General
- Target be0fe6a1344b052d4f61cca910f7d26ad02d283f280014eeca0d1cc729e6822a_pre-append.sh
- Size 15KB
- Sample260913-th1a8a11ay
- SHA256 f0933f2f2e729f34aaa7c3caae7c18eb955bd3a27fe1e37bc2cfe719d63ea72e
- MD5 df67e6dc56750610a09c8631cde6239a
- SHA1 75e2e7257f7db684a28b9788cc8847440ed8919d
- SHA512 c72255793129409565b18de4fd625cd5f79666df225b789e2c5f512f391f95c4138226d6ca3e7492a46efbafac5f55853174302ac15d7d2409051cc7ccc920f3
- SSDEEP 384:YWOWwvrR3YsbdyxQws1JBcUrMtKe9aVDlvSVES3zf:tOW2j1JHYKTsESr
- TLSH T18162C0784DDACC5BE00EC8EA63EE7BC854A231FADBE430D556C90A8591D5F396350570
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
be0fe6a1344b052d4f61cca910f7d26ad02d283f280014eeca0d1cc729e6822a_pre-append.sh
Resource
ubuntu1804-amd64-20260513-en
Behavioral task
behavioral2
Sample
be0fe6a1344b052d4f61cca910f7d26ad02d283f280014eeca0d1cc729e6822a_pre-append.sh
Resource
debian9-armhf-20260513-en
Behavioral task
behavioral3
Sample
be0fe6a1344b052d4f61cca910f7d26ad02d283f280014eeca0d1cc729e6822a_pre-append.sh
Resource
debian9-mipsbe-20260513-en
Behavioral task
behavioral4
Sample
be0fe6a1344b052d4f61cca910f7d26ad02d283f280014eeca0d1cc729e6822a_pre-append.sh
Resource
debian9-mipsel-20260513-en
Malware Config
Targets
-
- Target be0fe6a1344b052d4f61cca910f7d26ad02d283f280014eeca0d1cc729e6822a_pre-append.sh
- Size 15KB
- SHA256 f0933f2f2e729f34aaa7c3caae7c18eb955bd3a27fe1e37bc2cfe719d63ea72e
- MD5 df67e6dc56750610a09c8631cde6239a
- SHA1 75e2e7257f7db684a28b9788cc8847440ed8919d
- SHA512 c72255793129409565b18de4fd625cd5f79666df225b789e2c5f512f391f95c4138226d6ca3e7492a46efbafac5f55853174302ac15d7d2409051cc7ccc920f3
- SSDEEP 384:YWOWwvrR3YsbdyxQws1JBcUrMtKe9aVDlvSVES3zf:tOW2j1JHYKTsESr
- TLSH T18162C0784DDACC5BE00EC8EA63EE7BC854A231FADBE430D556C90A8591D5F396350570
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Family: xmrig
XMRig is a high performance, open source, cross platform CPU/GPU miner.
-
Adds new SSH keys
Linux special file to hold SSH keys. The threat actor may add new keys for further remote access.
-
File and Directory Permissions Modification
Adversaries may modify file or directory permissions to evade defenses.
-
Deletes system logs
Deletes log file which contains global system messages. Adversaries may delete system logs to minimize their footprint.
-
Disables AppArmor Mandatory Access Control
Stops or disables AppArmor via systemctl, removing mandatory access control restrictions on process capabilities and file access.
-
Executes dropped EXE
-
Writes DNS configuration
Writes data to DNS resolver config file.
-
Creates/modifies Cron job
Cron allows running tasks on a schedule, and is commonly used for malware persistence.
-
Enumerates running processes
Discovers information about currently running processes on the system
-
Removes the immutable protection flag from a file
Uses chattr to remove the immutable flag from a file, allowing previously write-protected files to be modified or deleted.
-
Write file to user bin folder
-
Writes file to system bin folder
MITRE ATT&CK Enterprise v16
Persistence
Account Manipulation
1SSH Authorized Keys
1Boot or Logon Autostart Execution
1Boot or Logon Initialization Scripts
1RC Scripts
1Scheduled Task/Job
1Cron
1Privilege Escalation
Account Manipulation
1SSH Authorized Keys
1Boot or Logon Autostart Execution
1Boot or Logon Initialization Scripts
1RC Scripts
1Scheduled Task/Job
1Cron
1Defense Evasion
Deobfuscate/Decode Files or Information
1File and Directory Permissions Modification
2Linux and Mac File and Directory Permissions Modification
2Impair Defenses
3Disable or Modify System Firewall
1Disable or Modify Tools
2Indicator Removal
2Clear Linux or Mac System Logs
2