcf453d3524a42d4ec20c3d9c04
SHA512 7c735c613ece191801114785c1ee26a0485cbf1e8ee2c3b85ba1ad290ef75eec9fede5e1a5dc26d504701f3542e6b6457818f4c1d62448d0db40d5f35c357d74

memory/1736-38-0x0000000007670000-0x000000000767A000-memory.dmp

memory/1736-39-0x0000000008640000-0x0000000008C58000-memory.dmp

memory/1736-40-0x0000000007870000-0x000000000797A000-memory.dmp

memory/1736-41-0x0000000007760000-0x0000000007772000-memory.dmp

memory/1736-42-0x00000000077C0000-0x00000000077FC000-memory.dmp

memory/1736-43-0x0000000007800000-0x000000000784C000-memory.dmp

memory/1736-44-0x0000000074630000-0x0000000074DE0000-memory.dmp

memory/1736-45-0x0000000007750000-0x0000000007760000-memory.dmp