socks5systemz | a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104

General

Target

a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe
Size

5.0MB
MD5

ea57f86fac8e38c88cb89961bbb9efeb
SHA1

0d1aa5a2d5e63cdd256d512e0a50b7a03c3cdc01
SHA256

a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104
SHA512

2dea5c5cb4f0077e8cc3c90d76ca87650a615be35e5fda87ba11fa41d0fdcc756f8a1e7cfe22c3fd358088643449e8e002f963892743278dbf41f891de1c7599
SSDEEP

98304:m6fp6ixcfmlSgztaS+QoNbQXHAkV3goQijrYElPOZn0T0lLl1r6PTPZfy:9sixc+lSgztaMtDVwqQ0OZ0glLl9+k

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

ervllil.ua

http://ervllil.ua/search/?q=67e28dd86554fa2a495aa4197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a071ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f8dfd13c7e996

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2356-92-0x0000000002270000-0x0000000002312000-memory.dmp	family_socks5systemz

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

Processes:

a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmpmoonvoiceassist.exemoonvoiceassist.exe

pid process

1724 a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
2464 moonvoiceassist.exe
2356 moonvoiceassist.exe

pid	process
1724	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
2464	moonvoiceassist.exe
2356	moonvoiceassist.exe

Loads dropped DLL 5 IoCs

Processes:

a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exea67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp

pid	process
2080	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe
1724	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
1724	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
1724	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
1724	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp

Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

description ioc

Destination IP 91.211.247.248
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:

a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp

pid process

1724 a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp

description	ioc
Destination IP	91.211.247.248

pid	process
1724	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exea67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp

description	pid	process	target process
PID 2080 wrote to memory of 1724	2080	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
PID 2080 wrote to memory of 1724	2080	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
PID 2080 wrote to memory of 1724	2080	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
PID 2080 wrote to memory of 1724	2080	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
PID 2080 wrote to memory of 1724	2080	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
PID 2080 wrote to memory of 1724	2080	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
PID 2080 wrote to memory of 1724	2080	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
PID 1724 wrote to memory of 2464	1724	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp	moonvoiceassist.exe
PID 1724 wrote to memory of 2464	1724	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp	moonvoiceassist.exe
PID 1724 wrote to memory of 2464	1724	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp	moonvoiceassist.exe
PID 1724 wrote to memory of 2464	1724	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp	moonvoiceassist.exe
PID 1724 wrote to memory of 2356	1724	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp	moonvoiceassist.exe
PID 1724 wrote to memory of 2356	1724	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp	moonvoiceassist.exe
PID 1724 wrote to memory of 2356	1724	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp	moonvoiceassist.exe
PID 1724 wrote to memory of 2356	1724	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp	moonvoiceassist.exe

C:\Users\Admin\AppData\Local\Temp\a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe
"C:\Users\Admin\AppData\Local\Temp\a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2080

C:\Users\Admin\AppData\Local\Temp\is-QAUAJ.tmp\a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
"C:\Users\Admin\AppData\Local\Temp\is-QAUAJ.tmp\a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp" /SL5="$400B0,4984627,54272,C:\Users\Admin\AppData\Local\Temp\a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1724

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:2464

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:2356

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

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Downloads

\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist.exe
Filesize
3.4MB

MD5
bf62e0e8e4f51d92070bc9618b3062eb

SHA1
f6f66fb1b4235405da7375b0f04de9f2d8b76989

SHA256
3f4e0dd0f41d2005edef4c3898c4c05823effc80d63f2d5ab63e0fdde7458151

SHA512
1e1bdd43241e65abd495480aa735fe96f6d979c80ef77e63651b802022dfdbbb9af894a96c7b1c1b3c42e74ca6036de04663744d728ff327ae9eef17a9727337

Download Submit
\Users\Admin\AppData\Local\Temp\is-PNIQF.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-PNIQF.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-QAUAJ.tmp\a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
Filesize
680KB

MD5
bb765f2ae7f9da76f9edef8dde07f1cf

SHA1
ba5af8f092247d9a81d9d50d5390bbe5a280501a

SHA256
65b94a7e8d0e19c89c871b49457934d80365d9a9c2ff781509a1cb68421da552

SHA512
a6d7f16c4bb1e6dde9e221ae343a2e46de39b314f56bb9877574b29d14becd209f131a5b649faa97aa847c252fe379b96a71791bdd1f102e054fafb7a8e0b0aa

Download Submit
memory/1724-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1724-64-0x00000000058F0000-0x0000000005C50000-memory.dmp

Filesize
3.4MB

Download
memory/1724-76-0x00000000058F0000-0x0000000005C50000-memory.dmp

Filesize
3.4MB

Download
memory/1724-74-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2080-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2080-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2080-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2356-104-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2356-98-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2356-137-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2356-75-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2356-132-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2356-79-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2356-82-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2356-85-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2356-88-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2356-91-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2356-92-0x0000000002270000-0x0000000002312000-memory.dmp

Filesize
648KB

Download
memory/2356-71-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2356-101-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2356-129-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2356-107-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2356-110-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2356-113-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2356-117-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2356-120-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2356-123-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2356-126-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2464-65-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2464-66-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2464-69-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads