Malware Analysis Report

2024-11-15 04:58

Sample ID 240624-xx45ha1gnj
Target ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242
SHA256 ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242
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

ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242

Threat Level: Known bad

The file ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242 was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Detect Socks5Systemz Payload

Socks5Systemz

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 WriteProcessMemory

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-24 19:14

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-24 19:14

Reported

2024-06-24 19:17

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.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 91.211.247.248 N/A N/A
Destination IP 152.89.198.214 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-KDRPC.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4920 wrote to memory of 4648 N/A C:\Users\Admin\AppData\Local\Temp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.exe C:\Users\Admin\AppData\Local\Temp\is-KDRPC.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp
PID 4920 wrote to memory of 4648 N/A C:\Users\Admin\AppData\Local\Temp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.exe C:\Users\Admin\AppData\Local\Temp\is-KDRPC.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp
PID 4920 wrote to memory of 4648 N/A C:\Users\Admin\AppData\Local\Temp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.exe C:\Users\Admin\AppData\Local\Temp\is-KDRPC.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp
PID 4648 wrote to memory of 3948 N/A C:\Users\Admin\AppData\Local\Temp\is-KDRPC.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4648 wrote to memory of 3948 N/A C:\Users\Admin\AppData\Local\Temp\is-KDRPC.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4648 wrote to memory of 3948 N/A C:\Users\Admin\AppData\Local\Temp\is-KDRPC.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4648 wrote to memory of 4388 N/A C:\Users\Admin\AppData\Local\Temp\is-KDRPC.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4648 wrote to memory of 4388 N/A C:\Users\Admin\AppData\Local\Temp\is-KDRPC.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4648 wrote to memory of 4388 N/A C:\Users\Admin\AppData\Local\Temp\is-KDRPC.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.exe

"C:\Users\Admin\AppData\Local\Temp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.exe"

C:\Users\Admin\AppData\Local\Temp\is-KDRPC.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp

"C:\Users\Admin\AppData\Local\Temp\is-KDRPC.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp" /SL5="$501CE,5079536,54272,C:\Users\Admin\AppData\Local\Temp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.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
RU 152.89.198.214:53 dtsjxex.info udp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
RU 152.89.198.214:53 dtsjxex.info udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
LT 91.211.247.248:53 dtsjxex.info udp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp

Files

memory/4920-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4920-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-KDRPC.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp

MD5 849f967acbe0490ae11c6a70a6ffe6a0
SHA1 d3d2e9e9f80f7ca0b75eb79e884294c931171c5f
SHA256 45eb917ca974c2c3d5d1e24a24dd168b21b24a7476b3f39e16fb20d5737e1a97
SHA512 f2539e785d2068f6acda58146a93d5b4533642f35b496288e1ea5186a7a0391e6d4f9ace65a446c6656008cf1398d3820d3d2bc80b13182750bd3ab055dea7d1

C:\Users\Admin\AppData\Local\Temp\is-GB08D.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

memory/4648-16-0x0000000000400000-0x00000000004BA000-memory.dmp

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

MD5 3c8a20326cbf995ded542fafe682c672
SHA1 9527cb7630c9dfb556034df533d0985e72728aa0
SHA256 d25421ccea99d03ea10ccb92a7bd9700d01609e000d407016d3ed101a1f81e3f
SHA512 72716c1cb08c09da22717254018117b6424d3c5feb87cba026adeb75201c1681783fea4e3c8842ebe29106e6e86fcea1baf035db02dfa9e3095c7f49cc79e81f

memory/3948-59-0x0000000000400000-0x0000000000729000-memory.dmp

memory/3948-60-0x0000000000400000-0x0000000000729000-memory.dmp

memory/3948-64-0x0000000000400000-0x0000000000729000-memory.dmp

memory/3948-63-0x0000000000400000-0x0000000000729000-memory.dmp

memory/4920-67-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4648-68-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/4388-69-0x0000000000400000-0x0000000000729000-memory.dmp

memory/4388-72-0x0000000000400000-0x0000000000729000-memory.dmp

memory/4388-75-0x0000000000400000-0x0000000000729000-memory.dmp

memory/4388-78-0x0000000000400000-0x0000000000729000-memory.dmp

memory/4388-81-0x0000000000400000-0x0000000000729000-memory.dmp

memory/4388-84-0x0000000000A50000-0x0000000000AF2000-memory.dmp

memory/4388-86-0x0000000000400000-0x0000000000729000-memory.dmp

memory/4388-91-0x0000000000400000-0x0000000000729000-memory.dmp

memory/4388-94-0x0000000000400000-0x0000000000729000-memory.dmp

memory/4388-97-0x0000000000400000-0x0000000000729000-memory.dmp

memory/4388-100-0x0000000000400000-0x0000000000729000-memory.dmp

memory/4388-103-0x0000000000400000-0x0000000000729000-memory.dmp

memory/4388-106-0x0000000000400000-0x0000000000729000-memory.dmp

memory/4388-109-0x0000000000400000-0x0000000000729000-memory.dmp

memory/4388-112-0x0000000000400000-0x0000000000729000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-24 19:14

Reported

2024-06-24 19:17

Platform

win11-20240419-en

Max time kernel

147s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.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 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-OK23H.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1588 wrote to memory of 848 N/A C:\Users\Admin\AppData\Local\Temp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.exe C:\Users\Admin\AppData\Local\Temp\is-OK23H.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp
PID 1588 wrote to memory of 848 N/A C:\Users\Admin\AppData\Local\Temp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.exe C:\Users\Admin\AppData\Local\Temp\is-OK23H.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp
PID 1588 wrote to memory of 848 N/A C:\Users\Admin\AppData\Local\Temp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.exe C:\Users\Admin\AppData\Local\Temp\is-OK23H.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp
PID 848 wrote to memory of 3712 N/A C:\Users\Admin\AppData\Local\Temp\is-OK23H.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 848 wrote to memory of 3712 N/A C:\Users\Admin\AppData\Local\Temp\is-OK23H.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 848 wrote to memory of 3712 N/A C:\Users\Admin\AppData\Local\Temp\is-OK23H.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 848 wrote to memory of 1920 N/A C:\Users\Admin\AppData\Local\Temp\is-OK23H.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 848 wrote to memory of 1920 N/A C:\Users\Admin\AppData\Local\Temp\is-OK23H.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 848 wrote to memory of 1920 N/A C:\Users\Admin\AppData\Local\Temp\is-OK23H.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.exe

"C:\Users\Admin\AppData\Local\Temp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.exe"

C:\Users\Admin\AppData\Local\Temp\is-OK23H.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp

"C:\Users\Admin\AppData\Local\Temp\is-OK23H.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp" /SL5="$40222,5079536,54272,C:\Users\Admin\AppData\Local\Temp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.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 bnodfoo.com udp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp
RU 152.89.198.214:53 bnodfoo.com udp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
LT 91.211.247.248:53 bnodfoo.com udp

Files

memory/1588-2-0x0000000000401000-0x000000000040B000-memory.dmp

memory/1588-0-0x0000000000400000-0x0000000000414000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-OK23H.tmp\ff1d2878dc4c358df8e59c7c72790c96a09cdfca78b7646742cd9430908fb242.tmp

MD5 849f967acbe0490ae11c6a70a6ffe6a0
SHA1 d3d2e9e9f80f7ca0b75eb79e884294c931171c5f
SHA256 45eb917ca974c2c3d5d1e24a24dd168b21b24a7476b3f39e16fb20d5737e1a97
SHA512 f2539e785d2068f6acda58146a93d5b4533642f35b496288e1ea5186a7a0391e6d4f9ace65a446c6656008cf1398d3820d3d2bc80b13182750bd3ab055dea7d1

memory/848-8-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-62I6T.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 3c8a20326cbf995ded542fafe682c672
SHA1 9527cb7630c9dfb556034df533d0985e72728aa0
SHA256 d25421ccea99d03ea10ccb92a7bd9700d01609e000d407016d3ed101a1f81e3f
SHA512 72716c1cb08c09da22717254018117b6424d3c5feb87cba026adeb75201c1681783fea4e3c8842ebe29106e6e86fcea1baf035db02dfa9e3095c7f49cc79e81f

memory/3712-59-0x0000000000400000-0x0000000000729000-memory.dmp

memory/3712-60-0x0000000000400000-0x0000000000729000-memory.dmp

memory/3712-65-0x0000000000400000-0x0000000000729000-memory.dmp

memory/3712-64-0x0000000000400000-0x0000000000729000-memory.dmp

memory/1920-68-0x0000000000400000-0x0000000000729000-memory.dmp

memory/1588-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/848-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/1920-71-0x0000000000400000-0x0000000000729000-memory.dmp

memory/1920-74-0x0000000000400000-0x0000000000729000-memory.dmp

memory/1920-77-0x0000000000400000-0x0000000000729000-memory.dmp

memory/1920-80-0x0000000000400000-0x0000000000729000-memory.dmp

memory/1920-83-0x0000000000400000-0x0000000000729000-memory.dmp

memory/1920-86-0x0000000000970000-0x0000000000A12000-memory.dmp

memory/1920-89-0x0000000000400000-0x0000000000729000-memory.dmp

memory/1920-94-0x0000000000400000-0x0000000000729000-memory.dmp

memory/1920-97-0x0000000000400000-0x0000000000729000-memory.dmp

memory/1920-100-0x0000000000400000-0x0000000000729000-memory.dmp

memory/1920-103-0x0000000000400000-0x0000000000729000-memory.dmp

memory/1920-106-0x0000000000400000-0x0000000000729000-memory.dmp

memory/1920-109-0x0000000000400000-0x0000000000729000-memory.dmp

memory/1920-112-0x0000000000400000-0x0000000000729000-memory.dmp

memory/1920-115-0x0000000000400000-0x0000000000729000-memory.dmp