socks5systemz | 620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c

General

Target

620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c.exe
Size

2.0MB
MD5

7a698634ca19583a33eebad7e816507f
SHA1

9e364dd9cef263ee9c151c2073bb8fdf89860daf
SHA256

620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c
SHA512

f878e81c9d188ea3e3b2a596b1054ea55ab637fa34d2bd6ea149788e7deb1493c23a8a3e6d183f97f49b3c21e9944dd10fb04c57db05a32feda7a7a1a674b416
SSDEEP

49152:32Jr4PzdBoeI9VEwYY1tfIpgiPuY2AOkjVCJhC0iYz0C:mkzQ9VjTfo1PuY5OsVMz0C

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

ckhxoyb.net

http://ckhxoyb.net/search/?q=67e28dd86558fa2d4658af497c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978fe71ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608afd13c7ee969233

http://ckhxoyb.net/search/?q=67e28dd86558fa2d4658af497c27d78406abdd88be4b12eab517aa5c96bd86e99d814d875a8bbc896c58e713bc90c91b36b5281fc235a925ed3e5dd6bd974a95129070b611e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7eb97983ccc6c9e1e

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/5464-73-0x0000000000830000-0x00000000008D2000-memory.dmp	family_socks5systemz
behavioral2/memory/5464-96-0x0000000000830000-0x00000000008D2000-memory.dmp	family_socks5systemz
behavioral2/memory/5464-97-0x0000000000830000-0x00000000008D2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
224	620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c.tmp
5612	htmlpadhunter.exe
5464	htmlpadhunter.exe

Loads dropped DLL 3 IoCs

pid	Process
224	620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c.tmp
224	620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c.tmp
224	620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c.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	41	45.155.250.90	5464	htmlpadhunter.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	620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	htmlpadhunter.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	htmlpadhunter.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 224	2972	620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c.exe	87
PID 2972 wrote to memory of 224	2972	620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c.exe	87
PID 2972 wrote to memory of 224	2972	620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c.exe	87
PID 224 wrote to memory of 5612	224	620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c.tmp	89
PID 224 wrote to memory of 5612	224	620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c.tmp	89
PID 224 wrote to memory of 5612	224	620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c.tmp	89
PID 224 wrote to memory of 5464	224	620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c.tmp	90
PID 224 wrote to memory of 5464	224	620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c.tmp	90
PID 224 wrote to memory of 5464	224	620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c.tmp	90

C:\Users\Admin\AppData\Local\Temp\620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c.exe
"C:\Users\Admin\AppData\Local\Temp\620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2972
- C:\Users\Admin\AppData\Local\Temp\is-NF8MS.tmp\620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-NF8MS.tmp\620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c.tmp" /SL5="$80288,1723310,54272,C:\Users\Admin\AppData\Local\Temp\620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:224
- - C:\Users\Admin\AppData\Local\HTML Pad Hunter\htmlpadhunter.exe
    "C:\Users\Admin\AppData\Local\HTML Pad Hunter\htmlpadhunter.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5612
- - C:\Users\Admin\AppData\Local\HTML Pad Hunter\htmlpadhunter.exe
    "C:\Users\Admin\AppData\Local\HTML Pad Hunter\htmlpadhunter.exe" -s
    3⤵
    - Executes dropped EXE
    - Unexpected DNS network traffic destination
    - System Location Discovery: System Language Discovery
    PID:5464

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

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Downloads

C:\Users\Admin\AppData\Local\HTML Pad Hunter\htmlpadhunter.exe

Filesize
1.8MB

MD5
decf3f16b1811796c32efd294b92e4a6

SHA1
09446ace5116834877e6a707a42c09c20eaa1a29

SHA256
54cd5048f145572cb2331a3a5afdd3e534942be4ef0c8d9391debc44b8e687a2

SHA512
ffbe85b0a2b9be52379b3d1ac80de8576a3b310f639fbf4f13047c559765d0e75a180273ef07624caab0077590f3bb66aadd5c5ade23405c80979fee87bf0aef

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-IC8TL.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-IC8TL.tmp\_isetup\_isdecmp.dll

Filesize
32KB

MD5
b6f11a0ab7715f570f45900a1fe84732

SHA1
77b1201e535445af5ea94c1b03c0a1c34d67a77b

SHA256
e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

SHA512
78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-NF8MS.tmp\620aa8dfa0afd88a9946d2892facbf5748c1a79c2312dab507dd061d09905e5c.tmp

Filesize
677KB

MD5
0df25036e1a46f94d73b80bd52bad68d

SHA1
020466c201b3c1eda6f03b3422ddfbcc94793280

SHA256
ea0e88c2c732e9f2f759522936b1b985457dfa86019627429400f51f53d99773

SHA512
e6df960531d057390c2b8e2c912f393e1c0790f2712fd70336fc108e7dd05df7372764188947904e5266507b28b5cd2585ad0f8973f5c59346873bb90201526c

Download Submit
memory/224-53-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/224-7-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2972-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2972-1-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2972-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5464-95-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download
memory/5464-80-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download
memory/5464-52-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download
memory/5464-116-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download
memory/5464-113-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download
memory/5464-56-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download
memory/5464-57-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download
memory/5464-60-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download
memory/5464-63-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download
memory/5464-66-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download
memory/5464-69-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download
memory/5464-74-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download
memory/5464-73-0x0000000000830000-0x00000000008D2000-memory.dmp

Filesize
648KB

Download
memory/5464-110-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download
memory/5464-83-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download
memory/5464-86-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download
memory/5464-89-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download
memory/5464-92-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download
memory/5464-107-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download
memory/5464-96-0x0000000000830000-0x00000000008D2000-memory.dmp

Filesize
648KB

Download
memory/5464-97-0x0000000000830000-0x00000000008D2000-memory.dmp

Filesize
648KB

Download
memory/5464-101-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download
memory/5464-104-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download
memory/5612-44-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download
memory/5612-49-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download
memory/5612-45-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download
memory/5612-48-0x0000000000400000-0x00000000005C5000-memory.dmp

Filesize
1.8MB

Download

Analysis

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