General
- Target headcrab.sh
- Size 27KB
- Sample260628-pkfblshs2w
- SHA256 1cc2cec68b7d9ac04e7340788b974f94eebe9134a08726eb161814023540adee
- MD5 6e006362a8e3f127d35cda154a164d4c
- SHA1 2d32b6f6df318eb0f5e767c6196d6b24c8351fc1
- SHA512 0e5957a71bfd1d1901fded9ce3e8e9adffa8582014e1436724446fa8e98b5d10b60566f1be8bf770a07508408b7bacd28d1528e2c9c91b0a941996839c173475
- SSDEEP 384:gronMbB/sIsQUgM2avcKpzMwObnUlLej3t:grqMyIsQUgM2avPzMwO4lLe5
- TLSH T1E2C24129773666B437198379C95BC013B62A5013000AAC6C3CEFD6587F453AD51FE6AF
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
headcrab.sh
Resource
ubuntu1804-amd64-20260513-en
Behavioral task
behavioral2
Sample
headcrab.sh
Resource
debian9-armhf-20260513-en
Behavioral task
behavioral3
Sample
headcrab.sh
Resource
debian9-mipsbe-20260513-en
Behavioral task
behavioral4
Sample
headcrab.sh
Resource
debian9-mipsel-20260513-en
Malware Config
Targets
-
- Target headcrab.sh
- Size 27KB
- SHA256 1cc2cec68b7d9ac04e7340788b974f94eebe9134a08726eb161814023540adee
- MD5 6e006362a8e3f127d35cda154a164d4c
- SHA1 2d32b6f6df318eb0f5e767c6196d6b24c8351fc1
- SHA512 0e5957a71bfd1d1901fded9ce3e8e9adffa8582014e1436724446fa8e98b5d10b60566f1be8bf770a07508408b7bacd28d1528e2c9c91b0a941996839c173475
- SSDEEP 384:gronMbB/sIsQUgM2avcKpzMwObnUlLej3t:grqMyIsQUgM2avPzMwO4lLe5
- TLSH T1E2C24129773666B437198379C95BC013B62A5013000AAC6C3CEFD6587F453AD51FE6AF
- MD5 SHA1 SHA512 SSDEEP TLSH
-
File and Directory Permissions Modification
Adversaries may modify file or directory permissions to evade defenses.
-
Executes dropped EXE
-
OS Credential Dumping
Adversaries may attempt to dump credentials to use it in password cracking.
-
Abuse Elevation Control Mechanism: Sudo and Sudo Caching
Abuse sudo or cached sudo credentials to execute code.
-
Checks mountinfo of local process
Checks mountinfo of running processes which indicate if it is running in chroot jail.
-
Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
-
Enumerates running processes
Discovers information about currently running processes on the system
MITRE ATT&CK Enterprise v16
Defense Evasion
Abuse Elevation Control Mechanism
1Sudo and Sudo Caching
1File and Directory Permissions Modification
1Linux and Mac File and Directory Permissions Modification
1Indicator Removal
1Clear Linux or Mac System Logs
1Virtualization/Sandbox Evasion
2System Checks
2