Malware Analysis Report

2025-01-02 04:59

Sample ID 231111-mcwyaaec97
Target NEAS.c66fb8fbea8c3b399d02bc164b98aad6210d6903045a17f37f8b2732653231f0.exe
SHA256 c66fb8fbea8c3b399d02bc164b98aad6210d6903045a17f37f8b2732653231f0
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

c66fb8fbea8c3b399d02bc164b98aad6210d6903045a17f37f8b2732653231f0

Threat Level: Known bad

The file NEAS.c66fb8fbea8c3b399d02bc164b98aad6210d6903045a17f37f8b2732653231f0.exe was found to be: Known bad.

Malicious Activity Summary

mystic redline taiga infostealer persistence stealer

Detect Mystic stealer payload

Mystic

RedLine

RedLine payload

Executes dropped EXE

Checks computer location settings

Adds Run key to start application

Suspicious use of SetThreadContext

Unsigned PE

Program crash

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-11-11 10:19

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-11-11 10:19

Reported

2023-11-11 10:22

Platform

win10v2004-20231020-en

Max time kernel

142s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\NEAS.c66fb8fbea8c3b399d02bc164b98aad6210d6903045a17f37f8b2732653231f0.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
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-1-5-21-1873812795-1433807462-1429862679-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Zp0jr70.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.c66fb8fbea8c3b399d02bc164b98aad6210d6903045a17f37f8b2732653231f0.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\ED6SW77.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3936 wrote to memory of 1124 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.c66fb8fbea8c3b399d02bc164b98aad6210d6903045a17f37f8b2732653231f0.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ED6SW77.exe
PID 3936 wrote to memory of 1124 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.c66fb8fbea8c3b399d02bc164b98aad6210d6903045a17f37f8b2732653231f0.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ED6SW77.exe
PID 3936 wrote to memory of 1124 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.c66fb8fbea8c3b399d02bc164b98aad6210d6903045a17f37f8b2732653231f0.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ED6SW77.exe
PID 1124 wrote to memory of 3156 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ED6SW77.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1QD46NM7.exe
PID 1124 wrote to memory of 3156 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ED6SW77.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1QD46NM7.exe
PID 1124 wrote to memory of 3156 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ED6SW77.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1QD46NM7.exe
PID 3156 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1QD46NM7.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 3156 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1QD46NM7.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 3156 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1QD46NM7.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 3156 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1QD46NM7.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 3156 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1QD46NM7.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 3156 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1QD46NM7.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 3156 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1QD46NM7.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 3156 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1QD46NM7.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 3156 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1QD46NM7.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 3156 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1QD46NM7.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1124 wrote to memory of 3580 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ED6SW77.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gW7039.exe
PID 1124 wrote to memory of 3580 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ED6SW77.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gW7039.exe
PID 1124 wrote to memory of 3580 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ED6SW77.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gW7039.exe
PID 3580 wrote to memory of 4232 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gW7039.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 3580 wrote to memory of 4232 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gW7039.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 3580 wrote to memory of 4232 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gW7039.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 3580 wrote to memory of 4232 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gW7039.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 3580 wrote to memory of 4232 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gW7039.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 3580 wrote to memory of 4232 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gW7039.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 3580 wrote to memory of 4232 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gW7039.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 3580 wrote to memory of 4232 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gW7039.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 3936 wrote to memory of 920 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.c66fb8fbea8c3b399d02bc164b98aad6210d6903045a17f37f8b2732653231f0.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Zp0jr70.exe
PID 3936 wrote to memory of 920 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.c66fb8fbea8c3b399d02bc164b98aad6210d6903045a17f37f8b2732653231f0.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Zp0jr70.exe
PID 3936 wrote to memory of 920 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.c66fb8fbea8c3b399d02bc164b98aad6210d6903045a17f37f8b2732653231f0.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Zp0jr70.exe
PID 920 wrote to memory of 1736 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Zp0jr70.exe C:\Windows\SysWOW64\cmd.exe
PID 920 wrote to memory of 1736 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Zp0jr70.exe C:\Windows\SysWOW64\cmd.exe
PID 920 wrote to memory of 1736 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Zp0jr70.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Users\Admin\AppData\Local\Temp\NEAS.c66fb8fbea8c3b399d02bc164b98aad6210d6903045a17f37f8b2732653231f0.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.c66fb8fbea8c3b399d02bc164b98aad6210d6903045a17f37f8b2732653231f0.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ED6SW77.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ED6SW77.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1QD46NM7.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1QD46NM7.exe

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

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1440 -ip 1440

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1440 -s 204

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\2gW7039.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gW7039.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Zp0jr70.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Zp0jr70.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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 126.24.238.8.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
RU 5.42.92.51:19057 tcp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 1.208.79.178.in-addr.arpa udp
RU 5.42.92.51:19057 tcp
US 8.8.8.8:53 26.35.223.20.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
RU 5.42.92.51:19057 tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
RU 5.42.92.51:19057 tcp
RU 5.42.92.51:19057 tcp
US 8.8.8.8:53 3.17.178.52.in-addr.arpa udp
RU 5.42.92.51:19057 tcp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ED6SW77.exe

