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

ebiugvo.ua

http://ebiugvo.ua/search/?q=67e28dd86e0ca029110da84e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c646db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923f658cf811c5ed92

http://ebiugvo.ua/search/?q=67e28dd86e0ca029110da84e7c27d78406abdd88be4b12eab517aa5c96bd86e99d8e4f825a8bbc896c58e713bc90c91936b5281fc235a925ed3e01d6bd974a95129070b615e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff815c2ed929a3ecf68

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/2188-76-0x0000000002360000-0x0000000002402000-memory.dmp	family_socks5systemz
behavioral1/memory/2188-98-0x0000000002360000-0x0000000002402000-memory.dmp	family_socks5systemz
behavioral1/memory/2188-99-0x0000000002360000-0x0000000002402000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
1708	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp
2824	markdownpad32.exe
2188	markdownpad32.exe

Loads dropped DLL 6 IoCs

pid	Process
1692	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.exe
1708	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp
1708	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp
1708	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp
1708	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp
1708	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.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	2	91.211.247.248	2188	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 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	markdownpad32.exe
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 15 IoCs

description	pid	Process	procid_target
PID 1692 wrote to memory of 1708	1692	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.exe	30
PID 1692 wrote to memory of 1708	1692	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.exe	30
PID 1692 wrote to memory of 1708	1692	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.exe	30
PID 1692 wrote to memory of 1708	1692	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.exe	30
PID 1692 wrote to memory of 1708	1692	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.exe	30
PID 1692 wrote to memory of 1708	1692	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.exe	30
PID 1692 wrote to memory of 1708	1692	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.exe	30
PID 1708 wrote to memory of 2824	1708	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp	31
PID 1708 wrote to memory of 2824	1708	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp	31
PID 1708 wrote to memory of 2824	1708	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp	31
PID 1708 wrote to memory of 2824	1708	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp	31
PID 1708 wrote to memory of 2188	1708	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp	32
PID 1708 wrote to memory of 2188	1708	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp	32
PID 1708 wrote to memory of 2188	1708	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp	32
PID 1708 wrote to memory of 2188	1708	572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp	32

C:\Users\Admin\AppData\Local\Temp\572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.exe
"C:\Users\Admin\AppData\Local\Temp\572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1692
- C:\Users\Admin\AppData\Local\Temp\is-OC0AS.tmp\572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-OC0AS.tmp\572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp" /SL5="$40016,1707797,54272,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:1708
- - C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe
    "C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2824
- - 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:2188

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
\Users\Admin\AppData\Local\Temp\is-1PVD8.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-1PVD8.tmp\_isetup\_isdecmp.dll

Filesize
32KB

MD5
b6f11a0ab7715f570f45900a1fe84732

SHA1
77b1201e535445af5ea94c1b03c0a1c34d67a77b

SHA256
e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

SHA512
78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

Download Submit
\Users\Admin\AppData\Local\Temp\is-1PVD8.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-OC0AS.tmp\572bc11bdfc00fadcb0cb4dcb65e0fb1e5e0d905c3af25e57cdd747a8c90af02.tmp

Filesize
677KB

MD5
860796372827cb397528d6bcfbde3dbc

SHA1
9fec7f4dafceeb40192e5cadaafde135aa91b801

SHA256
17b3b1b9ef2f50b67b4985fb491fa564184b54a5eccbe65ef6514bdfce77f26c

SHA512
50d69fb433230a0c32e5c119d8453036cba209df8be63ae3b86b67d0f197172a0ef509dfdba85d2dac62fbf0ca6e49dff1ea13f7c8604f542158f5a4886c84a8

Download Submit
memory/1692-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1692-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1692-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1708-56-0x0000000003730000-0x0000000003916000-memory.dmp

Filesize
1.9MB

Download
memory/1708-9-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/1708-46-0x0000000003730000-0x0000000003916000-memory.dmp

Filesize
1.9MB

Download
memory/1708-55-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2188-94-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2188-88-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2188-118-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2188-59-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2188-60-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2188-63-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2188-66-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2188-69-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2188-72-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2188-75-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2188-76-0x0000000002360000-0x0000000002402000-memory.dmp

Filesize
648KB

Download
memory/2188-82-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2188-85-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2188-115-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2188-91-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2188-112-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2188-97-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2188-98-0x0000000002360000-0x0000000002402000-memory.dmp

Filesize
648KB

Download
memory/2188-99-0x0000000002360000-0x0000000002402000-memory.dmp

Filesize
648KB

Download
memory/2188-103-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2188-106-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2188-109-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2824-47-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2824-52-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download
memory/2824-48-0x0000000000400000-0x00000000005E6000-memory.dmp

Filesize
1.9MB

Download

Analysis

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