Malware Analysis Report

2024-11-15 04:58

Sample ID 240624-y6npjs1flc
Target 63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d
SHA256 63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d
Tags
socks5systemz botnet discovery
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d

Threat Level: Known bad

The file 63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Detect Socks5Systemz Payload

Socks5Systemz

Loads dropped DLL

Unexpected DNS network traffic destination

Executes dropped EXE

Checks installed software on the system

Enumerates physical storage devices

Unsigned PE

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-24 20:24

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-24 20:24

Reported

2024-06-24 20:26

Platform

win11-20240611-en

Max time kernel

146s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe"

Signatures

Detect Socks5Systemz 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

Socks5Systemz

botnet socks5systemz

Unexpected DNS network traffic destination

Description Indicator Process Target
Destination IP 91.211.247.248 N/A N/A

Checks installed software on the system

discovery

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-80ULM.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5100 wrote to memory of 4516 N/A C:\Users\Admin\AppData\Local\Temp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe C:\Users\Admin\AppData\Local\Temp\is-80ULM.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp
PID 5100 wrote to memory of 4516 N/A C:\Users\Admin\AppData\Local\Temp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe C:\Users\Admin\AppData\Local\Temp\is-80ULM.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp
PID 5100 wrote to memory of 4516 N/A C:\Users\Admin\AppData\Local\Temp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe C:\Users\Admin\AppData\Local\Temp\is-80ULM.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp
PID 4516 wrote to memory of 3196 N/A C:\Users\Admin\AppData\Local\Temp\is-80ULM.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4516 wrote to memory of 3196 N/A C:\Users\Admin\AppData\Local\Temp\is-80ULM.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4516 wrote to memory of 3196 N/A C:\Users\Admin\AppData\Local\Temp\is-80ULM.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4516 wrote to memory of 4832 N/A C:\Users\Admin\AppData\Local\Temp\is-80ULM.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4516 wrote to memory of 4832 N/A C:\Users\Admin\AppData\Local\Temp\is-80ULM.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4516 wrote to memory of 4832 N/A C:\Users\Admin\AppData\Local\Temp\is-80ULM.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe

"C:\Users\Admin\AppData\Local\Temp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe"

C:\Users\Admin\AppData\Local\Temp\is-80ULM.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp

"C:\Users\Admin\AppData\Local\Temp\is-80ULM.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp" /SL5="$1301EA,4749858,54272,C:\Users\Admin\AppData\Local\Temp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe"

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -i

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -s

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
LT 91.211.247.248:53 bokcmff.com udp
TR 94.156.8.80:80 bokcmff.com tcp
EE 194.76.227.81:2023 tcp

Files

memory/5100-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/5100-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-80ULM.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp

MD5 7aae617848243476f1715d942fc9f929
SHA1 7ab84d0415f025db25fd5091c1ef5b0f543c5060
SHA256 9ac0c72d76944fdc7a0b34cfe364485e909e2b5e97ea30b99c8815eafeb5380e
SHA512 1ceab0ddf5d52523c6c8d42426d4c9d08a2fe8bd118e21a1d590b46f9afec50938f0f8903b892786535b6e468014e24b0c71d17c6bc3876b762051caaa2fd42c

C:\Users\Admin\AppData\Local\Temp\is-KNR0S.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

memory/4516-16-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

MD5 9a6bd5db33f2b2d034748003a505b46d
SHA1 d872afe7a6a14259b94ae3ad0e407ede1c6bcdc4
SHA256 81b985e701a558e5d01bc5c3d00d413f747388365fbbc5c7824c28219afa88b6
SHA512 8e08a9f452aea395ea698e1ceb2289e54c82df45cc5db2f19711ffe43ca1a6daff7098b74b0398fd9a9cd0a523490aa4d46db8ce9591c9df975798d1f2df798f

memory/3196-59-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/3196-65-0x0000000000400000-0x000000000047F000-memory.dmp

memory/3196-64-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/3196-60-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/4832-68-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/5100-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4516-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/4832-71-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/4832-74-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/4832-77-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/4832-80-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/4832-83-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/4832-86-0x0000000000A40000-0x0000000000AE2000-memory.dmp

memory/4832-89-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/4832-94-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/4832-97-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/4832-100-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/4832-103-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/4832-106-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/4832-109-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/4832-110-0x0000000000A40000-0x0000000000AE2000-memory.dmp

memory/4832-111-0x0000000000A40000-0x0000000000AE2000-memory.dmp

memory/4832-115-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/4832-118-0x0000000000400000-0x00000000006C3000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-24 20:24

Reported

2024-06-24 20:26

Platform

win10v2004-20240611-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe"

Signatures

Detect Socks5Systemz 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

Socks5Systemz

botnet socks5systemz

Unexpected DNS network traffic destination

Description Indicator Process Target
Destination IP 45.155.250.90 N/A N/A

Checks installed software on the system

discovery

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-312S8.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1580 wrote to memory of 752 N/A C:\Users\Admin\AppData\Local\Temp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe C:\Users\Admin\AppData\Local\Temp\is-312S8.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp
PID 1580 wrote to memory of 752 N/A C:\Users\Admin\AppData\Local\Temp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe C:\Users\Admin\AppData\Local\Temp\is-312S8.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp
PID 1580 wrote to memory of 752 N/A C:\Users\Admin\AppData\Local\Temp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe C:\Users\Admin\AppData\Local\Temp\is-312S8.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp
PID 752 wrote to memory of 1980 N/A C:\Users\Admin\AppData\Local\Temp\is-312S8.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 752 wrote to memory of 1980 N/A C:\Users\Admin\AppData\Local\Temp\is-312S8.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 752 wrote to memory of 1980 N/A C:\Users\Admin\AppData\Local\Temp\is-312S8.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 752 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\is-312S8.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 752 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\is-312S8.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 752 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\is-312S8.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe

"C:\Users\Admin\AppData\Local\Temp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe"

C:\Users\Admin\AppData\Local\Temp\is-312S8.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp

"C:\Users\Admin\AppData\Local\Temp\is-312S8.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp" /SL5="$60120,4749858,54272,C:\Users\Admin\AppData\Local\Temp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe"

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -i

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -s

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 99.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 32.251.17.2.in-addr.arpa udp
US 8.8.8.8:53 98.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
SE 45.155.250.90:53 aqmfvbg.ru udp
TR 94.156.8.80:80 aqmfvbg.ru tcp
NL 79.132.128.125:2023 tcp
US 8.8.8.8:53 90.250.155.45.in-addr.arpa udp
US 8.8.8.8:53 80.8.156.94.in-addr.arpa udp
US 8.8.8.8:53 125.128.132.79.in-addr.arpa udp
US 8.8.8.8:53 24.173.189.20.in-addr.arpa udp

Files

memory/1580-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1580-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-312S8.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp

MD5 7aae617848243476f1715d942fc9f929
SHA1 7ab84d0415f025db25fd5091c1ef5b0f543c5060
SHA256 9ac0c72d76944fdc7a0b34cfe364485e909e2b5e97ea30b99c8815eafeb5380e
SHA512 1ceab0ddf5d52523c6c8d42426d4c9d08a2fe8bd118e21a1d590b46f9afec50938f0f8903b892786535b6e468014e24b0c71d17c6bc3876b762051caaa2fd42c

memory/752-10-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-GJR7M.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

MD5 9a6bd5db33f2b2d034748003a505b46d
SHA1 d872afe7a6a14259b94ae3ad0e407ede1c6bcdc4
SHA256 81b985e701a558e5d01bc5c3d00d413f747388365fbbc5c7824c28219afa88b6
SHA512 8e08a9f452aea395ea698e1ceb2289e54c82df45cc5db2f19711ffe43ca1a6daff7098b74b0398fd9a9cd0a523490aa4d46db8ce9591c9df975798d1f2df798f

memory/1980-59-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/1980-60-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/1980-63-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/1980-65-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/2896-67-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/1580-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/752-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/2896-71-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/2896-74-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/2896-77-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/2896-80-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/2896-83-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/2896-86-0x0000000000950000-0x00000000009F2000-memory.dmp

memory/2896-88-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/2896-93-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/2896-96-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/2896-99-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/2896-102-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/2896-105-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/2896-108-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/2896-109-0x0000000000950000-0x00000000009F2000-memory.dmp

memory/2896-110-0x0000000000950000-0x00000000009F2000-memory.dmp

memory/2896-114-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/2896-117-0x0000000000400000-0x00000000006C3000-memory.dmp