socks5systemz | 5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b

General

Target

5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.exe
Size

4.6MB
MD5

35c8bb7cce14fc66dbc5fa6aad33129d
SHA1

d42b60692a8ff77e9e231d3ff9daa9557c760abd
SHA256

5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b
SHA512

84b3b8839f47af19910cade50752ec6fcad2980cb39140418a00f667015540da4d91f8b063463ff1c55ea913a65d673968633fc63b6d61d471bf126d9af3334c
SSDEEP

98304:m5DdcnzCZ8SpS8x0UtTISnsKPTaRXaTp78FXvzkn6qx:yDyzPSvftUSnVPeRXkp7GLO6m

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

ebnslue.ua

http://ebnslue.ua/search/?q=67e28dd8690ba728400aae4c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff712c1e6939c3c

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4748-84-0x00000000009D0000-0x0000000000A72000-memory.dmp	family_socks5systemz

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

Processes:

5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.tmpvirtualsoundcard32.exevirtualsoundcard32.exe

pid process

2272 5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.tmp
4356 virtualsoundcard32.exe
4748 virtualsoundcard32.exe
Loads dropped DLL 1 IoCs

Processes:

5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.tmp

pid process

2272 5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.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 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

Processes:

5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.tmp

pid process

2272 5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.tmp

pid	process
2272	5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.tmp
4356	virtualsoundcard32.exe
4748	virtualsoundcard32.exe

pid	process
2272	5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.tmp

description	ioc
Destination IP	141.98.234.31

pid	process
2272	5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.exe5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.tmp

description	pid	process	target process
PID 2840 wrote to memory of 2272	2840	5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.exe	5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.tmp
PID 2840 wrote to memory of 2272	2840	5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.exe	5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.tmp
PID 2840 wrote to memory of 2272	2840	5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.exe	5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.tmp
PID 2272 wrote to memory of 4356	2272	5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.tmp	virtualsoundcard32.exe
PID 2272 wrote to memory of 4356	2272	5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.tmp	virtualsoundcard32.exe
PID 2272 wrote to memory of 4356	2272	5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.tmp	virtualsoundcard32.exe
PID 2272 wrote to memory of 4748	2272	5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.tmp	virtualsoundcard32.exe
PID 2272 wrote to memory of 4748	2272	5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.tmp	virtualsoundcard32.exe
PID 2272 wrote to memory of 4748	2272	5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.tmp	virtualsoundcard32.exe

C:\Users\Admin\AppData\Local\Temp\5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.exe
"C:\Users\Admin\AppData\Local\Temp\5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2840

C:\Users\Admin\AppData\Local\Temp\is-9B6LG.tmp\5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.tmp
"C:\Users\Admin\AppData\Local\Temp\is-9B6LG.tmp\5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.tmp" /SL5="$1501D2,4604662,54272,C:\Users\Admin\AppData\Local\Temp\5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2272

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:4356

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:4748

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\is-9B6LG.tmp\5a80fc3e154a1f5966d16e6e91068f4c8dd8f58d385f3f32dbdc3cec3350e65b.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
dc73262d1bf661b44bcac90788280a8e

SHA1
c633e1ffd703420195ebdb6a20f1ffece228f181

SHA256
019028cf30ad82460bca9272dabc19961585074fc994dca37dca0bb4bad88d2a

SHA512
f8a5e025b8a318f6a351e9557b5385fa7c63c7c3431cb3a09c5856747c93d726f792dea73fe704029575192d164a4daeb74a2711079677831ec5a651b73803b1

Download Submit
\Users\Admin\AppData\Local\Temp\is-2KN3S.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/2272-68-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2272-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2840-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2840-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2840-67-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4356-59-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4356-60-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4356-63-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4748-81-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4748-100-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4748-72-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4748-75-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4748-78-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4748-66-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4748-84-0x00000000009D0000-0x0000000000A72000-memory.dmp

Filesize
648KB

Download
memory/4748-88-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4748-91-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4748-94-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4748-97-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4748-69-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4748-103-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4748-106-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4748-110-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4748-113-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4748-116-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4748-119-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4748-122-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4748-125-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/4748-130-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download

Analysis

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