Analysis
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max time kernel
119s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
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submitted
11-11-2024 06:16
General
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Target
rkill.exe
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Size
1.7MB
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MD5
6d622dcc87edc9a7b10d35372ade816b
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SHA1
47d98825b03c507b85dec02a2297e03ebc925f30
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SHA256
d4ac5b3c525a5fd94019d80ff81b552e73b19b1bd0a554b9609cdd5e1b00955a
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SHA512
ed06f872a7c66ffeeb8cb8f6fedca06ccabf623f9cd188c4c7105428e8d6521ef8da0bac0564e14d2da914d2846369a9c04577a8cf7fb80cb62831e5497f2a58
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SSDEEP
49152:KpEsgw14kZV2HXsMnmjEREseBSsxHnfXsrHYi2Yijig:0wYJYW
Malware Config
Signatures
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Drops file in Drivers directory 1 IoCs
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Executes dropped EXE 1 IoCs
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Loads dropped DLL 3 IoCs
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Modifies system executable filetype association 2 TTPs 64 IoCs
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System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Modifies registry class 64 IoCs
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Opens file in notepad (likely ransom note) 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 7 IoCs
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Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
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Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\rkill.exe"C:\Users\Admin\AppData\Local\Temp\rkill.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\rkill64.exeC:\Users\Admin\AppData\Local\Temp\rkill.exe2⤵
- Drops file in Drivers directory
- Executes dropped EXE
- Modifies system executable filetype association
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\Notepad.exeNotepad.exe C:\Users\Admin\Desktop\Rkill.txt3⤵
- Opens file in notepad (likely ransom note)
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3KB
MD5e7a05f4a5d20d6e66813ac8afcce9ce4
SHA156e325e9276e6a995040fcb367a193099658722d
SHA256070e3fae740f87379d86584746cd68b88c8f974409783df108089a596ccbbccc
SHA512fa9493c27274b7510d9ec50b0223fcf394e5c83ac109c565feba9efb1101ba50dcdef7e693e545823eec3742bbf41a20ba9942adb86c431fc00aaba4654186a7
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Filesize
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
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Filesize
964KB
MD5ae368c10327fe7a8e5c875360e529b35
SHA1d69fad67631f48f2eee9109a368eb176356da531
SHA256797f0917162e74e64f556fd467cc13d10401e826309c3ed889574889a96b88c7
SHA512e7e6e4d29dfdc537b21fdffc6c1ac0674b55fdf6c61e5fecfbdde1fa271903db1291c50bac3263bc9f4ee7797689542f29770e0d98b8180453c39bc6058a5c67