Malware Analysis Report

2024-11-15 05:00

Sample ID 240530-2n8tjsde39
Target 34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642
SHA256 34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642
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

34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642

Threat Level: Known bad

The file 34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642 was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Socks5Systemz

Detect Socks5Systemz Payload

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

2024-05-30 22:44

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-30 22:44

Reported

2024-05-30 22:49

Platform

win7-20240508-en

Max time kernel

293s

Max time network

285s

Command Line

"C:\Users\Admin\AppData\Local\Temp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.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 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-0MDUH.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2444 wrote to memory of 2296 N/A C:\Users\Admin\AppData\Local\Temp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.exe C:\Users\Admin\AppData\Local\Temp\is-0MDUH.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp
PID 2444 wrote to memory of 2296 N/A C:\Users\Admin\AppData\Local\Temp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.exe C:\Users\Admin\AppData\Local\Temp\is-0MDUH.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp
PID 2444 wrote to memory of 2296 N/A C:\Users\Admin\AppData\Local\Temp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.exe C:\Users\Admin\AppData\Local\Temp\is-0MDUH.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp
PID 2444 wrote to memory of 2296 N/A C:\Users\Admin\AppData\Local\Temp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.exe C:\Users\Admin\AppData\Local\Temp\is-0MDUH.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp
PID 2444 wrote to memory of 2296 N/A C:\Users\Admin\AppData\Local\Temp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.exe C:\Users\Admin\AppData\Local\Temp\is-0MDUH.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp
PID 2444 wrote to memory of 2296 N/A C:\Users\Admin\AppData\Local\Temp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.exe C:\Users\Admin\AppData\Local\Temp\is-0MDUH.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp
PID 2444 wrote to memory of 2296 N/A C:\Users\Admin\AppData\Local\Temp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.exe C:\Users\Admin\AppData\Local\Temp\is-0MDUH.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp
PID 2296 wrote to memory of 2876 N/A C:\Users\Admin\AppData\Local\Temp\is-0MDUH.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe
PID 2296 wrote to memory of 2876 N/A C:\Users\Admin\AppData\Local\Temp\is-0MDUH.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe
PID 2296 wrote to memory of 2876 N/A C:\Users\Admin\AppData\Local\Temp\is-0MDUH.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe
PID 2296 wrote to memory of 2876 N/A C:\Users\Admin\AppData\Local\Temp\is-0MDUH.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe
PID 2296 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\is-0MDUH.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe
PID 2296 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\is-0MDUH.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe
PID 2296 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\is-0MDUH.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe
PID 2296 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\is-0MDUH.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.exe

"C:\Users\Admin\AppData\Local\Temp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.exe"

C:\Users\Admin\AppData\Local\Temp\is-0MDUH.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp

"C:\Users\Admin\AppData\Local\Temp\is-0MDUH.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp" /SL5="$4010A,4804141,54272,C:\Users\Admin\AppData\Local\Temp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.exe"

C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe

"C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe" -i

C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe

"C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe" -s

Network

Country Destination Domain Proto
RU 152.89.198.214:53 aqiwblr.ru udp
BG 79.110.49.184:80 aqiwblr.ru tcp
BG 79.110.49.184:80 aqiwblr.ru tcp
BG 79.110.49.184:80 aqiwblr.ru tcp
RU 152.89.198.214:53 gxorvvn.com udp
SE 45.155.250.229:80 gxorvvn.com tcp
SE 45.155.250.229:80 gxorvvn.com tcp
SE 45.155.250.229:80 gxorvvn.com tcp
BG 194.59.31.219:2023 tcp

Files

memory/2444-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2444-2-0x0000000000401000-0x000000000040B000-memory.dmp

\Users\Admin\AppData\Local\Temp\is-0MDUH.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp

MD5 b70ed3d1bcbe0eb891e7fcd65a6c77e4
SHA1 30cf3d962d02a6a985d9adb67c915295568d69fa
SHA256 3f93f208a112fac1c2fa79cab9829339bc479d2d6585c2e997465e986da5e6f7
SHA512 86197a5309226a26badf73e64935c0c373013694dbbefd7d87129accc4652adafa70e7a6a2b53845d67acdacb8081a14be67d0f63aa2554991572b60cc04ab86

\Users\Admin\AppData\Local\Temp\is-8CL0G.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

