socks5systemz | c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2

General

Target

c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.exe
Size

4.8MB
MD5

eb23a0baa591fd3b7e33016587dcfb46
SHA1

a7699a58ca2f8775f2073c0823e495900f4b7829
SHA256

c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2
SHA512

4fc7a6877421feb206c43650e6dcbbe62819c149ed8cb1845bc475d2c046452618b3a05de10d36dbb102d4451671b2040af8150c9b5171080830ffee68d0417b
SSDEEP

98304:mHlKatxBR/BRWZ5UD983xIhDYYGoQTvnaeq8no3IMhLdG+9ejZ153IzIIx:ylKAZBcZO+IhDjDQTP88nYIwM+9e7aH

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bwndylb.com

http://bwndylb.com/search/?q=67e28dd8690cfb204406a51a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978fe71ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f8dfd12c1eb9c

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2588-94-0x0000000002230000-0x00000000022D2000-memory.dmp	family_socks5systemz

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

Processes:

c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmpaudioconverter32.exeaudioconverter32.exe

pid process

2380 c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp
2764 audioconverter32.exe
2588 audioconverter32.exe

pid	process
2380	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp
2764	audioconverter32.exe
2588	audioconverter32.exe

Loads dropped DLL 6 IoCs

Processes:

c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.exec711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp

pid	process
2888	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.exe
2380	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp
2380	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp
2380	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp
2380	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp
2380	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.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:

c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp

pid process

2380 c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp

description	ioc
Destination IP	91.211.247.248

pid	process
2380	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.exec711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp

description	pid	process	target process
PID 2888 wrote to memory of 2380	2888	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.exe	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp
PID 2888 wrote to memory of 2380	2888	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.exe	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp
PID 2888 wrote to memory of 2380	2888	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.exe	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp
PID 2888 wrote to memory of 2380	2888	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.exe	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp
PID 2888 wrote to memory of 2380	2888	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.exe	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp
PID 2888 wrote to memory of 2380	2888	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.exe	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp
PID 2888 wrote to memory of 2380	2888	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.exe	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp
PID 2380 wrote to memory of 2764	2380	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp	audioconverter32.exe
PID 2380 wrote to memory of 2764	2380	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp	audioconverter32.exe
PID 2380 wrote to memory of 2764	2380	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp	audioconverter32.exe
PID 2380 wrote to memory of 2764	2380	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp	audioconverter32.exe
PID 2380 wrote to memory of 2588	2380	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp	audioconverter32.exe
PID 2380 wrote to memory of 2588	2380	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp	audioconverter32.exe
PID 2380 wrote to memory of 2588	2380	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp	audioconverter32.exe
PID 2380 wrote to memory of 2588	2380	c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp	audioconverter32.exe

C:\Users\Admin\AppData\Local\Temp\c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.exe
"C:\Users\Admin\AppData\Local\Temp\c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2888

C:\Users\Admin\AppData\Local\Temp\is-LKINC.tmp\c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp
"C:\Users\Admin\AppData\Local\Temp\is-LKINC.tmp\c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp" /SL5="$4001C,4781632,54272,C:\Users\Admin\AppData\Local\Temp\c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2380

C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter32.exe
"C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter32.exe" -i
3⤵
- Executes dropped EXE
PID:2764

C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter32.exe
"C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter32.exe" -s
3⤵
- Executes dropped EXE
PID:2588

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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Free Audio Converter\audioconverter32.exe
Filesize
2.9MB

MD5
fe5a0308c69340110637dd3313081fec

SHA1
fbfc3d5b84ba6108288b6c530e261e03b490e63f

SHA256
7a2320a3175dbdb7943ebe41a4157760dc13dc1bdc75839afcb7c53904bb9125

SHA512
42c9dc01ac6b3db2f3dffffa33f39dd4a9bb1956a8598058115b2590148cee7e8eb603dcc93161a843d49eeb273ba6f9d03bd00b06f37f3a81220384e9fac321

Download Submit
\Users\Admin\AppData\Local\Temp\is-C4951.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-C4951.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-LKINC.tmp\c711f62fac5d20715addf5dd398b86c50ecc15e2182b60c7c7d3125dc2b2aea2.tmp
Filesize
680KB

MD5
f2ea57162349fbb5a88b276f91880c7d

SHA1
31d0ef8f01ec1dbca631b2aee891ec46c0a2c663

SHA256
756ee2c303f097f361c1f6f16f118612acd5ceb277fd7642695b36fedf0dba68

SHA512
3dd06f405e036ade9fd52ac7ae189e8c1bafc48dc09f6f346f5b1ddb32ec43ecf527bd96d2c446d320cd22ea63d5eae430cab92533847d83a0af015224a13799

Download Submit
memory/2380-72-0x0000000005AE0000-0x0000000005DC9000-memory.dmp

Filesize
2.9MB

Download
memory/2380-78-0x0000000005AE0000-0x0000000005DC9000-memory.dmp

Filesize
2.9MB

Download
memory/2380-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2380-64-0x0000000005AE0000-0x0000000005DC9000-memory.dmp

Filesize
2.9MB

Download
memory/2380-76-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2588-112-0x0000000000400000-0x00000000006E9000-memory.dmp

Filesize
2.9MB

Download
memory/2588-115-0x0000000000400000-0x00000000006E9000-memory.dmp

Filesize
2.9MB

Download
memory/2588-73-0x0000000000400000-0x00000000006E9000-memory.dmp

Filesize
2.9MB

Download
memory/2588-137-0x0000000000400000-0x00000000006E9000-memory.dmp

Filesize
2.9MB

Download
memory/2588-134-0x0000000000400000-0x00000000006E9000-memory.dmp

Filesize
2.9MB

Download
memory/2588-131-0x0000000000400000-0x00000000006E9000-memory.dmp

Filesize
2.9MB

Download
memory/2588-77-0x0000000000400000-0x00000000006E9000-memory.dmp

Filesize
2.9MB

Download
memory/2588-128-0x0000000000400000-0x00000000006E9000-memory.dmp

Filesize
2.9MB

Download
memory/2588-81-0x0000000000400000-0x00000000006E9000-memory.dmp

Filesize
2.9MB

Download
memory/2588-84-0x0000000000400000-0x00000000006E9000-memory.dmp

Filesize
2.9MB

Download
memory/2588-87-0x0000000000400000-0x00000000006E9000-memory.dmp

Filesize
2.9MB

Download
memory/2588-90-0x0000000000400000-0x00000000006E9000-memory.dmp

Filesize
2.9MB

Download
memory/2588-93-0x0000000000400000-0x00000000006E9000-memory.dmp

Filesize
2.9MB

Download
memory/2588-94-0x0000000002230000-0x00000000022D2000-memory.dmp

Filesize
648KB

Download
memory/2588-100-0x0000000000400000-0x00000000006E9000-memory.dmp

Filesize
2.9MB

Download
memory/2588-103-0x0000000000400000-0x00000000006E9000-memory.dmp

Filesize
2.9MB

Download
memory/2588-106-0x0000000000400000-0x00000000006E9000-memory.dmp

Filesize
2.9MB

Download
memory/2588-109-0x0000000000400000-0x00000000006E9000-memory.dmp

Filesize
2.9MB

Download
memory/2588-125-0x0000000000400000-0x00000000006E9000-memory.dmp

Filesize
2.9MB

Download
memory/2588-122-0x0000000000400000-0x00000000006E9000-memory.dmp

Filesize
2.9MB

Download
memory/2588-119-0x0000000000400000-0x00000000006E9000-memory.dmp

Filesize
2.9MB

Download
memory/2764-69-0x0000000000400000-0x00000000006E9000-memory.dmp

Filesize
2.9MB

Download
memory/2764-65-0x0000000000400000-0x00000000006E9000-memory.dmp

Filesize
2.9MB

Download
memory/2764-66-0x0000000000400000-0x00000000006E9000-memory.dmp

Filesize
2.9MB

Download
memory/2888-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2888-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2888-75-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads