Malware Analysis Report

2024-11-15 04:58

Sample ID 240624-xeglgsxcpc
Target 61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b
SHA256 61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b
Tags
socks5systemz botnet discovery
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b

Threat Level: Known bad

The file 61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Socks5Systemz

Detect Socks5Systemz Payload

Executes dropped EXE

Unexpected DNS network traffic destination

Loads dropped DLL

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 18:45

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-24 18:45

Reported

2024-06-24 18:48

Platform

win10v2004-20240611-en

Max time kernel

150s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.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 152.89.198.214 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-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4912 wrote to memory of 1252 N/A C:\Users\Admin\AppData\Local\Temp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.exe C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp
PID 4912 wrote to memory of 1252 N/A C:\Users\Admin\AppData\Local\Temp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.exe C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp
PID 4912 wrote to memory of 1252 N/A C:\Users\Admin\AppData\Local\Temp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.exe C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp
PID 1252 wrote to memory of 4784 N/A C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 1252 wrote to memory of 4784 N/A C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 1252 wrote to memory of 4784 N/A C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 1252 wrote to memory of 4580 N/A C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 1252 wrote to memory of 4580 N/A C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 1252 wrote to memory of 4580 N/A C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.exe

"C:\Users\Admin\AppData\Local\Temp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.exe"

C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp

"C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp" /SL5="$501CA,4763677,54272,C:\Users\Admin\AppData\Local\Temp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.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 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 80.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
NL 23.62.61.155:443 www.bing.com tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 155.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.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 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
RU 152.89.198.214:53 bpzfgme.com udp
TR 94.156.8.80:80 bpzfgme.com tcp
NL 79.132.128.125:2023 tcp
US 8.8.8.8:53 214.198.89.152.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 udp

Files

memory/4912-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4912-3-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp

MD5 ee6bb54f61abc5841cec671dbc2048b7
SHA1 336daad05b759a53ca82410918ad3a3e6140ac03
SHA256 e53d361f625cfd3769377684d87473d9ce687654f018caf64fd67c4bf881c8d5
SHA512 5bf7399be57cab50c20e691915494a9bbb43e5c03e7b6891ef5b42e27a105900f4481a2bad3232441871e0940fd9c17a039f2e76f2c6140f26da4df73bfbaacd

memory/1252-12-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-NDOE0.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 782c72372522d8c70bfacfc6ea168f5e
SHA1 dcb5f82f083a08eb248937937c8df2792c9536e4
SHA256 5b97a641e288c49101fcb40959a72c7bfc5105e65a204165bc3c3fc00ad9b496
SHA512 4f4c657f239ce605083287c14fe0f16d87457240434022860cb85d573c7c269a290aa1b63dd84e3b76d28a9039b8b18c5c13aba1b2cd70f40ab3be92123829ab

memory/4784-59-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4784-60-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4784-63-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4784-65-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4580-67-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4912-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1252-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/4580-71-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4580-74-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4580-77-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4580-80-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4580-83-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4580-86-0x0000000000830000-0x00000000008D2000-memory.dmp

memory/4580-88-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4580-93-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4580-96-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4580-99-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4580-102-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4580-105-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4580-108-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4580-109-0x0000000000830000-0x00000000008D2000-memory.dmp

memory/4580-110-0x0000000000830000-0x00000000008D2000-memory.dmp

memory/4580-114-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4580-117-0x0000000000400000-0x00000000006C8000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-24 18:45

Reported

2024-06-24 18:48

Platform

win11-20240611-en

Max time kernel

142s

Max time network

142s

Command Line

"C:\Users\Admin\AppData\Local\Temp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.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-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1444 wrote to memory of 4988 N/A C:\Users\Admin\AppData\Local\Temp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.exe C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp
PID 1444 wrote to memory of 4988 N/A C:\Users\Admin\AppData\Local\Temp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.exe C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp
PID 1444 wrote to memory of 4988 N/A C:\Users\Admin\AppData\Local\Temp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.exe C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp
PID 4988 wrote to memory of 2948 N/A C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4988 wrote to memory of 2948 N/A C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4988 wrote to memory of 2948 N/A C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4988 wrote to memory of 1356 N/A C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4988 wrote to memory of 1356 N/A C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4988 wrote to memory of 1356 N/A C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.exe

"C:\Users\Admin\AppData\Local\Temp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.exe"

C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp

"C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp" /SL5="$B006E,4763677,54272,C:\Users\Admin\AppData\Local\Temp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.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
SE 45.155.250.90:53 bfcgauv.com udp
TR 94.156.8.80:80 bfcgauv.com tcp
CH 176.10.111.158:2023 tcp

Files

memory/1444-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1444-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-RKS70.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp

MD5 ee6bb54f61abc5841cec671dbc2048b7
SHA1 336daad05b759a53ca82410918ad3a3e6140ac03
SHA256 e53d361f625cfd3769377684d87473d9ce687654f018caf64fd67c4bf881c8d5
SHA512 5bf7399be57cab50c20e691915494a9bbb43e5c03e7b6891ef5b42e27a105900f4481a2bad3232441871e0940fd9c17a039f2e76f2c6140f26da4df73bfbaacd

memory/4988-13-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-97KIE.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 782c72372522d8c70bfacfc6ea168f5e
SHA1 dcb5f82f083a08eb248937937c8df2792c9536e4
SHA256 5b97a641e288c49101fcb40959a72c7bfc5105e65a204165bc3c3fc00ad9b496
SHA512 4f4c657f239ce605083287c14fe0f16d87457240434022860cb85d573c7c269a290aa1b63dd84e3b76d28a9039b8b18c5c13aba1b2cd70f40ab3be92123829ab

memory/2948-59-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2948-65-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2948-60-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2948-63-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1356-67-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1356-69-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1444-70-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4988-71-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/1356-72-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1356-75-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1356-76-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1356-79-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1356-82-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1356-85-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1356-88-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1356-89-0x00000000009D0000-0x0000000000A72000-memory.dmp

memory/1356-95-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1356-98-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1356-99-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1356-102-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1356-105-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1356-108-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1356-111-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1356-114-0x00000000009D0000-0x0000000000A72000-memory.dmp

memory/1356-115-0x00000000009D0000-0x0000000000A72000-memory.dmp

memory/1356-116-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1356-120-0x0000000000400000-0x00000000006C8000-memory.dmp