socks5systemz | d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92

General

Target

d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.exe
Size

5.5MB
MD5

51822f63aedbaf61c516427df51378ad
SHA1

c3b226e5d1f3df3ef6a925304cc90b96de5d024d
SHA256

d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92
SHA512

1d41d181454143593e555db6e23f001944489741b2935f362a517cdea3e7d20c9c9238538474be172d00222d3789107721d7c67c08f1b5dc29dcf3752c66d8bf
SSDEEP

98304:Ci45Z5Wbf3/qb3yr/IMh5OZ/gLsRIqJ4IQsbaNJ2n0kvRlSTZ8qyFONASHiQxN:A5Z5Wb3a3yA8M4OH4IQrJ2n7/MNASCQH

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/1416-89-0x0000000000A00000-0x0000000000AA2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
4524	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp
1668	bossplayaudio.exe
1416	bossplayaudio.exe

Loads dropped DLL 3 IoCs

pid	Process
4524	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp
4524	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp
4524	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.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	45.155.250.90
Destination IP	152.89.198.214
Destination IP	91.211.247.248

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
4524	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1744 wrote to memory of 4524	1744	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.exe	80
PID 1744 wrote to memory of 4524	1744	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.exe	80
PID 1744 wrote to memory of 4524	1744	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.exe	80
PID 4524 wrote to memory of 1668	4524	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp	81
PID 4524 wrote to memory of 1668	4524	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp	81
PID 4524 wrote to memory of 1668	4524	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp	81
PID 4524 wrote to memory of 1416	4524	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp	82
PID 4524 wrote to memory of 1416	4524	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp	82
PID 4524 wrote to memory of 1416	4524	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp	82

C:\Users\Admin\AppData\Local\Temp\d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.exe
"C:\Users\Admin\AppData\Local\Temp\d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1744
- C:\Users\Admin\AppData\Local\Temp\is-SDEU7.tmp\d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-SDEU7.tmp\d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp" /SL5="$60056,5507132,54272,C:\Users\Admin\AppData\Local\Temp\d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4524
- - C:\Users\Admin\AppData\Local\BossPlayAudio\bossplayaudio.exe
    "C:\Users\Admin\AppData\Local\BossPlayAudio\bossplayaudio.exe" -i
    3⤵
    - Executes dropped EXE
    PID:1668
- - C:\Users\Admin\AppData\Local\BossPlayAudio\bossplayaudio.exe
    "C:\Users\Admin\AppData\Local\BossPlayAudio\bossplayaudio.exe" -s
    3⤵
    - Executes dropped EXE
    PID:1416

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\BossPlayAudio\bossplayaudio.exe

Filesize
3.3MB

MD5
02757c175393a40efd341c50d3bc08e9

SHA1
14fe76df4a42bc8380dda858778dc27f8fd2bbe2

SHA256
f6a37bd015136cd085d20f1c5d5106fd098af6f410b7638bbc372706265485d0

SHA512
3503451004824a15b922604b7f84dc7e6e94286073b91bc2d579093fad5a335c9cb4cc9ba054bc0f291ad415bd256b90a9357865810ecbd92e0bc05d89a739a9

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-94B9E.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-94B9E.tmp\_isetup\_isdecmp.dll

Filesize
32KB

MD5
b6f11a0ab7715f570f45900a1fe84732

SHA1
77b1201e535445af5ea94c1b03c0a1c34d67a77b

SHA256
e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

SHA512
78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-SDEU7.tmp\d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp

Filesize
680KB

MD5
77f0834ad0d5bcdc294497822e50a2e5

SHA1
1673b3dffd333a0d4541fb1d7aff129fdd45c3d2

SHA256
05a367bcc8e6bf5cb1efcb7d3cc4031822f4e5ae247e5c8737f824290814e2e9

SHA512
e02ccb8a2b72cdef96809c170b694d5fe49d1a0eba1420e42ba7e8f74f973276b4fd6261c8921bfa928e75d4355410f80b31aaaa71ba6e6e91db12dad5c6d8e7

Download Submit
memory/1416-101-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/1416-82-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/1416-119-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/1416-116-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/1416-113-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/1416-110-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/1416-73-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/1416-107-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/1416-104-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/1416-76-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/1416-79-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/1416-98-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/1416-85-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/1416-88-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/1416-89-0x0000000000A00000-0x0000000000AA2000-memory.dmp

Filesize
648KB

Download
memory/1416-93-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/1668-70-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/1668-67-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/1668-66-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/1744-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1744-74-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1744-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4524-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4524-75-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

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