socks5systemz | f1b02dff633301b741c3991a6c43282d7384a6839de5309a86433c49c01d391e

General

Target

f1b02dff633301b741c3991a6c43282d7384a6839de5309a86433c49c01d391e.exe
Size

6.4MB
MD5

3d9bd546c5ca9385659fef149a8e6f2b
SHA1

1ad65b1510e8cd76704c930e42989a0295782448
SHA256

f1b02dff633301b741c3991a6c43282d7384a6839de5309a86433c49c01d391e
SHA512

65f84f3eda829bc065a84a44e4e512673d8bdaaff0c8677d61e008960b7a9dc96626b07956878560dc0908ff4de4426de4979637a6fb19f78257b64bfe9c9293
SSDEEP

196608:eYrbTJV86NIZuaa8fXgj5oh00Ad6DTV39f8Bk:eCJW6D5oiz69iBk

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/1520-86-0x0000000000C10000-0x0000000000CB2000-memory.dmp	family_socks5systemz
behavioral2/memory/1520-110-0x0000000000C10000-0x0000000000CB2000-memory.dmp	family_socks5systemz
behavioral2/memory/1520-109-0x0000000000C10000-0x0000000000CB2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
2304	f1b02dff633301b741c3991a6c43282d7384a6839de5309a86433c49c01d391e.tmp
3624	mixability.exe
1520	mixability.exe

Loads dropped DLL 1 IoCs

pid	Process
2304	f1b02dff633301b741c3991a6c43282d7384a6839de5309a86433c49c01d391e.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
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
2304	f1b02dff633301b741c3991a6c43282d7384a6839de5309a86433c49c01d391e.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4964 wrote to memory of 2304	4964	f1b02dff633301b741c3991a6c43282d7384a6839de5309a86433c49c01d391e.exe	78
PID 4964 wrote to memory of 2304	4964	f1b02dff633301b741c3991a6c43282d7384a6839de5309a86433c49c01d391e.exe	78
PID 4964 wrote to memory of 2304	4964	f1b02dff633301b741c3991a6c43282d7384a6839de5309a86433c49c01d391e.exe	78
PID 2304 wrote to memory of 3624	2304	f1b02dff633301b741c3991a6c43282d7384a6839de5309a86433c49c01d391e.tmp	79
PID 2304 wrote to memory of 3624	2304	f1b02dff633301b741c3991a6c43282d7384a6839de5309a86433c49c01d391e.tmp	79
PID 2304 wrote to memory of 3624	2304	f1b02dff633301b741c3991a6c43282d7384a6839de5309a86433c49c01d391e.tmp	79
PID 2304 wrote to memory of 1520	2304	f1b02dff633301b741c3991a6c43282d7384a6839de5309a86433c49c01d391e.tmp	80
PID 2304 wrote to memory of 1520	2304	f1b02dff633301b741c3991a6c43282d7384a6839de5309a86433c49c01d391e.tmp	80
PID 2304 wrote to memory of 1520	2304	f1b02dff633301b741c3991a6c43282d7384a6839de5309a86433c49c01d391e.tmp	80

C:\Users\Admin\AppData\Local\Temp\f1b02dff633301b741c3991a6c43282d7384a6839de5309a86433c49c01d391e.exe
"C:\Users\Admin\AppData\Local\Temp\f1b02dff633301b741c3991a6c43282d7384a6839de5309a86433c49c01d391e.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4964
- C:\Users\Admin\AppData\Local\Temp\is-5T1MP.tmp\f1b02dff633301b741c3991a6c43282d7384a6839de5309a86433c49c01d391e.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-5T1MP.tmp\f1b02dff633301b741c3991a6c43282d7384a6839de5309a86433c49c01d391e.tmp" /SL5="$4021C,6409835,54272,C:\Users\Admin\AppData\Local\Temp\f1b02dff633301b741c3991a6c43282d7384a6839de5309a86433c49c01d391e.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2304
- - C:\Users\Admin\AppData\Local\Mixability\mixability.exe
    "C:\Users\Admin\AppData\Local\Mixability\mixability.exe" -i
    3⤵
    - Executes dropped EXE
    PID:3624
- - C:\Users\Admin\AppData\Local\Mixability\mixability.exe
    "C:\Users\Admin\AppData\Local\Mixability\mixability.exe" -s
    3⤵
    - Executes dropped EXE
    PID:1520

