MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4ddefa7635a60e03ff39678587427cc09f810a65b1c33e1d065174fbf98042ef. 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
Threat unknown
Vendor detections: 9
| SHA256 hash: | 4ddefa7635a60e03ff39678587427cc09f810a65b1c33e1d065174fbf98042ef |
|---|---|
| SHA3-384 hash: | 72ae5d0956875cca97e9abdbd2262c215fafb544e1382d636737eed027ddbf80e8e65ef1772e3e8faefe266f23103200 |
| SHA1 hash: | 177db5523faa16ea4eebcbcf05ed74c22d7d9772 |
| MD5 hash: | 9690c731f827a245e9d7773bca8a49ae |
| humanhash: | maine-high-cardinal-aspen |
| File name: | linux_386 |
| Download: | download sample |
| File size: | 1'743'360 bytes |
| First seen: | 2026-03-20 06:52:58 UTC |
| Last seen: | 2026-03-20 07:28:48 UTC |
| File type: | elf |
| MIME type: | application/x-executable |
| ssdeep | 49152:ITF6X8DXTpS5GJGPjqJ7G6cVbzaUm0BNmbJS9KXrH0jEO:ITFi8jkoJIeWbWUvy+KXrUjEO |
| TLSH | T14D8533C926D1D8710C105B05B34EF7EC8E89A02FF1B0B56954CB53AD913F63BA6A99F0 |
| 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 UPX |
UPX packed
This file is packed with UPX. We have therefore unpacked the file. Below is furhter information about the unpacked (de-compressed) file.
| File size (compressed) : | 1'743'360 bytes |
|---|---|
| File size (de-compressed) : | 4'313'088 bytes |
| Format: | linux/i386 |
| Unpacked file: | c8f3b84814fe469e2d551c141b37bf74e350bfeafb31a530d2582788cc445789 |
Intelligence
File Origin
# of uploads :
2
# of downloads :
80
Origin country :
DEVendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:
Behaviour
Runs as daemon
Manages services
Launching a process
Creating a process from a recently created file
Creating a file
Changes the time when the file was created, accessed, or modified
Creating a file in the %temp% directory
Deleting a recently created file
Writes files to system directory
Deletes a system binary file
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Gathering data
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
1
Number of processes launched:
4
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
Verdict:
Unknown
File Type:
elf.32.le
Status:
terminated
Behavior Graph:
Verdict:
Unknown
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
88 / 100
Signature
Drops files in suspicious directories
Drops invisible ELF files
Executes the "crontab" command typically for achieving persistence
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Writes ELF files to hidden directories
Writes identical ELF files to multiple locations
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
ELF
Threat name:
Linux.Trojan.Generic
Status:
Suspicious
First seen:
2026-03-20 06:53:27 UTC
File Type:
ELF32 Little (Exe)
AV detection:
10 of 38 (26.32%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
6/10
Tags:
defense_evasion discovery linux persistence privilege_escalation upx
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
Writes file to tmp directory
Modifies Bash startup script
UPX packed file
Creates/modifies environment variables
Modifies init.d
Modifies rc script
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.84
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: | CP_Script_Inject_Detector |
|---|---|
| Author: | DiegoAnalytics |
| Description: | Detects attempts to inject code into another process across PE, ELF, Mach-O binaries |
| Rule name: | GoBinTest |
|---|
| Rule name: | golang_binary_string |
|---|---|
| Description: | Golang strings present |
| Rule name: | MD5_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for MD5 constants |
| Rule name: | ProgramLanguage_Golang |
|---|---|
| Author: | albertzsigovits |
| Description: | Application written in Golang programming language |
| Rule name: | RIPEMD160_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for RIPEMD-160 constants |
| Rule name: | SHA1_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA1 constants |
| Rule name: | SUSP_ELF_LNX_UPX_Compressed_File |
|---|---|
| Author: | Florian Roth (Nextron Systems) |
| Description: | Detects a suspicious ELF binary with UPX compression |
| Reference: | Internal Research |
| Rule name: | TH_Generic_MassHunt_Linux_Malware_2026_CYFARE |
|---|---|
| Author: | CYFARE |
| Description: | Generic Linux malware mass-hunt rule - 2026 |
| Reference: | https://cyfare.net/ |
| Rule name: | UPXProtectorv10x2 |
|---|---|
| Author: | malware-lu |
| Rule name: | upx_packed_elf_v1 |
|---|---|
| Author: | RandomMalware |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
elf 4ddefa7635a60e03ff39678587427cc09f810a65b1c33e1d065174fbf98042ef
(this sample)
Delivery method
Distributed via web download
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