MD5 ab05c9b9666ca3c8249252f55ae36134
SHA1 acba46c4a1bebf5fbb3f8129c7fc77e855d42f3d
SHA256 2337958f142f89c6f4bc00008921974bdf901b1275ed35a03e3d3841f1419af1
SHA512 d65e494817d76683d54a3fdd53c1790140bb9afb0765fd3151c75f77a20021ae9f21c7d449478a88c7a9b707dbfc0a59317a2ef7768baab6b0489b36f893d60f

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ED6SW77.exe

MD5 ab05c9b9666ca3c8249252f55ae36134
SHA1 acba46c4a1bebf5fbb3f8129c7fc77e855d42f3d
SHA256 2337958f142f89c6f4bc00008921974bdf901b1275ed35a03e3d3841f1419af1
SHA512 d65e494817d76683d54a3fdd53c1790140bb9afb0765fd3151c75f77a20021ae9f21c7d449478a88c7a9b707dbfc0a59317a2ef7768baab6b0489b36f893d60f

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1QD46NM7.exe

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

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1QD46NM7.exe

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

memory/1440-14-0x0000000000400000-0x0000000000433000-memory.dmp

memory/1440-16-0x0000000000400000-0x0000000000433000-memory.dmp

memory/1440-18-0x0000000000400000-0x0000000000433000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gW7039.exe

MD5 14d9834611ad581afcfea061652ff6cb
SHA1 802f964d0be7858eb2f1e7c6fcda03501fd1b71c
SHA256 e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60
SHA512 cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2gW7039.exe

MD5 14d9834611ad581afcfea061652ff6cb
SHA1 802f964d0be7858eb2f1e7c6fcda03501fd1b71c
SHA256 e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60
SHA512 cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5

memory/1440-15-0x0000000000400000-0x0000000000433000-memory.dmp

memory/4232-22-0x0000000000400000-0x000000000043C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Zp0jr70.exe

MD5 3638347c78219e8d1322421c8d2cc518
SHA1 cca9ca7ec83143505a1b8484648799e222d9bec4
SHA256 dbc7a7ed2372ec80e0477c62e0b5de098501513cd645c72d942b366870a5b52a
SHA512 5e7b8019198767995fb9ed6bf6951d3173e89b15788062914ffce44de7a1d7e3c8b2d542e5fc7dc172fa7d9d9f10e8e1c212fc91fec365954df93201a4ad638a

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Zp0jr70.exe

MD5 3638347c78219e8d1322421c8d2cc518
SHA1 cca9ca7ec83143505a1b8484648799e222d9bec4
SHA256 dbc7a7ed2372ec80e0477c62e0b5de098501513cd645c72d942b366870a5b52a
SHA512 5e7b8019198767995fb9ed6bf6951d3173e89b15788062914ffce44de7a1d7e3c8b2d542e5fc7dc172fa7d9d9f10e8e1c212fc91fec365954df93201a4ad638a

memory/4232-28-0x0000000073DF0000-0x00000000745A0000-memory.dmp

memory/4232-29-0x00000000072E0000-0x0000000007884000-memory.dmp

memory/4232-30-0x0000000006E10000-0x0000000006EA2000-memory.dmp

memory/4232-33-0x0000000006DA0000-0x0000000006DB0000-memory.dmp

memory/4232-38-0x0000000006FC0000-0x0000000006FCA000-memory.dmp

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

MD5 a5ea0ad9260b1550a14cc58d2c39b03d
SHA1 f0aedf295071ed34ab8c6a7692223d22b6a19841
SHA256 f1b2f662800122bed0ff255693df89c4487fbdcf453d3524a42d4ec20c3d9c04
SHA512 7c735c613ece191801114785c1ee26a0485cbf1e8ee2c3b85ba1ad290ef75eec9fede5e1a5dc26d504701f3542e6b6457818f4c1d62448d0db40d5f35c357d74

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

MD5 225edee1d46e0a80610db26b275d72fb
SHA1 ce206abf11aaf19278b72f5021cc64b1b427b7e8
SHA256 e1befb57d724c9dc760cf42d7e0609212b22faeb2dc0c3ffe2fbd7134ff69559
SHA512 4f01a2a248a1322cb690b7395b818d2780e46f4884e59f1ab96125d642b6358eea97c7fad6023ef17209b218daa9c88d15ea2b92f124ecb8434c0c7b4a710504

memory/4232-39-0x0000000007EB0000-0x00000000084C8000-memory.dmp

memory/4232-40-0x0000000007170000-0x000000000727A000-memory.dmp

memory/4232-41-0x00000000070A0000-0x00000000070B2000-memory.dmp

memory/4232-42-0x0000000007100000-0x000000000713C000-memory.dmp

memory/4232-43-0x0000000007280000-0x00000000072CC000-memory.dmp

memory/4232-44-0x0000000073DF0000-0x00000000745A0000-memory.dmp

memory/4232-45-0x0000000006DA0000-0x0000000006DB0000-memory.dmp