socks5systemz | 2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d

General

Target

2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.exe
Size

4.6MB
MD5

edb5b2812a4ab1a9695f70db81e59e6f
SHA1

4271df6d69b18efc95d3242ae96d78a7068997e2
SHA256

2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d
SHA512

eed0d5528b6eb93beb0905fa082b824262b4713821fb33b5b92d55971a5fb67b0fcabd313c06ef361e0af073379324593da58eb1640b794a6dac1bf2a5e53ee4
SSDEEP

98304:m85f65y8RMsYRLX8D8zTY17FcMoFnlzjwpqAk2g:zcdMs4X8Ya7FnEnipq4g

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

cecyedk.net

http://cecyedk.net/search/?q=67e28dd86509f67a4206fe1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa45e8889b5e4fa9281ae978f171ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6e8bfd19c0e995

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2640-92-0x0000000002730000-0x00000000027D2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
2024	2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.tmp
2808	freesoundrecorder.exe
2640	freesoundrecorder.exe

Loads dropped DLL 5 IoCs

pid	Process
2028	2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.exe
2024	2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.tmp
2024	2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.tmp
2024	2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.tmp
2024	2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.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
2024	2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.tmp

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2028 wrote to memory of 2024	2028	2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.exe	28
PID 2028 wrote to memory of 2024	2028	2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.exe	28
PID 2028 wrote to memory of 2024	2028	2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.exe	28
PID 2028 wrote to memory of 2024	2028	2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.exe	28
PID 2028 wrote to memory of 2024	2028	2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.exe	28
PID 2028 wrote to memory of 2024	2028	2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.exe	28
PID 2028 wrote to memory of 2024	2028	2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.exe	28
PID 2024 wrote to memory of 2808	2024	2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.tmp	29
PID 2024 wrote to memory of 2808	2024	2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.tmp	29
PID 2024 wrote to memory of 2808	2024	2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.tmp	29
PID 2024 wrote to memory of 2808	2024	2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.tmp	29
PID 2024 wrote to memory of 2640	2024	2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.tmp	30
PID 2024 wrote to memory of 2640	2024	2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.tmp	30
PID 2024 wrote to memory of 2640	2024	2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.tmp	30
PID 2024 wrote to memory of 2640	2024	2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.tmp	30

C:\Users\Admin\AppData\Local\Temp\2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.exe
"C:\Users\Admin\AppData\Local\Temp\2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Users\Admin\AppData\Local\Temp\is-E4URT.tmp\2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-E4URT.tmp\2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.tmp" /SL5="$400F4,4562532,54272,C:\Users\Admin\AppData\Local\Temp\2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2024
- - C:\Users\Admin\AppData\Local\Free Sound Recorder\freesoundrecorder.exe
    "C:\Users\Admin\AppData\Local\Free Sound Recorder\freesoundrecorder.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2808
- - C:\Users\Admin\AppData\Local\Free Sound Recorder\freesoundrecorder.exe
    "C:\Users\Admin\AppData\Local\Free Sound Recorder\freesoundrecorder.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2640

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

\Users\Admin\AppData\Local\Free Sound Recorder\freesoundrecorder.exe

Filesize
2.8MB

MD5
3cc4f5ace9b68bbe544dde59157d066b

SHA1
a9adbad5b413d73c03dff6921e1bbf28154067b9

SHA256
112824fc4af62fd68ef9798c71997b73ebf01acd531a8097370bf06c0c8c1aed

SHA512
bbd51d68c2de65143136de35c8e75c7bcb725d262ff61c39f8fc16fc05091fa0212959d020de8e87bc316704bc2f59073426ad93db0937950f1d0f547411d175

Download Submit
\Users\Admin\AppData\Local\Temp\is-E4URT.tmp\2569d730c919ad4dd069689868201a9f403659fdcb0560b9698f38dc4b5d829d.tmp

Filesize
680KB

MD5
8b304c468195ab293e5441936d1951ed

SHA1
916b54a63d6d27496804ec1ca3a7b6b1f6ef11cc

SHA256
6f89d2c5f99527821d5a136c0e2ffabee6dc5a2a31b49b14e85ccee95f076e74

SHA512
c3fed038dcf3e8b8a9df603207fabf69835645fe6ed670a54ebe0b10dad5f7099c03ce7f9fa359d31f8464c1b203e84b8418e2b1accd468dad13b6f795ae8137

Download Submit
\Users\Admin\AppData\Local\Temp\is-VK009.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-VK009.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/2024-79-0x0000000003930000-0x0000000003BF6000-memory.dmp

Filesize
2.8MB

Download
memory/2024-17-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2024-64-0x0000000003930000-0x0000000003BF6000-memory.dmp

Filesize
2.8MB

Download
memory/2024-74-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2028-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2028-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2028-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2640-88-0x0000000000400000-0x00000000006C6000-memory.dmp

Filesize
2.8MB

Download
memory/2640-98-0x0000000000400000-0x00000000006C6000-memory.dmp

Filesize
2.8MB

Download
memory/2640-137-0x0000000000400000-0x00000000006C6000-memory.dmp

Filesize
2.8MB

Download
memory/2640-75-0x0000000000400000-0x00000000006C6000-memory.dmp

Filesize
2.8MB

Download
memory/2640-78-0x0000000000400000-0x00000000006C6000-memory.dmp

Filesize
2.8MB

Download
memory/2640-132-0x0000000000400000-0x00000000006C6000-memory.dmp

Filesize
2.8MB

Download
memory/2640-82-0x0000000000400000-0x00000000006C6000-memory.dmp

Filesize
2.8MB

Download
memory/2640-85-0x0000000000400000-0x00000000006C6000-memory.dmp

Filesize
2.8MB

Download
memory/2640-129-0x0000000000400000-0x00000000006C6000-memory.dmp

Filesize
2.8MB

Download
memory/2640-91-0x0000000000400000-0x00000000006C6000-memory.dmp

Filesize
2.8MB

Download
memory/2640-92-0x0000000002730000-0x00000000027D2000-memory.dmp

Filesize
648KB

Download
memory/2640-71-0x0000000000400000-0x00000000006C6000-memory.dmp

Filesize
2.8MB

Download
memory/2640-101-0x0000000000400000-0x00000000006C6000-memory.dmp

Filesize
2.8MB

Download
memory/2640-104-0x0000000000400000-0x00000000006C6000-memory.dmp

Filesize
2.8MB

Download
memory/2640-107-0x0000000000400000-0x00000000006C6000-memory.dmp

Filesize
2.8MB

Download
memory/2640-110-0x0000000000400000-0x00000000006C6000-memory.dmp

Filesize
2.8MB

Download
memory/2640-113-0x0000000000400000-0x00000000006C6000-memory.dmp

Filesize
2.8MB

Download
memory/2640-117-0x0000000000400000-0x00000000006C6000-memory.dmp

Filesize
2.8MB

Download
memory/2640-120-0x0000000000400000-0x00000000006C6000-memory.dmp

Filesize
2.8MB

Download
memory/2640-123-0x0000000000400000-0x00000000006C6000-memory.dmp

Filesize
2.8MB

Download
memory/2640-126-0x0000000000400000-0x00000000006C6000-memory.dmp

Filesize
2.8MB

Download
memory/2808-65-0x0000000000400000-0x00000000006C6000-memory.dmp

Filesize
2.8MB

Download
memory/2808-66-0x0000000000400000-0x00000000006C6000-memory.dmp

Filesize
2.8MB

Download
memory/2808-69-0x0000000000400000-0x00000000006C6000-memory.dmp

Filesize
2.8MB

Download

Analysis

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