socks5systemz | 1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5

General

Target

1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.exe
Size

4.9MB
MD5

1474c5d842d1a4ba2c592930a42c3a80
SHA1

223db78270bb75a60d47586974c97bfdb0556ba1
SHA256

1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5
SHA512

9ac4c9aa4d182fa5abb039e04066535cd43b58f2315b41127e116efb827e78dae146516818d42e7b6d8beef17a6f55a234b68c7f9457e65e02b059117785a7d4
SSDEEP

98304:mln9CPsrHDI8ksDtHnEvHohXESl1QGMFFEit915vL5Jk2IVMJcll:MnkBJsdnlhUSl1SlUfll

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bobbexu.com

http://bobbexu.com/search/?q=67e28dd83954f07a4008f8497c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ae8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff718c2ed97993a

http://bobbexu.com/search/?q=67e28dd83954f07a4008f8497c27d78406abdd88be4b12eab517aa5c96bd86ef97844d825a8bbc896c58e713bc90c91f36b5281fc235a925ed3e5cd6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9d9339cf6d9517

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1448-86-0x0000000002880000-0x0000000002922000-memory.dmp	family_socks5systemz
behavioral1/memory/1448-110-0x0000000002880000-0x0000000002922000-memory.dmp	family_socks5systemz
behavioral1/memory/1448-111-0x0000000002880000-0x0000000002922000-memory.dmp	family_socks5systemz

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

Processes:

1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmpstarsaudioconverter32.exestarsaudioconverter32.exe

pid process

2692 1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp
804 starsaudioconverter32.exe
1448 starsaudioconverter32.exe
Loads dropped DLL 1 IoCs

Processes:

1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp

pid process

2692 1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.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:

1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp

pid process

2692 1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp

pid	process
2692	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp
804	starsaudioconverter32.exe
1448	starsaudioconverter32.exe

pid	process
2692	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp

description	ioc
Destination IP	45.155.250.90

pid	process
2692	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.exe1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp

description	pid	process	target process
PID 1700 wrote to memory of 2692	1700	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.exe	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp
PID 1700 wrote to memory of 2692	1700	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.exe	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp
PID 1700 wrote to memory of 2692	1700	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.exe	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp
PID 2692 wrote to memory of 804	2692	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp	starsaudioconverter32.exe
PID 2692 wrote to memory of 804	2692	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp	starsaudioconverter32.exe
PID 2692 wrote to memory of 804	2692	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp	starsaudioconverter32.exe
PID 2692 wrote to memory of 1448	2692	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp	starsaudioconverter32.exe
PID 2692 wrote to memory of 1448	2692	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp	starsaudioconverter32.exe
PID 2692 wrote to memory of 1448	2692	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp	starsaudioconverter32.exe

C:\Users\Admin\AppData\Local\Temp\1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.exe
"C:\Users\Admin\AppData\Local\Temp\1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1700

C:\Users\Admin\AppData\Local\Temp\is-C72HH.tmp\1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp
"C:\Users\Admin\AppData\Local\Temp\is-C72HH.tmp\1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp" /SL5="$40248,4863554,54272,C:\Users\Admin\AppData\Local\Temp\1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2692

C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe
"C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe" -i
3⤵
- Executes dropped EXE
PID:804

C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe
"C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe" -s
3⤵
- Executes dropped EXE
PID:1448

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe
Filesize
2.4MB

MD5
c9d0cf9a565c8f17d8e33bc137e2c0e9

SHA1
000a2ac7570380d14b51e35742ce0678c922c7b9

SHA256
ac2e61a91dec6e911887f646632e8fb571988752002d105de19b23b1e338346a

SHA512
c880b6df08966eddf545c9e680f44fc2473b55f387b8551b7e00a733df617dd5c0d4c8ad3ea49beac7e485a036b4189199127c606445a425d5096c7cd4b2187a

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-C72HH.tmp\1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp
Filesize
680KB

MD5
e805fd8d14185debe4999b420e788690

SHA1
014b87617a2f2c62530ec2da91a5be0d8078c098

SHA256
720ee272d4e0d2c13caaa0051d875437161f82df74152144276e87f694712a3c

SHA512
33b68c21ef3f6ea17736ff45881019e363abc2df83ae4c1399bb3b3466199b06731bdd45c0852cad33408b54371cb9a9a574ec3445dd5030f6e56306f1e81dbf

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

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/804-63-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/804-60-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/804-65-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/804-59-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/1448-74-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/1448-86-0x0000000002880000-0x0000000002922000-memory.dmp

Filesize
648KB

Download
memory/1448-68-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/1448-118-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/1448-115-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/1448-111-0x0000000002880000-0x0000000002922000-memory.dmp

Filesize
648KB

Download
memory/1448-71-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/1448-110-0x0000000002880000-0x0000000002922000-memory.dmp

Filesize
648KB

Download
memory/1448-77-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/1448-80-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/1448-83-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/1448-109-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/1448-89-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/1448-94-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/1448-97-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/1448-100-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/1448-103-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/1448-106-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/1700-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1700-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1700-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2692-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2692-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

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