socks5systemz | c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c

General

Target

c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.exe
Size

4.8MB
MD5

5d8055b24f8de136efb5aead32d4a3ab
SHA1

dcd60c427b961a0527b264007eb53beee3966eae
SHA256

c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c
SHA512

f96573abc8ae111477fe6ff35228dbffe8bb13ac2baa8ecd020889eaacbdd101bf08c9c3633c3f46542ed5f93d940232c68736c1c42746095dd1959c0b92b9e9
SSDEEP

98304:mHprs5EUU63Sc+mPywD4wEvmBRnWRCDoDiOGa8yeJkbtlUiw3c/C:KpmEHcjHBEvrRCxOGa8y4+/C

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

boszivy.com

http://boszivy.com/search/?q=67e28dd83954f07a4008f8497c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ae8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff712c9ee93993d

http://boszivy.com/search/?q=67e28dd83954f07a4008f8497c27d78406abdd88be4b12eab517aa5c96bd86e895834c845a8bbc896c58e713bc90c91f36b5281fc235a925ed3e5cd6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9d9932cc699510

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3364-86-0x0000000002550000-0x00000000025F2000-memory.dmp	family_socks5systemz
behavioral1/memory/3364-109-0x0000000002550000-0x00000000025F2000-memory.dmp	family_socks5systemz
behavioral1/memory/3364-110-0x0000000002550000-0x00000000025F2000-memory.dmp	family_socks5systemz

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

Processes:

c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.tmpm4atomp3converter.exem4atomp3converter.exe

pid process

4056 c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.tmp
1480 m4atomp3converter.exe
3364 m4atomp3converter.exe
Loads dropped DLL 1 IoCs

Processes:

c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.tmp

pid process

4056 c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.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:

c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.tmp

pid process

4056 c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.tmp

pid	process
4056	c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.tmp
1480	m4atomp3converter.exe
3364	m4atomp3converter.exe

pid	process
4056	c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.tmp

description	ioc
Destination IP	141.98.234.31

pid	process
4056	c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.exec5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.tmp

description	pid	process	target process
PID 732 wrote to memory of 4056	732	c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.exe	c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.tmp
PID 732 wrote to memory of 4056	732	c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.exe	c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.tmp
PID 732 wrote to memory of 4056	732	c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.exe	c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.tmp
PID 4056 wrote to memory of 1480	4056	c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.tmp	m4atomp3converter.exe
PID 4056 wrote to memory of 1480	4056	c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.tmp	m4atomp3converter.exe
PID 4056 wrote to memory of 1480	4056	c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.tmp	m4atomp3converter.exe
PID 4056 wrote to memory of 3364	4056	c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.tmp	m4atomp3converter.exe
PID 4056 wrote to memory of 3364	4056	c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.tmp	m4atomp3converter.exe
PID 4056 wrote to memory of 3364	4056	c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.tmp	m4atomp3converter.exe

C:\Users\Admin\AppData\Local\Temp\c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.exe
"C:\Users\Admin\AppData\Local\Temp\c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:732

C:\Users\Admin\AppData\Local\Temp\is-8BSMP.tmp\c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.tmp
"C:\Users\Admin\AppData\Local\Temp\is-8BSMP.tmp\c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.tmp" /SL5="$E0064,4766802,54272,C:\Users\Admin\AppData\Local\Temp\c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4056

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe" -i
3⤵
- Executes dropped EXE
PID:1480

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe" -s
3⤵
- Executes dropped EXE
PID:3364

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\M4A to MP3 Free Converter\m4atomp3converter.exe
Filesize
2.9MB

MD5
84703fb5d6dff9f2ae9263b8f97ee5c2

SHA1
d8f29c4d5ecb258dd42ad7938f6dee226cb5dbed

SHA256
3c063a0ba4e6a2047ffb4e4e5f6fe3b295673ef58c3c75e3c79e07f1d370c858

SHA512
b9e7367be5612ac4a6fefc65780b7535229ceef47e23f737cc86b9a2e83e7db5106e348ec430f3d3ad03ca7d1264082b349d13f954f1ed514380de7d783845b8

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-8BSMP.tmp\c5ff5663bbfcd828dff42225e3b2250d6bb9590e1c0df2177ed2a734358ffb0c.tmp
Filesize
680KB

MD5
984e6b8a7e6fa5cbf5a45904b1defc00

SHA1
37ce92d6cf1a117a191d14cc7fa1a6a97c05c967

SHA256
3313fd9ad369bdee368d356036858a7fcc6182175a30a92a6b73e41e1b2a5eb7

SHA512
55af997bfcc532ff01e593471197555432481587c263eb3777e511c656e030edd6c34edce0778b07e117dae4b9ed18976d2ec5c2fe127511a5f29928223ab7c8

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-L71A1.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/732-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/732-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/732-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1480-59-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/1480-60-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/1480-61-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/1480-65-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/3364-74-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/3364-88-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/3364-117-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/3364-71-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/3364-114-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/3364-77-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/3364-80-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/3364-83-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/3364-86-0x0000000002550000-0x00000000025F2000-memory.dmp

Filesize
648KB

Download
memory/3364-68-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/3364-93-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/3364-96-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/3364-99-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/3364-102-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/3364-105-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/3364-108-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/3364-109-0x0000000002550000-0x00000000025F2000-memory.dmp

Filesize
648KB

Download
memory/3364-110-0x0000000002550000-0x00000000025F2000-memory.dmp

Filesize
648KB

Download
memory/4056-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4056-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

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