\Users\Admin\AppData\Local\Temp\is-8CL0G.tmp\_isetup\_shfoldr.dll

MD5 92dc6ef532fbb4a5c3201469a5b5eb63
SHA1 3e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA256 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA512 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

memory/2296-9-0x0000000000400000-0x00000000004BA000-memory.dmp

\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe

MD5 6e193493307124a4c213ee2624459c28
SHA1 c94d6a9da2a9f7e3edd003ba35183a70541cdfdf
SHA256 217bf8946ad94b5ae2b28fd9ba05dbd5ac1814a6d2a3c0efabc74b76500014bc
SHA512 db5e7831aab9c93816479ded8f73269e51dab694df60b385b2782ce15daa33550b5aaa481e22710c8d758457f2149f3a7073ff7546d5d421081372df9516d1b2

memory/2296-62-0x00000000040C0000-0x00000000043BF000-memory.dmp

memory/2876-65-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2876-66-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2876-70-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2540-72-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2444-74-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2296-75-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/2540-76-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2296-79-0x00000000040C0000-0x00000000043BF000-memory.dmp

memory/2540-80-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2540-83-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2540-86-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2540-89-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2540-92-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2540-93-0x0000000002230000-0x00000000022D2000-memory.dmp

memory/2540-99-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2540-102-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2540-105-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2540-108-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2540-111-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2540-114-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2540-117-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2540-120-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2540-123-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2540-127-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2540-130-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2540-133-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2540-136-0x0000000000400000-0x00000000006FF000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-30 22:44

Reported

2024-05-30 22:49

Platform

win10-20240404-en

Max time kernel

292s

Max time network

298s

Command Line

"C:\Users\Admin\AppData\Local\Temp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.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
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-M38S1.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5064 wrote to memory of 5056 N/A C:\Users\Admin\AppData\Local\Temp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.exe C:\Users\Admin\AppData\Local\Temp\is-M38S1.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp
PID 5064 wrote to memory of 5056 N/A C:\Users\Admin\AppData\Local\Temp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.exe C:\Users\Admin\AppData\Local\Temp\is-M38S1.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp
PID 5064 wrote to memory of 5056 N/A C:\Users\Admin\AppData\Local\Temp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.exe C:\Users\Admin\AppData\Local\Temp\is-M38S1.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp
PID 5056 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\is-M38S1.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe
PID 5056 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\is-M38S1.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe
PID 5056 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\is-M38S1.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe
PID 5056 wrote to memory of 5036 N/A C:\Users\Admin\AppData\Local\Temp\is-M38S1.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe
PID 5056 wrote to memory of 5036 N/A C:\Users\Admin\AppData\Local\Temp\is-M38S1.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe
PID 5056 wrote to memory of 5036 N/A C:\Users\Admin\AppData\Local\Temp\is-M38S1.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.exe

"C:\Users\Admin\AppData\Local\Temp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.exe"

C:\Users\Admin\AppData\Local\Temp\is-M38S1.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp

"C:\Users\Admin\AppData\Local\Temp\is-M38S1.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp" /SL5="$50236,4804141,54272,C:\Users\Admin\AppData\Local\Temp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.exe"

C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe

"C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe" -i

C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe

"C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe" -s

Network

Country Destination Domain Proto
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
HK 141.98.234.31:53 csfzwva.net udp
US 8.8.8.8:53 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.f.1.a.e.2.6.d.8.ip6.arpa udp
BG 79.110.49.184:80 csfzwva.net tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
BG 79.110.49.184:80 csfzwva.net tcp
BG 79.110.49.184:80 csfzwva.net tcp
HK 141.98.234.31:53 kbqaudu.ua udp
SE 45.155.250.229:80 kbqaudu.ua tcp
US 8.8.8.8:53 229.250.155.45.in-addr.arpa udp
SE 45.155.250.229:80 kbqaudu.ua tcp
SE 45.155.250.229:80 kbqaudu.ua tcp

Files

memory/5064-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/5064-3-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-M38S1.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp

MD5 b70ed3d1bcbe0eb891e7fcd65a6c77e4
SHA1 30cf3d962d02a6a985d9adb67c915295568d69fa
SHA256 3f93f208a112fac1c2fa79cab9829339bc479d2d6585c2e997465e986da5e6f7
SHA512 86197a5309226a26badf73e64935c0c373013694dbbefd7d87129accc4652adafa70e7a6a2b53845d67acdacb8081a14be67d0f63aa2554991572b60cc04ab86

\Users\Admin\AppData\Local\Temp\is-2LSV7.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

memory/5056-16-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe

MD5 6e193493307124a4c213ee2624459c28
SHA1 c94d6a9da2a9f7e3edd003ba35183a70541cdfdf
SHA256 217bf8946ad94b5ae2b28fd9ba05dbd5ac1814a6d2a3c0efabc74b76500014bc
SHA512 db5e7831aab9c93816479ded8f73269e51dab694df60b385b2782ce15daa33550b5aaa481e22710c8d758457f2149f3a7073ff7546d5d421081372df9516d1b2

memory/2552-59-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2552-60-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/2552-63-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/5036-65-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/5064-67-0x0000000000400000-0x0000000000414000-memory.dmp

memory/5056-68-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/5036-69-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/5036-72-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/5036-75-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/5036-78-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/5036-81-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/5036-84-0x0000000000950000-0x00000000009F2000-memory.dmp

memory/5036-86-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/5036-91-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/5036-94-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/5036-97-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/5036-100-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/5036-103-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/5036-106-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/5036-109-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/5036-112-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/5036-115-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/5036-118-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/5036-122-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/5036-125-0x0000000000400000-0x00000000006FF000-memory.dmp

memory/5036-128-0x0000000000400000-0x00000000006FF000-memory.dmp