socks5systemz | 29323084223141e3fe2113b091be460f48f380edda801529bd384fba8768e812

General

Target

7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.exe
Size

5.0MB
MD5

4fa524896f7acb979cb8900b03479272
SHA1

d051e47915937d64fb6fcd4a3640c345ad892a18
SHA256

7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0
SHA512

8ff818f1a2a3f149bc93d1ba6998a32e3985f1c0bc5ef9f60b2b19ee346982c85ec895db0e9195dd00635d5ce61d9de33e6b896d4ca7e0eab02be6e23b39743d
SSDEEP

98304:m+29v/40m11zG86IPCx1aB1XGLIxbPvEeQ2bwRwgJbwqaHoyMf3j3RDRe:bSv/4l1pz6laBYIJnPsag+qaHoFRD0

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bmyfzdb.com

http://bmyfzdb.com/search/?q=67e28dd83954f07a4008f8497c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ae8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff715c1eb939a3e

http://bmyfzdb.com/search/?q=67e28dd83954f07a4008f8497c27d78406abdd88be4b12eab517aa5c96bd86e895834c845a8bbc896c58e713bc90c91f36b5281fc235a925ed3e5cd6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9d9e3ac9699613

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1680-84-0x0000000000950000-0x00000000009F2000-memory.dmp	family_socks5systemz
behavioral2/memory/1680-107-0x0000000000950000-0x00000000009F2000-memory.dmp	family_socks5systemz
behavioral2/memory/1680-108-0x0000000000950000-0x00000000009F2000-memory.dmp	family_socks5systemz

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

Processes:

7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.tmpmoonvoiceassist32_64.exemoonvoiceassist32_64.exe

pid process

2524 7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.tmp
1828 moonvoiceassist32_64.exe
1680 moonvoiceassist32_64.exe
Loads dropped DLL 1 IoCs

Processes:

7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.tmp

pid process

2524 7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.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:

7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.tmp

pid process

2524 7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.tmp

pid	process
2524	7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.tmp
1828	moonvoiceassist32_64.exe
1680	moonvoiceassist32_64.exe

pid	process
2524	7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.tmp

description	ioc
Destination IP	141.98.234.31

pid	process
2524	7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.exe7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.tmp

description	pid	process	target process
PID 3560 wrote to memory of 2524	3560	7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.exe	7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.tmp
PID 3560 wrote to memory of 2524	3560	7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.exe	7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.tmp
PID 3560 wrote to memory of 2524	3560	7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.exe	7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.tmp
PID 2524 wrote to memory of 1828	2524	7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.tmp	moonvoiceassist32_64.exe
PID 2524 wrote to memory of 1828	2524	7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.tmp	moonvoiceassist32_64.exe
PID 2524 wrote to memory of 1828	2524	7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.tmp	moonvoiceassist32_64.exe
PID 2524 wrote to memory of 1680	2524	7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.tmp	moonvoiceassist32_64.exe
PID 2524 wrote to memory of 1680	2524	7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.tmp	moonvoiceassist32_64.exe
PID 2524 wrote to memory of 1680	2524	7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.tmp	moonvoiceassist32_64.exe

C:\Users\Admin\AppData\Local\Temp\7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.exe
"C:\Users\Admin\AppData\Local\Temp\7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3560

C:\Users\Admin\AppData\Local\Temp\is-TIOV3.tmp\7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.tmp
"C:\Users\Admin\AppData\Local\Temp\is-TIOV3.tmp\7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.tmp" /SL5="$40248,4971959,54272,C:\Users\Admin\AppData\Local\Temp\7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2524

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:1828

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:1680

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
162b05f5a6cb1ba1635307f8025f89d1

SHA1
7c6c563214236b3deb4d91727fad77d78dfd4a31

SHA256
500214d4ab1b337d579fe97da371ca3857684f096655db6b9409c4be8d3e61c6

SHA512
6ab7a6733dc341efc29afd2b300b60973747a2c98be324edeaa3a62bc6a9a68f8525fd58e99e0c6bec410ee57ac4384283a7ce108a2dd147b8f3db764b2a0529

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-A9LA9.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-TIOV3.tmp\7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0.tmp
Filesize
680KB

MD5
895d982b558dbe81e0d8d31e818f766e

SHA1
27d9e61b8edaf48db4c519be05f0f4ea33900a7a

SHA256
3c0328c6c8c37a3e81cb28c46eeb4c98f033eaf28326903ac6e7204d23928cfb

SHA512
4ab3f51fe1f4b7ce5bd6e21518de1ebae7b631bb4a968a424efff6db1a53755853478db108547492a2784c55f1d934f776388232f556880f682e401c45b7db97

Download Submit
memory/1680-97-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/1680-100-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/1680-115-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/1680-112-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/1680-108-0x0000000000950000-0x00000000009F2000-memory.dmp

Filesize
648KB

Download
memory/1680-107-0x0000000000950000-0x00000000009F2000-memory.dmp

Filesize
648KB

Download
memory/1680-106-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/1680-103-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/1680-94-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/1680-69-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/1680-72-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/1680-75-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/1680-78-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/1680-81-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/1680-84-0x0000000000950000-0x00000000009F2000-memory.dmp

Filesize
648KB

Download
memory/1680-86-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/1680-91-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/1828-64-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/1828-63-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/1828-60-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/1828-59-0x0000000000400000-0x0000000000721000-memory.dmp

Filesize
3.1MB

Download
memory/2524-68-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2524-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3560-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3560-67-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3560-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

Analysis

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