socks5systemz | 572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02

General

Target

572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.exe
Size

2.0MB
MD5

5eed498099af9c5342943763aa514f4f
SHA1

83d5b278c3a55518d0f5c44da02a83b77844f8b1
SHA256

572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02
SHA512

697ecd84aa05900f5982fdedc8fccbcae61bf2328a75cb8b04c2cc6949d1fa34e7d76b4381fc4ad0707dbb2d774d212142b6ec2105a53634ea121eee34d34f27
SSDEEP

49152:32nRKkmt/A6k8TnqNxHhZOUhd0VFAWXjB17OMO5h+z5:mnRK3Y6NTqNrTWTB1xUh+9

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

ejaruuo.ua

http://ejaruuo.ua/search/?q=67e28dd86d0ff42e4008ab1f7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa48e8889b5e4fa9281ae978fe71ea771795af8e05c646db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608afd13c7ef90983e

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3796-74-0x0000000002890000-0x0000000002932000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
2352	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp
2472	markdownpad32.exe
3796	markdownpad32.exe

Loads dropped DLL 3 IoCs

pid	Process
2352	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp
2352	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp
2352	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp

Unexpected DNS network traffic destination 3 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	flow	ioc	pid	Process
Destination IP	41	152.89.198.214	3796	markdownpad32.exe
Destination IP	43	152.89.198.214	3796	markdownpad32.exe
Destination IP	44	91.211.247.248	3796	markdownpad32.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 3 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	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	markdownpad32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 5264 wrote to memory of 2352	5264	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.exe	85
PID 5264 wrote to memory of 2352	5264	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.exe	85
PID 5264 wrote to memory of 2352	5264	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.exe	85
PID 2352 wrote to memory of 2472	2352	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp	88
PID 2352 wrote to memory of 2472	2352	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp	88
PID 2352 wrote to memory of 2472	2352	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp	88
PID 2352 wrote to memory of 3796	2352	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp	89
PID 2352 wrote to memory of 3796	2352	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp	89
PID 2352 wrote to memory of 3796	2352	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp	89

C:\Users\Admin\AppData\Local\Temp\572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.exe
"C:\Users\Admin\AppData\Local\Temp\572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5264
- C:\Users\Admin\AppData\Local\Temp\is-8MKUV.tmp\572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-8MKUV.tmp\572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp" /SL5="$60092,1707797,54272,C:\Users\Admin\AppData\Local\Temp\572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2352
- - C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe
    "C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2472
- - C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe
    "C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe" -s
    3⤵
    - Executes dropped EXE
    - Unexpected DNS network traffic destination
    - System Location Discovery: System Language Discovery
    PID:3796

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\MarkDownPad\markdownpad32.exe

Filesize
1.9MB

MD5
480b39767fee082b277f05763f595cf1

SHA1
b595e37cd850c73eacd2bbe7ebd3bf03f303a07d

SHA256
2b218942b343ab2775a4e764f375719adf7b041b2d8a05ee6c136dfb889cda5a

SHA512
feb44d3344667db80f5338bffc3c3dde6af481babcf6b17956790643fafc80b39324d7b9f239cb92aa273d90de55e8f39bfaebf573b2c89cafc72dc801e75d9c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-8MKUV.tmp\572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp

Filesize
677KB

MD5
860796372827cb397528d6bcfbde3dbc

SHA1
9fec7f4dafceeb40192e5cadaafde135aa91b801

SHA256
17b3b1b9ef2f50b67b4985fb491fa564184b54a5eccbe65ef6514bdfce77f26c

SHA512
50d69fb433230a0c32e5c119d8453036cba209df8be63ae3b86b67d0f197172a0ef509dfdba85d2dac62fbf0ca6e49dff1ea13f7c8604f542158f5a4886c84a8

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-LDHA6.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-LDHA6.tmp\_isetup\_isdecmp.dll

Filesize
32KB

MD5
b6f11a0ab7715f570f45900a1fe84732

SHA1
77b1201e535445af5ea94c1b03c0a1c34d67a77b

SHA256
e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

SHA512
78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

Download Submit
memory/2352-54-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2352-7-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2472-49-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2472-44-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2472-45-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2472-50-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/3796-67-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/3796-81-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/3796-118-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/3796-55-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/3796-115-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/3796-58-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/3796-61-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/3796-64-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/3796-112-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/3796-70-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/3796-73-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/3796-74-0x0000000002890000-0x0000000002932000-memory.dmp

Filesize
648KB

Download
memory/3796-80-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/3796-53-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/3796-84-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/3796-87-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/3796-90-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/3796-93-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/3796-96-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/3796-99-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/3796-102-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/3796-106-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/3796-109-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/5264-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5264-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5264-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

Analysis

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