socks5systemz | e3d345475964b57f7b8afcce3082e33bc23eddf7e290ab44062ab9da8134c72e

General

Target

e3d345475964b57f7b8afcce3082e33bc23eddf7e290ab44062ab9da8134c72e.exe
Size

5.6MB
MD5

561248aaa7cb2dfb45e0eadcbd5371f2
SHA1

cf3658701a282674bcef0bf0126cb23190ae4831
SHA256

e3d345475964b57f7b8afcce3082e33bc23eddf7e290ab44062ab9da8134c72e
SHA512

29cd4ad8872d06b630712982c06a298f0fd6c8307191cf8f5309cb8566e7008911d2073a752729a0bd111c815231c65ed44d5054ecb10d25497f98bc354aae7a
SSDEEP

98304:m4rtI3FrMy6bAHUaW1pN+OCej2YVC0GTOwoSBn+ADW3tt2w9G3ng41/epgb1kcF:JtI1DEp1pN+cyYVC7oA+8CX2wY3ng4pR

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bozuohu.com

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3344-92-0x0000000002510000-0x00000000025B2000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz

Executes dropped EXE 3 IoCs

pid	Process
4688	e3d345475964b57f7b8afcce3082e33bc23eddf7e290ab44062ab9da8134c72e.tmp
4640	svomediaplayer.exe
3344	svomediaplayer.exe

Loads dropped DLL 3 IoCs

pid	Process
4688	e3d345475964b57f7b8afcce3082e33bc23eddf7e290ab44062ab9da8134c72e.tmp
4688	e3d345475964b57f7b8afcce3082e33bc23eddf7e290ab44062ab9da8134c72e.tmp
4688	e3d345475964b57f7b8afcce3082e33bc23eddf7e290ab44062ab9da8134c72e.tmp

Unexpected DNS network traffic destination 3 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	152.89.198.214
Destination IP	91.211.247.248
Destination IP	91.211.247.248

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4688	e3d345475964b57f7b8afcce3082e33bc23eddf7e290ab44062ab9da8134c72e.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3288 wrote to memory of 4688	3288	e3d345475964b57f7b8afcce3082e33bc23eddf7e290ab44062ab9da8134c72e.exe	81
PID 3288 wrote to memory of 4688	3288	e3d345475964b57f7b8afcce3082e33bc23eddf7e290ab44062ab9da8134c72e.exe	81
PID 3288 wrote to memory of 4688	3288	e3d345475964b57f7b8afcce3082e33bc23eddf7e290ab44062ab9da8134c72e.exe	81
PID 4688 wrote to memory of 4640	4688	e3d345475964b57f7b8afcce3082e33bc23eddf7e290ab44062ab9da8134c72e.tmp	82
PID 4688 wrote to memory of 4640	4688	e3d345475964b57f7b8afcce3082e33bc23eddf7e290ab44062ab9da8134c72e.tmp	82
PID 4688 wrote to memory of 4640	4688	e3d345475964b57f7b8afcce3082e33bc23eddf7e290ab44062ab9da8134c72e.tmp	82
PID 4688 wrote to memory of 3344	4688	e3d345475964b57f7b8afcce3082e33bc23eddf7e290ab44062ab9da8134c72e.tmp	83
PID 4688 wrote to memory of 3344	4688	e3d345475964b57f7b8afcce3082e33bc23eddf7e290ab44062ab9da8134c72e.tmp	83
PID 4688 wrote to memory of 3344	4688	e3d345475964b57f7b8afcce3082e33bc23eddf7e290ab44062ab9da8134c72e.tmp	83

C:\Users\Admin\AppData\Local\Temp\e3d345475964b57f7b8afcce3082e33bc23eddf7e290ab44062ab9da8134c72e.exe
"C:\Users\Admin\AppData\Local\Temp\e3d345475964b57f7b8afcce3082e33bc23eddf7e290ab44062ab9da8134c72e.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3288
- C:\Users\Admin\AppData\Local\Temp\is-EE53E.tmp\e3d345475964b57f7b8afcce3082e33bc23eddf7e290ab44062ab9da8134c72e.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-EE53E.tmp\e3d345475964b57f7b8afcce3082e33bc23eddf7e290ab44062ab9da8134c72e.tmp" /SL5="$4020E,5639062,54272,C:\Users\Admin\AppData\Local\Temp\e3d345475964b57f7b8afcce3082e33bc23eddf7e290ab44062ab9da8134c72e.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4688
- - C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe
    "C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe" -i
    3⤵
    - Executes dropped EXE
    PID:4640
- - C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe
    "C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe" -s
    3⤵
    - Executes dropped EXE
    PID:3344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe

Filesize
3.0MB

MD5
053291c12720c20471fd8ab1053d80ea

SHA1
5dec4be200a27bce9f37b20864fbd772ecbebab2

SHA256
9caa6951960e970a142d0ec39a8cad98d6d36d4fb1b9ac71791c3d0b1dba4d52

SHA512
d0593237f96fbb40f4cfcacfc6619001ac2c7a213658c79b20a14c7a6ea06a857a3714166c0fcc9888e5039aecc13927cfa61c3736d013de13b939f3c4a45c8f

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-EE53E.tmp\e3d345475964b57f7b8afcce3082e33bc23eddf7e290ab44062ab9da8134c72e.tmp

Filesize
680KB

MD5
548dec969992f3e928d7c5bcf6dbeccf

SHA1
f4da2c90b95749fbb89e1a16f55719078cb128aa

SHA256
9a883c56e3cd5e476c9baa539c1b5d0e877dfade2714040c84ed5f098665b768

SHA512
e3980bb2bc9a9146c37bae8c60e80bc5fa164cd767fad3c046046d1517ca24780191ab98526bc94392d6a55fa486ef77857359eadef0466c6abf2b42dcec4321

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-R51EK.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-R51EK.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
memory/3288-75-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3288-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3288-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3344-99-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/3344-105-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/3344-120-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/3344-74-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/3344-117-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/3344-114-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/3344-111-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/3344-77-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/3344-80-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/3344-83-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/3344-86-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/3344-89-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/3344-92-0x0000000002510000-0x00000000025B2000-memory.dmp

Filesize
648KB

Download
memory/3344-96-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/3344-108-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/3344-102-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/4640-66-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/4640-65-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/4640-70-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/4640-71-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/4688-15-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4688-76-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

Sharing