socks5systemz | 748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0

General

Target

748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.exe
Size

4.7MB
MD5

6dc45db689c80230256d5b02a5be2cfd
SHA1

15a4d6ef2805dc4002fc53f98f739234e211ace1
SHA256

748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0
SHA512

593205cc2690644c0bf7ce843b5866cc4cee1ba3b783dc517c9b558735a9dcbe07cbd72f84106d908414d3819f36f168aa94848e442e5259befd3f07de29bbd2
SSDEEP

98304:mrHHLcMZHeE8CHn5KMl3YZCN2lXCfb/j5BDEIjCFox:srcSB5642BCLjPoFc

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bmdjzwd.com

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2480-92-0x0000000002460000-0x0000000002502000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
2660	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp
2516	virtualsoundcard32.exe
2480	virtualsoundcard32.exe

Loads dropped DLL 5 IoCs

pid	Process
1600	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.exe
2660	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp
2660	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp
2660	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp
2660	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp

Unexpected DNS network traffic destination 2 IoCs

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

description	ioc
Destination IP	141.98.234.31
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
2660	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 2660	1600	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.exe	28
PID 1600 wrote to memory of 2660	1600	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.exe	28
PID 1600 wrote to memory of 2660	1600	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.exe	28
PID 1600 wrote to memory of 2660	1600	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.exe	28
PID 1600 wrote to memory of 2660	1600	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.exe	28
PID 1600 wrote to memory of 2660	1600	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.exe	28
PID 1600 wrote to memory of 2660	1600	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.exe	28
PID 2660 wrote to memory of 2516	2660	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp	29
PID 2660 wrote to memory of 2516	2660	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp	29
PID 2660 wrote to memory of 2516	2660	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp	29
PID 2660 wrote to memory of 2516	2660	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp	29
PID 2660 wrote to memory of 2480	2660	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp	30
PID 2660 wrote to memory of 2480	2660	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp	30
PID 2660 wrote to memory of 2480	2660	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp	30
PID 2660 wrote to memory of 2480	2660	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp	30

C:\Users\Admin\AppData\Local\Temp\748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.exe
"C:\Users\Admin\AppData\Local\Temp\748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1600
- C:\Users\Admin\AppData\Local\Temp\is-DST7T.tmp\748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-DST7T.tmp\748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp" /SL5="$40016,4625728,54272,C:\Users\Admin\AppData\Local\Temp\748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2660
- - C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe
    "C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2516
- - C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe
    "C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2480

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\Temp\is-DST7T.tmp\748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp

Filesize
680KB

MD5
6d75c2498ef0af9a91b71d0d81d1b95e

SHA1
1476ec8e947af9a397658bec20b17854042cc0c3

SHA256
468db6dd9e5c87c34d9cb7e56ddbfaf068bbe44436fa2cfc2ada8029051e4bee

SHA512
bdc9b460a463da60c019eda9dd40929a61e77081b699d6c3a4c05309280252f7493015cf463243ff9dd3e20ddd324db39a8697f312fabfea64c78aed9ddb5027

Download Submit
\Users\Admin\AppData\Local\Temp\is-GE6OI.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-GE6OI.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe

Filesize
2.7MB

MD5
95fae9c80524563b049e1ef1eda77586

SHA1
b3896160dfbd0f15210bafbbdfe5dc8d3616d019

SHA256
b16987c18da4410cb4597a1ec55ab988c854fcdd263aca174909a5e80b4352b7

SHA512
03abbd67667831fc0efa1966cdc46ed9325c0bff5d03fcfc4af08cb4864bb7a546d3ee8bd2b705b2f157282184d119641f0348f3981b2da90701945777d5d9ad

Download Submit
memory/1600-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1600-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1600-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2480-92-0x0000000002460000-0x0000000002502000-memory.dmp

Filesize
648KB

Download
memory/2480-101-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2480-119-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2480-116-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2480-71-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2480-113-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2480-110-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2480-75-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2480-107-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2480-79-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2480-82-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2480-85-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2480-88-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2480-91-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2480-104-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2480-98-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2516-65-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2516-69-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2516-66-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2660-19-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2660-76-0x00000000033B0000-0x0000000003671000-memory.dmp

Filesize
2.8MB

Download
memory/2660-74-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2660-64-0x00000000033B0000-0x0000000003671000-memory.dmp

Filesize
2.8MB

Download

Analysis

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