socks5systemz | dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39

General

Target

dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.exe
Size

5.0MB
MD5

fc305092defe1f2e2c1b3cd9e99c4860
SHA1

d3e4c502bef44d6ae0caeb44b903baff34c453b6
SHA256

dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39
SHA512

65f9294bfb42b10cbfa9be1f68e09a31fb4dbc29937a9b327e59c375f9123856a318ca9db7d9b00388fe0752434014b1db84b2d588df5f35bcbf09ae18a49f2f
SSDEEP

98304:mImXN+SJO6lnQlIPWsMt0g+Ocyrvh1VhDmP6Aowv7twhDtZqhHpm1ZIvBHO9doM8:m9+SJO6lnQlIPWsRODrJ1V4vlmXqhpce

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

cklbbri.net

gbxdvcf.com

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2516-91-0x00000000023C0000-0x0000000002462000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
2036	dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.tmp
2820	moonvoiceassist.exe
2516	moonvoiceassist.exe

Loads dropped DLL 5 IoCs

pid	Process
1700	dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.exe
2036	dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.tmp
2036	dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.tmp
2036	dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.tmp
2036	dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.tmp

Unexpected DNS network traffic destination 13 IoCs

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

description	ioc
Destination IP	45.155.250.90
Destination IP	91.211.247.248
Destination IP	141.98.234.31
Destination IP	45.155.250.90
Destination IP	152.89.198.214
Destination IP	81.31.197.38
Destination IP	152.89.198.214
Destination IP	81.31.197.38
Destination IP	91.211.247.248
Destination IP	141.98.234.31
Destination IP	141.98.234.31
Destination IP	152.89.198.214
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
2036	dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.tmp

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 2036	1700	dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.exe	28
PID 1700 wrote to memory of 2036	1700	dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.exe	28
PID 1700 wrote to memory of 2036	1700	dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.exe	28
PID 1700 wrote to memory of 2036	1700	dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.exe	28
PID 1700 wrote to memory of 2036	1700	dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.exe	28
PID 1700 wrote to memory of 2036	1700	dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.exe	28
PID 1700 wrote to memory of 2036	1700	dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.exe	28
PID 2036 wrote to memory of 2820	2036	dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.tmp	29
PID 2036 wrote to memory of 2820	2036	dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.tmp	29
PID 2036 wrote to memory of 2820	2036	dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.tmp	29
PID 2036 wrote to memory of 2820	2036	dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.tmp	29
PID 2036 wrote to memory of 2516	2036	dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.tmp	30
PID 2036 wrote to memory of 2516	2036	dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.tmp	30
PID 2036 wrote to memory of 2516	2036	dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.tmp	30
PID 2036 wrote to memory of 2516	2036	dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.tmp	30

C:\Users\Admin\AppData\Local\Temp\dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.exe
"C:\Users\Admin\AppData\Local\Temp\dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Users\Admin\AppData\Local\Temp\is-1CT79.tmp\dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-1CT79.tmp\dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.tmp" /SL5="$4010A,4976120,54272,C:\Users\Admin\AppData\Local\Temp\dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2036
- - C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist.exe
    "C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2820
- - C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist.exe
    "C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2516

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

\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist.exe

Filesize
3.3MB

MD5
89d3c3d7ec6f6495b84361ddad353eff

SHA1
93dfbbb417e8d62caa58c1534360b19c81108836

SHA256
0e3866167bc6dbd758b505a6da64c0bbc5adfdd50f9c6e8688a8768910cdfacb

SHA512
179b2a880cf8951f530b117f458548f87c292485c89bd04ee91065be71119af46dac492dbf76717576ffcfb28286b87c17852d30e84774aca43f46d6890fd420

Download Submit
\Users\Admin\AppData\Local\Temp\is-1CT79.tmp\dd17f874ceb2b4a7f755e42419f9e72c45063a4f4ba13c1209e32a342fd86d39.tmp

Filesize
680KB

MD5
bb765f2ae7f9da76f9edef8dde07f1cf

SHA1
ba5af8f092247d9a81d9d50d5390bbe5a280501a

SHA256
65b94a7e8d0e19c89c871b49457934d80365d9a9c2ff781509a1cb68421da552

SHA512
a6d7f16c4bb1e6dde9e221ae343a2e46de39b314f56bb9877574b29d14becd209f131a5b649faa97aa847c252fe379b96a71791bdd1f102e054fafb7a8e0b0aa

Download Submit
\Users\Admin\AppData\Local\Temp\is-9V09F.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-9V09F.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/1700-72-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1700-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1700-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2036-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2036-63-0x0000000004260000-0x00000000045BD000-memory.dmp

Filesize
3.4MB

Download
memory/2036-77-0x0000000004260000-0x00000000045BD000-memory.dmp

Filesize
3.4MB

Download
memory/2036-73-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2516-106-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2516-100-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2516-74-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2516-133-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2516-78-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2516-81-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2516-84-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2516-87-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2516-90-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2516-91-0x00000000023C0000-0x0000000002462000-memory.dmp

Filesize
648KB

Download
memory/2516-97-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2516-130-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2516-103-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2516-127-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2516-109-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2516-112-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2516-115-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2516-118-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2516-121-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2516-124-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2820-65-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2820-69-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2820-66-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download

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