socks5systemz | bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1

General

Target

bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.exe
Size

5.8MB
MD5

236e25f5fdc0f1ae94afc566d0eec612
SHA1

8fdd50dce9190a96851a8bdc35c6df164480436d
SHA256

bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1
SHA512

9e2159f3cdb2258954b327247c08ade2c5b6b26c3ea8a19fa9d556f83e20fc51ae365c0366b5f267de6ec134b56105db2cda1a09cb813fb14cc543a9177d0f6e
SSDEEP

98304:m6xEZGbl9+d6JbpOo4sRZRdHWkAQXeTZSWFPB2Ota6SKuPXS:XuEp9+2n4kVXsZDPB2OrSK1

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

ayyxvry.ru

http://ayyxvry.ru/search/?q=67e28dd83f0fa67d125ca51e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa1de8889b5e4fa9281ae978f371ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff715c4e9959b3e

http://ayyxvry.ru/search/?q=67e28dd83f0fa67d125ca51e7c27d78406abdd88be4b12eab517aa5c96bd86e59d8e4896148ab2865b77f80ebad9950f7cb63037ed2ab423a4364383ba915d911ec07bb606a0708727e40ea678c751bbe34efb0e2807e12571c17f3e83fe16c1e7919e3dcd6e93

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/484-92-0x00000000029A0000-0x0000000002A42000-memory.dmp	family_socks5systemz
behavioral2/memory/484-117-0x00000000029A0000-0x0000000002A42000-memory.dmp	family_socks5systemz
behavioral2/memory/484-118-0x00000000029A0000-0x0000000002A42000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Executes dropped EXE 3 IoCs

Processes:

bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.tmpsvomediaplayer.exesvomediaplayer.exe

pid process

3532 bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.tmp
2876 svomediaplayer.exe
484 svomediaplayer.exe

Loads dropped DLL 3 IoCs

Processes:

bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.tmp

pid	process
3532	bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.tmp
3532	bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.tmp
3532	bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.tmp

Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

description ioc

Destination IP 141.98.234.31
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

Processes:

bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.tmp

pid process

3532 bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.tmp

description	ioc
Destination IP	141.98.234.31

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.exebf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.tmp

description	pid	process	target process
PID 2192 wrote to memory of 3532	2192	bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.exe	bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.tmp
PID 2192 wrote to memory of 3532	2192	bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.exe	bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.tmp
PID 2192 wrote to memory of 3532	2192	bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.exe	bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.tmp
PID 3532 wrote to memory of 2876	3532	bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.tmp	svomediaplayer.exe
PID 3532 wrote to memory of 2876	3532	bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.tmp	svomediaplayer.exe
PID 3532 wrote to memory of 2876	3532	bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.tmp	svomediaplayer.exe
PID 3532 wrote to memory of 484	3532	bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.tmp	svomediaplayer.exe
PID 3532 wrote to memory of 484	3532	bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.tmp	svomediaplayer.exe
PID 3532 wrote to memory of 484	3532	bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.tmp	svomediaplayer.exe

C:\Users\Admin\AppData\Local\Temp\bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.exe
"C:\Users\Admin\AppData\Local\Temp\bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2192

C:\Users\Admin\AppData\Local\Temp\is-R8SPR.tmp\bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.tmp
"C:\Users\Admin\AppData\Local\Temp\is-R8SPR.tmp\bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.tmp" /SL5="$4023A,5869761,54272,C:\Users\Admin\AppData\Local\Temp\bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3532

C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe
"C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe" -i
3⤵
- Executes dropped EXE
PID:2876

C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe
"C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe" -s
3⤵
- Executes dropped EXE
PID:484

