socks5systemz | 95e217da4c184170c705e9ef317b5d8333713f4f91435d0964e0e2cea03100ab

Analysis

max time kernel
112s
max time network
17s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
07-05-2024 14:00

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General

Target

db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.exe
Size

3.7MB
MD5

39e94318d7c3f194abcbbbd0aa08430c
SHA1

752c149fa64cfe7f3959aa6f03df22ac6e2b1b39
SHA256

db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4
SHA512

47e6d3a28b76cc1ed8f15ad04c86a49c022bd2cf4e87485afef5ae92e440943dc1de81da71bab070d516b2fec47465c43de8b6d4ccd4fda38462ba0c5cda1d18
SSDEEP

98304:+t4fr5joIbcLGaUEPGYnUJT0mE265nld1Z4:c4T5j6GagCZZHX4

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral23/memory/2500-93-0x00000000024F0000-0x0000000002592000-memory.dmp	family_socks5systemz

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

Processes:

db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmpisaprintstar.exeisaprintstar.exe

pid process

2780 db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp
2716 isaprintstar.exe
2500 isaprintstar.exe

pid	process
2780	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp
2716	isaprintstar.exe
2500	isaprintstar.exe

Loads dropped DLL 5 IoCs

Processes:

db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.exedb58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp

pid	process
1976	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.exe
2780	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp
2780	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp
2780	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp
2780	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp

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

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.exedb58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp

description	pid	process	target process
PID 1976 wrote to memory of 2780	1976	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.exe	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp
PID 1976 wrote to memory of 2780	1976	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.exe	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp
PID 1976 wrote to memory of 2780	1976	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.exe	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp
PID 1976 wrote to memory of 2780	1976	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.exe	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp
PID 1976 wrote to memory of 2780	1976	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.exe	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp
PID 1976 wrote to memory of 2780	1976	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.exe	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp
PID 1976 wrote to memory of 2780	1976	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.exe	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp
PID 2780 wrote to memory of 2716	2780	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp	isaprintstar.exe
PID 2780 wrote to memory of 2716	2780	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp	isaprintstar.exe
PID 2780 wrote to memory of 2716	2780	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp	isaprintstar.exe
PID 2780 wrote to memory of 2716	2780	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp	isaprintstar.exe
PID 2780 wrote to memory of 2500	2780	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp	isaprintstar.exe
PID 2780 wrote to memory of 2500	2780	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp	isaprintstar.exe
PID 2780 wrote to memory of 2500	2780	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp	isaprintstar.exe
PID 2780 wrote to memory of 2500	2780	db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp	isaprintstar.exe

C:\Users\Admin\AppData\Local\Temp\db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.exe
"C:\Users\Admin\AppData\Local\Temp\db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1976

C:\Users\Admin\AppData\Local\Temp\is-GJS0M.tmp\db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp
"C:\Users\Admin\AppData\Local\Temp\is-GJS0M.tmp\db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp" /SL5="$40112,3599420,54272,C:\Users\Admin\AppData\Local\Temp\db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2780

C:\Users\Admin\AppData\Local\ISA Print Star\isaprintstar.exe
"C:\Users\Admin\AppData\Local\ISA Print Star\isaprintstar.exe" -i
3⤵
- Executes dropped EXE
PID:2716

C:\Users\Admin\AppData\Local\ISA Print Star\isaprintstar.exe
"C:\Users\Admin\AppData\Local\ISA Print Star\isaprintstar.exe" -s
3⤵
- Executes dropped EXE
PID:2500

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\ISA Print Star\isaprintstar.exe

Filesize
2.1MB

MD5
d4b7cddf536d362e1fd94007f125f19e

SHA1
90671a4aac9b7fcfc68410dbf8c5bbe2433ad4ad

SHA256
1c75afbb40809a51b7fe4fca3260c1e24392838995e8703bfee9e53913bf9921

SHA512
996c328891e25a602d6dc9832b623c0da91fc16d48d47694f69fa04581f3f0d062990cce6dd81a0439326c5e63678e8f92fcde667c7a068e5170e7d3287297aa

Download Submit
\Users\Admin\AppData\Local\Temp\is-GJS0M.tmp\db58eb77136d0a35453f949a25df9a2e0d344b389a136f966a1ec2c3c09ef2c4.tmp

Filesize
695KB

MD5
b345a6e75b97b9ce8df84d33087da9c0

SHA1
36785d14f8041abcb467ce79babe6e98850a1825

SHA256
d1b4da9f8724f4593b323c3754e5056b4d6222382d25eab5b113a097f2223286

SHA512
419cfd117d3fb58e024f2136efa9138f2c3d62a0d421025789267512b29a60c66cff9fd9106e180336cc37f1231d00cf412bc761fe2670ec19b96b537f1a054f

Download Submit
\Users\Admin\AppData\Local\Temp\is-L9M9T.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-L9M9T.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/1976-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1976-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1976-74-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2500-102-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2500-108-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2500-105-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2500-89-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2500-99-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2500-72-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2500-111-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2500-93-0x00000000024F0000-0x0000000002592000-memory.dmp

Filesize
648KB

Download
memory/2500-76-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2500-92-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2500-80-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2500-83-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2500-86-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2716-65-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2716-70-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2716-66-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2716-69-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2780-77-0x0000000003930000-0x0000000003B46000-memory.dmp

Filesize
2.1MB

Download
memory/2780-75-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2780-64-0x0000000003930000-0x0000000003B46000-memory.dmp

Filesize
2.1MB

Download
memory/2780-18-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download