Malware Analysis Report

2024-11-15 04:58

Sample ID 240625-rgzl7axdpk
Target a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6
SHA256 a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6
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

a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6

Threat Level: Known bad

The file a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6 was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Detect Socks5Systemz Payload

Socks5Systemz

Executes dropped EXE

Loads dropped DLL

Unexpected DNS network traffic destination

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

2024-06-25 14:10

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-25 14:10

Reported

2024-06-25 14:13

Platform

win10v2004-20240611-en

Max time kernel

142s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.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 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-8FDPT.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 632 wrote to memory of 4072 N/A C:\Users\Admin\AppData\Local\Temp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.exe C:\Users\Admin\AppData\Local\Temp\is-8FDPT.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp
PID 632 wrote to memory of 4072 N/A C:\Users\Admin\AppData\Local\Temp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.exe C:\Users\Admin\AppData\Local\Temp\is-8FDPT.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp
PID 632 wrote to memory of 4072 N/A C:\Users\Admin\AppData\Local\Temp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.exe C:\Users\Admin\AppData\Local\Temp\is-8FDPT.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp
PID 4072 wrote to memory of 5040 N/A C:\Users\Admin\AppData\Local\Temp\is-8FDPT.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 4072 wrote to memory of 5040 N/A C:\Users\Admin\AppData\Local\Temp\is-8FDPT.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 4072 wrote to memory of 5040 N/A C:\Users\Admin\AppData\Local\Temp\is-8FDPT.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 4072 wrote to memory of 2660 N/A C:\Users\Admin\AppData\Local\Temp\is-8FDPT.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 4072 wrote to memory of 2660 N/A C:\Users\Admin\AppData\Local\Temp\is-8FDPT.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 4072 wrote to memory of 2660 N/A C:\Users\Admin\AppData\Local\Temp\is-8FDPT.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.exe

"C:\Users\Admin\AppData\Local\Temp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.exe"

C:\Users\Admin\AppData\Local\Temp\is-8FDPT.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp

"C:\Users\Admin\AppData\Local\Temp\is-8FDPT.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp" /SL5="$100052,5036830,54272,C:\Users\Admin\AppData\Local\Temp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.exe"

C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe

"C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe" -i

C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe

"C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.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 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
BE 88.221.83.209:443 www.bing.com tcp
US 8.8.8.8:53 209.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 32.251.17.2.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.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 58.99.105.20.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
HK 141.98.234.31:53 bokcniu.com udp
TR 94.156.8.80:80 bokcniu.com 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

Files

memory/632-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/632-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-8FDPT.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp

MD5 7eb98740167ad7dbefff3c4d9d1fc0db
SHA1 40b8b622a22af40238bee99bcbac0779d40f54f1
SHA256 bbf8e4ad4755ba2db5fe3a5d1038c8bf5cef316d306a414f8e4ff7bd2e53e144
SHA512 6255ccc17052e83c5c922c198622585e23e4d9035609ad35eb765c66860abf66b7246abbd994f6242efdd12344d67bbe3a2eb141622ce2d89b2a6e54c7d328e7

memory/4072-10-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-E9KJC.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe

MD5 3eded396b7c393283e7d4e8a61a1e1d5
SHA1 37bc2f9a682ecae4591ab5bfb1b9d48e766fc483
SHA256 4af64c27f6b99556ab3f7565864118b0fd8f9edaab218753d1dd71a1979d3c9f
SHA512 01d0c1c9a3aa54ed806b74cfcea5bf013ed4b7f09b9adc444d6418d7122bfafb9f6b905145f89caac8869d393022c3d91f3a71b3647093057f7d0d0c338e35a3

memory/5040-59-0x0000000000400000-0x000000000073A000-memory.dmp

memory/5040-60-0x0000000000400000-0x000000000073A000-memory.dmp

memory/5040-65-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2660-67-0x0000000000400000-0x000000000073A000-memory.dmp

memory/5040-63-0x0000000000400000-0x000000000073A000-memory.dmp

memory/632-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4072-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/2660-71-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2660-74-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2660-77-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2660-80-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2660-83-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2660-86-0x00000000008B0000-0x0000000000952000-memory.dmp

memory/2660-90-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2660-93-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2660-96-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2660-99-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2660-102-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2660-105-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2660-108-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2660-112-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2660-115-0x0000000000400000-0x000000000073A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-25 14:10

