Malware Analysis Report

2024-11-15 05:01

Sample ID 240530-yzhjyshb6v
Target b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192
SHA256 b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192
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

b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192

Threat Level: Known bad

The file b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192 was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Detect Socks5Systemz Payload

Socks5Systemz

Loads dropped DLL

Unexpected DNS network traffic destination

Executes dropped EXE

Checks installed software on the system

Unsigned PE

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-30 20:13

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-30 20:13

Reported

2024-05-30 20:15

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.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

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-J1N37.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 996 wrote to memory of 4924 N/A C:\Users\Admin\AppData\Local\Temp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.exe C:\Users\Admin\AppData\Local\Temp\is-J1N37.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp
PID 996 wrote to memory of 4924 N/A C:\Users\Admin\AppData\Local\Temp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.exe C:\Users\Admin\AppData\Local\Temp\is-J1N37.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp
PID 996 wrote to memory of 4924 N/A C:\Users\Admin\AppData\Local\Temp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.exe C:\Users\Admin\AppData\Local\Temp\is-J1N37.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp
PID 4924 wrote to memory of 1820 N/A C:\Users\Admin\AppData\Local\Temp\is-J1N37.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4924 wrote to memory of 1820 N/A C:\Users\Admin\AppData\Local\Temp\is-J1N37.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4924 wrote to memory of 1820 N/A C:\Users\Admin\AppData\Local\Temp\is-J1N37.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4924 wrote to memory of 4352 N/A C:\Users\Admin\AppData\Local\Temp\is-J1N37.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4924 wrote to memory of 4352 N/A C:\Users\Admin\AppData\Local\Temp\is-J1N37.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4924 wrote to memory of 4352 N/A C:\Users\Admin\AppData\Local\Temp\is-J1N37.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.exe

"C:\Users\Admin\AppData\Local\Temp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.exe"

C:\Users\Admin\AppData\Local\Temp\is-J1N37.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp

"C:\Users\Admin\AppData\Local\Temp\is-J1N37.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp" /SL5="$600E0,5704937,54272,C:\Users\Admin\AppData\Local\Temp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.exe"

C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -i

C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -s

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
BE 2.17.196.115:443 www.bing.com tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 115.196.17.2.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
LT 91.211.247.248:53 ebfnedl.ua udp
BG 79.110.49.184:80 ebfnedl.ua tcp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp
BG 79.110.49.184:80 ebfnedl.ua tcp
US 8.8.8.8:53 8.179.89.13.in-addr.arpa udp
BG 79.110.49.184:80 ebfnedl.ua tcp

Files

memory/996-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/996-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-J1N37.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp

MD5 ef9105d68de970efad785e01b21e4e2b
SHA1 7fe8801a3e86814972da63a7a943bdc5e31d8888
SHA256 381198ca0669ab760f6f9b84e39c39ab5e870f65d17d03ed0dc572a1c602364a
SHA512 e388cbf32a4d833c0e4c6c1a129515b4d12eac5b333f2aec39e741d3a0da856c5923d47cf4d3083ad030f7f07b9214261b2b9119720920dd42929eeb617e779c

memory/4924-10-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-EURI7.tmp\_isetup\_isdecmp.dll

MD5 b6f11a0ab7715f570f45900a1fe84732
SHA1 77b1201e535445af5ea94c1b03c0a1c34d67a77b
SHA256 e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67
SHA512 78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

C:\Users\Admin\AppData\Local\Temp\is-EURI7.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

MD5 e2ab429c85b87d157f0eb2fd76f22601
SHA1 09a84124c3a166d795f1584b3eeb1afeb6c485bc
SHA256 feef907dd8fc048a5aa02e6f7b50ba055f5fbbfba8954da1418ad45488489c19
SHA512 8562a43cc10aa4e210e55d97a7b26701d6cb39e86de5c63bbda6ac6bca831373fd54780c696fc42c337de2e930c8815b3ab2b1b6893087c7a0600b3fc831e4d4

memory/1820-65-0x0000000000400000-0x0000000000763000-memory.dmp

memory/1820-66-0x0000000000400000-0x0000000000763000-memory.dmp

memory/1820-68-0x0000000000400000-0x0000000000763000-memory.dmp

memory/1820-71-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4352-74-0x0000000000400000-0x0000000000763000-memory.dmp

memory/996-75-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4924-76-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/4352-77-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4352-80-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4352-83-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4352-86-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4352-89-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4352-92-0x0000000002580000-0x0000000002622000-memory.dmp

memory/4352-94-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4352-100-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4352-103-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4352-106-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4352-109-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4352-112-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4352-115-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4352-118-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4352-121-0x0000000000400000-0x0000000000763000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-30 20:13

