Malware Analysis Report

2025-01-02 05:02

Sample ID 231111-l5wmjseb45
Target NEAS.6628fb77e3eefe18d7280851104b18d1889fb5ef50ce62b4db581e4ad7695a27.exe
SHA256 6628fb77e3eefe18d7280851104b18d1889fb5ef50ce62b4db581e4ad7695a27
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

6628fb77e3eefe18d7280851104b18d1889fb5ef50ce62b4db581e4ad7695a27

Threat Level: Known bad

The file NEAS.6628fb77e3eefe18d7280851104b18d1889fb5ef50ce62b4db581e4ad7695a27.exe was found to be: Known bad.

Malicious Activity Summary

mystic redline taiga infostealer persistence stealer

Detect Mystic stealer payload

Mystic

RedLine

RedLine 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 10:07

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-11-11 10:07

Reported

2023-11-11 10:11

Platform

win10v2004-20231020-en

Max time kernel

177s

Max time network

189s

Command Line

"C:\Users\Admin\AppData\Local\Temp\NEAS.6628fb77e3eefe18d7280851104b18d1889fb5ef50ce62b4db581e4ad7695a27.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-1-5-21-3811856890-180006922-3689258494-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5Ki22Th.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.6628fb77e3eefe18d7280851104b18d1889fb5ef50ce62b4db581e4ad7695a27.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\dE1EH61.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3048 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.6628fb77e3eefe18d7280851104b18d1889fb5ef50ce62b4db581e4ad7695a27.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dE1EH61.exe
PID 3048 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.6628fb77e3eefe18d7280851104b18d1889fb5ef50ce62b4db581e4ad7695a27.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dE1EH61.exe
PID 3048 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.6628fb77e3eefe18d7280851104b18d1889fb5ef50ce62b4db581e4ad7695a27.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dE1EH61.exe
PID 2364 wrote to memory of 4040 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dE1EH61.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3wi540OZ.exe
PID 2364 wrote to memory of 4040 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dE1EH61.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3wi540OZ.exe
PID 2364 wrote to memory of 4040 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dE1EH61.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3wi540OZ.exe
PID 4040 wrote to memory of 1820 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3wi540OZ.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4040 wrote to memory of 1820 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3wi540OZ.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4040 wrote to memory of 1820 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3wi540OZ.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4040 wrote to memory of 1820 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3wi540OZ.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4040 wrote to memory of 1820 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3wi540OZ.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4040 wrote to memory of 1820 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3wi540OZ.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4040 wrote to memory of 1820 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3wi540OZ.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4040 wrote to memory of 1820 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3wi540OZ.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4040 wrote to memory of 1820 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3wi540OZ.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4040 wrote to memory of 1820 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3wi540OZ.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2364 wrote to memory of 4388 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dE1EH61.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4TB2Fh3.exe
PID 2364 wrote to memory of 4388 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dE1EH61.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4TB2Fh3.exe
PID 2364 wrote to memory of 4388 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dE1EH61.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4TB2Fh3.exe
PID 4388 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4TB2Fh3.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4388 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4TB2Fh3.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4388 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4TB2Fh3.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4388 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4TB2Fh3.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4388 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4TB2Fh3.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4388 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4TB2Fh3.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4388 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4TB2Fh3.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4388 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4TB2Fh3.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 3048 wrote to memory of 4180 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.6628fb77e3eefe18d7280851104b18d1889fb5ef50ce62b4db581e4ad7695a27.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5Ki22Th.exe
PID 3048 wrote to memory of 4180 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.6628fb77e3eefe18d7280851104b18d1889fb5ef50ce62b4db581e4ad7695a27.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5Ki22Th.exe
PID 3048 wrote to memory of 4180 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.6628fb77e3eefe18d7280851104b18d1889fb5ef50ce62b4db581e4ad7695a27.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5Ki22Th.exe
PID 4180 wrote to memory of 3084 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5Ki22Th.exe C:\Windows\SysWOW64\cmd.exe
PID 4180 wrote to memory of 3084 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5Ki22Th.exe C:\Windows\SysWOW64\cmd.exe
PID 4180 wrote to memory of 3084 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5Ki22Th.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Users\Admin\AppData\Local\Temp\NEAS.6628fb77e3eefe18d7280851104b18d1889fb5ef50ce62b4db581e4ad7695a27.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.6628fb77e3eefe18d7280851104b18d1889fb5ef50ce62b4db581e4ad7695a27.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dE1EH61.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dE1EH61.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3wi540OZ.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3wi540OZ.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\4TB2Fh3.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4TB2Fh3.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1820 -ip 1820

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1820 -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\5Ki22Th.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5Ki22Th.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 8.8.8.8:53 254.43.238.8.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 198.1.85.104.in-addr.arpa udp
US 8.8.8.8:53 1.202.248.87.in-addr.arpa udp
RU 5.42.92.51:19057 tcp
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 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
RU 5.42.92.51:19057 tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
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
US 204.79.197.200:443 tse1.mm.bing.net tcp
RU 5.42.92.51:19057 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
RU 5.42.92.51:19057 tcp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dE1EH61.exe

MD5 f95f9b4bebbd894234adbda7933d89e8
SHA1 1ab3bb66bf4325346b0d313ab0643798f4d60543
SHA256 fc67b97f1ac225971f1b728b4f64534de3c4ee638a65db190e3a32cac8a8fa8a
SHA512 047c406ef6cb5f2c493586cd8e351293e7591f7fc770f812c48490fee32f363df2ec3781a0dd96928f886ac8954045a0a46733b14bfab8b33caa716227b06169

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dE1EH61.exe

MD5 f95f9b4bebbd894234adbda7933d89e8
SHA1 1ab3bb66bf4325346b0d313ab0643798f4d60543
SHA256 fc67b97f1ac225971f1b728b4f64534de3c4ee638a65db190e3a32cac8a8fa8a
SHA512 047c406ef6cb5f2c493586cd8e351293e7591f7fc770f812c48490fee32f363df2ec3781a0dd96928f886ac8954045a0a46733b14bfab8b33caa716227b06169

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3wi540OZ.exe

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

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3wi540OZ.exe

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

memory/1820-14-0x0000000000400000-0x0000000000433000-memory.dmp

memory/1820-15-0x0000000000400000-0x0000000000433000-memory.dmp

memory/1820-16-0x0000000000400000-0x0000000000433000-memory.dmp

memory/1820-18-0x0000000000400000-0x0000000000433000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4TB2Fh3.exe

MD5 14d9834611ad581afcfea061652ff6cb
SHA1 802f964d0be7858eb2f1e7c6fcda03501fd1b71c
SHA256 e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60
SHA512 cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4TB2Fh3.exe

MD5 14d9834611ad581afcfea061652ff6cb
SHA1 802f964d0be7858eb2f1e7c6fcda03501fd1b71c
SHA256 e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60
SHA512 cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5

memory/1944-22-0x0000000000400000-0x000000000043C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5Ki22Th.exe

MD5 8bd3dce5801b165589233f19b83876e9
SHA1 03651adc3968ed810e3dec089849e391f92e166c
SHA256 1e4c2727b1539a977e5af320f7658a03021d4c37b9be63138268b1bfe9f22f87
SHA512 65e161f6aa4e5e24586157f3a4c7c658f2ae3226778348663a9e0fd75f2cfa8c83bf94a2e43ed25590f40d44c6205c3beb0eeb0d8c0c6e3921521a1553ed5541

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5Ki22Th.exe

MD5 8bd3dce5801b165589233f19b83876e9
SHA1 03651adc3968ed810e3dec089849e391f92e166c
SHA256 1e4c2727b1539a977e5af320f7658a03021d4c37b9be63138268b1bfe9f22f87
SHA512 65e161f6aa4e5e24586157f3a4c7c658f2ae3226778348663a9e0fd75f2cfa8c83bf94a2e43ed25590f40d44c6205c3beb0eeb0d8c0c6e3921521a1553ed5541

memory/1944-28-0x0000000073C70000-0x0000000074420000-memory.dmp

memory/1944-29-0x0000000008020000-0x00000000085C4000-memory.dmp

memory/1944-30-0x0000000007B10000-0x0000000007BA2000-memory.dmp

memory/1944-31-0x0000000007D00000-0x0000000007D10000-memory.dmp

memory/1944-33-0x0000000007BB0000-0x0000000007BBA000-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/1944-39-0x0000000008BF0000-0x0000000009208000-memory.dmp

memory/1944-40-0x0000000007F10000-0x000000000801A000-memory.dmp

memory/1944-41-0x0000000007C90000-0x0000000007CA2000-memory.dmp

memory/1944-42-0x0000000007E00000-0x0000000007E3C000-memory.dmp

memory/1944-43-0x0000000007E40000-0x0000000007E8C000-memory.dmp

memory/1944-44-0x0000000073C70000-0x0000000074420000-memory.dmp

memory/1944-45-0x0000000007D00000-0x0000000007D10000-memory.dmp