Reported

2024-06-25 14:13

Platform

win11-20240508-en

Max time kernel

147s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.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-AAKIH.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 412 wrote to memory of 496 N/A C:\Users\Admin\AppData\Local\Temp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.exe C:\Users\Admin\AppData\Local\Temp\is-AAKIH.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp
PID 412 wrote to memory of 496 N/A C:\Users\Admin\AppData\Local\Temp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.exe C:\Users\Admin\AppData\Local\Temp\is-AAKIH.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp
PID 412 wrote to memory of 496 N/A C:\Users\Admin\AppData\Local\Temp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.exe C:\Users\Admin\AppData\Local\Temp\is-AAKIH.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp
PID 496 wrote to memory of 3600 N/A C:\Users\Admin\AppData\Local\Temp\is-AAKIH.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 496 wrote to memory of 3600 N/A C:\Users\Admin\AppData\Local\Temp\is-AAKIH.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 496 wrote to memory of 3600 N/A C:\Users\Admin\AppData\Local\Temp\is-AAKIH.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 496 wrote to memory of 2232 N/A C:\Users\Admin\AppData\Local\Temp\is-AAKIH.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 496 wrote to memory of 2232 N/A C:\Users\Admin\AppData\Local\Temp\is-AAKIH.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 496 wrote to memory of 2232 N/A C:\Users\Admin\AppData\Local\Temp\is-AAKIH.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.exe

"C:\Users\Admin\AppData\Local\Temp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.exe"

C:\Users\Admin\AppData\Local\Temp\is-AAKIH.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp

"C:\Users\Admin\AppData\Local\Temp\is-AAKIH.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp" /SL5="$40202,5036830,54272,C:\Users\Admin\AppData\Local\Temp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.exe"

C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe

"C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe" -i

C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe

"C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe" -s

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
RU 152.89.198.214:53 aagumub.ru udp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
RU 152.89.198.214:53 aagumub.ru udp
LT 91.211.247.248:53 aagumub.ru udp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp

Files

memory/412-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/412-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-AAKIH.tmp\a858e5ad9de806b91ea496378464b32b6bbd7df26203124018ac4702f8e77cb6.tmp

MD5 7eb98740167ad7dbefff3c4d9d1fc0db
SHA1 40b8b622a22af40238bee99bcbac0779d40f54f1
SHA256 bbf8e4ad4755ba2db5fe3a5d1038c8bf5cef316d306a414f8e4ff7bd2e53e144
SHA512 6255ccc17052e83c5c922c198622585e23e4d9035609ad35eb765c66860abf66b7246abbd994f6242efdd12344d67bbe3a2eb141622ce2d89b2a6e54c7d328e7

memory/496-13-0x0000000000400000-0x00000000004BA000-memory.dmp

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

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe

MD5 3eded396b7c393283e7d4e8a61a1e1d5
SHA1 37bc2f9a682ecae4591ab5bfb1b9d48e766fc483
SHA256 4af64c27f6b99556ab3f7565864118b0fd8f9edaab218753d1dd71a1979d3c9f
SHA512 01d0c1c9a3aa54ed806b74cfcea5bf013ed4b7f09b9adc444d6418d7122bfafb9f6b905145f89caac8869d393022c3d91f3a71b3647093057f7d0d0c338e35a3

memory/3600-59-0x0000000000400000-0x000000000073A000-memory.dmp

memory/3600-60-0x0000000000400000-0x000000000073A000-memory.dmp

memory/3600-63-0x0000000000400000-0x000000000073A000-memory.dmp

memory/3600-65-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2232-68-0x0000000000400000-0x000000000073A000-memory.dmp

memory/412-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/496-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/2232-71-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2232-74-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2232-77-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2232-80-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2232-83-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2232-84-0x0000000000B70000-0x0000000000C12000-memory.dmp

memory/2232-88-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2232-94-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2232-97-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2232-100-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2232-103-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2232-106-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2232-109-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2232-112-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2232-115-0x0000000000400000-0x000000000073A000-memory.dmp