socks5systemz | 548ab8ae8f4bb83d0a55d05689e9695237882f567f25e72a5aac79b70845480a

General

Target

548ab8ae8f4bb83d0a55d05689e9695237882f567f25e72a5aac79b70845480a.exe
Size

4.0MB
MD5

b6a4d503871d781c0d67ae568ba2f690
SHA1

c8df0476d353c1259667d372b2f33f053f0c889c
SHA256

548ab8ae8f4bb83d0a55d05689e9695237882f567f25e72a5aac79b70845480a
SHA512

05e4e8442aa41cd4ecf00f6c7c6721752692b1f2ec7d9047d39f1bdd6b5a49eb58ade0372b534f63aad8539e3c5d52e1c533a5b0c7dfab35c7bca764041654cd
SSDEEP

98304:7arJyuI1299LWGA8v9I9nCDjMVw9XBWP2hphtJwm7eSoqO:ckuItGuFgqw9NDhom9y

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://ckitlfy.net/search/?q=67e28dd86809f27b415ba51b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa1de8889b5e4fa9281ae978a771ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ffc16c6ed929c38

http://ckitlfy.net/search/?q=67e28dd86809f27b415ba51b7c27d78406abdd88be4b12eab517aa5c96bd86ee9c824b815a8bbc896c58e713bc90c94836b5281fc235a925ed3e04d6bd974a95129070b616e96cc92be510b866db52bee348ee4c2b14a82966836f23d7f210c7ee969d3dcf689015

Signatures

Detect Socks5Systemz Payload 5 IoCs

resource	yara_rule
behavioral2/memory/1588-71-0x0000000000AB0000-0x0000000000B52000-memory.dmp	family_socks5systemz
behavioral2/memory/1588-74-0x0000000000AB0000-0x0000000000B52000-memory.dmp	family_socks5systemz
behavioral2/memory/1588-83-0x0000000000AB0000-0x0000000000B52000-memory.dmp	family_socks5systemz
behavioral2/memory/1588-96-0x0000000000AB0000-0x0000000000B52000-memory.dmp	family_socks5systemz
behavioral2/memory/1588-97-0x0000000000AB0000-0x0000000000B52000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
2232	is-JN12M.tmp
2884	freewaveeditor.exe
1588	freewaveeditor.exe

Loads dropped DLL 3 IoCs

pid	Process
2232	is-JN12M.tmp
2232	is-JN12M.tmp
2232	is-JN12M.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	ioc
Destination IP	152.89.198.214

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 WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4704 wrote to memory of 2232	4704	548ab8ae8f4bb83d0a55d05689e9695237882f567f25e72a5aac79b70845480a.exe	72
PID 4704 wrote to memory of 2232	4704	548ab8ae8f4bb83d0a55d05689e9695237882f567f25e72a5aac79b70845480a.exe	72
PID 4704 wrote to memory of 2232	4704	548ab8ae8f4bb83d0a55d05689e9695237882f567f25e72a5aac79b70845480a.exe	72
PID 2232 wrote to memory of 2884	2232	is-JN12M.tmp	73
PID 2232 wrote to memory of 2884	2232	is-JN12M.tmp	73
PID 2232 wrote to memory of 2884	2232	is-JN12M.tmp	73
PID 2232 wrote to memory of 1588	2232	is-JN12M.tmp	74
PID 2232 wrote to memory of 1588	2232	is-JN12M.tmp	74
PID 2232 wrote to memory of 1588	2232	is-JN12M.tmp	74

C:\Users\Admin\AppData\Local\Temp\548ab8ae8f4bb83d0a55d05689e9695237882f567f25e72a5aac79b70845480a.exe
"C:\Users\Admin\AppData\Local\Temp\548ab8ae8f4bb83d0a55d05689e9695237882f567f25e72a5aac79b70845480a.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4704
- C:\Users\Admin\AppData\Local\Temp\is-6VP6D.tmp\is-JN12M.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-6VP6D.tmp\is-JN12M.tmp" /SL4 $600DA "C:\Users\Admin\AppData\Local\Temp\548ab8ae8f4bb83d0a55d05689e9695237882f567f25e72a5aac79b70845480a.exe" 3884359 52224
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2232
- - C:\Users\Admin\AppData\Local\Free Wave Editor\freewaveeditor.exe
    "C:\Users\Admin\AppData\Local\Free Wave Editor\freewaveeditor.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2884
- - C:\Users\Admin\AppData\Local\Free Wave Editor\freewaveeditor.exe
    "C:\Users\Admin\AppData\Local\Free Wave Editor\freewaveeditor.exe" -s
    3⤵
    - Executes dropped EXE
    PID:1588

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Free Wave Editor\freewaveeditor.exe

Filesize
4.0MB

MD5
946775ce8c497efe609c103fd8a6cce2

SHA1
35f874fc19f0860bfd79f7a5ea29f9ad773d3f2b

SHA256
97c73697356ea267b2cec652564e335c15859e876503b10de65efad0256f4587

SHA512
1a022d9f99f567c5444b9dce7d52bc9eb526c4f1b1a4d4f846f533c29533c78fbf09caa5c25e1a1394e974315ffb0cd3e15323b19722c05a274f91bd7c77f39b

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-6VP6D.tmp\is-JN12M.tmp

Filesize
648KB

MD5
ba27acf39f1bc1f782b5ff3ffad2f527

SHA1
58da67551e533e5b22f8acc4178ebbeedc22b304

SHA256
c2a86a5d853d1e437993bbaf2243620265a840ce0d36e5bddecb801805911a7e

SHA512
c9fb586001f34059a10caf6c2d100c5b387c18482ac59400ec405c4849b041cdf6ae5fd9242e07ef7561f1d27f3b5709520cc0895303621625cbeac76ce77667

Download Submit
\Users\Admin\AppData\Local\Temp\is-4GDDQ.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-4GDDQ.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
memory/1588-62-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/1588-92-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/1588-116-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/1588-113-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/1588-110-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/1588-50-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/1588-107-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/1588-51-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/1588-104-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/1588-101-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/1588-54-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/1588-97-0x0000000000AB0000-0x0000000000B52000-memory.dmp

Filesize
648KB

Download
memory/1588-58-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/1588-59-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/1588-96-0x0000000000AB0000-0x0000000000B52000-memory.dmp

Filesize
648KB

Download
memory/1588-65-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/1588-68-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/1588-71-0x0000000000AB0000-0x0000000000B52000-memory.dmp

Filesize
648KB

Download
memory/1588-73-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/1588-74-0x0000000000AB0000-0x0000000000B52000-memory.dmp

Filesize
648KB

Download
memory/1588-79-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/1588-82-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/1588-83-0x0000000000AB0000-0x0000000000B52000-memory.dmp

Filesize
648KB

Download
memory/1588-86-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/1588-89-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/1588-95-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/2232-6-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/2232-55-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/2232-53-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download
memory/2884-47-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/2884-46-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/2884-43-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/2884-42-0x0000000000400000-0x000000000080C000-memory.dmp

Filesize
4.0MB

Download
memory/4704-0-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4704-52-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download

Analysis

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