socks5systemz | 275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7

General

Target

275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe
Size

4.8MB
MD5

a1f7e8d69f54697f9e4fea2617c6ad13
SHA1

5bdda2a37694e680cded193b94d102c949729dc5
SHA256

275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7
SHA512

06a64d15e608473c1023dc193d1996c71daa2eae6540d45019a353dd3d6c220e52685e7143b21382f41a944dedd5a39ca966f51a1adfb94cd8947a9c55e2b9fc
SSDEEP

98304:mMWPo/89J0L3BFN3vlih5FOvH3myAmLoL+61vEV6Le0g5KqDIV:vWPo/9xFN9ifFOPCa72g5LIV

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

csjgmdj.net

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/3128-86-0x0000000002610000-0x00000000026B2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
320	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp
4484	moonvoiceassist32.exe
3128	moonvoiceassist32.exe

Loads dropped DLL 1 IoCs

pid	Process
320	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp

Unexpected DNS network traffic destination 3 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	91.211.247.248
Destination IP	45.155.250.90
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

pid	Process
320	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1664 wrote to memory of 320	1664	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe	83
PID 1664 wrote to memory of 320	1664	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe	83
PID 1664 wrote to memory of 320	1664	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe	83
PID 320 wrote to memory of 4484	320	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp	86
PID 320 wrote to memory of 4484	320	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp	86
PID 320 wrote to memory of 4484	320	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp	86
PID 320 wrote to memory of 3128	320	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp	87
PID 320 wrote to memory of 3128	320	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp	87
PID 320 wrote to memory of 3128	320	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp	87

C:\Users\Admin\AppData\Local\Temp\275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe
"C:\Users\Admin\AppData\Local\Temp\275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1664
- C:\Users\Admin\AppData\Local\Temp\is-C6ANE.tmp\275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-C6ANE.tmp\275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp" /SL5="$6020A,4833272,54272,C:\Users\Admin\AppData\Local\Temp\275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:320
- - C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32.exe
    "C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:4484
- - C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32.exe
    "C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32.exe" -s
    3⤵
    - Executes dropped EXE
    PID:3128

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\Moon Voice Assist\moonvoiceassist32.exe

Filesize
3.1MB

MD5
8c1bcd4ea15a92d503e3ba1166f1e1fd

SHA1
0acd32778724f17604c2c4384faa10d605e261c5

SHA256
fc61fec05a67f02cb2c014a2257b1cae57bf623cf3a863b98310f9091a6455b2

SHA512
c4ce7e4f5d15e63000d89fdefbd31988d825dfc96f8c6b090b0eb2acbdc676d3541a27abd05dbfe8863b30d3cb1413b171c764c5749db504bedfbc2973c26697

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-83F6F.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-C6ANE.tmp\275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp

Filesize
680KB

MD5
b69bf30e5f252cfcf7d82c84f8374a82

SHA1
4730c8a8a06df84e640f6ebc2aaa6f1236405f04

SHA256
d84b7d9a290803b0f334562ef81c1048c271d37fb9bc2d819fce473f26cb364b

SHA512
278be468edc57b6774c81755b8334eb9084eb683eeedc7d7537e6b6fdc2c104ba5392e98853dcd4e8ae052e7ca92a880b34b10c46096cfc2bc5034a15e46e52a

Download Submit
memory/320-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/320-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1664-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1664-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1664-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3128-96-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/3128-83-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/3128-68-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/3128-114-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/3128-111-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/3128-71-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/3128-74-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/3128-77-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/3128-80-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/3128-108-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/3128-86-0x0000000002610000-0x00000000026B2000-memory.dmp

Filesize
648KB

Download
memory/3128-90-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/3128-93-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/3128-105-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/3128-99-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/3128-102-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/4484-59-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/4484-64-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/4484-60-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/4484-65-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download

Analysis

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