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Analysis
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max time kernel
136s -
max time network
148s -
platform
ubuntu-18.04_amd64 -
resource
ubuntu1804-amd64-20240611-en -
resource tags
arch:amd64arch:i386image:ubuntu1804-amd64-20240611-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system -
submitted
22/01/2025, 16:11
Behavioral task
behavioral1
Sample
krfk64.elf
Resource
ubuntu1804-amd64-20240611-en
4 signatures
150 seconds
General
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Target
krfk64.elf
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Size
156KB
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MD5
eebf4b2b2defd1f78281d591461eefdc
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SHA1
9bbadec29e767d24c22230ec64bc64369c21ca25
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SHA256
19b3668761376a902bed2ff27aac7107f14e9f76eae85f06719c25c7777c85e9
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SHA512
7b92b6cb0a39694a8e5221bbe7e521494e2aaa2e116a7c7868a37b332ea29c92fcbdb256b984fa85b30609d48fae4058f4a140b84c9ed4e2454d3aebe1ff0d74
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SSDEEP
3072:nMm4EPBMqOlPhX6qE2efpchx0XXzbD9jC4CU/ek21iZkn9rkKUb:nMm4EP6qOlPhZeywIVi7E9r9M
Score
7/10
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 1491 krfk64.elf -
Traces itself 1 IoCs
Traces itself to prevent debugging attempts
pid Process 1491 krfk64.elf -
Changes its process name 1 IoCs
description ioc pid Process Changes the process name, possibly in an attempt to hide itself httpd 1490 krfk64.elf -
Writes file to tmp directory 9 IoCs
Malware often drops required files in the /tmp directory.
description ioc Process File opened for modification /tmp/Z[HI_J]VZQY> krfk64.elf File opened for modification /tmp/\WPI_J]VZQY> krfk64.elf File opened for modification /tmp/Z[HxjizjI_J]VZQY> krfk64.elf File opened for modification /tmp/[J]Z[X_KRJI_J]VZQY> krfk64.elf File opened for modification /tmp/Z[HSWM]I_J]VZQY> krfk64.elf File opened for modification /tmp/M\WPI_J]VZQY> krfk64.elf File opened for modification /tmp/Z[HxjizjaI_J]VZQY> krfk64.elf File opened for modification /tmp/Z[HI_J]VZQY> krfk64.elf File opened for modification /tmp/[J]I_J]VZQY> krfk64.elf