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Analysis Report HealthService.exe

Overview

General Information

Sample Name:	HealthService.exe
Analysis ID:	402486
MD5:	367ce58d39d978524559d0805192e8d7
SHA1:	d7e37b78d56d8b504016c32934ac15dd2d9f6176
SHA256:	1eaec2e5990f4694bdf4d228ac3543caba79ae38952f5ff504517304f9e1e9f2
Infos:
Most interesting Screenshot:

Detection

Score:	1
Range:	0 - 100
Whitelisted:	false
Confidence:	60%

Signatures

Program does not show much activity (idle)

Tries to load missing DLLs

Classification

Analysis Advice

Sample is a service DLL but no service has been registered

Sample tries to load a library which is not present or installed on the analysis machine, adding the library might reveal more behavior

Startup

System is w10x64

HealthService.exe (PID: 6952 cmdline: 'C:\Users\user\Desktop\HealthService.exe' MD5: 367CE58D39D978524559D0805192E8D7)

cleanup

Malware Configuration

No configs have been found

Yara Overview

No yara matches

Sigma Overview

No Sigma rule has matched

Signature Overview

Click to jump to signature section

Show All Signature Results

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

Source: HealthService.exe

Static PE information: certificate valid

Source: HealthService.exe

Static PE information: TERMINAL_SERVER_AWARE, DYNAMIC_BASE, NX_COMPAT, HIGH_ENTROPY_VA

Source:	Binary string: HealthService.pdb source: HealthService.exe
Source:	Binary string: HealthService.pdb11H source: HealthService.exe

Source: C:\Users\user\Desktop\HealthService.exe	Section loaded: healthservice.dll
Source: C:\Users\user\Desktop\HealthService.exe	Section loaded: healthserviceruntime.dll

Source: classification engine

Classification label: clean1.winEXE@1/0@0/0

Source: C:\Users\user\Desktop\HealthService.exe

Code function: 0_2_00007FF7D5876070 StartServiceCtrlDispatcherW,RegQueryValueExW,RegCloseKey,

Source: C:\Users\user\Desktop\HealthService.exe	Code function: 0_2_00007FF7D5876070 StartServiceCtrlDispatcherW,RegQueryValueExW,RegCloseKey,
Source: C:\Users\user\Desktop\HealthService.exe	Code function: 0_2_00007FF7D5871700 CoUninitialize,UnregisterTraceGuids,HealthServiceMain,StartServiceCtrlDispatcherW,GetLastError,CoUninitialize,UnregisterTraceGuids,

Source: HealthService.exe

Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ

Source: C:\Users\user\Desktop\HealthService.exe

Key opened: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers

Source: HealthService.exe

Static PE information: certificate valid

Source: initial sample

Static PE information: Valid certificate with Microsoft Issuer

Source: HealthService.exe

Static PE information: Image base 0x140000000 > 0x60000000

Source: HealthService.exe	Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_IMPORT
Source: HealthService.exe	Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_RESOURCE
Source: HealthService.exe	Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_BASERELOC
Source: HealthService.exe	Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG
Source: HealthService.exe	Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG
Source: HealthService.exe	Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_IAT

Source: HealthService.exe

Static PE information: TERMINAL_SERVER_AWARE, DYNAMIC_BASE, NX_COMPAT, HIGH_ENTROPY_VA

Source: HealthService.exe

Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG

Source:	Binary string: HealthService.pdb source: HealthService.exe
Source:	Binary string: HealthService.pdb11H source: HealthService.exe

Source: C:\Users\user\Desktop\HealthService.exe

Code function: 0_2_00007FF7D5876070 StartServiceCtrlDispatcherW,RegQueryValueExW,RegCloseKey,

