socks5systemz | 8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581

General

Target

8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581.exe
Size

4.3MB
MD5

4a8f745c42d4fb16d79fbabbb8b8b075
SHA1

0e303a99ac9152ad97092b362a099a0eaafa8d3f
SHA256

8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581
SHA512

1405baeaca7083741f4b4f1dab3df2905d9ca34689cb152d3e2258dd9ee19b124006662c9a5bddbfceb5aa66d66bbdc8bf461eec28d21831386f4066cdcc1d9f
SSDEEP

98304:CUojlGNrjYxp1G2sYwX854ClL38w/dJc0k5uvRsUh4KmAQxV:68sp1G2szI4QA0DtQL

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bgzcdeu.com

http://bgzcdeu.com/search/?q=67e28dd86954a77d130eae167c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4be8889b5e4fa9281ae978a371ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608afd13c7e893993c

http://bgzcdeu.com/search/?q=67e28dd86954a77d130eae167c27d78406abdd88be4b12eab517aa5c96bd86ef91864e825a8bbc896c58e713bc90c91e36b5281fc235a925ed3e00d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7eb97983cca699511

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/3020-74-0x0000000000970000-0x0000000000A12000-memory.dmp	family_socks5systemz
behavioral2/memory/3020-98-0x0000000000970000-0x0000000000A12000-memory.dmp	family_socks5systemz
behavioral2/memory/3020-97-0x0000000000970000-0x0000000000A12000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Socks5systemz family
socks5systemz

Executes dropped EXE 3 IoCs

pid	Process
6124	8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581.tmp
404	mp3tagfreeedition.exe
3020	mp3tagfreeedition.exe

Loads dropped DLL 3 IoCs

pid	Process
6124	8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581.tmp
6124	8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581.tmp
6124	8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581.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	flow	ioc	pid	Process
Destination IP	39	141.98.234.31	3020	mp3tagfreeedition.exe

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

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mp3tagfreeedition.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mp3tagfreeedition.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
6124	8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2976 wrote to memory of 6124	2976	8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581.exe	86
PID 2976 wrote to memory of 6124	2976	8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581.exe	86
PID 2976 wrote to memory of 6124	2976	8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581.exe	86
PID 6124 wrote to memory of 404	6124	8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581.tmp	89
PID 6124 wrote to memory of 404	6124	8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581.tmp	89
PID 6124 wrote to memory of 404	6124	8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581.tmp	89
PID 6124 wrote to memory of 3020	6124	8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581.tmp	90
PID 6124 wrote to memory of 3020	6124	8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581.tmp	90
PID 6124 wrote to memory of 3020	6124	8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581.tmp	90

C:\Users\Admin\AppData\Local\Temp\8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581.exe
"C:\Users\Admin\AppData\Local\Temp\8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2976
- C:\Users\Admin\AppData\Local\Temp\is-ORHRK.tmp\8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-ORHRK.tmp\8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581.tmp" /SL5="$60092,4113969,54272,C:\Users\Admin\AppData\Local\Temp\8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:6124
- - C:\Users\Admin\AppData\Local\MP3 Tag Free Edition\mp3tagfreeedition.exe
    "C:\Users\Admin\AppData\Local\MP3 Tag Free Edition\mp3tagfreeedition.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:404
- - C:\Users\Admin\AppData\Local\MP3 Tag Free Edition\mp3tagfreeedition.exe
    "C:\Users\Admin\AppData\Local\MP3 Tag Free Edition\mp3tagfreeedition.exe" -s
    3⤵
    - Executes dropped EXE
    - Unexpected DNS network traffic destination
    - System Location Discovery: System Language Discovery
    PID:3020

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\MP3 Tag Free Edition\mp3tagfreeedition.exe

Filesize
2.4MB

MD5
cf0cb9685a2093b8daf261a666552a40

SHA1
34e3739b36720574f049d72d9d9c8457686a4217

SHA256
d86e83d383a85fbda6b9102a653f8bcc823178eb329a4d746c1711f34f4c14fc

SHA512
ee17055e46cf9b8cb130bdb9539f330845efa46b4296d027485f6d8dd55254c905d01f9d73457e56f84217bbca760929952c8745016e38b13d06297d12e7cfb9

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-KKE2K.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-KKE2K.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-ORHRK.tmp\8bc054584ee3b66aff2b8cec6800ea984321036528668ccc3ac1defef08ac581.tmp

Filesize
680KB

MD5
9aa42a5fe2d67b7702d7013ac521ff63

SHA1
d423615eae4b96edcc78d9adbf4f20c5f430eedb

SHA256
bab40b00dbee5f382a96b75fb37349cf98e68a4cbe5b847461f283ef8297b2b2

SHA512
32238bbc413c2e8ac9d6670162e1dde05ba265942cdea9a0869da06319c7021db76ae2a32512af508d793fd9b67569eb225d27858620d71cfe1bb1ac08b7ae96

Download Submit
memory/404-45-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/404-46-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/404-49-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2976-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2976-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2976-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3020-64-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3020-87-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3020-53-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3020-56-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3020-58-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3020-61-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3020-117-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3020-67-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3020-70-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3020-74-0x0000000000970000-0x0000000000A12000-memory.dmp

Filesize
648KB

Download
memory/3020-75-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3020-81-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3020-84-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3020-114-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3020-90-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3020-93-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3020-96-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3020-98-0x0000000000970000-0x0000000000A12000-memory.dmp

Filesize
648KB

Download
memory/3020-97-0x0000000000970000-0x0000000000A12000-memory.dmp

Filesize
648KB

Download
memory/3020-102-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3020-105-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3020-108-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3020-111-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/6124-54-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/6124-7-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

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