socks5systemz | 6992d4843ce379904d4662fb9c3ab27238a77a547152e51b14be93e30a804776

General

Target

6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.exe
Size

5.0MB
MD5

bf46096f503cf0646b2c10b35314198d
SHA1

8424f8aa14259c1c2799c923524d911e2643e60e
SHA256

6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753
SHA512

1032964ef54d635ab3b4f885d4c0863f8ecdd6a511f40e568f0002f901b707ef35d1427990b1c5e002c9fba4f77d701e0245b8b217cad944deb922194190c5aa
SSDEEP

98304:mipB02MM+0mSejnGC3Ip83nTGFR8JpMp0AaduZ2c3QSy5iEYDKZZ4YCKe:D02V+0mbJp3jdU2cAljYD84Ys

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

cedlowu.net

http://cedlowu.net/search/?q=67e28dd86e09a721465dff1c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa44e8889b5e4fa9281ae978f771ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff715c1e6909d3e

http://cedlowu.net/search/?q=67e28dd86e09a721465dff1c7c27d78406abdd88be4b12eab517aa5c96bd86ec958f4d885a8bbc896c58e713bc90c91136b5281fc235a925ed3e54d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9d9e3ac46a9113

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4076-86-0x0000000000950000-0x00000000009F2000-memory.dmp	family_socks5systemz
behavioral2/memory/4076-110-0x0000000000950000-0x00000000009F2000-memory.dmp	family_socks5systemz
behavioral2/memory/4076-109-0x0000000000950000-0x00000000009F2000-memory.dmp	family_socks5systemz

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

Processes:

6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.tmpmoonvoiceassist32_64.exemoonvoiceassist32_64.exe

pid process

2224 6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.tmp
3960 moonvoiceassist32_64.exe
4076 moonvoiceassist32_64.exe
Loads dropped DLL 1 IoCs

Processes:

6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.tmp

pid process

2224 6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.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 141.98.234.31
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:

6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.tmp

pid process

2224 6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.tmp

pid	process
2224	6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.tmp
3960	moonvoiceassist32_64.exe
4076	moonvoiceassist32_64.exe

pid	process
2224	6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.tmp

description	ioc
Destination IP	141.98.234.31

pid	process
2224	6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.exe6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.tmp

description	pid	process	target process
PID 3672 wrote to memory of 2224	3672	6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.exe	6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.tmp
PID 3672 wrote to memory of 2224	3672	6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.exe	6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.tmp
PID 3672 wrote to memory of 2224	3672	6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.exe	6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.tmp
PID 2224 wrote to memory of 3960	2224	6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.tmp	moonvoiceassist32_64.exe
PID 2224 wrote to memory of 3960	2224	6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.tmp	moonvoiceassist32_64.exe
PID 2224 wrote to memory of 3960	2224	6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.tmp	moonvoiceassist32_64.exe
PID 2224 wrote to memory of 4076	2224	6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.tmp	moonvoiceassist32_64.exe
PID 2224 wrote to memory of 4076	2224	6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.tmp	moonvoiceassist32_64.exe
PID 2224 wrote to memory of 4076	2224	6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.tmp	moonvoiceassist32_64.exe

C:\Users\Admin\AppData\Local\Temp\6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.exe
"C:\Users\Admin\AppData\Local\Temp\6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3672

C:\Users\Admin\AppData\Local\Temp\is-P7CQB.tmp\6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.tmp
"C:\Users\Admin\AppData\Local\Temp\is-P7CQB.tmp\6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.tmp" /SL5="$401DC,4962455,54272,C:\Users\Admin\AppData\Local\Temp\6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2224

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:3960

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:4076

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

Replay Monitor

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Downloads

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

MD5
6b238834d1e205673070964febf778ce

SHA1
00dabc6599af66aa83053b4fac1931dbfa0c3f67

SHA256
7596bbe3ad006de916434fd564f5b94f8e9e01c691cbfb2cdd5c7436bbe4d7d0

SHA512
b603779911a15073e9234f891750dac4c3c67739b500c62b14c686520562ba77c32250d12aaf3e78c50d480fcca4233f76da44da38606d7f2759ec43ff2eb4bc

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-K8L95.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-P7CQB.tmp\6cb361b6d9f4eed70fbeb3a482a70d8cabce818b17b3a710c00545a1e7cde753.tmp
Filesize
680KB

MD5
895d982b558dbe81e0d8d31e818f766e

SHA1
27d9e61b8edaf48db4c519be05f0f4ea33900a7a

SHA256
3c0328c6c8c37a3e81cb28c46eeb4c98f033eaf28326903ac6e7204d23928cfb

SHA512
4ab3f51fe1f4b7ce5bd6e21518de1ebae7b631bb4a968a424efff6db1a53755853478db108547492a2784c55f1d934f776388232f556880f682e401c45b7db97

Download Submit
memory/2224-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2224-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3672-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3672-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3672-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3960-59-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/3960-60-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/3960-64-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/3960-65-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4076-74-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4076-96-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4076-68-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4076-77-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4076-80-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4076-83-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4076-86-0x0000000000950000-0x00000000009F2000-memory.dmp

Filesize
648KB

Download
memory/4076-90-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4076-93-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4076-71-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4076-99-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4076-102-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4076-105-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4076-108-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4076-110-0x0000000000950000-0x00000000009F2000-memory.dmp

Filesize
648KB

Download
memory/4076-109-0x0000000000950000-0x00000000009F2000-memory.dmp

Filesize
648KB

Download
memory/4076-114-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/4076-117-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download

Analysis

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