socks5systemz | a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47

General

Target

625d7a7df7da834917c9ff4fda2b072c.exe
Size

5.0MB
MD5

625d7a7df7da834917c9ff4fda2b072c
SHA1

a1b24e2455e4b41775c8d15cdc9ea83fdf4c59db
SHA256

a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47
SHA512

701dd59a7d49ff480d688d4cdfc8188de5562de0a3bd47233d1e8a753cdb527905fea2e1d0df3435f558c6b919aa68e77fc7c3324654ae039b6aa45d16fed5b9
SSDEEP

98304:mmm+YCvQZ96G+QmV/pqfKhk7MasvtbHtkBw3f6PYDTU8o8BQzyVfOrE2vSle:dYCv4MfVoIk7Masvt4wCYDDoGWSA

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

ejewdoo.ua

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2208-85-0x0000000000AA0000-0x0000000000B42000-memory.dmp	family_socks5systemz

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

Processes:

625d7a7df7da834917c9ff4fda2b072c.tmpmoonvoiceassist32_64.exemoonvoiceassist32_64.exe

pid process

4824 625d7a7df7da834917c9ff4fda2b072c.tmp
2560 moonvoiceassist32_64.exe
2208 moonvoiceassist32_64.exe
Loads dropped DLL 1 IoCs

Processes:

625d7a7df7da834917c9ff4fda2b072c.tmp

pid process

4824 625d7a7df7da834917c9ff4fda2b072c.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 45.155.250.90
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:

625d7a7df7da834917c9ff4fda2b072c.tmp

pid process

4824 625d7a7df7da834917c9ff4fda2b072c.tmp

pid	process
4824	625d7a7df7da834917c9ff4fda2b072c.tmp
2560	moonvoiceassist32_64.exe
2208	moonvoiceassist32_64.exe

pid	process
4824	625d7a7df7da834917c9ff4fda2b072c.tmp

description	ioc
Destination IP	45.155.250.90
Destination IP	91.211.247.248
Destination IP	152.89.198.214

pid	process
4824	625d7a7df7da834917c9ff4fda2b072c.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

625d7a7df7da834917c9ff4fda2b072c.exe625d7a7df7da834917c9ff4fda2b072c.tmp

description	pid	process	target process
PID 852 wrote to memory of 4824	852	625d7a7df7da834917c9ff4fda2b072c.exe	625d7a7df7da834917c9ff4fda2b072c.tmp
PID 852 wrote to memory of 4824	852	625d7a7df7da834917c9ff4fda2b072c.exe	625d7a7df7da834917c9ff4fda2b072c.tmp
PID 852 wrote to memory of 4824	852	625d7a7df7da834917c9ff4fda2b072c.exe	625d7a7df7da834917c9ff4fda2b072c.tmp
PID 4824 wrote to memory of 2560	4824	625d7a7df7da834917c9ff4fda2b072c.tmp	moonvoiceassist32_64.exe
PID 4824 wrote to memory of 2560	4824	625d7a7df7da834917c9ff4fda2b072c.tmp	moonvoiceassist32_64.exe
PID 4824 wrote to memory of 2560	4824	625d7a7df7da834917c9ff4fda2b072c.tmp	moonvoiceassist32_64.exe
PID 4824 wrote to memory of 2208	4824	625d7a7df7da834917c9ff4fda2b072c.tmp	moonvoiceassist32_64.exe
PID 4824 wrote to memory of 2208	4824	625d7a7df7da834917c9ff4fda2b072c.tmp	moonvoiceassist32_64.exe
PID 4824 wrote to memory of 2208	4824	625d7a7df7da834917c9ff4fda2b072c.tmp	moonvoiceassist32_64.exe

C:\Users\Admin\AppData\Local\Temp\625d7a7df7da834917c9ff4fda2b072c.exe
"C:\Users\Admin\AppData\Local\Temp\625d7a7df7da834917c9ff4fda2b072c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:852

C:\Users\Admin\AppData\Local\Temp\is-0K1T0.tmp\625d7a7df7da834917c9ff4fda2b072c.tmp
"C:\Users\Admin\AppData\Local\Temp\is-0K1T0.tmp\625d7a7df7da834917c9ff4fda2b072c.tmp" /SL5="$6011C,4960850,54272,C:\Users\Admin\AppData\Local\Temp\625d7a7df7da834917c9ff4fda2b072c.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4824

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:2560

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:2208

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

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Downloads

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

MD5
03ac3f038f52abf9466e523422975a72

SHA1
7b2e8607b4146c99ca42338f1dc5fd8b3b64a400

SHA256
99089239e81bb6bf90e64eb24be607e618e62c5d56aba974608d1e721a1256c9

SHA512
16e2ae19b75d47b2dd30899a947aa7bd7ef2d039897aa3db4bcee868c7824c3d936dc16575a733b80b1c8024ce8eddd27e04b32066fa2c0e3eb45c03f7c84f0d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-0K1T0.tmp\625d7a7df7da834917c9ff4fda2b072c.tmp
Filesize
680KB

MD5
895d982b558dbe81e0d8d31e818f766e

SHA1
27d9e61b8edaf48db4c519be05f0f4ea33900a7a

SHA256
3c0328c6c8c37a3e81cb28c46eeb4c98f033eaf28326903ac6e7204d23928cfb

SHA512
4ab3f51fe1f4b7ce5bd6e21518de1ebae7b631bb4a968a424efff6db1a53755853478db108547492a2784c55f1d934f776388232f556880f682e401c45b7db97

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

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/852-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/852-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/852-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2208-87-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2208-85-0x0000000000AA0000-0x0000000000B42000-memory.dmp

Filesize
648KB

Download
memory/2208-113-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2208-110-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2208-107-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2208-104-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2208-70-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2208-73-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2208-76-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2208-79-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2208-82-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2208-101-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2208-98-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2208-92-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2208-95-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2560-60-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2560-59-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2560-65-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2560-63-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/4824-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4824-69-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

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