socks5systemz | 6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d

General

Target

6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.exe
Size

5.0MB
MD5

9d49728f6ad7dddba3049c97c40ed1a0
SHA1

437095acdd37976bf0f1ad66e4c5c3c36791742c
SHA256

6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d
SHA512

414efb20419bfbcc1d0982fbd1a90695e6e13a58f677e9e79ec63a81f87890edffd26444e8d447a8aa98ba3cad893e6c3070d229722bc1931d4c699e7b1008fc
SSDEEP

98304:mq7tEbnTA9LmrUFAsOXmyzSMqJrhSAS9OLLwVD+CTYV1JEWY6e:f7tEnTwxAtXmR1J7hkF+CmO3

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

buovuzv.com

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4296-85-0x0000000000A70000-0x0000000000B12000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Executes dropped EXE 3 IoCs

Processes:

6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmpmoonvoiceassist32_64.exemoonvoiceassist32_64.exe

pid process

1560 6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp
1464 moonvoiceassist32_64.exe
4296 moonvoiceassist32_64.exe
Loads dropped DLL 1 IoCs

Processes:

6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp

pid process

1560 6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp
Unexpected DNS network traffic destination 3 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

description ioc

Destination IP 152.89.198.214
Destination IP 91.211.247.248
Destination IP 152.89.198.214
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

Processes:

6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp

pid process

1560 6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp

pid	process
1560	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp
1464	moonvoiceassist32_64.exe
4296	moonvoiceassist32_64.exe

pid	process
1560	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp

description	ioc
Destination IP	152.89.198.214
Destination IP	91.211.247.248
Destination IP	152.89.198.214

pid	process
1560	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.exe6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp

description	pid	process	target process
PID 992 wrote to memory of 1560	992	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.exe	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp
PID 992 wrote to memory of 1560	992	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.exe	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp
PID 992 wrote to memory of 1560	992	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.exe	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp
PID 1560 wrote to memory of 1464	1560	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp	moonvoiceassist32_64.exe
PID 1560 wrote to memory of 1464	1560	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp	moonvoiceassist32_64.exe
PID 1560 wrote to memory of 1464	1560	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp	moonvoiceassist32_64.exe
PID 1560 wrote to memory of 4296	1560	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp	moonvoiceassist32_64.exe
PID 1560 wrote to memory of 4296	1560	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp	moonvoiceassist32_64.exe
PID 1560 wrote to memory of 4296	1560	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp	moonvoiceassist32_64.exe

C:\Users\Admin\AppData\Local\Temp\6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.exe
"C:\Users\Admin\AppData\Local\Temp\6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:992

C:\Users\Admin\AppData\Local\Temp\is-QMPVK.tmp\6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp
"C:\Users\Admin\AppData\Local\Temp\is-QMPVK.tmp\6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp" /SL5="$4021A,4987691,54272,C:\Users\Admin\AppData\Local\Temp\6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1560

C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe
"C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe" -i
3⤵
- Executes dropped EXE
PID:1464

C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe
"C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe" -s
3⤵
- Executes dropped EXE
PID:4296

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\Moon Voice Assist\moonvoiceassist32_64.exe
Filesize
3.1MB

MD5
4b8bf546964b9144a1f9cddd8eb7edda

SHA1
3b554ff65c57a117983bec5ee5622bd2d5149f72

SHA256
f473e894fde6a5b494d4763981887d44fd3ed60d726eb26b059845312fedfb66

SHA512
114b1493bc1a7fd243ef9854db271193d8df16a2519096848fa5f6a1083ec98aadbf3ffe43a8c06528778ef246337eab92dbbf6af252eae5bfaf0887c72b6a35

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-95EB8.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-QMPVK.tmp\6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp
Filesize
680KB

MD5
895d982b558dbe81e0d8d31e818f766e

SHA1
27d9e61b8edaf48db4c519be05f0f4ea33900a7a

SHA256
3c0328c6c8c37a3e81cb28c46eeb4c98f033eaf28326903ac6e7204d23928cfb

SHA512
4ab3f51fe1f4b7ce5bd6e21518de1ebae7b631bb4a968a424efff6db1a53755853478db108547492a2784c55f1d934f776388232f556880f682e401c45b7db97

Download Submit
memory/992-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/992-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/992-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1464-59-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/1464-60-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/1464-63-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/1464-64-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/1560-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1560-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4296-71-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4296-88-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4296-67-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4296-73-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4296-75-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4296-78-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4296-81-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4296-84-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4296-85-0x0000000000A70000-0x0000000000B12000-memory.dmp

Filesize
648KB

Download
memory/4296-68-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4296-94-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4296-97-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4296-100-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4296-103-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4296-106-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4296-109-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4296-112-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4296-115-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download

Analysis

Sharing