socks5systemz | 935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6

General

Target

935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.exe
Size

4.7MB
MD5

c59664ebf86b27e920fd99e953a501c2
SHA1

1e5a0a1ff09e514684b26dcb0a3459e26968e7c0
SHA256

935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6
SHA512

b81d6ee64b84bb0cf65907113a4602f0d84702e3d42c5d077b7cded0f41d59432c8c42b2c1da311b3f69c989359190c3908606992fbf7a1958b5f967275f3e38
SSDEEP

98304:msXiH3MVPODhuwTf5NIpgFl39wHqGqqZoz5ALF9fb9OZo0x:7WPfUy39wTLoKbpOZoQ

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

ezjwtqj.ua

kzwzsgg.ua

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2464-92-0x00000000024C0000-0x0000000002562000-memory.dmp	family_socks5systemz

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

Processes:

935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmpvirtualsoundcard32.exevirtualsoundcard32.exe

pid process

1960 935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp
2456 virtualsoundcard32.exe
2464 virtualsoundcard32.exe

pid	process
1960	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp
2456	virtualsoundcard32.exe
2464	virtualsoundcard32.exe

Loads dropped DLL 5 IoCs

Processes:

935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.exe935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp

pid	process
2140	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.exe
1960	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp
1960	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp
1960	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp
1960	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp

Unexpected DNS network traffic destination 13 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

description	ioc
Destination IP	152.89.198.214
Destination IP	152.89.198.214
Destination IP	45.155.250.90
Destination IP	91.211.247.248
Destination IP	45.155.250.90
Destination IP	81.31.197.38
Destination IP	91.211.247.248
Destination IP	45.155.250.90
Destination IP	141.98.234.31
Destination IP	45.155.250.90
Destination IP	152.89.198.214
Destination IP	141.98.234.31
Destination IP	81.31.197.38

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:

935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp

pid process

1960 935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp

pid	process
1960	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.exe935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp

description	pid	process	target process
PID 2140 wrote to memory of 1960	2140	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.exe	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp
PID 2140 wrote to memory of 1960	2140	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.exe	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp
PID 2140 wrote to memory of 1960	2140	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.exe	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp
PID 2140 wrote to memory of 1960	2140	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.exe	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp
PID 2140 wrote to memory of 1960	2140	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.exe	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp
PID 2140 wrote to memory of 1960	2140	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.exe	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp
PID 2140 wrote to memory of 1960	2140	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.exe	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp
PID 1960 wrote to memory of 2456	1960	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp	virtualsoundcard32.exe
PID 1960 wrote to memory of 2456	1960	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp	virtualsoundcard32.exe
PID 1960 wrote to memory of 2456	1960	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp	virtualsoundcard32.exe
PID 1960 wrote to memory of 2456	1960	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp	virtualsoundcard32.exe
PID 1960 wrote to memory of 2464	1960	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp	virtualsoundcard32.exe
PID 1960 wrote to memory of 2464	1960	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp	virtualsoundcard32.exe
PID 1960 wrote to memory of 2464	1960	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp	virtualsoundcard32.exe
PID 1960 wrote to memory of 2464	1960	935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp	virtualsoundcard32.exe

C:\Users\Admin\AppData\Local\Temp\935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.exe
"C:\Users\Admin\AppData\Local\Temp\935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2140

C:\Users\Admin\AppData\Local\Temp\is-QE7EO.tmp\935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp
"C:\Users\Admin\AppData\Local\Temp\is-QE7EO.tmp\935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp" /SL5="$40016,4666061,54272,C:\Users\Admin\AppData\Local\Temp\935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1960

C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe
"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe" -i
3⤵
- Executes dropped EXE
PID:2456

C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe
"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe" -s
3⤵
- Executes dropped EXE
PID:2464

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

C:\Users\Admin\AppData\Local\Temp\is-QE7EO.tmp\935b6081b2426aafb317f2014f475d7cf6a28be0d0d0b77174d2f2c999dfc8f6.tmp
Filesize
680KB

MD5
6d75c2498ef0af9a91b71d0d81d1b95e

SHA1
1476ec8e947af9a397658bec20b17854042cc0c3

SHA256
468db6dd9e5c87c34d9cb7e56ddbfaf068bbe44436fa2cfc2ada8029051e4bee

SHA512
bdc9b460a463da60c019eda9dd40929a61e77081b699d6c3a4c05309280252f7493015cf463243ff9dd3e20ddd324db39a8697f312fabfea64c78aed9ddb5027

Download Submit
C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe
Filesize
2.7MB

MD5
31f7fcdda406c646eba01fce6f5f21ff

SHA1
bfff935eb21cbf384d4ec4775963d2f4e35aa910

SHA256
58d4e2c8094d160bba8bb3f68f01316a88281d7f5cc7a45d1b7ca81c1ae51a00

SHA512
265bc751cb350fcddcc574c84749e64ad3321bdf2ed12c9f497fcdfabcf4c7753b975b1f5ac5b648d990d7aa070096b877699888c9e8219b16fe5257f1851eb3

Download Submit
\Users\Admin\AppData\Local\Temp\is-4O2HB.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-4O2HB.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/1960-64-0x0000000005A00000-0x0000000005CC1000-memory.dmp

Filesize
2.8MB

Download
memory/1960-76-0x0000000005A00000-0x0000000005CC1000-memory.dmp

Filesize
2.8MB

Download
memory/1960-19-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1960-74-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2140-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2140-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2140-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2456-65-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2456-66-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2456-69-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2464-79-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2464-107-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2464-71-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2464-82-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2464-85-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2464-88-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2464-91-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2464-92-0x00000000024C0000-0x0000000002562000-memory.dmp

Filesize
648KB

Download
memory/2464-98-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2464-101-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2464-104-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2464-75-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2464-110-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2464-113-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2464-116-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2464-119-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2464-122-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2464-125-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2464-128-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2464-131-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2464-134-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads