socks5systemz | b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5

General

Target

b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.exe
Size

5.2MB
MD5

3b34221c812ca27fecdaade575f0f3d5
SHA1

128e802e8591517fd436d23361cd793413562016
SHA256

b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5
SHA512

122750a58f649dd762069de06a06fbaed3d5232d643f29c0d8900f02b2eb7394d0fe9dc86b4ea2cb8d26698517475aa7776338be16ba826bcbf9e58bd1e18d8e
SSDEEP

98304:mpG+hiD88frKf9v8GEwJ3NqXcAzT0NYKxYVRLQUF1PDEE6efwkz2qO1jZ:EhE88f+lJ1xNqXMYVRLQU8XePxOL

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2900-94-0x0000000000890000-0x0000000000932000-memory.dmp	family_socks5systemz
behavioral1/memory/2900-118-0x0000000000890000-0x0000000000932000-memory.dmp	family_socks5systemz
behavioral1/memory/2900-119-0x0000000000890000-0x0000000000932000-memory.dmp	family_socks5systemz

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

Processes:

b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.tmpmidiplayer32.exemidiplayer32.exe

pid process

2156 b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.tmp
1296 midiplayer32.exe
2900 midiplayer32.exe

Loads dropped DLL 3 IoCs

Processes:

b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.tmp

pid	process
2156	b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.tmp
2156	b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.tmp
2156	b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.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:

b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.tmp

pid process

2156 b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.tmp

description	ioc
Destination IP	141.98.234.31

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.exeb7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.tmp

description	pid	process	target process
PID 3280 wrote to memory of 2156	3280	b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.exe	b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.tmp
PID 3280 wrote to memory of 2156	3280	b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.exe	b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.tmp
PID 3280 wrote to memory of 2156	3280	b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.exe	b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.tmp
PID 2156 wrote to memory of 1296	2156	b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.tmp	midiplayer32.exe
PID 2156 wrote to memory of 1296	2156	b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.tmp	midiplayer32.exe
PID 2156 wrote to memory of 1296	2156	b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.tmp	midiplayer32.exe
PID 2156 wrote to memory of 2900	2156	b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.tmp	midiplayer32.exe
PID 2156 wrote to memory of 2900	2156	b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.tmp	midiplayer32.exe
PID 2156 wrote to memory of 2900	2156	b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.tmp	midiplayer32.exe

C:\Users\Admin\AppData\Local\Temp\b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.exe
"C:\Users\Admin\AppData\Local\Temp\b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3280

C:\Users\Admin\AppData\Local\Temp\is-27BBF.tmp\b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.tmp
"C:\Users\Admin\AppData\Local\Temp\is-27BBF.tmp\b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.tmp" /SL5="$150066,5172424,54272,C:\Users\Admin\AppData\Local\Temp\b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2156

C:\Users\Admin\AppData\Local\Sounder Midi Player\midiplayer32.exe
"C:\Users\Admin\AppData\Local\Sounder Midi Player\midiplayer32.exe" -i
3⤵
- Executes dropped EXE
PID:1296

C:\Users\Admin\AppData\Local\Sounder Midi Player\midiplayer32.exe
"C:\Users\Admin\AppData\Local\Sounder Midi Player\midiplayer32.exe" -s
3⤵
- Executes dropped EXE
PID:2900

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\Sounder Midi Player\midiplayer32.exe
Filesize
2.5MB

MD5
ef8af6ac305f466743721a6a4e0694c5

SHA1
78810cbf651bff2aed4d529d5c8e61eff485d4da

SHA256
656059b9831904db21067b074044a2c0ebbda4a0ed6050f190266716aa7f6eef

SHA512
c574420853f2a92a40fd0119f2fdf02380d859b8be56bfb45c1921501878c605dfde718eea6082112734d0f067d51080d33acd985bbf94d1cb3cd62953986e1f

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-27BBF.tmp\b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.tmp
Filesize
680KB

MD5
29ac48e0713a4220ff4b4b47efe542b4

SHA1
9ea8bdf5547a541b755f4b2c0bc14bf817885e94

SHA256
deead3dd651930ad0bec5d7bae647d7a1637b48bb7495593995218c4cd6dd67c

SHA512
501cdc7df40fb0cd1a114b4d5f5dcab765141c58f29bafa1e4a816319354a3d6d9e0d4b2ee5a2fad64f3fb08fb7bbdaad30551587a875f8fbdc2acdb8f67a3d4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-U4FQF.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-U4FQF.tmp\_isetup\_isdecmp.dll
Filesize
32KB

MD5
b6f11a0ab7715f570f45900a1fe84732

SHA1
77b1201e535445af5ea94c1b03c0a1c34d67a77b

SHA256
e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

SHA512
78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

Download Submit
memory/1296-71-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/1296-65-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/1296-67-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/1296-66-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/2156-77-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2156-19-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2900-81-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/2900-111-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/2900-75-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/2900-126-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/2900-123-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/2900-78-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/2900-119-0x0000000000890000-0x0000000000932000-memory.dmp

Filesize
648KB

Download
memory/2900-82-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/2900-85-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/2900-88-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/2900-91-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/2900-94-0x0000000000890000-0x0000000000932000-memory.dmp

Filesize
648KB

Download
memory/2900-97-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/2900-102-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/2900-105-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/2900-108-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/2900-73-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/2900-114-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/2900-117-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/2900-118-0x0000000000890000-0x0000000000932000-memory.dmp

Filesize
648KB

Download
memory/3280-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3280-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3280-76-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

pid	process
2156	b7688f154e3498d0a027187e51856f9083d4beb07c73acef94bd1f302b0c12f5.tmp
1296	midiplayer32.exe
2900	midiplayer32.exe

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads