socks5systemz | efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab

General

Target

efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.exe
Size

5.8MB
MD5

46dbb13b5ac7002a2bb11a17fedbcf35
SHA1

b5083fdeddd515897d72c59ac5e255c8c19dd805
SHA256

efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab
SHA512

25f2edb613ff5cd32bb27fdfc7f6094028883836952a7f32633b5b963eafc274f5b915d3efe726024cc3d7cdaf631cacf5b9a6346b032aae4ccc983df0dbe5ea
SSDEEP

98304:mI+esvQFjJb4rxqYpk8UPQfdTvNPz9C9cekLCcE+qEApqQZTC7Tp2gjEm2LiG1:JsvQF1bUpbUuFrWDkLFE+qFqQZ2h+m2r

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

buiypld.com

http://buiypld.com/search/?q=67e28dd83d0ea428165baf167c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a371ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff715c5e894923f

http://buiypld.com/search/?q=67e28dd83d0ea428165baf167c27d78406abdd88be4b12eab517aa5c96bd86ee93824e835a8bbc896c58e713bc90c91936b5281fc235a925ed3e00d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee9d9e3eca6e9e12

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2388-92-0x0000000000AB0000-0x0000000000B52000-memory.dmp	family_socks5systemz
behavioral2/memory/2388-116-0x0000000000AB0000-0x0000000000B52000-memory.dmp	family_socks5systemz
behavioral2/memory/2388-117-0x0000000000AB0000-0x0000000000B52000-memory.dmp	family_socks5systemz

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

Processes:

efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmpsvomediaplayer32.exesvomediaplayer32.exe

pid process

1816 efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp
4200 svomediaplayer32.exe
2388 svomediaplayer32.exe

Loads dropped DLL 3 IoCs

Processes:

efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp

pid	process
1816	efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp
1816	efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp
1816	efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.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:

efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp

pid process

1816 efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp

description	ioc
Destination IP	141.98.234.31

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.exeefa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp

description	pid	process	target process
PID 5036 wrote to memory of 1816	5036	efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.exe	efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp
PID 5036 wrote to memory of 1816	5036	efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.exe	efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp
PID 5036 wrote to memory of 1816	5036	efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.exe	efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp
PID 1816 wrote to memory of 4200	1816	efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp	svomediaplayer32.exe
PID 1816 wrote to memory of 4200	1816	efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp	svomediaplayer32.exe
PID 1816 wrote to memory of 4200	1816	efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp	svomediaplayer32.exe
PID 1816 wrote to memory of 2388	1816	efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp	svomediaplayer32.exe
PID 1816 wrote to memory of 2388	1816	efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp	svomediaplayer32.exe
PID 1816 wrote to memory of 2388	1816	efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp	svomediaplayer32.exe

C:\Users\Admin\AppData\Local\Temp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.exe
"C:\Users\Admin\AppData\Local\Temp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:5036

C:\Users\Admin\AppData\Local\Temp\is-0QO2U.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp
"C:\Users\Admin\AppData\Local\Temp\is-0QO2U.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp" /SL5="$8016C,5834624,54272,C:\Users\Admin\AppData\Local\Temp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1816

C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe
"C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe" -i
3⤵
- Executes dropped EXE
PID:4200

C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe
"C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe" -s
3⤵
- Executes dropped EXE
PID:2388

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\svomediaplayer32.exe
Filesize
3.5MB

MD5
183e4201632fbe92a7570f3279645145

SHA1
52f01b3d5a7b3b1dc5c9f9e7e08e7566e51a37d6

SHA256
f6bb2c56a2d18e01a2cf334cbf3344b102e9cb6fe22d37f903fad1952f3587d3

SHA512
5422c7baa435fd53a50d42114b2fb1b79265d7e2925874a9d158be7bd9cd528edd634f5831136f8d9d29ccd7289802b9e03422b6c4b3498ad52a136cffc7c339

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-0QO2U.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp
Filesize
680KB

MD5
5f513310dfdd2863a7925cf881b08d83

SHA1
e56ca43de148e9113a0143817d610dbff90984c8

SHA256
a1ea89d5df4a9fb1fb89d9c060df3d5e69a61d8ffde360ebd46128f55e95ff01

SHA512
c5e15e04432663c15d73a7ab2ea21f38907fe7667689702bd7914dc4b086484d985ee9d46fc4f4871b6ae48d17464cc296c18a9ac87ab2fc01dca056f07e44dc

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-DDC63.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-DDC63.tmp\_isetup\_isdecmp.dll
Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
memory/1816-76-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1816-19-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2388-100-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2388-112-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2388-124-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2388-121-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2388-117-0x0000000000AB0000-0x0000000000B52000-memory.dmp

Filesize
648KB

Download
memory/2388-74-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2388-116-0x0000000000AB0000-0x0000000000B52000-memory.dmp

Filesize
648KB

Download
memory/2388-115-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2388-77-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2388-80-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2388-83-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2388-86-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2388-89-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2388-92-0x0000000000AB0000-0x0000000000B52000-memory.dmp

Filesize
648KB

Download
memory/2388-95-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2388-109-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2388-103-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2388-106-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/4200-65-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/4200-71-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/4200-70-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/4200-66-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/5036-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/5036-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5036-75-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

pid	process
1816	efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp
4200	svomediaplayer32.exe
2388	svomediaplayer32.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads