Malware Analysis Report

2024-11-15 04:58

Sample ID 240624-yqvsxszhjd
Target d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15
SHA256 d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15
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

d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15

Threat Level: Known bad

The file d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15 was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Socks5Systemz

Detect Socks5Systemz Payload

Unexpected DNS network traffic destination

Executes dropped EXE

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 19:59

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-24 19:59

Reported

2024-06-24 20:02

Platform

win10v2004-20240508-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.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 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-I3O1L.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 232 wrote to memory of 3452 N/A C:\Users\Admin\AppData\Local\Temp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.exe C:\Users\Admin\AppData\Local\Temp\is-I3O1L.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp
PID 232 wrote to memory of 3452 N/A C:\Users\Admin\AppData\Local\Temp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.exe C:\Users\Admin\AppData\Local\Temp\is-I3O1L.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp
PID 232 wrote to memory of 3452 N/A C:\Users\Admin\AppData\Local\Temp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.exe C:\Users\Admin\AppData\Local\Temp\is-I3O1L.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp
PID 3452 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\is-I3O1L.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 3452 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\is-I3O1L.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 3452 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\is-I3O1L.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 3452 wrote to memory of 4100 N/A C:\Users\Admin\AppData\Local\Temp\is-I3O1L.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 3452 wrote to memory of 4100 N/A C:\Users\Admin\AppData\Local\Temp\is-I3O1L.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 3452 wrote to memory of 4100 N/A C:\Users\Admin\AppData\Local\Temp\is-I3O1L.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.exe

"C:\Users\Admin\AppData\Local\Temp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.exe"

C:\Users\Admin\AppData\Local\Temp\is-I3O1L.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp

"C:\Users\Admin\AppData\Local\Temp\is-I3O1L.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp" /SL5="$401E6,4807771,54272,C:\Users\Admin\AppData\Local\Temp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.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 csdwkok.net udp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp
RU 152.89.198.214:53 csdwkok.net udp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
LT 91.211.247.248:53 csdwkok.net udp

Files

memory/232-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/232-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-I3O1L.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp

MD5 b9936ad678f4594b574641d0dca651b0
SHA1 be5a1cb9c1263eba95da8d68ccc8f3e060447622
SHA256 94f2edfd8217a17a10957ecb6b31195b00f1e426b09463505060cb655ee00f39
SHA512 c3e851c021c8c9ab1ff86dba6749a42a823a3ceaf5b18461ffe20a372fd3ea81a76f460cac4e6b803c0e17005ccbdd82c34cd96c5be3dd0aa996d00280f51ee7

memory/3452-9-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-E0SGM.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 c9abc74836003c1758dbbabc05384ff3
SHA1 75a97608e3d06cf3036dba06205dde6660149e5b
SHA256 b8630de3bb58c588abe12c24b8612180a29112439539d5b38d6115f561098d60
SHA512 5bd4e07a668db623441e83cd5589613aa6cc4ad107ed0b4524f95b9ac63269d20558a0a1cb27f00b070d41edb19822910dc36499d6626af8d237c51695532348

memory/2460-59-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2460-60-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2460-63-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2460-64-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4100-67-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/232-68-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3452-69-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/4100-70-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4100-73-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4100-76-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4100-79-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4100-82-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4100-85-0x00000000008C0000-0x0000000000962000-memory.dmp

memory/4100-87-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4100-92-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4100-95-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4100-98-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4100-101-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4100-104-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4100-107-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4100-110-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4100-113-0x0000000000400000-0x00000000006C8000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-24 19:59

Reported

2024-06-24 20:02

Platform

win11-20240508-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.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-ONT3A.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3920 wrote to memory of 2920 N/A C:\Users\Admin\AppData\Local\Temp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.exe C:\Users\Admin\AppData\Local\Temp\is-ONT3A.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp
PID 3920 wrote to memory of 2920 N/A C:\Users\Admin\AppData\Local\Temp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.exe C:\Users\Admin\AppData\Local\Temp\is-ONT3A.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp
PID 3920 wrote to memory of 2920 N/A C:\Users\Admin\AppData\Local\Temp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.exe C:\Users\Admin\AppData\Local\Temp\is-ONT3A.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp
PID 2920 wrote to memory of 2228 N/A C:\Users\Admin\AppData\Local\Temp\is-ONT3A.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2920 wrote to memory of 2228 N/A C:\Users\Admin\AppData\Local\Temp\is-ONT3A.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2920 wrote to memory of 2228 N/A C:\Users\Admin\AppData\Local\Temp\is-ONT3A.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2920 wrote to memory of 4376 N/A C:\Users\Admin\AppData\Local\Temp\is-ONT3A.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2920 wrote to memory of 4376 N/A C:\Users\Admin\AppData\Local\Temp\is-ONT3A.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2920 wrote to memory of 4376 N/A C:\Users\Admin\AppData\Local\Temp\is-ONT3A.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.exe

"C:\Users\Admin\AppData\Local\Temp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.exe"

C:\Users\Admin\AppData\Local\Temp\is-ONT3A.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp

"C:\Users\Admin\AppData\Local\Temp\is-ONT3A.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp" /SL5="$40234,4807771,54272,C:\Users\Admin\AppData\Local\Temp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.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
RU 152.89.198.214:53 ejiwibh.ua udp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
RU 152.89.198.214:53 ejiwibh.ua udp
LT 91.211.247.248:53 ejiwibh.ua udp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp

Files

memory/3920-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3920-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-ONT3A.tmp\d4f2f9fe075c311ef5099232f47eb663de57d55725d22a3c4349d64855befc15.tmp

MD5 b9936ad678f4594b574641d0dca651b0
SHA1 be5a1cb9c1263eba95da8d68ccc8f3e060447622
SHA256 94f2edfd8217a17a10957ecb6b31195b00f1e426b09463505060cb655ee00f39
SHA512 c3e851c021c8c9ab1ff86dba6749a42a823a3ceaf5b18461ffe20a372fd3ea81a76f460cac4e6b803c0e17005ccbdd82c34cd96c5be3dd0aa996d00280f51ee7

C:\Users\Admin\AppData\Local\Temp\is-7296T.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

memory/2920-13-0x0000000000400000-0x00000000004BA000-memory.dmp

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

MD5 c9abc74836003c1758dbbabc05384ff3
SHA1 75a97608e3d06cf3036dba06205dde6660149e5b
SHA256 b8630de3bb58c588abe12c24b8612180a29112439539d5b38d6115f561098d60
SHA512 5bd4e07a668db623441e83cd5589613aa6cc4ad107ed0b4524f95b9ac63269d20558a0a1cb27f00b070d41edb19822910dc36499d6626af8d237c51695532348

memory/2228-59-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2228-60-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2228-65-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2228-64-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4376-68-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3920-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2920-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/4376-71-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4376-74-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4376-77-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4376-80-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4376-83-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4376-84-0x0000000000910000-0x00000000009B2000-memory.dmp

memory/4376-89-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4376-94-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4376-97-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4376-100-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4376-103-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4376-106-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4376-109-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4376-112-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4376-115-0x0000000000400000-0x00000000006C8000-memory.dmp