socks5systemz | 83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13

General

Target

83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.exe
Size

5.0MB
MD5

a4da913568df592bbc5d676aed2ac48a
SHA1

af53442cc64f8c7bf1b6d34258b9d0fa650fcf85
SHA256

83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13
SHA512

c3e6651549a1afc60d53fcc4aa6167a16c34935d979c8179bf30d1fcc1c43066ea36d8198a77bb8946046fa7231f4bca31f9c4af225dc61cabe4bada85a9e6c7
SSDEEP

98304:mZ45jNYucmwMJnnJ3F0swTsSpF2qhpBleRltwCntDXpgvX/LW0VTXeb8T1:+KNYNmw6JVxSpF/pKRltZDpg7W0FXmy

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

ebisiux.ua

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/1940-86-0x0000000002560000-0x0000000002602000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
1800	83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp
5048	m4atomp3converter.exe
1940	m4atomp3converter.exe

Loads dropped DLL 1 IoCs

pid	Process
1800	83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.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	ioc
Destination IP	91.211.247.248
Destination IP	91.211.247.248
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 FindShellTrayWindow 1 IoCs

pid	Process
1800	83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2436 wrote to memory of 1800	2436	83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.exe	82
PID 2436 wrote to memory of 1800	2436	83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.exe	82
PID 2436 wrote to memory of 1800	2436	83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.exe	82
PID 1800 wrote to memory of 5048	1800	83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp	86
PID 1800 wrote to memory of 5048	1800	83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp	86
PID 1800 wrote to memory of 5048	1800	83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp	86
PID 1800 wrote to memory of 1940	1800	83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp	87
PID 1800 wrote to memory of 1940	1800	83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp	87
PID 1800 wrote to memory of 1940	1800	83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp	87

C:\Users\Admin\AppData\Local\Temp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.exe
"C:\Users\Admin\AppData\Local\Temp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2436
- C:\Users\Admin\AppData\Local\Temp\is-7QDJ9.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-7QDJ9.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp" /SL5="$600EA,4958759,54272,C:\Users\Admin\AppData\Local\Temp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1800
- - C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
    "C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe" -i
    3⤵
    - Executes dropped EXE
    PID:5048
- - C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
    "C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe" -s
    3⤵
    - Executes dropped EXE
    PID:1940

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\M4A to MP3 Free Converter\m4atomp3converter.exe

Filesize
3.1MB

MD5
977df7ea9dac8da84eefa7f1b47bc6cc

SHA1
5257efa83b17db554b0828c2063d79e29d0735af

SHA256
45139ccac8646cea65cc08b24ca16edf4abadea44cd7ce935d0f665ea4aa8d05

SHA512
21b3bc00014d476f1bbf3600d6863b9c88e90b206b2ca3e1d914b051f3c9fd065cfb0d07beb8cc59a9a4e6306855bce20e7e814be0b494d0851e48d92f85ec0e

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-4JE2H.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-7QDJ9.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp

Filesize
680KB

MD5
283da5c763c54b41092d9fe0d244b491

SHA1
d5e6a5b76a18c5a1d68244f2c3697bd8881fcf03

SHA256
339d2ff372992255baddd6d21cc15045b42780b25d251f570480e1aacdd00ad9

SHA512
306815b5fd5c387ffd9705097271edf5851cee7c28d1bc707813ce26714e8f722b8a34f73c43903ab6e7303dafc6ab6fa48262e487d86124c037879618cbd45a

Download Submit
memory/1800-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1800-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1940-96-0x0000000000400000-0x000000000071D000-memory.dmp

Filesize
3.1MB

Download
memory/1940-102-0x0000000000400000-0x000000000071D000-memory.dmp

Filesize
3.1MB

Download
memory/1940-114-0x0000000000400000-0x000000000071D000-memory.dmp

Filesize
3.1MB

Download
memory/1940-111-0x0000000000400000-0x000000000071D000-memory.dmp

Filesize
3.1MB

Download
memory/1940-108-0x0000000000400000-0x000000000071D000-memory.dmp

Filesize
3.1MB

Download
memory/1940-68-0x0000000000400000-0x000000000071D000-memory.dmp

Filesize
3.1MB

Download
memory/1940-105-0x0000000000400000-0x000000000071D000-memory.dmp

Filesize
3.1MB

Download
memory/1940-99-0x0000000000400000-0x000000000071D000-memory.dmp

Filesize
3.1MB

Download
memory/1940-71-0x0000000000400000-0x000000000071D000-memory.dmp

Filesize
3.1MB

Download
memory/1940-74-0x0000000000400000-0x000000000071D000-memory.dmp

Filesize
3.1MB

Download
memory/1940-77-0x0000000000400000-0x000000000071D000-memory.dmp

Filesize
3.1MB

Download
memory/1940-80-0x0000000000400000-0x000000000071D000-memory.dmp

Filesize
3.1MB

Download
memory/1940-83-0x0000000000400000-0x000000000071D000-memory.dmp

Filesize
3.1MB

Download
memory/1940-86-0x0000000002560000-0x0000000002602000-memory.dmp

Filesize
648KB

Download
memory/1940-90-0x0000000000400000-0x000000000071D000-memory.dmp

Filesize
3.1MB

Download
memory/1940-93-0x0000000000400000-0x000000000071D000-memory.dmp

Filesize
3.1MB

Download
memory/2436-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2436-1-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2436-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/5048-59-0x0000000000400000-0x000000000071D000-memory.dmp

Filesize
3.1MB

Download
memory/5048-64-0x0000000000400000-0x000000000071D000-memory.dmp

Filesize
3.1MB

Download
memory/5048-65-0x0000000000400000-0x000000000071D000-memory.dmp

Filesize
3.1MB

Download
memory/5048-60-0x0000000000400000-0x000000000071D000-memory.dmp

Filesize
3.1MB

Download

Analysis

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