socks5systemz | f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6

General

Target

f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.exe
Size

4.8MB
MD5

73577861a9b34f26ade5d0497167e441
SHA1

2a224f56c2cff75462d564ac3e354e1232947234
SHA256

f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6
SHA512

44069adc375984e0c97e92839f0de4633989120f5179a51c93b21b449d4e21fa8519262cec358ceaccaeb6a48b4ed6697722ad093bbaa666694c9e7921b07bfd
SSDEEP

98304:mzBeXlAETU4gotSoMtu1yGaQO8/1ha0LggagbokBjEZP1GEa5/rrUV:rmEtTnNkO1EAgRgbovWRYV

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bnoksev.com

http://bnoksev.com/search/?q=67e28dd86f5ff42d4509ac187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978f771ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f8dfc10c0ef93

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2544-95-0x0000000002250000-0x00000000022F2000-memory.dmp	family_socks5systemz

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

Detects executables packed with VMProtect. 16 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2608-66-0x0000000000400000-0x00000000006EB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2608-70-0x0000000000400000-0x00000000006EB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2544-77-0x0000000000400000-0x00000000006EB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2544-82-0x0000000000400000-0x00000000006EB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2544-85-0x0000000000400000-0x00000000006EB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2544-88-0x0000000000400000-0x00000000006EB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2544-91-0x0000000000400000-0x00000000006EB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2544-94-0x0000000000400000-0x00000000006EB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2544-101-0x0000000000400000-0x00000000006EB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2544-104-0x0000000000400000-0x00000000006EB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2544-107-0x0000000000400000-0x00000000006EB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2544-110-0x0000000000400000-0x00000000006EB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2544-113-0x0000000000400000-0x00000000006EB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2544-116-0x0000000000400000-0x00000000006EB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2544-120-0x0000000000400000-0x00000000006EB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2544-123-0x0000000000400000-0x00000000006EB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect

Executes dropped EXE 3 IoCs

Processes:

f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmpaudioconverter.exeaudioconverter.exe

pid process

2076 f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp
2608 audioconverter.exe
2544 audioconverter.exe

pid	process
2076	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp
2608	audioconverter.exe
2544	audioconverter.exe

Loads dropped DLL 6 IoCs

Processes:

f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.exef373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp

pid	process
2176	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.exe
2076	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp
2076	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp
2076	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp
2076	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp
2076	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.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 45.155.250.90
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:

f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp

pid process

2076 f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp

description	ioc
Destination IP	45.155.250.90

pid	process
2076	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.exef373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp

description	pid	process	target process
PID 2176 wrote to memory of 2076	2176	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.exe	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp
PID 2176 wrote to memory of 2076	2176	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.exe	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp
PID 2176 wrote to memory of 2076	2176	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.exe	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp
PID 2176 wrote to memory of 2076	2176	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.exe	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp
PID 2176 wrote to memory of 2076	2176	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.exe	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp
PID 2176 wrote to memory of 2076	2176	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.exe	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp
PID 2176 wrote to memory of 2076	2176	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.exe	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp
PID 2076 wrote to memory of 2608	2076	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp	audioconverter.exe
PID 2076 wrote to memory of 2608	2076	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp	audioconverter.exe
PID 2076 wrote to memory of 2608	2076	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp	audioconverter.exe
PID 2076 wrote to memory of 2608	2076	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp	audioconverter.exe
PID 2076 wrote to memory of 2544	2076	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp	audioconverter.exe
PID 2076 wrote to memory of 2544	2076	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp	audioconverter.exe
PID 2076 wrote to memory of 2544	2076	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp	audioconverter.exe
PID 2076 wrote to memory of 2544	2076	f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp	audioconverter.exe

C:\Users\Admin\AppData\Local\Temp\f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.exe
"C:\Users\Admin\AppData\Local\Temp\f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2176

C:\Users\Admin\AppData\Local\Temp\is-RS3ON.tmp\f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp
"C:\Users\Admin\AppData\Local\Temp\is-RS3ON.tmp\f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp" /SL5="$8001C,4763182,54272,C:\Users\Admin\AppData\Local\Temp\f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2076

C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter.exe
"C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter.exe" -i
3⤵
- Executes dropped EXE
PID:2608

C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter.exe
"C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter.exe" -s
3⤵
- Executes dropped EXE
PID:2544

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

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Downloads

\Users\Admin\AppData\Local\Free Audio Converter\audioconverter.exe
Filesize
2.9MB

MD5
32596bf916ad5fe93f0d07c7632e5544

SHA1
850155513ae5163ebdeeabf3e1e00d7cc38b9da0

SHA256
1cc1f62013dad59ccb4eb0ee21c597e16b134f09bf3d6089c1b7b345728367ca

SHA512
7a96212d508df339f571d2b827ec155ec25ffaf252db612df06128977b2d76bb025fd33c85d4882ba3a95314519e4b287397cf9000a81b1632871735874f48fe

Download Submit
\Users\Admin\AppData\Local\Temp\is-RS3ON.tmp\f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6.tmp
Filesize
680KB

MD5
44b9ca6a625740ff4684e46b706c1079

SHA1
e1437bee59b5335ef6fe7b61ff815b5098f2e402

SHA256
a32a6913b656b5e99bccaae183f08024a2118372c86c4bc6a45e8ae6816f2831

SHA512
59738c2e69631c98aeb33c8c70fc0b85cc9f139d2fa462c03eee3d3c0ab94bf33d669f5ca50b3ae9b370805d446ed43985d711f0817fd228708045c269728a87

Download Submit
\Users\Admin\AppData\Local\Temp\is-V2MHI.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-V2MHI.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/2076-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2076-63-0x0000000003560000-0x000000000384B000-memory.dmp

Filesize
2.9MB

Download
memory/2076-81-0x0000000003560000-0x000000000384B000-memory.dmp

Filesize
2.9MB

Download
memory/2076-80-0x0000000003560000-0x000000000384B000-memory.dmp

Filesize
2.9MB

Download
memory/2076-76-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2176-75-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2176-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2176-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2544-77-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/2544-94-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/2544-123-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/2544-120-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/2544-116-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/2544-82-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/2544-85-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/2544-88-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/2544-91-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/2544-73-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/2544-95-0x0000000002250000-0x00000000022F2000-memory.dmp

Filesize
648KB

Download
memory/2544-101-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/2544-104-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/2544-107-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/2544-110-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/2544-113-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/2608-65-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/2608-66-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/2608-70-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads