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

ejokvvo.ua

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4848-86-0x0000000002570000-0x0000000002612000-memory.dmp	family_socks5systemz

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

Processes:

275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmpmoonvoiceassist32.exemoonvoiceassist32.exe

pid process

1804 275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp
3520 moonvoiceassist32.exe
4848 moonvoiceassist32.exe
Loads dropped DLL 1 IoCs

Processes:

275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp

pid process

1804 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.

Processes:

description ioc

Destination IP 152.89.198.214
Destination IP 91.211.247.248
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:

275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp

pid process

1804 275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp

pid	process
1804	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp
3520	moonvoiceassist32.exe
4848	moonvoiceassist32.exe

pid	process
1804	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp

description	ioc
Destination IP	152.89.198.214
Destination IP	91.211.247.248
Destination IP	152.89.198.214

pid	process
1804	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp

description	pid	process	target process
PID 3664 wrote to memory of 1804	3664	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp
PID 3664 wrote to memory of 1804	3664	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp
PID 3664 wrote to memory of 1804	3664	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp
PID 1804 wrote to memory of 3520	1804	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp	moonvoiceassist32.exe
PID 1804 wrote to memory of 3520	1804	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp	moonvoiceassist32.exe
PID 1804 wrote to memory of 3520	1804	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp	moonvoiceassist32.exe
PID 1804 wrote to memory of 4848	1804	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp	moonvoiceassist32.exe
PID 1804 wrote to memory of 4848	1804	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp	moonvoiceassist32.exe
PID 1804 wrote to memory of 4848	1804	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp	moonvoiceassist32.exe

C:\Users\Admin\AppData\Local\Temp\275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe
"C:\Users\Admin\AppData\Local\Temp\275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3664

C:\Users\Admin\AppData\Local\Temp\is-83FSM.tmp\275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp
"C:\Users\Admin\AppData\Local\Temp\is-83FSM.tmp\275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp" /SL5="$80054,4833272,54272,C:\Users\Admin\AppData\Local\Temp\275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1804

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:3520

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:4848

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\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-40KBN.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-83FSM.tmp\275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp
Filesize
680KB

MD5
b69bf30e5f252cfcf7d82c84f8374a82

SHA1
4730c8a8a06df84e640f6ebc2aaa6f1236405f04

SHA256
d84b7d9a290803b0f334562ef81c1048c271d37fb9bc2d819fce473f26cb364b

SHA512
278be468edc57b6774c81755b8334eb9084eb683eeedc7d7537e6b6fdc2c104ba5392e98853dcd4e8ae052e7ca92a880b34b10c46096cfc2bc5034a15e46e52a

Download Submit
memory/1804-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1804-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3520-59-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/3520-60-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/3520-65-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/3520-64-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/3664-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3664-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3664-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4848-74-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/4848-90-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/4848-68-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/4848-77-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/4848-80-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/4848-83-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/4848-86-0x0000000002570000-0x0000000002612000-memory.dmp

Filesize
648KB

Download
memory/4848-71-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/4848-93-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/4848-96-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/4848-99-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/4848-102-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/4848-105-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/4848-108-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/4848-111-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/4848-114-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download

Analysis

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