socks5systemz | 76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde

General

Target

76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.exe
Size

4.7MB
MD5

8f8d76ab059e3f1ee4457d996bbd7384
SHA1

c38d1652157255c760354bab6b7884be8a2535e5
SHA256

76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde
SHA512

5cd4b84886976d2ba342f6525498c9fc8e68d86c678784ad3213934dbe147054fa131253dca6005f7af0460adbd77a1de3649843b701458818213574f80d164e
SSDEEP

98304:mgzRDSyBbX7MEp+unkPfujwGFVQ+Zt+2aQabUIJfUedeZHe:dNSyBbRp6fcVus1MbLRUKce

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

dlurxff.info

http://dlurxff.info/search/?q=67e28dd86f54a728120ffa1d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f771ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f8dfd19c3ec94

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2488-92-0x0000000002280000-0x0000000002322000-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/2596-66-0x0000000000400000-0x00000000006FB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2596-69-0x0000000000400000-0x00000000006FB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2488-75-0x0000000000400000-0x00000000006FB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2488-79-0x0000000000400000-0x00000000006FB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2488-82-0x0000000000400000-0x00000000006FB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2488-85-0x0000000000400000-0x00000000006FB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2488-88-0x0000000000400000-0x00000000006FB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2488-91-0x0000000000400000-0x00000000006FB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2488-98-0x0000000000400000-0x00000000006FB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2488-101-0x0000000000400000-0x00000000006FB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2488-104-0x0000000000400000-0x00000000006FB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2488-107-0x0000000000400000-0x00000000006FB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2488-110-0x0000000000400000-0x00000000006FB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2488-113-0x0000000000400000-0x00000000006FB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2488-117-0x0000000000400000-0x00000000006FB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral1/memory/2488-120-0x0000000000400000-0x00000000006FB000-memory.dmp	INDICATOR_EXE_Packed_VMProtect

Executes dropped EXE 3 IoCs

Processes:

76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmpfreeaudioconverter.exefreeaudioconverter.exe

pid process

3036 76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp
2596 freeaudioconverter.exe
2488 freeaudioconverter.exe

pid	process
3036	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp
2596	freeaudioconverter.exe
2488	freeaudioconverter.exe

Loads dropped DLL 5 IoCs

Processes:

76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.exe76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp

pid	process
3008	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.exe
3036	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp
3036	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp
3036	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp
3036	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.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:

76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp

pid process

3036 76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp

description	ioc
Destination IP	91.211.247.248

pid	process
3036	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.exe76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp

description	pid	process	target process
PID 3008 wrote to memory of 3036	3008	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.exe	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp
PID 3008 wrote to memory of 3036	3008	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.exe	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp
PID 3008 wrote to memory of 3036	3008	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.exe	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp
PID 3008 wrote to memory of 3036	3008	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.exe	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp
PID 3008 wrote to memory of 3036	3008	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.exe	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp
PID 3008 wrote to memory of 3036	3008	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.exe	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp
PID 3008 wrote to memory of 3036	3008	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.exe	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp
PID 3036 wrote to memory of 2596	3036	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp	freeaudioconverter.exe
PID 3036 wrote to memory of 2596	3036	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp	freeaudioconverter.exe
PID 3036 wrote to memory of 2596	3036	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp	freeaudioconverter.exe
PID 3036 wrote to memory of 2596	3036	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp	freeaudioconverter.exe
PID 3036 wrote to memory of 2488	3036	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp	freeaudioconverter.exe
PID 3036 wrote to memory of 2488	3036	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp	freeaudioconverter.exe
PID 3036 wrote to memory of 2488	3036	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp	freeaudioconverter.exe
PID 3036 wrote to memory of 2488	3036	76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp	freeaudioconverter.exe

C:\Users\Admin\AppData\Local\Temp\76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.exe
"C:\Users\Admin\AppData\Local\Temp\76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3008

C:\Users\Admin\AppData\Local\Temp\is-J8B2V.tmp\76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp
"C:\Users\Admin\AppData\Local\Temp\is-J8B2V.tmp\76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp" /SL5="$70120,4729640,54272,C:\Users\Admin\AppData\Local\Temp\76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3036

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:2596

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:2488

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

\Users\Admin\AppData\Local\Free Audio Converter\freeaudioconverter.exe
Filesize
3.0MB

MD5
e88d7b92a6a3102ea583f93209ed08c7

SHA1
c0889d5ebd06ad7e7c48332fbb5d454b518cae2d

SHA256
557b537995d556caa1c7f9a0f22bd0ce9c8b1fa2d6af9cffc72f1eaee8937a74

SHA512
7281368323dcd9c0fc57e1bfba0fdff06aa98ac673cec79ec94c04bc63efd7a7fde431f353255c5a495367c96340417b9da22e9c61b038274460717297fa15f3

Download Submit
\Users\Admin\AppData\Local\Temp\is-COE9C.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-COE9C.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-J8B2V.tmp\76dd35f56bbe00dbbc54d4ca4b22a4d10ae45801563f674d2a9cceaec4863fde.tmp
Filesize
680KB

MD5
f519683b3c418feee49361b3411d8c3d

SHA1
f981468acbf6b3e1d081a52203f7e3f017fcafe7

SHA256
4fc60883a82f58b3a798be19bd6a25592631ac3ccb23af3b1a95c41dab65af4a

SHA512
db0e3a2363bb9433cc57d3da42bfb901f0ed128aad2297a88cca1dae650f69a438ef4f7634b945568bb99f59bc587eb698f08cf8dc8162808ac8575fa280c805

Download Submit
memory/2488-92-0x0000000002280000-0x0000000002322000-memory.dmp

Filesize
648KB

Download
memory/2488-82-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2488-120-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2488-117-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2488-113-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2488-110-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2488-107-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2488-71-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2488-104-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2488-101-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2488-75-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2488-98-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2488-79-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2488-91-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2488-85-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2488-88-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2596-69-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2596-66-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2596-65-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/3008-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3008-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3008-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3036-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3036-78-0x0000000003C10000-0x0000000003F0B000-memory.dmp

Filesize
3.0MB

Download
memory/3036-74-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3036-63-0x0000000003C10000-0x0000000003F0B000-memory.dmp

Filesize
3.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads