socks5systemz | cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd

General

Target

cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.exe
Size

4.7MB
MD5

7359389b08ef0a1edc8a8219c6c510d3
SHA1

4d1e576632f12eb872cb649e43b136b87ea57fb2
SHA256

cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd
SHA512

d3bb3d194f6c2072ecd5f8d3ed824f384456dee490c015d0bd0b9964a1dcdec0a069adc9cc060c80c42789212f8d63ed6a45d8fd4ec92840d651f23c52b6f02f
SSDEEP

98304:mD4FtPE54D2BwwDKgWedssxDtAeozfKfkG82BUcnw0+SrlYZTiNWb:o4fPEY2GwDKgWisVeo4kJ2B4I0iNWb

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

ddveibj.info

http://ddveibj.info/search/?q=67e28dd86509f67a4206fe1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa45e8889b5e4fa9281ae978f171ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f8dfc11c3e694

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2576-93-0x00000000021C0000-0x0000000002262000-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/2636-66-0x0000000000400000-0x00000000006FA000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2636-70-0x0000000000400000-0x00000000006FA000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2576-76-0x0000000000400000-0x00000000006FA000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2576-79-0x0000000000400000-0x00000000006FA000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2576-83-0x0000000000400000-0x00000000006FA000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2576-86-0x0000000000400000-0x00000000006FA000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2576-89-0x0000000000400000-0x00000000006FA000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2576-92-0x0000000000400000-0x00000000006FA000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2576-99-0x0000000000400000-0x00000000006FA000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2576-102-0x0000000000400000-0x00000000006FA000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2576-105-0x0000000000400000-0x00000000006FA000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2576-108-0x0000000000400000-0x00000000006FA000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2576-111-0x0000000000400000-0x00000000006FA000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2576-114-0x0000000000400000-0x00000000006FA000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2576-118-0x0000000000400000-0x00000000006FA000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2576-121-0x0000000000400000-0x00000000006FA000-memory.dmp	INDICATOR_EXE_Packed_VMProtect

Executes dropped EXE 3 IoCs

Processes:

cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmpfreeaudioconverter.exefreeaudioconverter.exe

pid process

1072 cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp
2636 freeaudioconverter.exe
2576 freeaudioconverter.exe

pid	process
1072	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp
2636	freeaudioconverter.exe
2576	freeaudioconverter.exe

Loads dropped DLL 5 IoCs

Processes:

cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.execdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp

pid	process
2908	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.exe
1072	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp
1072	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp
1072	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp
1072	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.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:

cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp

pid process

1072 cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp

description	ioc
Destination IP	45.155.250.90

pid	process
1072	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.execdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp

description	pid	process	target process
PID 2908 wrote to memory of 1072	2908	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.exe	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp
PID 2908 wrote to memory of 1072	2908	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.exe	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp
PID 2908 wrote to memory of 1072	2908	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.exe	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp
PID 2908 wrote to memory of 1072	2908	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.exe	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp
PID 2908 wrote to memory of 1072	2908	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.exe	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp
PID 2908 wrote to memory of 1072	2908	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.exe	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp
PID 2908 wrote to memory of 1072	2908	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.exe	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp
PID 1072 wrote to memory of 2636	1072	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp	freeaudioconverter.exe
PID 1072 wrote to memory of 2636	1072	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp	freeaudioconverter.exe
PID 1072 wrote to memory of 2636	1072	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp	freeaudioconverter.exe
PID 1072 wrote to memory of 2636	1072	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp	freeaudioconverter.exe
PID 1072 wrote to memory of 2576	1072	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp	freeaudioconverter.exe
PID 1072 wrote to memory of 2576	1072	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp	freeaudioconverter.exe
PID 1072 wrote to memory of 2576	1072	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp	freeaudioconverter.exe
PID 1072 wrote to memory of 2576	1072	cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp	freeaudioconverter.exe

C:\Users\Admin\AppData\Local\Temp\cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.exe
"C:\Users\Admin\AppData\Local\Temp\cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2908

C:\Users\Admin\AppData\Local\Temp\is-K16GE.tmp\cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp
"C:\Users\Admin\AppData\Local\Temp\is-K16GE.tmp\cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp" /SL5="$3014E,4728276,54272,C:\Users\Admin\AppData\Local\Temp\cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1072

C:\Users\Admin\AppData\Local\Free Audio Converter\freeaudioconverter.exe
"C:\Users\Admin\AppData\Local\Free Audio Converter\freeaudioconverter.exe" -i
3⤵
- Executes dropped EXE
PID:2636

C:\Users\Admin\AppData\Local\Free Audio Converter\freeaudioconverter.exe
"C:\Users\Admin\AppData\Local\Free Audio Converter\freeaudioconverter.exe" -s
3⤵
- Executes dropped EXE
PID:2576

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\Free Audio Converter\freeaudioconverter.exe
Filesize
3.0MB

MD5
72af55ea686ffd0806c70c5add5e1257

SHA1
30246e51774d4d13558ad0b5a39213e212417e31

SHA256
2129423c2b05e80f7c2b85c37bcd8bceb575a54356ef1f83d4a9a3960ed4e0fb

SHA512
25238f900834a56026cf2955c92ef962cb680ff0d07fa3a2c390968f1d661d08d24647384ff39882f35db42f2b6a8ab9cc7da87f038a52ef0daf5e8e88b571a5

Download Submit
\Users\Admin\AppData\Local\Temp\is-K16GE.tmp\cdb3c6dc6768edd8a4be613227587f9e405dcd4476502db1a55f9573bf8bcccd.tmp
Filesize
680KB

MD5
f519683b3c418feee49361b3411d8c3d

SHA1
f981468acbf6b3e1d081a52203f7e3f017fcafe7

SHA256
4fc60883a82f58b3a798be19bd6a25592631ac3ccb23af3b1a95c41dab65af4a

SHA512
db0e3a2363bb9433cc57d3da42bfb901f0ed128aad2297a88cca1dae650f69a438ef4f7634b945568bb99f59bc587eb698f08cf8dc8162808ac8575fa280c805

Download Submit
\Users\Admin\AppData\Local\Temp\is-VFE3A.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-VFE3A.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/1072-75-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1072-80-0x0000000003930000-0x0000000003C2A000-memory.dmp

Filesize
3.0MB

Download
memory/1072-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1072-64-0x0000000003930000-0x0000000003C2A000-memory.dmp

Filesize
3.0MB

Download
memory/2576-76-0x0000000000400000-0x00000000006FA000-memory.dmp

Filesize
3.0MB

Download
memory/2576-105-0x0000000000400000-0x00000000006FA000-memory.dmp

Filesize
3.0MB

Download
memory/2576-121-0x0000000000400000-0x00000000006FA000-memory.dmp

Filesize
3.0MB

Download
memory/2576-72-0x0000000000400000-0x00000000006FA000-memory.dmp

Filesize
3.0MB

Download
memory/2576-118-0x0000000000400000-0x00000000006FA000-memory.dmp

Filesize
3.0MB

Download
memory/2576-114-0x0000000000400000-0x00000000006FA000-memory.dmp

Filesize
3.0MB

Download
memory/2576-111-0x0000000000400000-0x00000000006FA000-memory.dmp

Filesize
3.0MB

Download
memory/2576-79-0x0000000000400000-0x00000000006FA000-memory.dmp

Filesize
3.0MB

Download
memory/2576-108-0x0000000000400000-0x00000000006FA000-memory.dmp

Filesize
3.0MB

Download
memory/2576-83-0x0000000000400000-0x00000000006FA000-memory.dmp

Filesize
3.0MB

Download
memory/2576-86-0x0000000000400000-0x00000000006FA000-memory.dmp

Filesize
3.0MB

Download
memory/2576-89-0x0000000000400000-0x00000000006FA000-memory.dmp

Filesize
3.0MB

Download
memory/2576-92-0x0000000000400000-0x00000000006FA000-memory.dmp

Filesize
3.0MB

Download
memory/2576-93-0x00000000021C0000-0x0000000002262000-memory.dmp

Filesize
648KB

Download
memory/2576-99-0x0000000000400000-0x00000000006FA000-memory.dmp

Filesize
3.0MB

Download
memory/2576-102-0x0000000000400000-0x00000000006FA000-memory.dmp

Filesize
3.0MB

Download
memory/2636-66-0x0000000000400000-0x00000000006FA000-memory.dmp

Filesize
3.0MB

Download
memory/2636-65-0x0000000000400000-0x00000000006FA000-memory.dmp

Filesize
3.0MB

Download
memory/2636-70-0x0000000000400000-0x00000000006FA000-memory.dmp

Filesize
3.0MB

Download
memory/2908-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2908-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2908-74-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads