socks5systemz | bbc137e2faad69112caff067b1661539be3c9bdeac81044cd531f5bfe3f0883c

General

Target

bbc137e2faad69112caff067b1661539be3c9bdeac81044cd531f5bfe3f0883c.exe
Size

6.1MB
MD5

c0003f5334845b5ac61f353f711f84ad
SHA1

c4903adfded77fd5cb673bdd0ddd82acfc35a31d
SHA256

bbc137e2faad69112caff067b1661539be3c9bdeac81044cd531f5bfe3f0883c
SHA512

205fc95ce47f6588ea4aa5d5d45c33fc0cac5cc3f278017e36875ef138b26c8faf02ece2b636bd506b05f2a66b54761c2d69c041a7e3009cc83b98b18acc5997
SSDEEP

196608:9olc8dn7Lw31otp3LHnxeaFuKxn0q1qwSnZbfRrhh:58ho34VLHnxea8Ktxq/npRrz

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 4 IoCs

resource	yara_rule
behavioral2/memory/1332-85-0x0000000002700000-0x00000000027A2000-memory.dmp	family_socks5systemz
behavioral2/memory/1332-112-0x0000000002700000-0x00000000027A2000-memory.dmp	family_socks5systemz
behavioral2/memory/1332-111-0x0000000002700000-0x00000000027A2000-memory.dmp	family_socks5systemz
behavioral2/memory/1332-113-0x0000000002700000-0x00000000027A2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
5088	bbc137e2faad69112caff067b1661539be3c9bdeac81044cd531f5bfe3f0883c.tmp
4004	freeaudioamplifier.exe
1332	freeaudioamplifier.exe

Loads dropped DLL 1 IoCs

pid	Process
5088	bbc137e2faad69112caff067b1661539be3c9bdeac81044cd531f5bfe3f0883c.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	45.155.250.90

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 FindShellTrayWindow 1 IoCs

pid	Process
5088	bbc137e2faad69112caff067b1661539be3c9bdeac81044cd531f5bfe3f0883c.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 5088	2388	bbc137e2faad69112caff067b1661539be3c9bdeac81044cd531f5bfe3f0883c.exe	77
PID 2388 wrote to memory of 5088	2388	bbc137e2faad69112caff067b1661539be3c9bdeac81044cd531f5bfe3f0883c.exe	77
PID 2388 wrote to memory of 5088	2388	bbc137e2faad69112caff067b1661539be3c9bdeac81044cd531f5bfe3f0883c.exe	77
PID 5088 wrote to memory of 4004	5088	bbc137e2faad69112caff067b1661539be3c9bdeac81044cd531f5bfe3f0883c.tmp	78
PID 5088 wrote to memory of 4004	5088	bbc137e2faad69112caff067b1661539be3c9bdeac81044cd531f5bfe3f0883c.tmp	78
PID 5088 wrote to memory of 4004	5088	bbc137e2faad69112caff067b1661539be3c9bdeac81044cd531f5bfe3f0883c.tmp	78
PID 5088 wrote to memory of 1332	5088	bbc137e2faad69112caff067b1661539be3c9bdeac81044cd531f5bfe3f0883c.tmp	79
PID 5088 wrote to memory of 1332	5088	bbc137e2faad69112caff067b1661539be3c9bdeac81044cd531f5bfe3f0883c.tmp	79
PID 5088 wrote to memory of 1332	5088	bbc137e2faad69112caff067b1661539be3c9bdeac81044cd531f5bfe3f0883c.tmp	79

C:\Users\Admin\AppData\Local\Temp\bbc137e2faad69112caff067b1661539be3c9bdeac81044cd531f5bfe3f0883c.exe
"C:\Users\Admin\AppData\Local\Temp\bbc137e2faad69112caff067b1661539be3c9bdeac81044cd531f5bfe3f0883c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Users\Admin\AppData\Local\Temp\is-8QRNF.tmp\bbc137e2faad69112caff067b1661539be3c9bdeac81044cd531f5bfe3f0883c.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-8QRNF.tmp\bbc137e2faad69112caff067b1661539be3c9bdeac81044cd531f5bfe3f0883c.tmp" /SL5="$40234,6168457,54272,C:\Users\Admin\AppData\Local\Temp\bbc137e2faad69112caff067b1661539be3c9bdeac81044cd531f5bfe3f0883c.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:5088
- - C:\Users\Admin\AppData\Local\Free Audio Amplifier\freeaudioamplifier.exe
    "C:\Users\Admin\AppData\Local\Free Audio Amplifier\freeaudioamplifier.exe" -i
    3⤵
    - Executes dropped EXE
    PID:4004
- - C:\Users\Admin\AppData\Local\Free Audio Amplifier\freeaudioamplifier.exe
    "C:\Users\Admin\AppData\Local\Free Audio Amplifier\freeaudioamplifier.exe" -s
    3⤵
    - Executes dropped EXE
    PID:1332

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Free Audio Amplifier\freeaudioamplifier.exe

Filesize
4.9MB

MD5
d1b23e05bcce447e7996c3152029a41e

SHA1
b873aead91f81675f3c758dd7588961559403bf8

SHA256
a45fa3d42741e0c466c7531f9e1ef65e71701bfaed1ff8827d729916e503ff13

SHA512
91e865932fbb2a1c82039a0e56d27c570153be431223eee35ff89454a30a8a3d5931e7b54899dec95783cc3ae69d35fd5e93b150d6962ba3e3e09fd2d2bde99e

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-8QRNF.tmp\bbc137e2faad69112caff067b1661539be3c9bdeac81044cd531f5bfe3f0883c.tmp

Filesize
680KB

MD5
3d09389437b4fe49052b70b1fbb44c60

SHA1
d978838aee9debc8b0f646d22ae801a688f170ce

SHA256
e41f94f31e003d1f1ec68b75353a150a9100856d2a8af8d62f441d3118bf8496

SHA512
a273ee0d92fb78b3be6109f3cc54413c5db1f318bbd9e76d3aa0233ee25dca14c346510fb708e3536c6ffda79d032b4517bd33ae8ef7b9cb5f17b4d28ea07599

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-M9BQR.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/1332-104-0x0000000000400000-0x00000000008E2000-memory.dmp

Filesize
4.9MB

Download
memory/1332-107-0x0000000000400000-0x00000000008E2000-memory.dmp

Filesize
4.9MB

Download
memory/1332-120-0x0000000000400000-0x00000000008E2000-memory.dmp

Filesize
4.9MB

Download
memory/1332-117-0x0000000000400000-0x00000000008E2000-memory.dmp

Filesize
4.9MB

Download
memory/1332-113-0x0000000002700000-0x00000000027A2000-memory.dmp

Filesize
648KB

Download
memory/1332-111-0x0000000002700000-0x00000000027A2000-memory.dmp

Filesize
648KB

Download
memory/1332-112-0x0000000002700000-0x00000000027A2000-memory.dmp

Filesize
648KB

Download
memory/1332-68-0x0000000000400000-0x00000000008E2000-memory.dmp

Filesize
4.9MB

Download
memory/1332-110-0x0000000000400000-0x00000000008E2000-memory.dmp

Filesize
4.9MB

Download
memory/1332-85-0x0000000002700000-0x00000000027A2000-memory.dmp

Filesize
648KB

Download
memory/1332-71-0x0000000000400000-0x00000000008E2000-memory.dmp

Filesize
4.9MB

Download
memory/1332-72-0x0000000000400000-0x00000000008E2000-memory.dmp

Filesize
4.9MB

Download
memory/1332-75-0x0000000000400000-0x00000000008E2000-memory.dmp

Filesize
4.9MB

Download
memory/1332-78-0x0000000000400000-0x00000000008E2000-memory.dmp

Filesize
4.9MB

Download
memory/1332-101-0x0000000000400000-0x00000000008E2000-memory.dmp

Filesize
4.9MB

Download
memory/1332-98-0x0000000000400000-0x00000000008E2000-memory.dmp

Filesize
4.9MB

Download
memory/1332-81-0x0000000000400000-0x00000000008E2000-memory.dmp

Filesize
4.9MB

Download
memory/1332-90-0x0000000000400000-0x00000000008E2000-memory.dmp

Filesize
4.9MB

Download
memory/1332-95-0x0000000000400000-0x00000000008E2000-memory.dmp

Filesize
4.9MB

Download
memory/1332-84-0x0000000000400000-0x00000000008E2000-memory.dmp

Filesize
4.9MB

Download
memory/2388-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2388-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2388-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4004-60-0x0000000000400000-0x00000000008E2000-memory.dmp

Filesize
4.9MB

Download
memory/4004-65-0x0000000000400000-0x00000000008E2000-memory.dmp

Filesize
4.9MB

Download
memory/4004-64-0x0000000000400000-0x00000000008E2000-memory.dmp

Filesize
4.9MB

Download
memory/4004-59-0x0000000000400000-0x00000000008E2000-memory.dmp

Filesize
4.9MB

Download
memory/5088-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/5088-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

Sharing