MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 81e8a9cf02239aae8968b81185c9118421d3ad3c42fd2639fdf4a1bde5b6eeae. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.
Database Entry
Kaiji
Vendor detections: 11
| SHA256 hash: | 81e8a9cf02239aae8968b81185c9118421d3ad3c42fd2639fdf4a1bde5b6eeae |
|---|---|
| SHA3-384 hash: | d2115476821a4b40628e70e2e323e461b9b1487329d4226045c66b2cf341382998ccb18160943e73dd71b87d6b47248b |
| SHA1 hash: | a0389a94f239b41bca2fe72b4f46889aa8013696 |
| MD5 hash: | 1bb6f965a4aa35d7b01803731147efbf |
| humanhash: | bravo-monkey-seventeen-apart |
| File name: | linux_mipsel |
| Download: | download sample |
| Signature | Kaiji |
| File size: | 5'898'240 bytes |
| First seen: | 2025-02-16 16:06:56 UTC |
| Last seen: | 2025-02-17 07:25:55 UTC |
| File type: | elf |
| MIME type: | application/x-executable |
| ssdeep | 98304:yC91hAFxvW6WGVqq7g3JDCg76dAuE8iW5ay5mIOX+aaNcc8pNkxXkz8xBs3K4HUQ:yC91hAFxvW6WGVqq7g3JDCg76dAuE8ir |
| TLSH | T15E56E704ADC56BA6C06C9B7584EBCE9523B06D044AF12B271664FEDAB8762747F07CCC |
| gimphash | d32a616709154d99f5f34672a5e693bcff5dc106b2584b8d6f593ff16d689453 |
| TrID | 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12) 49.8% (.O) ELF Executable and Linkable format (generic) (4000/1) |
| Magika | elf |
| Reporter |  abuse_ch |
| Tags: | elf kaiji |
Intelligence
File Origin
# of uploads :
2
# of downloads :
96
Origin country :
DEVendor Threat Intelligence
Verdict:
Clean
Score:
82.2%
Link:
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file
Creating a process from a recently created file
Manages services
Connection attempt
Sets a written file as executable
Receives data from a server
Locks files
DNS request
Sends data to a server
Launching a process
Changes the time when the file was created, accessed, or modified
Sets a file as executable
Kills processes
Writes files to system subdirectory
Kills critical processes
Performs a bruteforce attack in the network
Creates or modifies files in /init.d to set up autorun
Verdict:
Unknown
Threat level:
0/10
Confidence:
100%
Tags:
crypto golang obfuscated
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
7
Number of processes launched:
1
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
MALICIOUS
Verdict:
Unknown
Result
Threat name:
Chaos
Detection:
malicious
Classification:
troj
Score:
56 / 100
Signature
Multi AV Scanner detection for submitted file
Yara detected Chaos
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
ELF
Threat name:
Linux.Trojan.Kaiji
Status:
Malicious
First seen:
2025-02-16 16:01:51 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 37 (43.24%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
kaiji
Score:
10/10
Tags:
family:kaiji defense_evasion discovery persistence privilege_escalation
Behaviour
GoLang User-Agent
Enumerates kernel/hardware configuration
Reads runtime system information
System Network Configuration Discovery
Reads CPU attributes
Enumerates running processes
Modifies init.d
Modifies systemd
Executes dropped EXE
Modifies Watchdog functionality
Verdict:
Malicious
Tags:
trojan kaiji chaos Unix.Malware.Kaiji-10002376-0
YARA:
ELF_Kaiji_Chaos_April_2024
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kaiji
Score:
0.90
YARA Signatures
MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.
| Rule name: | DetectGoMethodSignatures |
|---|---|
| Author: | Wyatt Tauber |
| Description: | Detects Go method signatures in unpacked Go binaries |
| Rule name: | enterpriseapps2 |
|---|---|
| Author: | Tim Brown @timb_machine |
| Description: | Enterprise apps |
| Rule name: | enterpriseunix2 |
|---|---|
| Author: | Tim Brown @timb_machine |
| Description: | Enterprise UNIX |
| Rule name: | F01_s1ckrule |
|---|---|
| Author: | s1ckb017 |
| Rule name: | GoBinTest |
|---|
| Rule name: | golang |
|---|
| Rule name: | golang_binary_string |
|---|---|
| Description: | Golang strings present |
| Rule name: | identity_golang |
|---|---|
| Author: | Eric Yocam |
| Description: | find Golang malware |
| Rule name: | Linux_Generic_Threat_a40aaa96 |
|---|---|
| Author: | Elastic Security |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | RANSOMWARE |
|---|---|
| Author: | ToroGuitar |
| Rule name: | setsockopt |
|---|---|
| Author: | Tim Brown @timb_machine |
| Description: | Hunts for setsockopt() red flags |
| Rule name: | SHA512_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA384/SHA512 constants |
| Rule name: | unixredflags3 |
|---|---|
| Author: | Tim Brown @timb_machine |
| Description: | Hunts for UNIX red flags |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
BLint
The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.
Findings
| ID | Title | Severity |
|---|---|---|
| CHECK_PIE | Missing Position-Independent Executable (PIE) Protection | high |
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