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe
Filesize
3.2MB

MD5
974765bc3d4d6ac2b204f22eaa7b9a8d

SHA1
b160d0e980e7ef0e90ff4130dbd8524db7aeccc0

SHA256
3e1428c10fbdb3330ec1e9a0510d4a3b1228f8780403d5aa36376d92c60a1fab

SHA512
e72a1d9ed0c7402df5a90b484033810c5ec831c92b89f9e7cf358dad48242023ca9623c73fd980d0afb9efb7461d158932895d42450d5151f295920de7c7b5ae

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-8RL58.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-8RL58.tmp\_isetup\_isdecmp.dll
Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-R8SPR.tmp\bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.tmp
Filesize
680KB

MD5
548dec969992f3e928d7c5bcf6dbeccf

SHA1
f4da2c90b95749fbb89e1a16f55719078cb128aa

SHA256
9a883c56e3cd5e476c9baa539c1b5d0e877dfade2714040c84ed5f098665b768

SHA512
e3980bb2bc9a9146c37bae8c60e80bc5fa164cd767fad3c046046d1517ca24780191ab98526bc94392d6a55fa486ef77857359eadef0466c6abf2b42dcec4321

Download Submit
memory/484-107-0x0000000000400000-0x0000000000736000-memory.dmp

Filesize
3.2MB

Download
memory/484-84-0x0000000000400000-0x0000000000736000-memory.dmp

Filesize
3.2MB

Download
memory/484-125-0x0000000000400000-0x0000000000736000-memory.dmp

Filesize
3.2MB

Download
memory/484-122-0x0000000000400000-0x0000000000736000-memory.dmp

Filesize
3.2MB

Download
memory/484-118-0x00000000029A0000-0x0000000002A42000-memory.dmp

Filesize
648KB

Download
memory/484-117-0x00000000029A0000-0x0000000002A42000-memory.dmp

Filesize
648KB

Download
memory/484-116-0x0000000000400000-0x0000000000736000-memory.dmp

Filesize
3.2MB

Download
memory/484-74-0x0000000000400000-0x0000000000736000-memory.dmp

Filesize
3.2MB

Download
memory/484-75-0x0000000000400000-0x0000000000736000-memory.dmp

Filesize
3.2MB

Download
memory/484-113-0x0000000000400000-0x0000000000736000-memory.dmp

Filesize
3.2MB

Download
memory/484-110-0x0000000000400000-0x0000000000736000-memory.dmp

Filesize
3.2MB

Download
memory/484-78-0x0000000000400000-0x0000000000736000-memory.dmp

Filesize
3.2MB

Download
memory/484-81-0x0000000000400000-0x0000000000736000-memory.dmp

Filesize
3.2MB

Download
memory/484-104-0x0000000000400000-0x0000000000736000-memory.dmp

Filesize
3.2MB

Download
memory/484-87-0x0000000000400000-0x0000000000736000-memory.dmp

Filesize
3.2MB

Download
memory/484-90-0x0000000000400000-0x0000000000736000-memory.dmp

Filesize
3.2MB

Download
memory/484-92-0x00000000029A0000-0x0000000002A42000-memory.dmp

Filesize
648KB

Download
memory/484-96-0x0000000000400000-0x0000000000736000-memory.dmp

Filesize
3.2MB

Download
memory/484-101-0x0000000000400000-0x0000000000736000-memory.dmp

Filesize
3.2MB

Download
memory/2192-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2192-76-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2192-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2876-71-0x0000000000400000-0x0000000000736000-memory.dmp

Filesize
3.2MB

Download
memory/2876-70-0x0000000000400000-0x0000000000736000-memory.dmp

Filesize
3.2MB

Download
memory/2876-65-0x0000000000400000-0x0000000000736000-memory.dmp

Filesize
3.2MB

Download
memory/2876-66-0x0000000000400000-0x0000000000736000-memory.dmp

Filesize
3.2MB

Download
memory/3532-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3532-77-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

pid	process
3532	bf2157be0fb0f233aaf578ec7befd8a7f5f81251d339aef1624c7253611e4cb1.tmp
2876	svomediaplayer.exe
484	svomediaplayer.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads