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 3 IoCs

resource	yara_rule
behavioral2/memory/3540-94-0x0000000000A60000-0x0000000000B02000-memory.dmp	family_socks5systemz
behavioral2/memory/3540-117-0x0000000000A60000-0x0000000000B02000-memory.dmp	family_socks5systemz
behavioral2/memory/3540-118-0x0000000000A60000-0x0000000000B02000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
4636	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp
2620	bossplayaudio.exe
3540	bossplayaudio.exe

Loads dropped DLL 3 IoCs

pid	Process
4636	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp
4636	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp
4636	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.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
4636	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 4636	2128	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.exe	78
PID 2128 wrote to memory of 4636	2128	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.exe	78
PID 2128 wrote to memory of 4636	2128	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.exe	78
PID 4636 wrote to memory of 2620	4636	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp	79
PID 4636 wrote to memory of 2620	4636	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp	79
PID 4636 wrote to memory of 2620	4636	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp	79
PID 4636 wrote to memory of 3540	4636	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp	80
PID 4636 wrote to memory of 3540	4636	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp	80
PID 4636 wrote to memory of 3540	4636	d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp	80

C:\Users\Admin\AppData\Local\Temp\d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.exe
"C:\Users\Admin\AppData\Local\Temp\d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Users\Admin\AppData\Local\Temp\is-NU0JM.tmp\d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-NU0JM.tmp\d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp" /SL5="$60240,5507132,54272,C:\Users\Admin\AppData\Local\Temp\d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4636
- - C:\Users\Admin\AppData\Local\BossPlayAudio\bossplayaudio.exe
    "C:\Users\Admin\AppData\Local\BossPlayAudio\bossplayaudio.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2620
- - C:\Users\Admin\AppData\Local\BossPlayAudio\bossplayaudio.exe
    "C:\Users\Admin\AppData\Local\BossPlayAudio\bossplayaudio.exe" -s
    3⤵
    - Executes dropped EXE
    PID:3540

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-5QQFB.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-5QQFB.tmp\_isetup\_isdecmp.dll

Filesize
32KB

MD5
b6f11a0ab7715f570f45900a1fe84732

SHA1
77b1201e535445af5ea94c1b03c0a1c34d67a77b

SHA256
e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

SHA512
78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-NU0JM.tmp\d239cd46b0931830bd18f733ec04b3839d643612aa6d4b7da8d0733c60e36a92.tmp

Filesize
680KB

MD5
77f0834ad0d5bcdc294497822e50a2e5

SHA1
1673b3dffd333a0d4541fb1d7aff129fdd45c3d2

SHA256
05a367bcc8e6bf5cb1efcb7d3cc4031822f4e5ae247e5c8737f824290814e2e9

SHA512
e02ccb8a2b72cdef96809c170b694d5fe49d1a0eba1420e42ba7e8f74f973276b4fd6261c8921bfa928e75d4355410f80b31aaaa71ba6e6e91db12dad5c6d8e7

Download Submit
memory/2128-75-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2128-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2128-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2620-66-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/2620-67-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/2620-71-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/2620-70-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/3540-83-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/3540-100-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/3540-125-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/3540-77-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/3540-80-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/3540-122-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/3540-84-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/3540-87-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/3540-90-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/3540-93-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/3540-94-0x0000000000A60000-0x0000000000B02000-memory.dmp

Filesize
648KB

Download
memory/3540-74-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/3540-103-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/3540-105-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/3540-107-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/3540-110-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/3540-113-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/3540-116-0x0000000000400000-0x0000000000744000-memory.dmp

Filesize
3.3MB

Download
memory/3540-117-0x0000000000A60000-0x0000000000B02000-memory.dmp

Filesize
648KB

Download
memory/3540-118-0x0000000000A60000-0x0000000000B02000-memory.dmp

Filesize
648KB

Download
memory/4636-7-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4636-76-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

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