Malware Analysis Report

2025-01-02 05:16

Sample ID 231111-cs4yqafg45
Target cacd315838b8fc3927e26523640b7b97.bin
SHA256 4759b1a38763790681b0216ffc18db1bdfd361be739c8f681fbb57d85d09a102
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

4759b1a38763790681b0216ffc18db1bdfd361be739c8f681fbb57d85d09a102

Threat Level: Known bad

The file cacd315838b8fc3927e26523640b7b97.bin was found to be: Known bad.

Malicious Activity Summary

mystic redline taiga infostealer persistence stealer

Mystic

RedLine payload

Detect Mystic stealer payload

RedLine

Executes dropped EXE

Checks computer location settings

Adds Run key to start application

Suspicious use of SetThreadContext

Program crash

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-11-11 02:21

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-11-11 02:21

Reported

2023-11-11 02:24

Platform

win10v2004-20231023-en

Max time kernel

183s

Max time network

192s

Command Line

"C:\Users\Admin\AppData\Local\Temp\eb556e24e841ba2f8498189a37e9529fc8e0951fb48078ff5a3d2aa47cf9a852.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\5ij23CS.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\eb556e24e841ba2f8498189a37e9529fc8e0951fb48078ff5a3d2aa47cf9a852.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\xI8DM66.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1464 wrote to memory of 4024 N/A C:\Users\Admin\AppData\Local\Temp\eb556e24e841ba2f8498189a37e9529fc8e0951fb48078ff5a3d2aa47cf9a852.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\xI8DM66.exe
PID 1464 wrote to memory of 4024 N/A C:\Users\Admin\AppData\Local\Temp\eb556e24e841ba2f8498189a37e9529fc8e0951fb48078ff5a3d2aa47cf9a852.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\xI8DM66.exe
PID 1464 wrote to memory of 4024 N/A C:\Users\Admin\AppData\Local\Temp\eb556e24e841ba2f8498189a37e9529fc8e0951fb48078ff5a3d2aa47cf9a852.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\xI8DM66.exe
PID 4024 wrote to memory of 4352 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\xI8DM66.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3VN703OC.exe
PID 4024 wrote to memory of 4352 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\xI8DM66.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3VN703OC.exe
PID 4024 wrote to memory of 4352 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\xI8DM66.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3VN703OC.exe
PID 4352 wrote to memory of 932 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3VN703OC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4352 wrote to memory of 932 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3VN703OC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4352 wrote to memory of 932 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3VN703OC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4352 wrote to memory of 932 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3VN703OC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4352 wrote to memory of 932 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3VN703OC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4352 wrote to memory of 932 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3VN703OC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4352 wrote to memory of 932 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3VN703OC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4352 wrote to memory of 932 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3VN703OC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4352 wrote to memory of 932 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3VN703OC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4352 wrote to memory of 932 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3VN703OC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4024 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\xI8DM66.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4Cf8MX0.exe
PID 4024 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\xI8DM66.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4Cf8MX0.exe
PID 4024 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\xI8DM66.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4Cf8MX0.exe
PID 1160 wrote to memory of 3752 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4Cf8MX0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1160 wrote to memory of 3752 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4Cf8MX0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1160 wrote to memory of 3752 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4Cf8MX0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1160 wrote to memory of 3752 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4Cf8MX0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1160 wrote to memory of 3752 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4Cf8MX0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1160 wrote to memory of 3752 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4Cf8MX0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1160 wrote to memory of 3752 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4Cf8MX0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1160 wrote to memory of 3752 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4Cf8MX0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1464 wrote to memory of 3376 N/A C:\Users\Admin\AppData\Local\Temp\eb556e24e841ba2f8498189a37e9529fc8e0951fb48078ff5a3d2aa47cf9a852.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5ij23CS.exe
PID 1464 wrote to memory of 3376 N/A C:\Users\Admin\AppData\Local\Temp\eb556e24e841ba2f8498189a37e9529fc8e0951fb48078ff5a3d2aa47cf9a852.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5ij23CS.exe
PID 1464 wrote to memory of 3376 N/A C:\Users\Admin\AppData\Local\Temp\eb556e24e841ba2f8498189a37e9529fc8e0951fb48078ff5a3d2aa47cf9a852.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5ij23CS.exe
PID 3376 wrote to memory of 4968 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5ij23CS.exe C:\Windows\SysWOW64\cmd.exe
PID 3376 wrote to memory of 4968 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5ij23CS.exe C:\Windows\SysWOW64\cmd.exe
PID 3376 wrote to memory of 4968 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5ij23CS.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Users\Admin\AppData\Local\Temp\eb556e24e841ba2f8498189a37e9529fc8e0951fb48078ff5a3d2aa47cf9a852.exe

"C:\Users\Admin\AppData\Local\Temp\eb556e24e841ba2f8498189a37e9529fc8e0951fb48078ff5a3d2aa47cf9a852.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\xI8DM66.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\xI8DM66.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3VN703OC.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3VN703OC.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\4Cf8MX0.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4Cf8MX0.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 932 -ip 932

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\5ij23CS.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5ij23CS.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 932 -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 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 121.175.53.84.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
RU 5.42.92.51:19057 tcp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.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
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
RU 5.42.92.51:19057 tcp
US 8.8.8.8:53 126.177.238.8.in-addr.arpa udp
RU 5.42.92.51:19057 tcp
US 8.8.8.8:53 67.112.168.52.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\xI8DM66.exe

MD5 8d13b07a05306fed25159798c62ac145
SHA1 df62d144852732d567ce1618f8dd3de1d6b7bdda
SHA256 3ff50e74a3dfea74e73abf706d58a012356df7434050e8ce1ad9dd98eac15fe5
SHA512 e6105f933d3167a78236d28011c2d3bf60034c0de591ba40f1c587b8ea9d8599b87342287e26bcdfe5d62be44155830a55a2fc4e34ea512593f215c5c7bb6211

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\xI8DM66.exe

MD5 8d13b07a05306fed25159798c62ac145
SHA1 df62d144852732d567ce1618f8dd3de1d6b7bdda
SHA256 3ff50e74a3dfea74e73abf706d58a012356df7434050e8ce1ad9dd98eac15fe5
SHA512 e6105f933d3167a78236d28011c2d3bf60034c0de591ba40f1c587b8ea9d8599b87342287e26bcdfe5d62be44155830a55a2fc4e34ea512593f215c5c7bb6211

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3VN703OC.exe

MD5 696b39c55412cbdf3609d691f045d0e0
SHA1 fb24b9ceab07fb70749c1de6eae4d247f34631df
SHA256 35034d917a5fabffd8159825c6272ec8b65120b03dd25790594192c7f9dfb3e1
SHA512 7b10670ff4336ad56b80a5bc7e87aed6d242d9eafbaf59e89525f4486d3ceba1113c52095a932b9fd426631265285d877b8f2b0795eb0ca04503334ec93d735c

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3VN703OC.exe

MD5 696b39c55412cbdf3609d691f045d0e0
SHA1 fb24b9ceab07fb70749c1de6eae4d247f34631df
SHA256 35034d917a5fabffd8159825c6272ec8b65120b03dd25790594192c7f9dfb3e1
SHA512 7b10670ff4336ad56b80a5bc7e87aed6d242d9eafbaf59e89525f4486d3ceba1113c52095a932b9fd426631265285d877b8f2b0795eb0ca04503334ec93d735c

memory/932-14-0x0000000000400000-0x0000000000433000-memory.dmp

memory/932-15-0x0000000000400000-0x0000000000433000-memory.dmp

memory/932-16-0x0000000000400000-0x0000000000433000-memory.dmp

memory/932-18-0x0000000000400000-0x0000000000433000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4Cf8MX0.exe

MD5 738263df8661b80f2c518532daaadbc4
SHA1 70bde4fa00e400b180cd01daf29648d188d29f40
SHA256 ae22fc4ee221ed5970f0bc4fbe049fc93bd0019982255fa64f60b6fbbc48f35b
SHA512 73da54d165842a91de4eedab383273fff3c538ffdae2271969343a1fe8c1d67db3d509c700c9308db9456c212dbe674a8ae9d2b5b1519e99c78a1b84ac3c3fe8

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4Cf8MX0.exe

MD5 738263df8661b80f2c518532daaadbc4
SHA1 70bde4fa00e400b180cd01daf29648d188d29f40
SHA256 ae22fc4ee221ed5970f0bc4fbe049fc93bd0019982255fa64f60b6fbbc48f35b
SHA512 73da54d165842a91de4eedab383273fff3c538ffdae2271969343a1fe8c1d67db3d509c700c9308db9456c212dbe674a8ae9d2b5b1519e99c78a1b84ac3c3fe8

memory/3752-22-0x0000000000400000-0x000000000043C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5ij23CS.exe

MD5 dacbe26fc94fc34f86b16e8015d6f988
SHA1 58a17bcaeba447fa81afaaa6091eb7e2967eb3cf
SHA256 0727269dd19593bcbd5aca69969512dde14cfd56da08ecf5e6487193ec065c17
SHA512 fc7eb5dab63101eca7c987a165f44e8a98306dcd1228ae3c5667d4c69c831fe9b11ee55420693d3a98cfd3adda241731db6943470ed894a88e84c9cad181d9ce

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5ij23CS.exe

MD5 dacbe26fc94fc34f86b16e8015d6f988
SHA1 58a17bcaeba447fa81afaaa6091eb7e2967eb3cf
SHA256 0727269dd19593bcbd5aca69969512dde14cfd56da08ecf5e6487193ec065c17
SHA512 fc7eb5dab63101eca7c987a165f44e8a98306dcd1228ae3c5667d4c69c831fe9b11ee55420693d3a98cfd3adda241731db6943470ed894a88e84c9cad181d9ce

memory/3752-28-0x0000000073760000-0x0000000073F10000-memory.dmp

memory/3752-30-0x0000000007CF0000-0x0000000008294000-memory.dmp

memory/3752-32-0x0000000007840000-0x00000000078D2000-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/3752-37-0x0000000007990000-0x00000000079A0000-memory.dmp

memory/3752-38-0x0000000007940000-0x000000000794A000-memory.dmp

memory/3752-39-0x00000000088C0000-0x0000000008ED8000-memory.dmp

memory/3752-40-0x00000000082A0000-0x00000000083AA000-memory.dmp

memory/3752-41-0x0000000007B10000-0x0000000007B22000-memory.dmp

memory/3752-42-0x0000000007B90000-0x0000000007BCC000-memory.dmp

memory/3752-43-0x00000000052C0000-0x000000000530C000-memory.dmp

memory/3752-44-0x0000000073760000-0x0000000073F10000-memory.dmp

memory/3752-45-0x0000000007990000-0x00000000079A0000-memory.dmp