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\Mixability\mixability.exe

Filesize
4.9MB

MD5
2ee93c2d207f89b8d662abcbb7e66941

SHA1
65e6c97edea37c59e7fbc4856571a974b1a9f3fc

SHA256
4503d45acd004777984d0c9a864fddbdeac148e94766464eb78d6e9afd544696

SHA512
230f4b19d3e7cbc6abbdb362908f559a15a8c4e27bad3ab745ec973b5f6e76d4cfbf3662a1bcec8a6e8b3f6b711704bad9f60ace119664a62d31ef69f92759c2

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-5T1MP.tmp\f1b02dff633301b741c3991a6c43282d7384a6839de5309a86433c49c01d391e.tmp

Filesize
680KB

MD5
1b3794a6ef5ccc4df23a2b396669bfdc

SHA1
62f05371932cb9c497496c96184f519085c16f8c

SHA256
a8ff24742e87dc691d107a73eb5d18840d52e92b676a32aeb7e7f6a4a96b9be7

SHA512
0ab236b6f5f3c0591a2d04e3df4c76e5428ddfc64403cb0e92b10b68ec69cbad951af753f957b44c5746c7704a411b8be0607f491de078739a401c3d6e108322

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-JBHQ6.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/1520-96-0x0000000000400000-0x00000000008E3000-memory.dmp

Filesize
4.9MB

Download
memory/1520-80-0x0000000000400000-0x00000000008E3000-memory.dmp

Filesize
4.9MB

Download
memory/1520-117-0x0000000000400000-0x00000000008E3000-memory.dmp

Filesize
4.9MB

Download
memory/1520-114-0x0000000000400000-0x00000000008E3000-memory.dmp

Filesize
4.9MB

Download
memory/1520-109-0x0000000000C10000-0x0000000000CB2000-memory.dmp

Filesize
648KB

Download
memory/1520-110-0x0000000000C10000-0x0000000000CB2000-memory.dmp

Filesize
648KB

Download
memory/1520-108-0x0000000000400000-0x00000000008E3000-memory.dmp

Filesize
4.9MB

Download
memory/1520-68-0x0000000000400000-0x00000000008E3000-memory.dmp

Filesize
4.9MB

Download
memory/1520-105-0x0000000000400000-0x00000000008E3000-memory.dmp

Filesize
4.9MB

Download
memory/1520-102-0x0000000000400000-0x00000000008E3000-memory.dmp

Filesize
4.9MB

Download
memory/1520-71-0x0000000000400000-0x00000000008E3000-memory.dmp

Filesize
4.9MB

Download
memory/1520-74-0x0000000000400000-0x00000000008E3000-memory.dmp

Filesize
4.9MB

Download
memory/1520-77-0x0000000000400000-0x00000000008E3000-memory.dmp

Filesize
4.9MB

Download
memory/1520-99-0x0000000000400000-0x00000000008E3000-memory.dmp

Filesize
4.9MB

Download
memory/1520-83-0x0000000000400000-0x00000000008E3000-memory.dmp

Filesize
4.9MB

Download
memory/1520-86-0x0000000000C10000-0x0000000000CB2000-memory.dmp

Filesize
648KB

Download
memory/1520-88-0x0000000000400000-0x00000000008E3000-memory.dmp

Filesize
4.9MB

Download
memory/1520-93-0x0000000000400000-0x00000000008E3000-memory.dmp

Filesize
4.9MB

Download
memory/2304-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2304-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3624-64-0x0000000000400000-0x00000000008E3000-memory.dmp

Filesize
4.9MB

Download
memory/3624-65-0x0000000000400000-0x00000000008E3000-memory.dmp

Filesize
4.9MB

Download
memory/3624-60-0x0000000000400000-0x00000000008E3000-memory.dmp

Filesize
4.9MB

Download
memory/3624-59-0x0000000000400000-0x00000000008E3000-memory.dmp

Filesize
4.9MB

Download
memory/4964-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4964-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4964-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

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