socks5systemz | 1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934

General

Target

1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.exe
Size

5.0MB
MD5

b30b079ded3148b24262c8b0879384f1
SHA1

55d37afa252b5c31cc70a44cce12aba262668870
SHA256

1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934
SHA512

dedb460604dc495ae72abdc7e54d8778ccffb1b859b560ef3914f66fc49a760adaa9cd9e0bd2f4fcb13a443283a328d0731953511850b2bbe729a22085a3b12a
SSDEEP

98304:m1RAEwe9OKinxJz0XBQs55tnz1Fp5rXehu5CIoKkQKtAXVHkqoFeuZ7MRiee:a3Z9OKi70XSstzjp5rX04CI9+yVHkqo3

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

ddbulno.info

http://ddbulno.info/search/?q=67e28dd83954f07a4008f8497c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ae8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff712c2eb9c933b

http://ddbulno.info/search/?q=67e28dd83954f07a4008f8497c27d78406abdd88be4b12eab517aa5c96bd86e895834c845a8bbc896c58e713bc90c91f36b5281fc235a925ed3e5cd6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9d9939c9669f16

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3604-87-0x0000000000920000-0x00000000009C2000-memory.dmp	family_socks5systemz
behavioral1/memory/3604-110-0x0000000000920000-0x00000000009C2000-memory.dmp	family_socks5systemz
behavioral1/memory/3604-111-0x0000000000920000-0x00000000009C2000-memory.dmp	family_socks5systemz

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

Processes:

1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmpmoonvoiceassist32_64.exemoonvoiceassist32_64.exe

pid process

1056 1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp
700 moonvoiceassist32_64.exe
3604 moonvoiceassist32_64.exe
Loads dropped DLL 1 IoCs

Processes:

1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp

pid process

1056 1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.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:

1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp

pid process

1056 1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp

pid	process
1056	1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp
700	moonvoiceassist32_64.exe
3604	moonvoiceassist32_64.exe

pid	process
1056	1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp

description	ioc
Destination IP	141.98.234.31

pid	process
1056	1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.exe1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp

description	pid	process	target process
PID 3432 wrote to memory of 1056	3432	1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.exe	1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp
PID 3432 wrote to memory of 1056	3432	1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.exe	1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp
PID 3432 wrote to memory of 1056	3432	1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.exe	1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp
PID 1056 wrote to memory of 700	1056	1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp	moonvoiceassist32_64.exe
PID 1056 wrote to memory of 700	1056	1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp	moonvoiceassist32_64.exe
PID 1056 wrote to memory of 700	1056	1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp	moonvoiceassist32_64.exe
PID 1056 wrote to memory of 3604	1056	1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp	moonvoiceassist32_64.exe
PID 1056 wrote to memory of 3604	1056	1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp	moonvoiceassist32_64.exe
PID 1056 wrote to memory of 3604	1056	1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp	moonvoiceassist32_64.exe

C:\Users\Admin\AppData\Local\Temp\1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.exe
"C:\Users\Admin\AppData\Local\Temp\1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3432

C:\Users\Admin\AppData\Local\Temp\is-4CKQ8.tmp\1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp
"C:\Users\Admin\AppData\Local\Temp\is-4CKQ8.tmp\1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp" /SL5="$D0064,4984957,54272,C:\Users\Admin\AppData\Local\Temp\1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1056

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:700

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:3604

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
19056d99baa26a2706aaedda68251006

SHA1
b958a568f35633d898bf85ad3e2b3ca3fc17f114

SHA256
af22e00ff69fe818b024d6048ef0758d5c0feeebf4d22da203ca57b525b25f45

SHA512
2a2180ea488e187b9d9ba5ff0785bc8851d477d34c4cc46a1c229a4fd667e0b3e5a33c5e9713047bc344ca8be17110b6b8c4803b72f2936d4ea373e8c34b08b8

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-21H9N.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-4CKQ8.tmp\1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp
Filesize
680KB

MD5
895d982b558dbe81e0d8d31e818f766e

SHA1
27d9e61b8edaf48db4c519be05f0f4ea33900a7a

SHA256
3c0328c6c8c37a3e81cb28c46eeb4c98f033eaf28326903ac6e7204d23928cfb

SHA512
4ab3f51fe1f4b7ce5bd6e21518de1ebae7b631bb4a968a424efff6db1a53755853478db108547492a2784c55f1d934f776388232f556880f682e401c45b7db97

Download Submit
memory/700-59-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/700-60-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/700-61-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/700-64-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/1056-14-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1056-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3432-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3432-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3432-1-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3604-75-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/3604-89-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/3604-71-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/3604-74-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/3604-67-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/3604-78-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/3604-81-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/3604-84-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/3604-87-0x0000000000920000-0x00000000009C2000-memory.dmp

Filesize
648KB

Download
memory/3604-68-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/3604-94-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/3604-97-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/3604-100-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/3604-103-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/3604-106-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/3604-109-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/3604-110-0x0000000000920000-0x00000000009C2000-memory.dmp

Filesize
648KB

Download
memory/3604-111-0x0000000000920000-0x00000000009C2000-memory.dmp

Filesize
648KB

Download
memory/3604-115-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/3604-118-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download

Analysis

Sharing