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Linux Analysis Report gsf3z44v5s
Overview
General Information
Sample Name: | gsf3z44v5s |
Analysis ID: | 553488 |
MD5: | 5502094e79b489ff942ebe314f34a34a |
SHA1: | 3faad8451da16e6ee0f003b9d0070710f42a1b90 |
SHA256: | 6f5ddee695a158e5028c3105754df18a00182db560288f37279da6143de73b84 |
Tags: | 32armelfmirai |
Infos: |
Detection
Score: | 52 |
Range: | 0 - 100 |
Whitelisted: | false |
Signatures
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Sample contains only a LOAD segment without any section mappings
Uses the "uname" system call to query kernel version information (possible evasion)
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Executes the "rm" command used to delete files or directories
Classification
Analysis Advice |
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Static ELF header machine description suggests that the sample might only run correctly on MIPS or ARM architectures |
All HTTP servers contacted by the sample do not answer. Likely the sample is an old dropper which does no longer work |
Non-zero exit code suggests an error during the execution. Lookup the error code for hints. |
Static ELF header machine description suggests that the sample might not execute correctly on this machine |
General Information |
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Joe Sandbox Version: | 34.0.0 Boulder Opal |
Analysis ID: | 553488 |
Start date: | 15.01.2022 |
Start time: | 01:18:21 |
Joe Sandbox Product: | CloudBasic |
Overall analysis duration: | 0h 4m 51s |
Hypervisor based Inspection enabled: | false |
Report type: | full |
Sample file name: | gsf3z44v5s |
Cookbook file name: | defaultlinuxfilecookbook.jbs |
Analysis system description: | Ubuntu Linux 20.04 x64 (Kernel 5.4.0-72, Firefox 91.0, Evince Document Viewer 3.36.10, LibreOffice 6.4.7.2, OpenJDK 11.0.11) |
Analysis Mode: | default |
Detection: | MAL |
Classification: | mal52.evad.lin@0/0@0/0 |
Process Tree |
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Yara Overview |
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No yara matches |
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Jbx Signature Overview |
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Click to jump to signature section
Show All Signature Results
AV Detection: |
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Multi AV Scanner detection for submitted file | Show sources |
Source: | Virustotal: | Perma Link | ||
Source: | ReversingLabs: |
Source: | TCP traffic: | ||
Source: | TCP traffic: | ||
Source: | TCP traffic: | ||
Source: | TCP traffic: |
Source: | Network traffic detected: | ||
Source: | Network traffic detected: | ||
Source: | Network traffic detected: |
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: |
Source: | String found in binary or memory: |
Source: | Program segment: |
Source: | Classification label: |
Data Obfuscation: |
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Sample is packed with UPX | Show sources |
Source: | String containing UPX found: | ||
Source: | String containing UPX found: | ||
Source: | String containing UPX found: |
Source: | Rm executable: | Jump to behavior |
Source: | Queries kernel information via 'uname': | Jump to behavior |
Source: | Binary or memory string: | ||
Source: | Binary or memory string: | ||
Source: | Binary or memory string: | ||
Source: | Binary or memory string: |
Mitre Att&ck Matrix |
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Initial Access | Execution | Persistence | Privilege Escalation | Defense Evasion | Credential Access | Discovery | Lateral Movement | Collection | Exfiltration | Command and Control | Network Effects | Remote Service Effects | Impact |
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Valid Accounts | Windows Management Instrumentation | Path Interception | Path Interception | Obfuscated Files or Information1 | OS Credential Dumping | Security Software Discovery11 | Remote Services | Data from Local System | Exfiltration Over Other Network Medium | Encrypted Channel1 | Eavesdrop on Insecure Network Communication | Remotely Track Device Without Authorization | Modify System Partition |
Default Accounts | Scheduled Task/Job | Boot or Logon Initialization Scripts | Boot or Logon Initialization Scripts | File Deletion1 | LSASS Memory | Application Window Discovery | Remote Desktop Protocol | Data from Removable Media | Exfiltration Over Bluetooth | Application Layer Protocol1 | Exploit SS7 to Redirect Phone Calls/SMS | Remotely Wipe Data Without Authorization | Device Lockout |
Malware Configuration |
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No configs have been found |
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Behavior Graph |
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Antivirus, Machine Learning and Genetic Malware Detection |
