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

buwoyek.com

http://buwoyek.com/search/?q=67e28dd86f54a728120ffa1d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f771ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f88ff11c8e991

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2596-92-0x00000000022C0000-0x0000000002362000-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

2376 6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp
2212 moonvoiceassist32_64.exe
2596 moonvoiceassist32_64.exe

pid	process
2376	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp
2212	moonvoiceassist32_64.exe
2596	moonvoiceassist32_64.exe

Loads dropped DLL 5 IoCs

Processes:

6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.exe6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp

pid	process
2124	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.exe
2376	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp
2376	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp
2376	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp
2376	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp

Unexpected DNS network traffic destination 1 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
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

2376 6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp

description	ioc
Destination IP	152.89.198.214

pid	process
2376	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.exe6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp

description	pid	process	target process
PID 2124 wrote to memory of 2376	2124	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.exe	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp
PID 2124 wrote to memory of 2376	2124	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.exe	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp
PID 2124 wrote to memory of 2376	2124	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.exe	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp
PID 2124 wrote to memory of 2376	2124	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.exe	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp
PID 2124 wrote to memory of 2376	2124	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.exe	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp
PID 2124 wrote to memory of 2376	2124	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.exe	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp
PID 2124 wrote to memory of 2376	2124	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.exe	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp
PID 2376 wrote to memory of 2212	2376	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp	moonvoiceassist32_64.exe
PID 2376 wrote to memory of 2212	2376	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp	moonvoiceassist32_64.exe
PID 2376 wrote to memory of 2212	2376	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp	moonvoiceassist32_64.exe
PID 2376 wrote to memory of 2212	2376	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp	moonvoiceassist32_64.exe
PID 2376 wrote to memory of 2596	2376	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp	moonvoiceassist32_64.exe
PID 2376 wrote to memory of 2596	2376	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp	moonvoiceassist32_64.exe
PID 2376 wrote to memory of 2596	2376	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp	moonvoiceassist32_64.exe
PID 2376 wrote to memory of 2596	2376	6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp	moonvoiceassist32_64.exe

C:\Users\Admin\AppData\Local\Temp\6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.exe
"C:\Users\Admin\AppData\Local\Temp\6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2124

C:\Users\Admin\AppData\Local\Temp\is-8K583.tmp\6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp
"C:\Users\Admin\AppData\Local\Temp\is-8K583.tmp\6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp" /SL5="$40150,4987691,54272,C:\Users\Admin\AppData\Local\Temp\6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2376

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:2212

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:2596

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe
Filesize
3.1MB

MD5
4b8bf546964b9144a1f9cddd8eb7edda

SHA1
3b554ff65c57a117983bec5ee5622bd2d5149f72

SHA256
f473e894fde6a5b494d4763981887d44fd3ed60d726eb26b059845312fedfb66

SHA512
114b1493bc1a7fd243ef9854db271193d8df16a2519096848fa5f6a1083ec98aadbf3ffe43a8c06528778ef246337eab92dbbf6af252eae5bfaf0887c72b6a35

Download Submit
\Users\Admin\AppData\Local\Temp\is-8K583.tmp\6eebb5c45ac6b33dc01ea42855aa3576c6b8b4e4f79d9a4b8072435f784c8f9d.tmp
Filesize
680KB

MD5
895d982b558dbe81e0d8d31e818f766e

SHA1
27d9e61b8edaf48db4c519be05f0f4ea33900a7a

SHA256
3c0328c6c8c37a3e81cb28c46eeb4c98f033eaf28326903ac6e7204d23928cfb

SHA512
4ab3f51fe1f4b7ce5bd6e21518de1ebae7b631bb4a968a424efff6db1a53755853478db108547492a2784c55f1d934f776388232f556880f682e401c45b7db97

Download Submit
\Users\Admin\AppData\Local\Temp\is-R3AKO.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-R3AKO.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/2124-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2124-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2124-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2212-66-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/2212-69-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/2212-65-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/2376-64-0x00000000041C0000-0x00000000044E1000-memory.dmp

Filesize
3.1MB

Download
memory/2376-79-0x00000000041C0000-0x00000000044E1000-memory.dmp

Filesize
3.1MB

Download
memory/2376-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2376-74-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2596-78-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/2596-107-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/2596-71-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/2596-82-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/2596-85-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/2596-88-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/2596-91-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/2596-92-0x00000000022C0000-0x0000000002362000-memory.dmp

Filesize
648KB

Download
memory/2596-98-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/2596-101-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/2596-104-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/2596-75-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/2596-110-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/2596-113-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/2596-117-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/2596-120-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/2596-123-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/2596-126-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/2596-129-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/2596-132-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/2596-137-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads