Analysis
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max time kernel
150s -
max time network
154s -
platform
debian-12_armhf -
resource
debian12-armhf-20240221-en -
resource tags
arch:armhfimage:debian12-armhf-20240221-enkernel:6.1.0-17-armmp-lpaelocale:en-usos:debian-12-armhfsystem -
submitted
27-06-2024 01:19
Behavioral task
behavioral1
Sample
5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf
Resource
debian12-armhf-20240221-en
General
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Target
5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf
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Size
144KB
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MD5
2ee1a16fe7a360a0582cd1e68bcf0dc2
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SHA1
00544cc22cd6819bc4b95a717ba7837585f4546b
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SHA256
5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0
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SHA512
26950f2487918b5a94486f1ffe0c742a09c4ca6e1e2f86528109acf312d8f7a4cee3ac58bdc029cabb924093f3241433f3bd69af0bc7dc9ef905088054b53b07
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SSDEEP
3072:8b/k1s/WaaYWKw7P+n2OTF1gwS5fe7cTwM/97TH/U:8b/As+aaYWKw7PhOP+fe7ccM/9XHs
Malware Config
Signatures
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Deletes itself 1 IoCs
Processes:
5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elfpid process 705 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf -
Modifies Watchdog functionality 1 TTPs 2 IoCs
Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.
Processes:
5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elfdescription ioc process File opened for modification /dev/watchdog 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for modification /dev/misc/watchdog 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf -
Enumerates running processes
Discovers information about currently running processes on the system
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Writes file to system bin folder 1 TTPs 2 IoCs
Processes:
5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elfdescription ioc process File opened for modification /sbin/watchdog 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for modification /bin/watchdog 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf -
Changes its process name 1 IoCs
Processes:
5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elfdescription ioc pid process Changes the process name, possibly in an attempt to hide itself /bin/sh 705 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf -
Reads runtime system information 54 IoCs
Reads data from /proc virtual filesystem.
Processes:
5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elfdescription ioc process File opened for reading /proc/814/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/866/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/333/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/932/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/797/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/805/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/936/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/959/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/1015/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/348/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/777/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/887/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/1012/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/1014/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/1062/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/813/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/857/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/974/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/801/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/885/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/913/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/969/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/668/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/767/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/826/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/1036/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/1082/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/312/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/323/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/930/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/1039/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/856/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/862/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/955/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/768/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/802/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/771/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/828/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/837/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/995/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/237/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/334/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/909/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/991/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/978/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/1037/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/829/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/836/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/1084/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/832/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/1061/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/988/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/309/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf File opened for reading /proc/776/fd 5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf
Processes
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/tmp/5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf/tmp/5f2ac36fa105fc60d0d98a559a34ebbcde4a7198138bce3f58658d0508de24b0.elf1⤵
- Deletes itself
- Modifies Watchdog functionality
- Writes file to system bin folder
- Changes its process name
- Reads runtime system information
PID:705