socks5systemz | 9f4ded47ad471f289873af93e79832ed454b13a20b3d3bb54ccc7e48f040c201

General

Target

a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.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

aikneze.ru

http://aikneze.ru/search/?q=67e28dd86f08f27d120eff4b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa1fe8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff715c1eb939f3e

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2332-85-0x0000000002580000-0x0000000002622000-memory.dmp	family_socks5systemz

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

Processes:

a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmpmoonvoiceassist32_64.exemoonvoiceassist32_64.exe

pid process

436 a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp
2632 moonvoiceassist32_64.exe
2332 moonvoiceassist32_64.exe
Loads dropped DLL 1 IoCs

Processes:

a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp

pid process

436 a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.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:

a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp

pid process

436 a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp

pid	process
436	a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp
2632	moonvoiceassist32_64.exe
2332	moonvoiceassist32_64.exe

pid	process
436	a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp

description	ioc
Destination IP	141.98.234.31

pid	process
436	a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.exea8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp

description	pid	process	target process
PID 2196 wrote to memory of 436	2196	a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.exe	a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp
PID 2196 wrote to memory of 436	2196	a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.exe	a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp
PID 2196 wrote to memory of 436	2196	a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.exe	a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp
PID 436 wrote to memory of 2632	436	a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp	moonvoiceassist32_64.exe
PID 436 wrote to memory of 2632	436	a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp	moonvoiceassist32_64.exe
PID 436 wrote to memory of 2632	436	a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp	moonvoiceassist32_64.exe
PID 436 wrote to memory of 2332	436	a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp	moonvoiceassist32_64.exe
PID 436 wrote to memory of 2332	436	a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp	moonvoiceassist32_64.exe
PID 436 wrote to memory of 2332	436	a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp	moonvoiceassist32_64.exe

C:\Users\Admin\AppData\Local\Temp\a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.exe
"C:\Users\Admin\AppData\Local\Temp\a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2196

C:\Users\Admin\AppData\Local\Temp\is-MIVUD.tmp\a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp
"C:\Users\Admin\AppData\Local\Temp\is-MIVUD.tmp\a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp" /SL5="$90052,4960850,54272,C:\Users\Admin\AppData\Local\Temp\a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:436

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:2632

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:2332

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
03ac3f038f52abf9466e523422975a72

SHA1
7b2e8607b4146c99ca42338f1dc5fd8b3b64a400

SHA256
99089239e81bb6bf90e64eb24be607e618e62c5d56aba974608d1e721a1256c9

SHA512
16e2ae19b75d47b2dd30899a947aa7bd7ef2d039897aa3db4bcee868c7824c3d936dc16575a733b80b1c8024ce8eddd27e04b32066fa2c0e3eb45c03f7c84f0d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-29O1C.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-MIVUD.tmp\a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp
Filesize
680KB

MD5
895d982b558dbe81e0d8d31e818f766e

SHA1
27d9e61b8edaf48db4c519be05f0f4ea33900a7a

SHA256
3c0328c6c8c37a3e81cb28c46eeb4c98f033eaf28326903ac6e7204d23928cfb

SHA512
4ab3f51fe1f4b7ce5bd6e21518de1ebae7b631bb4a968a424efff6db1a53755853478db108547492a2784c55f1d934f776388232f556880f682e401c45b7db97

Download Submit
memory/436-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/436-69-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2196-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2196-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2196-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2332-95-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2332-82-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2332-114-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2332-111-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2332-107-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2332-70-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2332-73-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2332-76-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2332-79-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2332-67-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2332-85-0x0000000002580000-0x0000000002622000-memory.dmp

Filesize
648KB

Download
memory/2332-89-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2332-92-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2332-104-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2332-98-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2332-101-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2632-59-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2632-60-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2632-63-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2632-64-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download

Analysis

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