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Initial Sample |
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Source | Detection | Scanner | Label | Link |
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22% | Virustotal | Browse | ||
37% | ReversingLabs | Linux.Trojan.Mirai |
Dropped Files |
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No Antivirus matches |
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Domains |
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No Antivirus matches |
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URLs |
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No Antivirus matches |
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Domains and IPs |
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Contacted Domains |
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No contacted domains info |
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URLs from Memory and Binaries |
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Name | Source | Malicious | Antivirus Detection | Reputation |
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false | high |
Contacted IPs |
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- No. of IPs < 25%
- 25% < No. of IPs < 50%
- 50% < No. of IPs < 75%
- 75% < No. of IPs
Public |
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IP | Domain | Country | Flag | ASN | ASN Name | Malicious |
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183.5.95.66 | unknown | China | 4134 | CHINANET-BACKBONENo31Jin-rongStreetCN | false | |
34.249.145.219 | unknown | United States | 16509 | AMAZON-02US | false | |
177.207.193.26 | unknown | Brazil | 18881 | TELEFONICABRASILSABR | false | |
124.19.84.128 | unknown | Australia | 7474 | OPTUSCOM-AS01-AUSingTelOptusPtyLtdAU | false | |
121.15.190.47 | unknown | China | 58466 | CT-GUANGZHOU-IDCCHINANETGuangdongprovincenetworkCN | false | |
109.202.202.202 | unknown | Switzerland | 13030 | INIT7CH | false | |
91.189.91.43 | unknown | United Kingdom | 41231 | CANONICAL-ASGB | false | |
91.189.91.42 | unknown | United Kingdom | 41231 | CANONICAL-ASGB | false |
Runtime Messages |
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Command: | /tmp/gsf3z44v5s |
Exit Code: | 127 |
Exit Code Info: | |
Killed: | False |
Standard Output: | |
Standard Error: |
Joe Sandbox View / Context |
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IPs |
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Match | Associated Sample Name / URL | SHA 256 | Detection | Link | Context |
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34.249.145.219 | Get hash | malicious | Browse | ||
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109.202.202.202 | Get hash | malicious | Browse | ||
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Get hash | malicious | Browse |
Domains |
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No context |
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ASN |
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Match | Associated Sample Name / URL | SHA 256 | Detection | Link | Context |
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CHINANET-BACKBONENo31Jin-rongStreetCN | Get hash | malicious | Browse |
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Get hash | malicious | Browse |
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Get hash | malicious | Browse |
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Get hash | malicious | Browse |
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Get hash | malicious | Browse |
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Get hash | malicious | Browse |
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AMAZON-02US | Get hash | malicious | Browse |
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Get hash | malicious | Browse |
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Get hash | malicious | Browse |
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Get hash | malicious | Browse |
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Get hash | malicious | Browse |
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Get hash | malicious | Browse |
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JA3 Fingerprints |
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No context |
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Dropped Files |
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No context |
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Created / dropped Files |
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No created / dropped files found |
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Static File Info |
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General | |
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File type: | |
Entropy (8bit): | 7.915655038267032 |
TrID: |
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File name: | gsf3z44v5s |
File size: | 22124 |
MD5: | 5502094e79b489ff942ebe314f34a34a |
SHA1: | 3faad8451da16e6ee0f003b9d0070710f42a1b90 |
SHA256: | 6f5ddee695a158e5028c3105754df18a00182db560288f37279da6143de73b84 |
SHA512: | bf80e4710e25abacde5eb845057ac89c900afa901dab74c5ac4523c3985b798db7d4b0c63b85d47b6608c6bb0eb07bf2ffe07e9ade057770a7c312ecf31dd166 |
SSDEEP: | 384:pUOI4RRYaPzxj1WBxhsqAWPIizpZ5DFILLFiM1f4ybVeR80cU7SmkohymdGUop5v:pUOIMRY+zxYba9OJDFILoMZEC0qros3l |
File Content Preview: | .ELF...a..........(.....H...4...........4. ...(......................T...T...............?..........................Q.td..............................CvUPX!........\...\.......q..........?.E.h;.}...^.......+P.f.k.@......}6N.h.......X...|.?..E(...p....i..] |
Static ELF Info |
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ELF header | |
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Class: | |
Data: | |
Version: | |
Machine: | |
Version Number: | |
Type: | |
OS/ABI: | |
ABI Version: | |
Entry Point Address: | |
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ELF Header Size: | |
Program Header Offset: | |
Program Header Size: | |
Number of Program Headers: | |
Section Header Offset: | |
Section Header Size: | |
Number of Section Headers: | |
Header String Table Index: |
Program Segments |
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Type | Offset | Virtual Address | Physical Address | File Size | Memory Size | Entropy | Flags | Flags Description | Align | Prog Interpreter | Section Mappings |
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LOAD | 0x0 | 0x8000 | 0x8000 | 0x54f7 | 0x54f7 | 4.0623 | 0x5 | R E | 0x8000 | ||
LOAD | 0x3fb4 | 0x1bfb4 | 0x1bfb4 | 0x0 | 0x0 | 0.0000 | 0x6 | RW | 0x8000 | ||
GNU_STACK | 0x0 | 0x0 | 0x0 | 0x0 | 0x0 | 0.0000 | 0x7 | RWE | 0x4 |
Network Behavior |
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Network Port Distribution |
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TCP Packets |
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Timestamp | Source Port | Dest Port | Source IP | Dest IP |
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Jan 15, 2022 01:19:06.169576883 CET | 42836 | 443 | 192.168.2.23 | 91.189.91.43 |
Jan 15, 2022 01:19:06.681582928 CET | 42516 | 80 | 192.168.2.23 | 109.202.202.202 |
Jan 15, 2022 01:19:09.990690947 CET | 23 | 51944 | 124.19.84.128 | 192.168.2.23 |
Jan 15, 2022 01:19:09.990761042 CET | 23 | 51944 | 124.19.84.128 | 192.168.2.23 |
Jan 15, 2022 01:19:09.990928888 CET | 51944 | 23 | 192.168.2.23 | 124.19.84.128 |
Jan 15, 2022 01:19:09.990987062 CET | 51944 | 23 | 192.168.2.23 | 124.19.84.128 |
Jan 15, 2022 01:19:19.808527946 CET | 23 | 48578 | 177.207.193.26 | 192.168.2.23 |
Jan 15, 2022 01:19:19.808722973 CET | 48578 | 23 | 192.168.2.23 | 177.207.193.26 |
Jan 15, 2022 01:19:20.761075974 CET | 43928 | 443 | 192.168.2.23 | 91.189.91.42 |
Jan 15, 2022 01:19:28.375427008 CET | 39242 | 443 | 192.168.2.23 | 34.249.145.219 |
Jan 15, 2022 01:19:29.400588989 CET | 39242 | 443 | 192.168.2.23 | 34.249.145.219 |
Jan 15, 2022 01:19:31.416528940 CET | 39242 | 443 | 192.168.2.23 | 34.249.145.219 |
Jan 15, 2022 01:19:33.048413992 CET | 42836 | 443 | 192.168.2.23 | 91.189.91.43 |
Jan 15, 2022 01:19:35.608330011 CET | 39242 | 443 | 192.168.2.23 | 34.249.145.219 |
Jan 15, 2022 01:19:37.144268036 CET | 42516 | 80 | 192.168.2.23 | 109.202.202.202 |
Jan 15, 2022 01:19:43.799897909 CET | 39242 | 443 | 192.168.2.23 | 34.249.145.219 |
Jan 15, 2022 01:19:59.927233934 CET | 39242 | 443 | 192.168.2.23 | 34.249.145.219 |
Jan 15, 2022 01:20:01.719192028 CET | 43928 | 443 | 192.168.2.23 | 91.189.91.42 |
Jan 15, 2022 01:20:06.878777981 CET | 23 | 58932 | 121.15.190.47 | 192.168.2.23 |
Jan 15, 2022 01:20:06.878971100 CET | 58932 | 23 | 192.168.2.23 | 121.15.190.47 |
Jan 15, 2022 01:20:17.953002930 CET | 23 | 37974 | 183.5.95.66 | 192.168.2.23 |
Jan 15, 2022 01:20:17.953170061 CET | 37974 | 23 | 192.168.2.23 | 183.5.95.66 |
System Behavior |
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General |
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Start time: | 01:19:03 |
Start date: | 15/01/2022 |
Path: | /tmp/gsf3z44v5s |
Arguments: | /tmp/gsf3z44v5s |
File size: | 4956856 bytes |
MD5 hash: | 5ebfcae4fe2471fcc5695c2394773ff1 |
General |
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Start time: | 01:20:27 |
Start date: | 15/01/2022 |
Path: | /usr/bin/dash |
Arguments: | n/a |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
General |
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Start time: | 01:20:27 |
Start date: | 15/01/2022 |
Path: | /usr/bin/rm |
Arguments: | rm -f /tmp/tmp.gnhgFAvsJy /tmp/tmp.t3qRXe8EQV /tmp/tmp.wpv1yxnV4b |
File size: | 72056 bytes |
MD5 hash: | aa2b5496fdbfd88e38791ab81f90b95b |