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

ddrzrid.info

http://ddrzrid.info/search/?q=67e28dd86f08f27d120eff4b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa1fe8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff713c1e69d9a3e

http://ddrzrid.info/search/?q=67e28dd86f08f27d120eff4b7c27d78406abdd88be4b12eab517aa5c96bd86ef928044845a8bbc896c58e713bc90c94a36b5281fc235a925ed3e51d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9d983ac4679613

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/4220-87-0x00000000007F0000-0x0000000000892000-memory.dmp	family_socks5systemz
behavioral2/memory/4220-111-0x00000000007F0000-0x0000000000892000-memory.dmp	family_socks5systemz
behavioral2/memory/4220-112-0x00000000007F0000-0x0000000000892000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
3992	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp
4204	virtualsoundcard32.exe
4220	virtualsoundcard32.exe

Loads dropped DLL 1 IoCs

pid	Process
3992	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.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	141.98.234.31

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
3992	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3224 wrote to memory of 3992	3224	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.exe	80
PID 3224 wrote to memory of 3992	3224	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.exe	80
PID 3224 wrote to memory of 3992	3224	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.exe	80
PID 3992 wrote to memory of 4204	3992	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp	84
PID 3992 wrote to memory of 4204	3992	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp	84
PID 3992 wrote to memory of 4204	3992	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp	84
PID 3992 wrote to memory of 4220	3992	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp	85
PID 3992 wrote to memory of 4220	3992	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp	85
PID 3992 wrote to memory of 4220	3992	748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp	85

C:\Users\Admin\AppData\Local\Temp\748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.exe
"C:\Users\Admin\AppData\Local\Temp\748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3224
- C:\Users\Admin\AppData\Local\Temp\is-LDNPJ.tmp\748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-LDNPJ.tmp\748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp" /SL5="$70118,4625728,54272,C:\Users\Admin\AppData\Local\Temp\748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:3992
- - 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:4204
- - 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:4220

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\Temp\is-14FSI.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-LDNPJ.tmp\748acf5e2d770b17c35d1d5643ede9ab1c3a147f65b13dd00ed32fe0bc8c7de0.tmp

Filesize
680KB

MD5
6d75c2498ef0af9a91b71d0d81d1b95e

SHA1
1476ec8e947af9a397658bec20b17854042cc0c3

SHA256
468db6dd9e5c87c34d9cb7e56ddbfaf068bbe44436fa2cfc2ada8029051e4bee

SHA512
bdc9b460a463da60c019eda9dd40929a61e77081b699d6c3a4c05309280252f7493015cf463243ff9dd3e20ddd324db39a8697f312fabfea64c78aed9ddb5027

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

Filesize
2.7MB

MD5
95fae9c80524563b049e1ef1eda77586

SHA1
b3896160dfbd0f15210bafbbdfe5dc8d3616d019

SHA256
b16987c18da4410cb4597a1ec55ab988c854fcdd263aca174909a5e80b4352b7

SHA512
03abbd67667831fc0efa1966cdc46ed9325c0bff5d03fcfc4af08cb4864bb7a546d3ee8bd2b705b2f157282184d119641f0348f3981b2da90701945777d5d9ad

Download Submit
memory/3224-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3224-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3224-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3992-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3992-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4204-59-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4204-60-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4204-65-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4204-64-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4220-74-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4220-95-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4220-68-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4220-75-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4220-78-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4220-81-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4220-84-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4220-87-0x00000000007F0000-0x0000000000892000-memory.dmp

Filesize
648KB

Download
memory/4220-89-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4220-71-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4220-98-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4220-101-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4220-104-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4220-107-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4220-110-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4220-111-0x00000000007F0000-0x0000000000892000-memory.dmp

Filesize
648KB

Download
memory/4220-112-0x00000000007F0000-0x0000000000892000-memory.dmp

Filesize
648KB

Download
memory/4220-116-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4220-119-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download

Analysis

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