Analysis
- max time kernel
149s - max time network
151s - platform
ubuntu-18.04_amd64 - resource
ubuntu1804-amd64-20260127-en - resource tags
arch:amd64arch:i386image:ubuntu1804-amd64-20260127-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system - submitted
10/05/2026, 12:19
Static task
static1
Behavioral task
behavioral1
Sample
amd64.elf
Resource
ubuntu1804-amd64-20260127-en
5 signatures
150 seconds
General
- Target amd64.elf
- Size 4.7MB
- Sample260510-phebjabs3n
- SHA256 3748ac46365da967842bc6208c880ea7bab92458f2ada64bafb2c911f4c0af90
- MD5 68df256906f64c700c948c255d6f95eb
- SHA1 efa81b1f2b989a15cbcbf69f4cacd632140f0260
- SHA512 07d2e90c1300a44e0b55a6ec37e1011bb282650bcbe41b1bf72564439c32c7c9412e41f10b461258fd5c6a385b5348ee50717d976e25a47b04e1ff6e2019a08c
- SSDEEP 49152:6D3PCIClAuQ8L12I7GbraWm5EBbSbZYZo8UxYh5a64O:pIClZQ7I7QiEY2hUZO
- TLSH T112363B17EC9586E8C0EAE23089629253BE717C495B3023D72F50F7392F72BD4AA79744
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Creates/modifies environment variables 1 TTPs 3 IoCs
Creating/modifying environment variables is a common persistence mechanism.
description ioc Process File opened for modification /root/.bashrc amd64.elf File opened for modification /home/user/.bashrc amd64.elf File opened for modification /etc/profile amd64.elf - Write file to user bin folder 2 IoCs
description ioc Process File opened for modification /usr/bin/test_write amd64.elf File opened for modification /usr/bin/sysd amd64.elf - Modifies Bash startup script 2 TTPs 3 IoCs
description ioc Process File opened for modification /etc/profile amd64.elf File opened for modification /root/.bashrc amd64.elf File opened for modification /home/user/.bashrc amd64.elf - Enumerates kernel/hardware configuration 1 TTPs 1 IoCs
Reads contents of /sys virtual filesystem to enumerate system information.
description ioc Process File opened for reading /sys/kernel/mm/transparent_hugepage/hpage_pmd_size amd64.elf -
description ioc Process File opened for reading /proc/stat amd64.elf File opened for reading /proc/meminfo amd64.elf
Processes
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Event Triggered Execution
1Unix Shell Configuration Modification
1Hijack Execution Flow
1Path Interception by PATH Environment Variable
1Privilege Escalation
Boot or Logon Autostart Execution
1Event Triggered Execution
1Unix Shell Configuration Modification
1Hijack Execution Flow
1Path Interception by PATH Environment Variable
1Replay Monitor
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Downloads
- Path /usr/bin/sysd
- Size 4.7MB
- SHA256 3748ac46365da967842bc6208c880ea7bab92458f2ada64bafb2c911f4c0af90
- MD5 68df256906f64c700c948c255d6f95eb
- SHA1 efa81b1f2b989a15cbcbf69f4cacd632140f0260
- SHA512 07d2e90c1300a44e0b55a6ec37e1011bb282650bcbe41b1bf72564439c32c7c9412e41f10b461258fd5c6a385b5348ee50717d976e25a47b04e1ff6e2019a08c
- SSDEEP 49152:6D3PCIClAuQ8L12I7GbraWm5EBbSbZYZo8UxYh5a64O:pIClZQ7I7QiEY2hUZO
- TLSH T112363B17EC9586E8C0EAE23089629253BE717C495B3023D72F50F7392F72BD4AA79744
- MD5 SHA1 SHA512 SSDEEP TLSH