socks5systemz | 1d97b270b675722d28902db6764a5aed660e0a5c53d0f0772c950458fe640631

General

Target

8d33c4fde4a3e19fb5a339193836d3a538c3ee709ca7efba6fe491a64680ee18.exe
Size

4.1MB
MD5

9628bd758307c6cb49cadeca64ec00b5
SHA1

f89ae75487e00da575c538325fd202db7def5069
SHA256

8d33c4fde4a3e19fb5a339193836d3a538c3ee709ca7efba6fe491a64680ee18
SHA512

d9ccabd2e78dacbca82cedfb87a13aad919ffa8188b847adb3f056316028d2a97a4843c156da64bb7bd8a2098296e6d13391849ff01fe9b34497b83970b6c93a
SSDEEP

98304:CeRgV5sykDBelrenymxcWy8Nf0BFNW3hgPnr/rzghMBMLET22htMoQx/Z:6sJDBMr8GUf0BWRg/r/rzgh0MLk22HrO

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://bubowcz.com/search/?q=67e28dd83e08a72b4108ad4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4fe8889b5e4fa9281ae978f671ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffd16c1ec959c3f

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/2476-70-0x00000000008A0000-0x0000000000942000-memory.dmp	family_socks5systemz
behavioral2/memory/2476-69-0x00000000008A0000-0x0000000000942000-memory.dmp	family_socks5systemz
behavioral2/memory/2476-80-0x00000000008A0000-0x0000000000942000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz

Executes dropped EXE 3 IoCs

pid	Process
2468	8d33c4fde4a3e19fb5a339193836d3a538c3ee709ca7efba6fe491a64680ee18.tmp
4552	soundvolumeview.exe
2476	soundvolumeview.exe

Loads dropped DLL 1 IoCs

pid	Process
2468	8d33c4fde4a3e19fb5a339193836d3a538c3ee709ca7efba6fe491a64680ee18.tmp

Unexpected DNS network traffic destination 1 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	152.89.198.214

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

pid	Process
2468	8d33c4fde4a3e19fb5a339193836d3a538c3ee709ca7efba6fe491a64680ee18.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4896 wrote to memory of 2468	4896	8d33c4fde4a3e19fb5a339193836d3a538c3ee709ca7efba6fe491a64680ee18.exe	86
PID 4896 wrote to memory of 2468	4896	8d33c4fde4a3e19fb5a339193836d3a538c3ee709ca7efba6fe491a64680ee18.exe	86
PID 4896 wrote to memory of 2468	4896	8d33c4fde4a3e19fb5a339193836d3a538c3ee709ca7efba6fe491a64680ee18.exe	86
PID 2468 wrote to memory of 4552	2468	8d33c4fde4a3e19fb5a339193836d3a538c3ee709ca7efba6fe491a64680ee18.tmp	89
PID 2468 wrote to memory of 4552	2468	8d33c4fde4a3e19fb5a339193836d3a538c3ee709ca7efba6fe491a64680ee18.tmp	89
PID 2468 wrote to memory of 4552	2468	8d33c4fde4a3e19fb5a339193836d3a538c3ee709ca7efba6fe491a64680ee18.tmp	89
PID 2468 wrote to memory of 2476	2468	8d33c4fde4a3e19fb5a339193836d3a538c3ee709ca7efba6fe491a64680ee18.tmp	90
PID 2468 wrote to memory of 2476	2468	8d33c4fde4a3e19fb5a339193836d3a538c3ee709ca7efba6fe491a64680ee18.tmp	90
PID 2468 wrote to memory of 2476	2468	8d33c4fde4a3e19fb5a339193836d3a538c3ee709ca7efba6fe491a64680ee18.tmp	90

C:\Users\Admin\AppData\Local\Temp\8d33c4fde4a3e19fb5a339193836d3a538c3ee709ca7efba6fe491a64680ee18.exe
"C:\Users\Admin\AppData\Local\Temp\8d33c4fde4a3e19fb5a339193836d3a538c3ee709ca7efba6fe491a64680ee18.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4896
- C:\Users\Admin\AppData\Local\Temp\is-DPUMH.tmp\8d33c4fde4a3e19fb5a339193836d3a538c3ee709ca7efba6fe491a64680ee18.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-DPUMH.tmp\8d33c4fde4a3e19fb5a339193836d3a538c3ee709ca7efba6fe491a64680ee18.tmp" /SL5="$401EC,3934428,54272,C:\Users\Admin\AppData\Local\Temp\8d33c4fde4a3e19fb5a339193836d3a538c3ee709ca7efba6fe491a64680ee18.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2468
- - C:\Users\Admin\AppData\Local\SoundVolumeView\soundvolumeview.exe
    "C:\Users\Admin\AppData\Local\SoundVolumeView\soundvolumeview.exe" -i
    3⤵
    - Executes dropped EXE
    PID:4552
- - C:\Users\Admin\AppData\Local\SoundVolumeView\soundvolumeview.exe
    "C:\Users\Admin\AppData\Local\SoundVolumeView\soundvolumeview.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2476

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

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Downloads

C:\Users\Admin\AppData\Local\SoundVolumeView\soundvolumeview.exe

Filesize
2.6MB

MD5
ab3f9437ace8d88fecea6987f707f88b

SHA1
c79fcf69a62a42542ad66a422fea81c74663f190

SHA256
3eceff317681cc9c891b8408a2d282d6389044a326b3a7ead9fe1360ea31114b

SHA512
c1bbb6c6fae1b768444cf531fab0f1b806fe309e07cf2cb4c52b513b098903c00b04c43c92b6bc0f9f9aac1e8cc8325b684fc8bb82e9f23fbdbc6e4ec18ed7cf

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-DPUMH.tmp\8d33c4fde4a3e19fb5a339193836d3a538c3ee709ca7efba6fe491a64680ee18.tmp

Filesize
680KB

MD5
2c736da05afa88808b627349b768af16

SHA1
51ce7bfc1d4764c33a9440b2cb91aa9e8d063799

SHA256
6497f478f84388317de07b03f03e77cb69e2f1e85c7c940aac4a1bc31d4a71cc

SHA512
848a4922e12dc6ac2be56961045a630b1a12fea0b47f15df4bf2577f9b16d789f5118a78c9a1f8cba04453c9711df8dd57c37cc4cb6b3a6f91b0199b2e6ce522

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-M9N8N.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/2468-50-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2468-52-0x0000000000680000-0x0000000000681000-memory.dmp

Filesize
4KB

Download
memory/2468-7-0x0000000000680000-0x0000000000681000-memory.dmp

Filesize
4KB

Download
memory/2476-76-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/2476-79-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/2476-99-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/2476-96-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/2476-46-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/2476-48-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/2476-92-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/2476-89-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/2476-51-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/2476-86-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/2476-55-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/2476-56-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/2476-59-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/2476-62-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/2476-65-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/2476-68-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/2476-70-0x00000000008A0000-0x0000000000942000-memory.dmp

Filesize
648KB

Download
memory/2476-69-0x00000000008A0000-0x0000000000942000-memory.dmp

Filesize
648KB

Download
memory/2476-83-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/2476-80-0x00000000008A0000-0x0000000000942000-memory.dmp

Filesize
648KB

Download
memory/4552-40-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/4552-39-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/4552-44-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/4552-41-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/4896-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4896-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4896-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

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