socks5systemz | af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19

General

Target

af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.exe
Size

4.9MB
MD5

8169c9f2327f1cf2e695ef76f349a715
SHA1

89c1306d77f525bf18e96e7734ed722242dbb579
SHA256

af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19
SHA512

a82cbef9ab2e61048cfee6b89a655a27295fe431406873785948566f1fcbaf43adc5105fe2edbe0fd303271ac3c31cb5a3e05d1cebaa008bd4af51b5e214a8c1
SSDEEP

98304:mg721aYMPMJIcGcR3F7xAJhu6uGJFhAkCwea9/E4J3z9kIq+uGnFnnXlcBll:a1aCOcGsv0PueFmBwW4JDlnFnXlcBll

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bxeiamr.com

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4596-85-0x00000000024D0000-0x0000000002572000-memory.dmp	family_socks5systemz

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

Processes:

af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmpstarsaudioconverter32.exestarsaudioconverter32.exe

pid process

5088 af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp
4036 starsaudioconverter32.exe
4596 starsaudioconverter32.exe
Loads dropped DLL 1 IoCs

Processes:

af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp

pid process

5088 af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.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 141.98.234.31
Destination IP 152.89.198.214
Destination IP 91.211.247.248
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:

af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp

pid process

5088 af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp

pid	process
5088	af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp
4036	starsaudioconverter32.exe
4596	starsaudioconverter32.exe

pid	process
5088	af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp

description	ioc
Destination IP	141.98.234.31
Destination IP	152.89.198.214
Destination IP	91.211.247.248

pid	process
5088	af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.exeaf503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp

description	pid	process	target process
PID 1516 wrote to memory of 5088	1516	af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.exe	af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp
PID 1516 wrote to memory of 5088	1516	af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.exe	af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp
PID 1516 wrote to memory of 5088	1516	af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.exe	af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp
PID 5088 wrote to memory of 4036	5088	af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp	starsaudioconverter32.exe
PID 5088 wrote to memory of 4036	5088	af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp	starsaudioconverter32.exe
PID 5088 wrote to memory of 4036	5088	af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp	starsaudioconverter32.exe
PID 5088 wrote to memory of 4596	5088	af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp	starsaudioconverter32.exe
PID 5088 wrote to memory of 4596	5088	af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp	starsaudioconverter32.exe
PID 5088 wrote to memory of 4596	5088	af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp	starsaudioconverter32.exe

C:\Users\Admin\AppData\Local\Temp\af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.exe
"C:\Users\Admin\AppData\Local\Temp\af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1516

C:\Users\Admin\AppData\Local\Temp\is-HQBGN.tmp\af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp
"C:\Users\Admin\AppData\Local\Temp\is-HQBGN.tmp\af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp" /SL5="$6004E,4859862,54272,C:\Users\Admin\AppData\Local\Temp\af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:5088

C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe
"C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe" -i
3⤵
- Executes dropped EXE
PID:4036

C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe
"C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe" -s
3⤵
- Executes dropped EXE
PID:4596

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe

Filesize
2.4MB

MD5
a7e3afa04828d1220190dbe3a5054a73

SHA1
4cdc1534b1aaca0372c77f0aa9c3edba2157bf9c

SHA256
5482badd2244e3fc7383b43dd9d582e31783ad3f4b1049abe7a045cf0e4604c8

SHA512
476c60b6b9dba9e4fbd29b68b67a2d7fa5911d8d4f5687debe8b78adf7332297bd25fbb499090a7a2601d63e50b2409bd43b92891069d30ba28f5efa3374de0d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-FAVO4.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-HQBGN.tmp\af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp

Filesize
680KB

MD5
e805fd8d14185debe4999b420e788690

SHA1
014b87617a2f2c62530ec2da91a5be0d8078c098

SHA256
720ee272d4e0d2c13caaa0051d875437161f82df74152144276e87f694712a3c

SHA512
33b68c21ef3f6ea17736ff45881019e363abc2df83ae4c1399bb3b3466199b06731bdd45c0852cad33408b54371cb9a9a574ec3445dd5030f6e56306f1e81dbf

Download Submit
memory/1516-70-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1516-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1516-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4036-59-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/4036-62-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/4036-60-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/4036-65-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/4596-72-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/4596-85-0x00000000024D0000-0x0000000002572000-memory.dmp

Filesize
648KB

Download
memory/4596-68-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/4596-115-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/4596-112-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/4596-75-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/4596-78-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/4596-81-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/4596-84-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/4596-69-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/4596-89-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/4596-94-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/4596-97-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/4596-100-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/4596-103-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/4596-106-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/4596-109-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/5088-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/5088-71-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

Sharing