socks5systemz | 51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5

General

Target

51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.exe
Size

4.5MB
MD5

b7da5cb989f005d98378ac072cd2bda6
SHA1

9f90d0455ed66a841b2233ff5ff6a6f494774d87
SHA256

51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5
SHA512

95643521f18cc01eaa4667c17c1603910507408424e59d54c33b17ad2c0ad302819b1a657e1a8788df029014da86b5db894b8f9d54f7324686856d6dcbafafa4
SSDEEP

98304:mrKXFSqhRWdNJ1naJ5HZZf8P0k8JpmrTIionzVntPFj1QAvU2Zd7:qKIqzeNQlZ58P0k8uTItBtPFr5

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bmefbsb.com

http://bmefbsb.com/search/?q=67e28dd86a5ba0284308f94b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f071ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f87fd12c6ed92

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2800-92-0x0000000002700000-0x00000000027A2000-memory.dmp	family_socks5systemz

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

Processes:

51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmpmediaplayerrptuning32.exemediaplayerrptuning32.exe

pid process

2868 51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp
2880 mediaplayerrptuning32.exe
2800 mediaplayerrptuning32.exe

pid	process
2868	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp
2880	mediaplayerrptuning32.exe
2800	mediaplayerrptuning32.exe

Loads dropped DLL 5 IoCs

Processes:

51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.exe51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp

pid	process
1260	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.exe
2868	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp
2868	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp
2868	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp
2868	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.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 141.98.234.31
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:

51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp

pid process

2868 51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp

description	ioc
Destination IP	141.98.234.31

pid	process
2868	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.exe51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp

description	pid	process	target process
PID 1260 wrote to memory of 2868	1260	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.exe	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp
PID 1260 wrote to memory of 2868	1260	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.exe	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp
PID 1260 wrote to memory of 2868	1260	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.exe	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp
PID 1260 wrote to memory of 2868	1260	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.exe	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp
PID 1260 wrote to memory of 2868	1260	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.exe	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp
PID 1260 wrote to memory of 2868	1260	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.exe	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp
PID 1260 wrote to memory of 2868	1260	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.exe	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp
PID 2868 wrote to memory of 2880	2868	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp	mediaplayerrptuning32.exe
PID 2868 wrote to memory of 2880	2868	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp	mediaplayerrptuning32.exe
PID 2868 wrote to memory of 2880	2868	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp	mediaplayerrptuning32.exe
PID 2868 wrote to memory of 2880	2868	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp	mediaplayerrptuning32.exe
PID 2868 wrote to memory of 2800	2868	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp	mediaplayerrptuning32.exe
PID 2868 wrote to memory of 2800	2868	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp	mediaplayerrptuning32.exe
PID 2868 wrote to memory of 2800	2868	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp	mediaplayerrptuning32.exe
PID 2868 wrote to memory of 2800	2868	51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp	mediaplayerrptuning32.exe

C:\Users\Admin\AppData\Local\Temp\51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.exe
"C:\Users\Admin\AppData\Local\Temp\51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1260

C:\Users\Admin\AppData\Local\Temp\is-PD9P7.tmp\51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp
"C:\Users\Admin\AppData\Local\Temp\is-PD9P7.tmp\51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp" /SL5="$400F8,4449301,54272,C:\Users\Admin\AppData\Local\Temp\51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2868

C:\Users\Admin\AppData\Local\Media Player RPTuning\mediaplayerrptuning32.exe
"C:\Users\Admin\AppData\Local\Media Player RPTuning\mediaplayerrptuning32.exe" -i
3⤵
- Executes dropped EXE
PID:2880

C:\Users\Admin\AppData\Local\Media Player RPTuning\mediaplayerrptuning32.exe
"C:\Users\Admin\AppData\Local\Media Player RPTuning\mediaplayerrptuning32.exe" -s
3⤵
- Executes dropped EXE
PID:2800

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

C:\Users\Admin\AppData\Local\Media Player RPTuning\mediaplayerrptuning32.exe

Filesize
2.3MB

MD5
f56ea261bc3dc5968e8248dfecd81c31

SHA1
c40c14dec893df71312240d86abcbc7404085e7f

SHA256
6d37e1623822a42bb3ad7dc03b501cbed8488468f0b082d4f0ae436031cb6e77

SHA512
16c4beafaaaf835dce35d058c954be659c2d42c1d961813bc854e3f25986c5400d5b8df00790272eb3d8535e95430dbb5e2120862e35593c11b4f79142432ab7

Download Submit
\Users\Admin\AppData\Local\Temp\is-HT8NC.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-HT8NC.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-PD9P7.tmp\51c6153e9d3050375ceff05719a843dbaa4780eb57703ebbfc83e7fd8d04f9b5.tmp

Filesize
680KB

MD5
0974ba095ce319c21275c60758122947

SHA1
a459f36fc33297d242af213eda9d326967c9bcd5

SHA256
b1d3bfec6e0fd3effd9f9c661082d9b8bd8b01cc7168b0ec73d2e1df195362a6

SHA512
01bdc7b62f999a2a099277a6caee7e721bb1cb3e9639e955edf412e206ea6de4d7b68cb60c31644869a09c9e28ee02b4b327bf2e3e338dbbe8a2b3537055c7ec

Download Submit
memory/1260-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1260-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1260-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2800-75-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2800-85-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2800-126-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2800-123-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2800-71-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2800-132-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2800-120-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2800-117-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2800-78-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2800-137-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2800-82-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2800-129-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2800-88-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2800-91-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2800-92-0x0000000002700000-0x00000000027A2000-memory.dmp

Filesize
648KB

Download
memory/2800-98-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2800-101-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2800-104-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2800-107-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2800-110-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2800-113-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2868-79-0x00000000033C0000-0x000000000361A000-memory.dmp

Filesize
2.4MB

Download
memory/2868-74-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2868-64-0x00000000033C0000-0x000000000361A000-memory.dmp

Filesize
2.4MB

Download
memory/2868-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2880-69-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2880-67-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2880-66-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads