Malware Analysis Report

2024-11-15 04:58

Sample ID 240624-q4nmrsvfld
Target 126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49
SHA256 126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49
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

126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49

Threat Level: Known bad

The file 126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49 was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Socks5Systemz

Detect Socks5Systemz Payload

Loads dropped DLL

Executes dropped EXE

Unexpected DNS network traffic destination

Checks installed software on the system

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-24 13:49

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-24 13:49

Reported

2024-06-24 13:51

Platform

win10v2004-20240611-en

Max time kernel

143s

Max time network

132s

Command Line

"C:\Users\Admin\AppData\Local\Temp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.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 141.98.234.31 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-CKM11.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4220 wrote to memory of 2992 N/A C:\Users\Admin\AppData\Local\Temp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.exe C:\Users\Admin\AppData\Local\Temp\is-CKM11.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp
PID 4220 wrote to memory of 2992 N/A C:\Users\Admin\AppData\Local\Temp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.exe C:\Users\Admin\AppData\Local\Temp\is-CKM11.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp
PID 4220 wrote to memory of 2992 N/A C:\Users\Admin\AppData\Local\Temp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.exe C:\Users\Admin\AppData\Local\Temp\is-CKM11.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp
PID 2992 wrote to memory of 4024 N/A C:\Users\Admin\AppData\Local\Temp\is-CKM11.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2992 wrote to memory of 4024 N/A C:\Users\Admin\AppData\Local\Temp\is-CKM11.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2992 wrote to memory of 4024 N/A C:\Users\Admin\AppData\Local\Temp\is-CKM11.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2992 wrote to memory of 1204 N/A C:\Users\Admin\AppData\Local\Temp\is-CKM11.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2992 wrote to memory of 1204 N/A C:\Users\Admin\AppData\Local\Temp\is-CKM11.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2992 wrote to memory of 1204 N/A C:\Users\Admin\AppData\Local\Temp\is-CKM11.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.exe

"C:\Users\Admin\AppData\Local\Temp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.exe"

C:\Users\Admin\AppData\Local\Temp\is-CKM11.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp

"C:\Users\Admin\AppData\Local\Temp\is-CKM11.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp" /SL5="$40248,4756942,54272,C:\Users\Admin\AppData\Local\Temp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.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 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 52.182.143.211:443 tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 32.251.17.2.in-addr.arpa udp
PL 93.184.221.240:80 tcp
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 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 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
HK 141.98.234.31:53 ejuytab.ua udp
TR 94.156.8.80:80 ejuytab.ua tcp
NL 79.132.128.125:2023 tcp
US 8.8.8.8:53 31.234.98.141.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

Files

memory/4220-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4220-3-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-CKM11.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp

MD5 6faef8d03f5a5daec4663607ffbfa3f2
SHA1 60d93a5d14dff756544f784051dfd98ea92ab8b0
SHA256 e6b403dd1141a7fb21e3363ce6ea4b1a37703bada1ba39187e099ab035186cbe
SHA512 9c68713fde2727d9853dcb375df6caa1bedd4b5956ff3fa92aded0d868667838912e1364cbe174be4b8f293424c9b6bccda1ff880bec25e6c7d141bf61cb772e

memory/2992-10-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-PBIC8.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 91d1f39cb3f5d0bdc28352b8c8b51c3e
SHA1 80df32f5c255cca0594e8feca01668ec9fc65947
SHA256 a291579cd45507b237ad21b0f98ba9021d563bf5039b22c6f148d0d4694b6dee
SHA512 badf6a747e7894c3993a3da07b9fbdaaf73bf5ab5e9578861a299ffa6517131859a4334430f8be2dcafc08e8abd2b9c935ef51035cb878d753b356a6cf942bf1

memory/4024-59-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/4024-60-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/4024-64-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/1204-66-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/4220-68-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2992-69-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/1204-70-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/1204-73-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/1204-76-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/1204-79-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/1204-82-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/1204-85-0x0000000000A30000-0x0000000000AD2000-memory.dmp

memory/1204-89-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/1204-92-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/1204-95-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/1204-98-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/1204-101-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/1204-104-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/1204-107-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/1204-108-0x0000000000A30000-0x0000000000AD2000-memory.dmp

memory/1204-109-0x0000000000A30000-0x0000000000AD2000-memory.dmp

memory/1204-113-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/1204-116-0x0000000000400000-0x00000000006C3000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-24 13:49

Reported

2024-06-24 13:51

Platform

win11-20240508-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.exe"

Signatures

Detect Socks5Systemz Payload

Description Indicator Process Target
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
Destination IP 91.211.247.248 N/A N/A
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-J81IR.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4760 wrote to memory of 2116 N/A C:\Users\Admin\AppData\Local\Temp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.exe C:\Users\Admin\AppData\Local\Temp\is-J81IR.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp
PID 4760 wrote to memory of 2116 N/A C:\Users\Admin\AppData\Local\Temp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.exe C:\Users\Admin\AppData\Local\Temp\is-J81IR.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp
PID 4760 wrote to memory of 2116 N/A C:\Users\Admin\AppData\Local\Temp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.exe C:\Users\Admin\AppData\Local\Temp\is-J81IR.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp
PID 2116 wrote to memory of 1748 N/A C:\Users\Admin\AppData\Local\Temp\is-J81IR.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2116 wrote to memory of 1748 N/A C:\Users\Admin\AppData\Local\Temp\is-J81IR.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2116 wrote to memory of 1748 N/A C:\Users\Admin\AppData\Local\Temp\is-J81IR.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2116 wrote to memory of 3628 N/A C:\Users\Admin\AppData\Local\Temp\is-J81IR.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2116 wrote to memory of 3628 N/A C:\Users\Admin\AppData\Local\Temp\is-J81IR.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2116 wrote to memory of 3628 N/A C:\Users\Admin\AppData\Local\Temp\is-J81IR.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.exe

"C:\Users\Admin\AppData\Local\Temp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.exe"

C:\Users\Admin\AppData\Local\Temp\is-J81IR.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp

"C:\Users\Admin\AppData\Local\Temp\is-J81IR.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp" /SL5="$70062,4756942,54272,C:\Users\Admin\AppData\Local\Temp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.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
IE 52.111.236.22:443 tcp
RU 152.89.198.214:53 erswddi.ua udp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
RU 152.89.198.214:53 erswddi.ua udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
LT 91.211.247.248:53 erswddi.ua udp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp

Files

memory/4760-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4760-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-J81IR.tmp\126e6e4e4903dbcd55eccd2728b16678ed7a8b76662b6939020b79298e2e1e49.tmp

MD5 6faef8d03f5a5daec4663607ffbfa3f2
SHA1 60d93a5d14dff756544f784051dfd98ea92ab8b0
SHA256 e6b403dd1141a7fb21e3363ce6ea4b1a37703bada1ba39187e099ab035186cbe
SHA512 9c68713fde2727d9853dcb375df6caa1bedd4b5956ff3fa92aded0d868667838912e1364cbe174be4b8f293424c9b6bccda1ff880bec25e6c7d141bf61cb772e

memory/2116-12-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-VUTU2.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 91d1f39cb3f5d0bdc28352b8c8b51c3e
SHA1 80df32f5c255cca0594e8feca01668ec9fc65947
SHA256 a291579cd45507b237ad21b0f98ba9021d563bf5039b22c6f148d0d4694b6dee
SHA512 badf6a747e7894c3993a3da07b9fbdaaf73bf5ab5e9578861a299ffa6517131859a4334430f8be2dcafc08e8abd2b9c935ef51035cb878d753b356a6cf942bf1

memory/1748-59-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/1748-60-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/1748-65-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/1748-64-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/3628-67-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/3628-69-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/4760-70-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2116-71-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/3628-72-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/3628-75-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/3628-76-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/3628-79-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/3628-82-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/3628-85-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/3628-86-0x0000000000A80000-0x0000000000B22000-memory.dmp

memory/3628-91-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/3628-96-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/3628-99-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/3628-102-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/3628-105-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/3628-108-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/3628-111-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/3628-114-0x0000000000400000-0x00000000006C3000-memory.dmp

memory/3628-117-0x0000000000400000-0x00000000006C3000-memory.dmp