socks5systemz | f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2

General

Target

f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.exe
Size

5.0MB
MD5

7db09f9d8f6195b8820a672f06de26c8
SHA1

b1690c70da907b782bac0fbcd4b39d2073be54eb
SHA256

f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2
SHA512

f84e37b5f0af4fcc217a3200019a8af625142c713ca469f705b35889d7f0fedeed5bdb1ae7edc5521e06e9e7b9b846f83e0cc120ec70304bf34ad37045317c15
SSDEEP

98304:muFHIoBm3/V0Cca5vcqnRtNCFo8EPhsUT+goQOCJp2YUPgk:d6+WqURJCFo8IsNgoQOCJoYQgk

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

ayjbihe.ru

http://ayjbihe.ru/search/?q=67e28dd86809f27b415ba51b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa1de8889b5e4fa9281ae978a771ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff717c0ee979c39

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3344-83-0x00000000008D0000-0x0000000000972000-memory.dmp	family_socks5systemz

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

Processes:

f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.tmpsvomediaplayer.exesvomediaplayer.exe

pid process

1128 f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.tmp
1292 svomediaplayer.exe
3344 svomediaplayer.exe
Loads dropped DLL 1 IoCs

Processes:

f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.tmp

pid process

1128 f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.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 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

Processes:

f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.tmp

pid process

1128 f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.tmp

pid	process
1128	f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.tmp
1292	svomediaplayer.exe
3344	svomediaplayer.exe

pid	process
1128	f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.tmp

description	ioc
Destination IP	152.89.198.214

pid	process
1128	f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.exef39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.tmp

description	pid	process	target process
PID 4144 wrote to memory of 1128	4144	f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.exe	f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.tmp
PID 4144 wrote to memory of 1128	4144	f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.exe	f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.tmp
PID 4144 wrote to memory of 1128	4144	f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.exe	f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.tmp
PID 1128 wrote to memory of 1292	1128	f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.tmp	svomediaplayer.exe
PID 1128 wrote to memory of 1292	1128	f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.tmp	svomediaplayer.exe
PID 1128 wrote to memory of 1292	1128	f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.tmp	svomediaplayer.exe
PID 1128 wrote to memory of 3344	1128	f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.tmp	svomediaplayer.exe
PID 1128 wrote to memory of 3344	1128	f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.tmp	svomediaplayer.exe
PID 1128 wrote to memory of 3344	1128	f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.tmp	svomediaplayer.exe

C:\Users\Admin\AppData\Local\Temp\f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.exe
"C:\Users\Admin\AppData\Local\Temp\f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4144

C:\Users\Admin\AppData\Local\Temp\is-LGCBP.tmp\f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.tmp
"C:\Users\Admin\AppData\Local\Temp\is-LGCBP.tmp\f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.tmp" /SL5="$60200,5028177,54272,C:\Users\Admin\AppData\Local\Temp\f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1128

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:1292

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:3344

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

Replay Monitor

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Downloads

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

MD5
18abe7f51deba2d3a349faf584e90fbf

SHA1
1b781cd440bef26ef449333864b5cfebee47aef4

SHA256
06a0732315ba8152cbf81563096cab1ad11ee32f12bb2519ca38f080692b6279

SHA512
af8870a876f2ea76631156df921ba5cf1c6201690298b7c44c2a799de3ecb4763a6712fa1dc2bc56edb8d81786d90879b4e400048deb08ec633809e9cd15e554

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-LGCBP.tmp\f39ffe70c7088aa75863acb66fdb3b3fe3dc20faf8e09485c8ff9003a6cd02c2.tmp
Filesize
680KB

MD5
56f0793fcad941c7f24186fd06f08731

SHA1
5b67a6651f3b0a922e777e9958b86f4d80dc32b2

SHA256
b2de26bd6be0f5df89aab3b08a09da832291e6d22eefa4580873352b1eb4b72e

SHA512
e46195d2f5ca473b7d22400383bfe612e1594b7fa628bd72aa3a7fb01455ff360ae61bd984db1a18dc18ba4264de04eee9e639ff95e2ff40b5d6c03125a4a6f6

Download Submit
\Users\Admin\AppData\Local\Temp\is-334N7.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/1128-67-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1128-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1292-63-0x0000000000400000-0x000000000073B000-memory.dmp

Filesize
3.2MB

Download
memory/1292-59-0x0000000000400000-0x000000000073B000-memory.dmp

Filesize
3.2MB

Download
memory/1292-60-0x0000000000400000-0x000000000073B000-memory.dmp

Filesize
3.2MB

Download
memory/3344-77-0x0000000000400000-0x000000000073B000-memory.dmp

Filesize
3.2MB

Download
memory/3344-109-0x0000000000400000-0x000000000073B000-memory.dmp

Filesize
3.2MB

Download
memory/3344-129-0x0000000000400000-0x000000000073B000-memory.dmp

Filesize
3.2MB

Download
memory/3344-68-0x0000000000400000-0x000000000073B000-memory.dmp

Filesize
3.2MB

Download
memory/3344-71-0x0000000000400000-0x000000000073B000-memory.dmp

Filesize
3.2MB

Download
memory/3344-74-0x0000000000400000-0x000000000073B000-memory.dmp

Filesize
3.2MB

Download
memory/3344-124-0x0000000000400000-0x000000000073B000-memory.dmp

Filesize
3.2MB

Download
memory/3344-80-0x0000000000400000-0x000000000073B000-memory.dmp

Filesize
3.2MB

Download
memory/3344-83-0x00000000008D0000-0x0000000000972000-memory.dmp

Filesize
648KB

Download
memory/3344-85-0x0000000000400000-0x000000000073B000-memory.dmp

Filesize
3.2MB

Download
memory/3344-90-0x0000000000400000-0x000000000073B000-memory.dmp

Filesize
3.2MB

Download
memory/3344-93-0x0000000000400000-0x000000000073B000-memory.dmp

Filesize
3.2MB

Download
memory/3344-96-0x0000000000400000-0x000000000073B000-memory.dmp

Filesize
3.2MB

Download
memory/3344-99-0x0000000000400000-0x000000000073B000-memory.dmp

Filesize
3.2MB

Download
memory/3344-102-0x0000000000400000-0x000000000073B000-memory.dmp

Filesize
3.2MB

Download
memory/3344-105-0x0000000000400000-0x000000000073B000-memory.dmp

Filesize
3.2MB

Download
memory/3344-121-0x0000000000400000-0x000000000073B000-memory.dmp

Filesize
3.2MB

Download
memory/3344-112-0x0000000000400000-0x000000000073B000-memory.dmp

Filesize
3.2MB

Download
memory/3344-115-0x0000000000400000-0x000000000073B000-memory.dmp

Filesize
3.2MB

Download
memory/3344-118-0x0000000000400000-0x000000000073B000-memory.dmp

Filesize
3.2MB

Download
memory/4144-66-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4144-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4144-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

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