socks5systemz | c56c00ca3f42026f17affef76b3752f268d1498f862b3143985ca7c1d33feb39

Resubmissions

21-01-2025 13:35

250121-qvptgawqbk 10

21-01-2025 11:58

21-01-2025 11:44

21-01-2025 11:07

17-07-2024 20:08

Analysis

max time kernel
293s
max time network
279s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-01-2025 11:07

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General

Target

setup.exe
Size

5.0MB
MD5

d6dd2275a92bd37adb3a886255a431ef
SHA1

a28933f79041f29a681cfb444fc7b8d63435c510
SHA256

e51f3f998cd7c0783deb68c18c39b6ccf77f5dca0b611ddd23dcf09845ab8b31
SHA512

1c303bf3dfc8ba54d02096615cdbf34752a312c2478f16c3fc38a8e75b2ab0619fb46e434b2b96aa89114873c3659db91fb9e0308fe47d91d0b9124e48814ded
SSDEEP

98304:Cf6hoGwhlxoORmkoq6LoTxHVo81F728I/e6KMMj9BZCloOhyNnh+IDQxb:avpeAZILoTFT1s8n9TfhdDQB

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral28/memory/2668-94-0x0000000002660000-0x0000000002702000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Socks5systemz family
socks5systemz

Executes dropped EXE 3 IoCs

pid	Process
2904	setup.tmp
1880	vpkaudioplayer.exe
2668	vpkaudioplayer.exe

Loads dropped DLL 5 IoCs

pid	Process
1872	setup.exe
2904	setup.tmp
2904	setup.tmp
2904	setup.tmp
2904	setup.tmp

Unexpected DNS network traffic destination 3 IoCs

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

description	ioc
Destination IP	91.211.247.248
Destination IP	152.89.198.214
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

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	setup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	setup.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vpkaudioplayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vpkaudioplayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2904	setup.tmp

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1872 wrote to memory of 2904	1872	setup.exe	28
PID 1872 wrote to memory of 2904	1872	setup.exe	28
PID 1872 wrote to memory of 2904	1872	setup.exe	28
PID 1872 wrote to memory of 2904	1872	setup.exe	28
PID 1872 wrote to memory of 2904	1872	setup.exe	28
PID 1872 wrote to memory of 2904	1872	setup.exe	28
PID 1872 wrote to memory of 2904	1872	setup.exe	28
PID 2904 wrote to memory of 1880	2904	setup.tmp	29
PID 2904 wrote to memory of 1880	2904	setup.tmp	29
PID 2904 wrote to memory of 1880	2904	setup.tmp	29
PID 2904 wrote to memory of 1880	2904	setup.tmp	29
PID 2904 wrote to memory of 2668	2904	setup.tmp	30
PID 2904 wrote to memory of 2668	2904	setup.tmp	30
PID 2904 wrote to memory of 2668	2904	setup.tmp	30
PID 2904 wrote to memory of 2668	2904	setup.tmp	30

C:\Users\Admin\AppData\Local\Temp\setup.exe
C:\Users\Admin\AppData\Local\Temp\setup.exe sh $MOZILLA\\nPLUGIN %SIGILL% "SIGTERM|DESTROY|SIGKILL"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1872
- C:\Users\Admin\AppData\Local\Temp\is-8E1OG.tmp\setup.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-8E1OG.tmp\setup.tmp" /SL5="$401B4,4997647,54272,C:\Users\Admin\AppData\Local\Temp\setup.exe" sh $MOZILLA\\nPLUGIN %SIGILL% "SIGTERM|DESTROY|SIGKILL"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2904
- - C:\Users\Admin\AppData\Local\VPK Audio Player\vpkaudioplayer.exe
    "C:\Users\Admin\AppData\Local\VPK Audio Player\vpkaudioplayer.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1880
- - C:\Users\Admin\AppData\Local\VPK Audio Player\vpkaudioplayer.exe
    "C:\Users\Admin\AppData\Local\VPK Audio Player\vpkaudioplayer.exe" -s
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\is-8E1OG.tmp\setup.tmp

Filesize
680KB

MD5
c0c76b135dada6ca7bfa7f909d8c4d9b

SHA1
1142d8d15d68abc87ab39c3ef3f9d2dfa7615112

SHA256
fba03e4d43d3fd94897cb65c1d0d4d6f851a5ba21a02bc343a8abe365d344770

SHA512
49d44f28f4319e4e545f709abed52ed70462db179038d3ae31c182a3046d5d30ad151677104a5df33830c81998b8223090691e8f07f913a9ef3afeaaee011b7f

Download Submit
\Users\Admin\AppData\Local\Temp\is-9MMGQ.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-9MMGQ.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\VPK Audio Player\vpkaudioplayer.exe

Filesize
4.0MB

MD5
c1ebb045df9ea1406bd9e5bd7d989eb1

SHA1
45c9deaa50e8634088adfb64810d9f51af16975b

SHA256
f09a1182c81d7306f666e901b8bb394fe6341d28ea7ec8bb1edc14a538a3d009

SHA512
a9e00778114c1b5c83ec5ead7a97fef29392f22e2c827d0ac8bd11eb3d041a6e75ef1974655401b6ae4c8c65938608994da9af28c9becbefaf8bff7c3a9c49c1

Download Submit
memory/1872-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1872-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1872-75-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1880-69-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/1880-65-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/1880-66-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/2668-84-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/2668-100-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/2668-137-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/2668-134-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/2668-131-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/2668-77-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/2668-78-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/2668-81-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/2668-128-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/2668-87-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/2668-90-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/2668-93-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/2668-94-0x0000000002660000-0x0000000002702000-memory.dmp

Filesize
648KB

Download
memory/2668-71-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/2668-103-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/2668-106-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/2668-109-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/2668-112-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/2668-115-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/2668-118-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/2668-121-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/2668-124-0x0000000000400000-0x00000000007FA000-memory.dmp

Filesize
4.0MB

Download
memory/2904-9-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2904-64-0x00000000058F0000-0x0000000005CEA000-memory.dmp

Filesize
4.0MB

Download
memory/2904-74-0x00000000058F0000-0x0000000005CEA000-memory.dmp

Filesize
4.0MB

Download
memory/2904-73-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download