Reported

2024-05-30 20:15

Platform

win11-20240426-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.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-TDSLP.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4856 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.exe C:\Users\Admin\AppData\Local\Temp\is-TDSLP.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp
PID 4856 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.exe C:\Users\Admin\AppData\Local\Temp\is-TDSLP.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp
PID 4856 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.exe C:\Users\Admin\AppData\Local\Temp\is-TDSLP.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp
PID 3036 wrote to memory of 4400 N/A C:\Users\Admin\AppData\Local\Temp\is-TDSLP.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3036 wrote to memory of 4400 N/A C:\Users\Admin\AppData\Local\Temp\is-TDSLP.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3036 wrote to memory of 4400 N/A C:\Users\Admin\AppData\Local\Temp\is-TDSLP.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3036 wrote to memory of 4032 N/A C:\Users\Admin\AppData\Local\Temp\is-TDSLP.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3036 wrote to memory of 4032 N/A C:\Users\Admin\AppData\Local\Temp\is-TDSLP.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3036 wrote to memory of 4032 N/A C:\Users\Admin\AppData\Local\Temp\is-TDSLP.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.exe

"C:\Users\Admin\AppData\Local\Temp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.exe"

C:\Users\Admin\AppData\Local\Temp\is-TDSLP.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp

"C:\Users\Admin\AppData\Local\Temp\is-TDSLP.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp" /SL5="$501A2,5704937,54272,C:\Users\Admin\AppData\Local\Temp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.exe"

C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -i

C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -s

Network

Country Destination Domain Proto
HK 141.98.234.31:53 ceguivd.net udp
BG 79.110.49.184:80 ceguivd.net tcp
BG 79.110.49.184:80 ceguivd.net tcp
BG 79.110.49.184:80 ceguivd.net tcp

Files

memory/4856-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4856-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-TDSLP.tmp\b0e745a97bce6d27c5cbea7ad0d1919f3c08ad37f73281a4666ef3c0d36ac192.tmp

MD5 ef9105d68de970efad785e01b21e4e2b
SHA1 7fe8801a3e86814972da63a7a943bdc5e31d8888
SHA256 381198ca0669ab760f6f9b84e39c39ab5e870f65d17d03ed0dc572a1c602364a
SHA512 e388cbf32a4d833c0e4c6c1a129515b4d12eac5b333f2aec39e741d3a0da856c5923d47cf4d3083ad030f7f07b9214261b2b9119720920dd42929eeb617e779c

memory/3036-10-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-QUGT6.tmp\_isetup\_isdecmp.dll

MD5 b6f11a0ab7715f570f45900a1fe84732
SHA1 77b1201e535445af5ea94c1b03c0a1c34d67a77b
SHA256 e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67
SHA512 78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

C:\Users\Admin\AppData\Local\Temp\is-QUGT6.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

MD5 e2ab429c85b87d157f0eb2fd76f22601
SHA1 09a84124c3a166d795f1584b3eeb1afeb6c485bc
SHA256 feef907dd8fc048a5aa02e6f7b50ba055f5fbbfba8954da1418ad45488489c19
SHA512 8562a43cc10aa4e210e55d97a7b26701d6cb39e86de5c63bbda6ac6bca831373fd54780c696fc42c337de2e930c8815b3ab2b1b6893087c7a0600b3fc831e4d4

memory/4400-65-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4400-69-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4400-71-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4032-73-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4400-67-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4032-75-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4856-76-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3036-77-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/4032-78-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4032-81-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4032-82-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4032-85-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4032-88-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4032-91-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4032-92-0x0000000000AC0000-0x0000000000B62000-memory.dmp

memory/4032-96-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4032-102-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4032-105-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4032-108-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4032-111-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4032-114-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4032-117-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4032-120-0x0000000000400000-0x0000000000763000-memory.dmp

memory/4032-123-0x0000000000400000-0x0000000000763000-memory.dmp