Analysis
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max time kernel
146s -
max time network
137s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
25/03/2024, 01:00
Static task
static1
Behavioral task
behavioral1
Sample
13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.exe
Resource
win10v2004-20240226-en
General
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Target
13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.exe
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Size
1.9MB
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MD5
02c9d37b3eebbc186b6fc262cd929762
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SHA1
492503ac894a9e9e78211cced39ed0b0052ad737
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SHA256
13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d
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SHA512
270dc2b769c094403d14777c42d13df23c666bfc868659bc7f81020ec95b338c766ea6a5836281951e69c59945db205e7afab9a6367d13de118dd97b1fec38f0
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SSDEEP
24576:320yWIKtk8hG3DLgGM+OGOBTYQ5BBdCHIMy9J9JnHYNOZZ6sN0zQeCpeJdU0y8vu:32etDGFM+2f7LDRkOZ/MCASu98
Malware Config
Extracted
socks5systemz
http://buzojyd.com/search/?q=67e28dd83f0fa47b1407ab4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa44e8889b5e4fa9281ae978a271ea771795af8e05c642db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668dfd19c5ec94
Signatures
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Detect Socks5Systemz Payload 3 IoCs
resource yara_rule behavioral1/memory/1296-78-0x00000000021A0000-0x0000000002242000-memory.dmp family_socks5systemz behavioral1/memory/1296-82-0x00000000021A0000-0x0000000002242000-memory.dmp family_socks5systemz behavioral1/memory/1296-91-0x00000000021A0000-0x0000000002242000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 364 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.tmp 2844 markdownpad32.exe 1296 markdownpad32.exe -
Loads dropped DLL 6 IoCs
pid Process 2056 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.exe 364 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.tmp 364 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.tmp 364 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.tmp 364 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.tmp 364 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.tmp -
Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description ioc Destination IP 45.155.250.90 -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 2056 wrote to memory of 364 2056 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.exe 28 PID 2056 wrote to memory of 364 2056 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.exe 28 PID 2056 wrote to memory of 364 2056 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.exe 28 PID 2056 wrote to memory of 364 2056 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.exe 28 PID 2056 wrote to memory of 364 2056 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.exe 28 PID 2056 wrote to memory of 364 2056 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.exe 28 PID 2056 wrote to memory of 364 2056 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.exe 28 PID 364 wrote to memory of 2844 364 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.tmp 29 PID 364 wrote to memory of 2844 364 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.tmp 29 PID 364 wrote to memory of 2844 364 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.tmp 29 PID 364 wrote to memory of 2844 364 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.tmp 29 PID 364 wrote to memory of 1296 364 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.tmp 30 PID 364 wrote to memory of 1296 364 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.tmp 30 PID 364 wrote to memory of 1296 364 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.tmp 30 PID 364 wrote to memory of 1296 364 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.tmp 30
Processes
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C:\Users\Admin\AppData\Local\Temp\13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.exe"C:\Users\Admin\AppData\Local\Temp\13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2056 -
C:\Users\Admin\AppData\Local\Temp\is-FT5JC.tmp\13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.tmp"C:\Users\Admin\AppData\Local\Temp\is-FT5JC.tmp\13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.tmp" /SL5="$4001C,1676256,54272,C:\Users\Admin\AppData\Local\Temp\13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:364 -
C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe"C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe" -i3⤵
- Executes dropped EXE
PID:2844
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C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe"C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe" -s3⤵
- Executes dropped EXE
PID:1296
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.8MB
MD5e712dbcea5c690365f89e154dce0b28e
SHA10ab2b0f6050abff77df5d48e58b400c57b6f4fc0
SHA25658a4ba4a55e3384a8a7f11edd0750521455969ee72deea693845bbbfb6c52857
SHA512c6bb4f97ced530ec4f901c2b26739c03b7c20807feb3e22bbdfef72a2ce3b6b553ba5927513a8781b423f3fc188bcd244d29b8c6b17fed83ed9e4c9e1d29bac4
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
32KB
MD5b6f11a0ab7715f570f45900a1fe84732
SHA177b1201e535445af5ea94c1b03c0a1c34d67a77b
SHA256e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67
SHA51278a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771
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Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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\Users\Admin\AppData\Local\Temp\is-FT5JC.tmp\13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.tmp
Filesize677KB
MD588d7ea648defbc2597fa38ef83112eda
SHA12bce9acfb1b5e08dc29c695eff12fc80949c6440
SHA2565a53b8bd78b1bbf24136b4d8d8191f503abcc24934626ed6f15bf9f6dee17b68
SHA512050ce971e1f7a4e92d272c9c3c9f96f1214286523b018a75084c76dbebb5f32a717afbd9af9c68b7ad71f738c0a331640a8fe765cb4def90678eae4769b2e66a