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
23/03/2024, 11:26
Static task
static1
Behavioral task
behavioral1
Sample
d85357190e6be1331036f8cf9225d5c2.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
d85357190e6be1331036f8cf9225d5c2.exe
Resource
win10v2004-20240226-en
General
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Target
d85357190e6be1331036f8cf9225d5c2.exe
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Size
2.0MB
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MD5
d85357190e6be1331036f8cf9225d5c2
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SHA1
f5c994accc9fc16df9cd4f3e9e13fdea952c17be
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SHA256
d53e734f9a4bad2b0d36b7484cb445bd377192a77ddb0d753d5aa1d14e9db078
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SHA512
82dbbd85980edda224365afca6cd75a5f18c4d967a20aec7b2d180f559a90e3772a8c125cb59f03f7465bfee60b42cb93ed037a202f0e7c1bc7c68385430aa0c
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SSDEEP
49152:32VR72rAMT8ztu+OmTPjrF13w6GCDiIXSMr09sYe7D:mVR72cMT8zt8sF13wDCDiarQbc
Malware Config
Extracted
socks5systemz
http://bvctbsd.com/search/?q=67e28dd83958f721120bac1a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4fe8889b5e4fa9281ae978f471ea771795af8e05c64bdb22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668ff612c2ec92
Signatures
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Detect Socks5Systemz Payload 2 IoCs
resource yara_rule behavioral1/memory/2592-75-0x00000000022B0000-0x0000000002352000-memory.dmp family_socks5systemz behavioral1/memory/2592-87-0x00000000022B0000-0x0000000002352000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 2204 d85357190e6be1331036f8cf9225d5c2.tmp 1232 colorpicker.exe 2592 colorpicker.exe -
Loads dropped DLL 5 IoCs
pid Process 1948 d85357190e6be1331036f8cf9225d5c2.exe 2204 d85357190e6be1331036f8cf9225d5c2.tmp 2204 d85357190e6be1331036f8cf9225d5c2.tmp 2204 d85357190e6be1331036f8cf9225d5c2.tmp 2204 d85357190e6be1331036f8cf9225d5c2.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 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.
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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 1948 wrote to memory of 2204 1948 d85357190e6be1331036f8cf9225d5c2.exe 28 PID 1948 wrote to memory of 2204 1948 d85357190e6be1331036f8cf9225d5c2.exe 28 PID 1948 wrote to memory of 2204 1948 d85357190e6be1331036f8cf9225d5c2.exe 28 PID 1948 wrote to memory of 2204 1948 d85357190e6be1331036f8cf9225d5c2.exe 28 PID 1948 wrote to memory of 2204 1948 d85357190e6be1331036f8cf9225d5c2.exe 28 PID 1948 wrote to memory of 2204 1948 d85357190e6be1331036f8cf9225d5c2.exe 28 PID 1948 wrote to memory of 2204 1948 d85357190e6be1331036f8cf9225d5c2.exe 28 PID 2204 wrote to memory of 1232 2204 d85357190e6be1331036f8cf9225d5c2.tmp 29 PID 2204 wrote to memory of 1232 2204 d85357190e6be1331036f8cf9225d5c2.tmp 29 PID 2204 wrote to memory of 1232 2204 d85357190e6be1331036f8cf9225d5c2.tmp 29 PID 2204 wrote to memory of 1232 2204 d85357190e6be1331036f8cf9225d5c2.tmp 29 PID 2204 wrote to memory of 2592 2204 d85357190e6be1331036f8cf9225d5c2.tmp 30 PID 2204 wrote to memory of 2592 2204 d85357190e6be1331036f8cf9225d5c2.tmp 30 PID 2204 wrote to memory of 2592 2204 d85357190e6be1331036f8cf9225d5c2.tmp 30 PID 2204 wrote to memory of 2592 2204 d85357190e6be1331036f8cf9225d5c2.tmp 30
Processes
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C:\Users\Admin\AppData\Local\Temp\d85357190e6be1331036f8cf9225d5c2.exe"C:\Users\Admin\AppData\Local\Temp\d85357190e6be1331036f8cf9225d5c2.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1948 -
C:\Users\Admin\AppData\Local\Temp\is-CR46R.tmp\d85357190e6be1331036f8cf9225d5c2.tmp"C:\Users\Admin\AppData\Local\Temp\is-CR46R.tmp\d85357190e6be1331036f8cf9225d5c2.tmp" /SL5="$5014E,1779906,54272,C:\Users\Admin\AppData\Local\Temp\d85357190e6be1331036f8cf9225d5c2.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2204 -
C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i3⤵
- Executes dropped EXE
PID:1232
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C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s3⤵
- Executes dropped EXE
PID:2592
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
832KB
MD56f1ede11b4b791ed96269a359b21916b
SHA18f2c964a832299c3b3b72dc67e68c4218f825f6c
SHA25682def92c2309d93c2730df89b5528f57b260519c63acbc8ba7bcecca5fbd70e2
SHA512c09ada433ada0f31cfd92951a7cf290ab24797a96097becc18a102e40d8f7a8a68e6e531e1d47bb368604961857d754dd7c3dc658b338c0d88dd2142642cde36
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Filesize
2.1MB
MD57d196988eb734b40f3cdeb7fcfca2ac7
SHA1936ec9251680709686e08afee2b21947fba3d078
SHA256d1c4a6fdab2ee9d3e29cff002c76f83ece20f08806a11d44432313ae43d061f0
SHA512c91705865a852d3e3a0a4dec16d075705b78c9e5547b9e169896400c6080d4c28b2c58183ac837ab1f858b06ecd5f68d5495a6534dd145ef3c0f15c381d1e91e
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Filesize
677KB
MD592f7775908bb12183914bb0753782913
SHA18d1091da36832942d48f2fe9a1a216fdd556b9c4
SHA256a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed
SHA5127e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3