Malware Analysis Report

2024-12-08 01:24

Sample ID 231111-mrxhcsef48
Target NEAS.8c8535c6d6df1c07c43dc96805cb60d0a273d9f5ab0ec9055a74a701b17f80cc.exe
SHA256 8c8535c6d6df1c07c43dc96805cb60d0a273d9f5ab0ec9055a74a701b17f80cc
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

8c8535c6d6df1c07c43dc96805cb60d0a273d9f5ab0ec9055a74a701b17f80cc

Threat Level: Known bad

The file NEAS.8c8535c6d6df1c07c43dc96805cb60d0a273d9f5ab0ec9055a74a701b17f80cc.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 10:42

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-11-11 10:42

Reported

2023-11-11 10:45

Platform

win10v2004-20231023-en

Max time kernel

141s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\NEAS.8c8535c6d6df1c07c43dc96805cb60d0a273d9f5ab0ec9055a74a701b17f80cc.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-1-5-21-984744499-3605095035-265325720-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7GZ3XE39.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.8c8535c6d6df1c07c43dc96805cb60d0a273d9f5ab0ec9055a74a701b17f80cc.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\Vx9xM86.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2784 wrote to memory of 4852 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.8c8535c6d6df1c07c43dc96805cb60d0a273d9f5ab0ec9055a74a701b17f80cc.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Vx9xM86.exe
PID 2784 wrote to memory of 4852 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.8c8535c6d6df1c07c43dc96805cb60d0a273d9f5ab0ec9055a74a701b17f80cc.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Vx9xM86.exe
PID 2784 wrote to memory of 4852 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.8c8535c6d6df1c07c43dc96805cb60d0a273d9f5ab0ec9055a74a701b17f80cc.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Vx9xM86.exe
PID 4852 wrote to memory of 1844 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Vx9xM86.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Rq25eA9.exe
PID 4852 wrote to memory of 1844 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Vx9xM86.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Rq25eA9.exe
PID 4852 wrote to memory of 1844 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Vx9xM86.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Rq25eA9.exe
PID 1844 wrote to memory of 2572 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Rq25eA9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1844 wrote to memory of 2572 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Rq25eA9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1844 wrote to memory of 2572 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Rq25eA9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1844 wrote to memory of 2572 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Rq25eA9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1844 wrote to memory of 2572 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Rq25eA9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1844 wrote to memory of 2572 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Rq25eA9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1844 wrote to memory of 2572 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Rq25eA9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1844 wrote to memory of 2572 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Rq25eA9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1844 wrote to memory of 2572 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Rq25eA9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1844 wrote to memory of 2572 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Rq25eA9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4852 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Vx9xM86.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gC2240.exe
PID 4852 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Vx9xM86.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gC2240.exe
PID 4852 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Vx9xM86.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gC2240.exe
PID 2568 wrote to memory of 4916 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gC2240.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2568 wrote to memory of 4916 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gC2240.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2568 wrote to memory of 4916 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gC2240.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2568 wrote to memory of 4916 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gC2240.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2568 wrote to memory of 4916 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gC2240.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2568 wrote to memory of 4916 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gC2240.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2568 wrote to memory of 4916 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gC2240.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2568 wrote to memory of 4916 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gC2240.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2784 wrote to memory of 3732 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.8c8535c6d6df1c07c43dc96805cb60d0a273d9f5ab0ec9055a74a701b17f80cc.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7GZ3XE39.exe
PID 2784 wrote to memory of 3732 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.8c8535c6d6df1c07c43dc96805cb60d0a273d9f5ab0ec9055a74a701b17f80cc.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7GZ3XE39.exe
PID 2784 wrote to memory of 3732 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.8c8535c6d6df1c07c43dc96805cb60d0a273d9f5ab0ec9055a74a701b17f80cc.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7GZ3XE39.exe
PID 3732 wrote to memory of 4444 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7GZ3XE39.exe C:\Windows\SysWOW64\cmd.exe
PID 3732 wrote to memory of 4444 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7GZ3XE39.exe C:\Windows\SysWOW64\cmd.exe
PID 3732 wrote to memory of 4444 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7GZ3XE39.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Users\Admin\AppData\Local\Temp\NEAS.8c8535c6d6df1c07c43dc96805cb60d0a273d9f5ab0ec9055a74a701b17f80cc.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.8c8535c6d6df1c07c43dc96805cb60d0a273d9f5ab0ec9055a74a701b17f80cc.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Vx9xM86.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Vx9xM86.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Rq25eA9.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Rq25eA9.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\2gC2240.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gC2240.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2572 -ip 2572

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2572 -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\7GZ3XE39.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7GZ3XE39.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 72.32.126.40.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 8.8.8.8:53 254.23.238.8.in-addr.arpa udp
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
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
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
RU 5.42.92.51:19057 tcp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.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 13.227.111.52.in-addr.arpa udp
RU 5.42.92.51:19057 tcp
US 8.8.8.8:53 126.22.238.8.in-addr.arpa udp
RU 5.42.92.51:19057 tcp
US 8.8.8.8:53 123.10.44.20.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Vx9xM86.exe

MD5 e882288bc1da79791a9ccc00e56ff679
SHA1 11d81ff696d3088f87e4c219d23152ec5684ec96
SHA256 33aed903df391add57e2bb2f216a8ebaf4502154e15e8af91ac2b28bca016d0f
SHA512 e3c9f23867e992413b1e67b834a8e6315d2c295e5c420e45ba578ec9aed101c56c56a655d2f415bafca59797287ac5f8ef790dcd862c762b6050d1e3abb36eea

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Vx9xM86.exe

MD5 e882288bc1da79791a9ccc00e56ff679
SHA1 11d81ff696d3088f87e4c219d23152ec5684ec96
SHA256 33aed903df391add57e2bb2f216a8ebaf4502154e15e8af91ac2b28bca016d0f
SHA512 e3c9f23867e992413b1e67b834a8e6315d2c295e5c420e45ba578ec9aed101c56c56a655d2f415bafca59797287ac5f8ef790dcd862c762b6050d1e3abb36eea

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Rq25eA9.exe

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

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Rq25eA9.exe

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

memory/2572-14-0x0000000000400000-0x0000000000433000-memory.dmp

memory/2572-15-0x0000000000400000-0x0000000000433000-memory.dmp

memory/2572-16-0x0000000000400000-0x0000000000433000-memory.dmp

memory/2572-18-0x0000000000400000-0x0000000000433000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gC2240.exe

MD5 14d9834611ad581afcfea061652ff6cb
SHA1 802f964d0be7858eb2f1e7c6fcda03501fd1b71c
SHA256 e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60
SHA512 cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gC2240.exe

MD5 14d9834611ad581afcfea061652ff6cb
SHA1 802f964d0be7858eb2f1e7c6fcda03501fd1b71c
SHA256 e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60
SHA512 cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5

memory/4916-22-0x0000000000400000-0x000000000043C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7GZ3XE39.exe

MD5 5217c92707a192df43a9d2fdda621fec
SHA1 6369e8bc41c445f0ffa54fa94e34d01a039c2aba
SHA256 7a745c1caa63b5372d7ad155d712705c37b2a3e844b4ba366b0297ce69a4f331
SHA512 a72c68e79cb34025ce0e4c67f5120a68085a3a95e55fa79e8ea3b23f693731f7990b4f93f63cc3642f614709d3ca3c3b2049bad45eb70f1d166b3375e6a75015

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7GZ3XE39.exe

MD5 5217c92707a192df43a9d2fdda621fec
SHA1 6369e8bc41c445f0ffa54fa94e34d01a039c2aba
SHA256 7a745c1caa63b5372d7ad155d712705c37b2a3e844b4ba366b0297ce69a4f331
SHA512 a72c68e79cb34025ce0e4c67f5120a68085a3a95e55fa79e8ea3b23f693731f7990b4f93f63cc3642f614709d3ca3c3b2049bad45eb70f1d166b3375e6a75015

memory/4916-28-0x00000000743C0000-0x0000000074B70000-memory.dmp

memory/4916-30-0x0000000007BD0000-0x0000000008174000-memory.dmp

memory/4916-31-0x0000000007700000-0x0000000007792000-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/4916-37-0x0000000007670000-0x0000000007680000-memory.dmp

memory/4916-38-0x00000000077A0000-0x00000000077AA000-memory.dmp

memory/4916-39-0x00000000087A0000-0x0000000008DB8000-memory.dmp

memory/4916-40-0x0000000007A80000-0x0000000007B8A000-memory.dmp

memory/4916-41-0x0000000007970000-0x0000000007982000-memory.dmp

memory/4916-42-0x00000000079D0000-0x0000000007A0C000-memory.dmp

memory/4916-43-0x0000000007A10000-0x0000000007A5C000-memory.dmp

memory/4916-44-0x00000000743C0000-0x0000000074B70000-memory.dmp

memory/4916-45-0x0000000007670000-0x0000000007680000-memory.dmp