Analysis
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max time kernel
152s -
max time network
69s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
11/10/2022, 20:52
Static task
static1
Behavioral task
behavioral1
Sample
6ec3355953bf23d2a38f074496655bf7f4464c13c4cddcde14d096b745ecf623.exe
Resource
win7-20220812-en
windows7-x64
Behavioral task
behavioral2
Sample
6ec3355953bf23d2a38f074496655bf7f4464c13c4cddcde14d096b745ecf623.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
General
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Target
6ec3355953bf23d2a38f074496655bf7f4464c13c4cddcde14d096b745ecf623.exe
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Size
44KB
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MD5
6b0d0eb84bfc5146ad4bb73ebd77b920
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SHA1
e524831e843169de8eda6a256c282805b0bb5dc6
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SHA256
6ec3355953bf23d2a38f074496655bf7f4464c13c4cddcde14d096b745ecf623
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SHA512
329b83003c30360d1d55670fbe8481b80635ad29fe455d5bb0ab0968d57224948652744e9693d53700c93908fe40185104c10fcb7acfcafa885fc02cbe693e01
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SSDEEP
768:1c/Hda9/trTlWAXe04H7cHPHYmug6UXQm1dIZE2ocOT77e:1/trT4pHyj6S3T77
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" nhsij.exe -
Executes dropped EXE 1 IoCs
pid Process 872 nhsij.exe -
Loads dropped DLL 2 IoCs
pid Process 2016 6ec3355953bf23d2a38f074496655bf7f4464c13c4cddcde14d096b745ecf623.exe 2016 6ec3355953bf23d2a38f074496655bf7f4464c13c4cddcde14d096b745ecf623.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ nhsij.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\nhsij = "C:\\Users\\Admin\\nhsij.exe" nhsij.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe 872 nhsij.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2016 6ec3355953bf23d2a38f074496655bf7f4464c13c4cddcde14d096b745ecf623.exe 872 nhsij.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 2016 wrote to memory of 872 2016 6ec3355953bf23d2a38f074496655bf7f4464c13c4cddcde14d096b745ecf623.exe 28 PID 2016 wrote to memory of 872 2016 6ec3355953bf23d2a38f074496655bf7f4464c13c4cddcde14d096b745ecf623.exe 28 PID 2016 wrote to memory of 872 2016 6ec3355953bf23d2a38f074496655bf7f4464c13c4cddcde14d096b745ecf623.exe 28 PID 2016 wrote to memory of 872 2016 6ec3355953bf23d2a38f074496655bf7f4464c13c4cddcde14d096b745ecf623.exe 28 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27 PID 872 wrote to memory of 2016 872 nhsij.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\6ec3355953bf23d2a38f074496655bf7f4464c13c4cddcde14d096b745ecf623.exe"C:\Users\Admin\AppData\Local\Temp\6ec3355953bf23d2a38f074496655bf7f4464c13c4cddcde14d096b745ecf623.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2016 -
C:\Users\Admin\nhsij.exe"C:\Users\Admin\nhsij.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:872
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
44KB
MD5193e55b27f4fc89dcecf0401405a027e
SHA135770d08b0c40efeba9dcc117b48c4bfabcba420
SHA25640f1b7c94aa67b7d08f40572f980ce21bb15c2a0a32fdb18b29c894c572a9c7a
SHA5126ac48ee8932873509a26dbff169a575eac46ed1b0f7abdb5790850cf9d34b0607b631291f21a2d5ff7dd44c981ff692ec8d757929b0b448316cd18aae4da5ddd
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Filesize
44KB
MD5193e55b27f4fc89dcecf0401405a027e
SHA135770d08b0c40efeba9dcc117b48c4bfabcba420
SHA25640f1b7c94aa67b7d08f40572f980ce21bb15c2a0a32fdb18b29c894c572a9c7a
SHA5126ac48ee8932873509a26dbff169a575eac46ed1b0f7abdb5790850cf9d34b0607b631291f21a2d5ff7dd44c981ff692ec8d757929b0b448316cd18aae4da5ddd
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Filesize
44KB
MD5193e55b27f4fc89dcecf0401405a027e
SHA135770d08b0c40efeba9dcc117b48c4bfabcba420
SHA25640f1b7c94aa67b7d08f40572f980ce21bb15c2a0a32fdb18b29c894c572a9c7a
SHA5126ac48ee8932873509a26dbff169a575eac46ed1b0f7abdb5790850cf9d34b0607b631291f21a2d5ff7dd44c981ff692ec8d757929b0b448316cd18aae4da5ddd
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Filesize
44KB
MD5193e55b27f4fc89dcecf0401405a027e
SHA135770d08b0c40efeba9dcc117b48c4bfabcba420
SHA25640f1b7c94aa67b7d08f40572f980ce21bb15c2a0a32fdb18b29c894c572a9c7a
SHA5126ac48ee8932873509a26dbff169a575eac46ed1b0f7abdb5790850cf9d34b0607b631291f21a2d5ff7dd44c981ff692ec8d757929b0b448316cd18aae4da5ddd