socks5systemz | c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5

General

Target

c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.exe
Size

6.0MB
MD5

c1cb5f1e833bbb257c3249d18dce2c62
SHA1

3e4693d2ce3f614612d9e0d38c84ede0e212883d
SHA256

c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5
SHA512

523842ba54800bdf4f439bc37b992e8d462b846cf2bc79dcc5c81983fb2840a5d1fd1d810dd5feb8f187e7a47952c270c2d9fce38baaa5bd0add4518be209a2f
SSDEEP

98304:QjoDyFDXUb5pQTxLGmcE+oDvRkOvaDJ5uQn9KnNyNP8czWUtuy2IOcZcSzL5RoBy:ebc5YhwoDvmOiHD9kg8c5tuy2I1DLEpy

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2708-193-0x0000000002910000-0x00000000029B2000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Socks5systemz family
socks5systemz

Executes dropped EXE 2 IoCs

pid	Process
2508	c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.tmp
2708	syncplayer32.exe

Loads dropped DLL 5 IoCs

pid	Process
1488	c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.exe
2508	c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.tmp
2508	c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.tmp
2508	c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.tmp
2508	c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.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	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

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	syncplayer32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2508	c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.tmp

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 2508	1488	c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.exe	31
PID 1488 wrote to memory of 2508	1488	c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.exe	31
PID 1488 wrote to memory of 2508	1488	c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.exe	31
PID 1488 wrote to memory of 2508	1488	c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.exe	31
PID 1488 wrote to memory of 2508	1488	c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.exe	31
PID 1488 wrote to memory of 2508	1488	c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.exe	31
PID 1488 wrote to memory of 2508	1488	c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.exe	31
PID 2508 wrote to memory of 2708	2508	c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.tmp	32
PID 2508 wrote to memory of 2708	2508	c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.tmp	32
PID 2508 wrote to memory of 2708	2508	c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.tmp	32
PID 2508 wrote to memory of 2708	2508	c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.tmp	32

C:\Users\Admin\AppData\Local\Temp\c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.exe
"C:\Users\Admin\AppData\Local\Temp\c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1488
- C:\Users\Admin\AppData\Local\Temp\is-VN38H.tmp\c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-VN38H.tmp\c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.tmp" /SL5="$4010A,5993612,54272,C:\Users\Admin\AppData\Local\Temp\c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2508
- - C:\Users\Admin\AppData\Local\SyncPlayer 2.8.3\syncplayer32.exe
    "C:\Users\Admin\AppData\Local\SyncPlayer 2.8.3\syncplayer32.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2708

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 Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\SyncPlayer 2.8.3\syncplayer32.exe

Filesize
2.6MB

MD5
383ee28aab59622fdfd2791ab4aab999

SHA1
6f23950fa60ba87cfaecd8896b1e82532d75dcaf

SHA256
9398d7bc2fd02e6683a5b2e36ddd809b0545971ec699ec1a5f2f7f1700e6bd39

SHA512
7da3f7b1afe26163b7ad1189d68fbef8e7a1b81f701501ea8de3fbf4ca70c87ba77391d6558029f98eb69fd5ec3e80e0ea8df02511fa6b4d6a0f60ea042d5591

Download Submit
\Users\Admin\AppData\Local\Temp\is-Q32F4.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-Q32F4.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-VN38H.tmp\c66f526daf6e724d32002c054744021540104b504e9f1a359d732a925b10f3d5.tmp

Filesize
688KB

MD5
854c09203f5066bee60a54da11f06763

SHA1
fde7f75d19e7a93b7b97a09e437bffccf1e81cd4

SHA256
75c9d47c656f8d94e4de29cadf1141a599bacf0f2c70d6f60b8e1de208df172a

SHA512
32d98b07961e8422c0bb289c8d40901c5f8db985af1eaae55e7071bc1e83dc5f5685d1a74fa688fd0a664dfbd142b08ede4ae24f4943c17c95a9f20044616245

Download Submit
memory/1488-175-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1488-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1488-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2508-203-0x0000000003280000-0x000000000352C000-memory.dmp

Filesize
2.7MB

Download
memory/2508-168-0x0000000003280000-0x000000000352C000-memory.dmp

Filesize
2.7MB

Download
memory/2508-11-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2508-174-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2708-193-0x0000000002910000-0x00000000029B2000-memory.dmp

Filesize
648KB

Download
memory/2708-202-0x0000000000400000-0x00000000006AC000-memory.dmp

Filesize
2.7MB

Download
memory/2708-180-0x0000000000400000-0x00000000006AC000-memory.dmp

Filesize
2.7MB

Download
memory/2708-183-0x0000000000400000-0x00000000006AC000-memory.dmp

Filesize
2.7MB

Download
memory/2708-186-0x0000000000400000-0x00000000006AC000-memory.dmp

Filesize
2.7MB

Download
memory/2708-189-0x0000000000400000-0x00000000006AC000-memory.dmp

Filesize
2.7MB

Download
memory/2708-192-0x0000000000400000-0x00000000006AC000-memory.dmp

Filesize
2.7MB

Download
memory/2708-170-0x0000000000400000-0x00000000006AC000-memory.dmp

Filesize
2.7MB

Download
memory/2708-199-0x0000000000400000-0x00000000006AC000-memory.dmp

Filesize
2.7MB

Download
memory/2708-177-0x0000000000400000-0x00000000006AC000-memory.dmp

Filesize
2.7MB

Download
memory/2708-171-0x0000000000400000-0x00000000006AC000-memory.dmp

Filesize
2.7MB

Download
memory/2708-206-0x0000000000400000-0x00000000006AC000-memory.dmp

Filesize
2.7MB

Download
memory/2708-209-0x0000000000400000-0x00000000006AC000-memory.dmp

Filesize
2.7MB

Download
memory/2708-212-0x0000000000400000-0x00000000006AC000-memory.dmp

Filesize
2.7MB

Download
memory/2708-215-0x0000000000400000-0x00000000006AC000-memory.dmp

Filesize
2.7MB

Download
memory/2708-219-0x0000000000400000-0x00000000006AC000-memory.dmp

Filesize
2.7MB

Download
memory/2708-222-0x0000000000400000-0x00000000006AC000-memory.dmp

Filesize
2.7MB

Download

Analysis

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