socks5systemz | e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8

General

Target

e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.exe
Size

4.6MB
MD5

79a0c9dd169084bbda8e90902c362dee
SHA1

0c33e09255aa26c031b535843e444a9050d0ccd1
SHA256

e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8
SHA512

9daf6108b4ae0ab0a592ac4d25cf0230ab4a72aedc9bc669e6bd29fbed11d19e39bbda5d514f62e96fff3b240bd996ed99523929e59980f4f19908db982948a2
SSDEEP

98304:mEnjMtTpIKKkfaynwB2vG8ttceYfBA+rxNmFnaQx:3MBCKoynwB2NttceYfBA+rxNGa0

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bwjacby.com

http://bwjacby.com/search/?q=67e28dd8685af379125bfd4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff712c2ec929b3e

http://bwjacby.com/search/?q=67e28dd8685af379125bfd4e7c27d78406abdd88be4b12eab517aa5c96bd86ee96854d895a8bbc896c58e713bc90c91c36b5281fc235a925ed3e51d6bd974a95129070b616e96cc92be510b866db52bee348ee4c2b14a82966836f23d7f210c7ee9d9939ce689713

Signatures

Detect Socks5Systemz Payload 5 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4156-84-0x0000000002800000-0x00000000028A2000-memory.dmp	family_socks5systemz
behavioral2/memory/4156-106-0x0000000002800000-0x00000000028A2000-memory.dmp	family_socks5systemz
behavioral2/memory/4156-107-0x0000000002800000-0x00000000028A2000-memory.dmp	family_socks5systemz
behavioral2/memory/4156-128-0x0000000002800000-0x00000000028A2000-memory.dmp	family_socks5systemz
behavioral2/memory/4156-129-0x0000000002800000-0x00000000028A2000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Executes dropped EXE 3 IoCs

Processes:

e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.tmpvirtualsoundcard32.exevirtualsoundcard32.exe

pid process

4208 e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.tmp
1436 virtualsoundcard32.exe
4156 virtualsoundcard32.exe
Loads dropped DLL 1 IoCs

Processes:

e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.tmp

pid process

4208 e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.tmp
Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

description ioc

Destination IP 45.155.250.90
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

Processes:

e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.tmp

pid process

4208 e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.tmp

pid	process
4208	e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.tmp
1436	virtualsoundcard32.exe
4156	virtualsoundcard32.exe

pid	process
4208	e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.tmp

description	ioc
Destination IP	45.155.250.90

pid	process
4208	e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.exee582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.tmp

description	pid	process	target process
PID 2304 wrote to memory of 4208	2304	e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.exe	e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.tmp
PID 2304 wrote to memory of 4208	2304	e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.exe	e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.tmp
PID 2304 wrote to memory of 4208	2304	e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.exe	e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.tmp
PID 4208 wrote to memory of 1436	4208	e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.tmp	virtualsoundcard32.exe
PID 4208 wrote to memory of 1436	4208	e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.tmp	virtualsoundcard32.exe
PID 4208 wrote to memory of 1436	4208	e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.tmp	virtualsoundcard32.exe
PID 4208 wrote to memory of 4156	4208	e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.tmp	virtualsoundcard32.exe
PID 4208 wrote to memory of 4156	4208	e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.tmp	virtualsoundcard32.exe
PID 4208 wrote to memory of 4156	4208	e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.tmp	virtualsoundcard32.exe

C:\Users\Admin\AppData\Local\Temp\e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.exe
"C:\Users\Admin\AppData\Local\Temp\e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2304

C:\Users\Admin\AppData\Local\Temp\is-PJ00N.tmp\e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.tmp
"C:\Users\Admin\AppData\Local\Temp\is-PJ00N.tmp\e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.tmp" /SL5="$5022C,4581458,54272,C:\Users\Admin\AppData\Local\Temp\e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4208

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:1436

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:4156

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-PJ00N.tmp\e582cc4c7f73762deb1f0e1fb34b168484062dc10c3e073e0c4edd677553fdd8.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
0ba5bcd4d3c7b1a0f45b48b24263c771

SHA1
4cad1fb837415f61f25865a457426ca40a4ea1c1

SHA256
a110cc6eac20645c6a0923d7608eeb82612353df742c186e2cb84f5ddcece34a

SHA512
9a639de1b1ac1a3c6784d7ba4b9b6a39536f41a0a294e20f63aa0dbb18bb9d6a922c48f8b3d3c633aff374ddb2b07dc9f877d2a9d63eadc69cb481ee77098956

Download Submit
\Users\Admin\AppData\Local\Temp\is-LBS7M.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/1436-59-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/1436-60-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/1436-63-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2304-67-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2304-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2304-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4156-81-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4156-115-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4156-129-0x0000000002800000-0x00000000028A2000-memory.dmp

Filesize
648KB

Download
memory/4156-69-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4156-72-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4156-75-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4156-78-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4156-128-0x0000000002800000-0x00000000028A2000-memory.dmp

Filesize
648KB

Download
memory/4156-84-0x0000000002800000-0x00000000028A2000-memory.dmp

Filesize
648KB

Download
memory/4156-86-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4156-91-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4156-94-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4156-97-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4156-100-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4156-103-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4156-106-0x0000000002800000-0x00000000028A2000-memory.dmp

Filesize
648KB

Download
memory/4156-107-0x0000000002800000-0x00000000028A2000-memory.dmp

Filesize
648KB

Download
memory/4156-108-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4156-112-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4156-65-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4156-118-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4156-121-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4156-124-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4156-127-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4208-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4208-68-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

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