Source: all processes

Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected

Source: C:\Users\user\Desktop\HealthService.exe

Code function: 0_2_00007FF7D5872A40 GetSystemInfo,

Source: all processes

Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected

Source: C:\Users\user\Desktop\HealthService.exe

Code function: 0_2_00007FF7D5871B3C InitializeSecurityDescriptor,GetLastError,CreateWellKnownSid,GetLastError,SetEntriesInAclW,SetSecurityDescriptorDacl,GetLastError,GetCurrentProcess,OpenProcessToken,GetLastError,GetTokenInformation,GetLastError,GetTokenInformation,GetLastError,SetSecurityDescriptorOwner,GetLastError,SetSecurityDescriptorGroup,GetLastError,CoInitializeSecurity,LocalFree,CloseHandle,

Source: C:\Users\user\Desktop\HealthService.exe

Code function: 0_2_00007FF7D5872FA4 GetSystemTimeAsFileTime,GetCurrentThreadId,GetCurrentProcessId,QueryPerformanceCounter,

Mitre Att&ck Matrix

Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Exfiltration	Command and Control	Network Effects	Remote Service Effects	Impact
Valid Accounts	Service Execution2	Windows Service3	Windows Service3	DLL Side-Loading1	OS Credential Dumping	System Time Discovery1	Remote Services	Data from Local System	Exfiltration Over Other Network Medium	Data Obfuscation	Eavesdrop on Insecure Network Communication	Remotely Track Device Without Authorization	Modify System Partition
Default Accounts	Scheduled Task/Job	DLL Side-Loading1	DLL Side-Loading1	Rootkit	LSASS Memory	System Information Discovery3	Remote Desktop Protocol	Data from Removable Media	Exfiltration Over Bluetooth	Junk Data	Exploit SS7 to Redirect Phone Calls/SMS	Remotely Wipe Data Without Authorization	Device Lockout

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Is Windows Process
Number of created Registry Values
Number of created Files
Visual Basic
Delphi
Java
.Net C# or VB.NET
C, C++ or other language
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

Source	Detection	Scanner	Link
HealthService.exe	0%	Virustotal	Browse
HealthService.exe	0%	Metadefender	Browse
HealthService.exe	0%	ReversingLabs

Dropped Files

No Antivirus matches

Unpacked PE Files

No Antivirus matches

Domains

No Antivirus matches

URLs

No Antivirus matches

Domains and IPs

Contacted Domains

No contacted domains info

Contacted IPs

No contacted IP infos

General Information

Joe Sandbox Version:	32.0.0 Black Diamond
Analysis ID:	402486
Start date:	03.05.2021
Start time:	08:24:03
Joe Sandbox Product:	CloudBasic
Overall analysis duration:	0h 2m 27s
Hypervisor based Inspection enabled:	false
Report type:	light
Sample file name:	HealthService.exe
Cookbook file name:	default.jbs
Analysis system description:	Windows 10 64 bit v1803 with Office Professional Plus 2016, Chrome 85, IE 11, Adobe Reader DC 19, Java 8 Update 211
Number of analysed new started processes analysed:	5
Number of new started drivers analysed:	0
Number of existing processes analysed:	0
Number of existing drivers analysed:	0
Number of injected processes analysed:	0
Technologies:	HCA enabled EGA enabled HDC enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Detection:	CLEAN
Classification:	clean1.winEXE@1/0@0/0
EGA Information:	Failed
HDC Information:	Successful, ratio: 75.4% (good quality ratio 36.8%) Quality average: 33.9% Quality standard deviation: 40%
HCA Information:	Successful, ratio: 100% Number of executed functions: 0 Number of non-executed functions: 0
Cookbook Comments:	Adjust boot time Enable AMSI Found application associated with file extension: .exe Stop behavior analysis, all processes terminated
Warnings:	Show All Execution Graph export aborted for target HealthService.exe, PID 6952 because there are no executed function

Simulations

Behavior and APIs

No simulations

Joe Sandbox View / Context

IPs

No context

Domains

No context

ASN

No context

JA3 Fingerprints

No context

Dropped Files

No context

Created / dropped Files

No created / dropped files found

Static File Info

General
File type:	PE32+ executable (GUI) x86-64, for MS Windows
Entropy (8bit):	6.269755445996399
TrID:	Win64 Executable GUI (202006/5) 92.65% Win64 Executable (generic) (12005/4) 5.51% Generic Win/DOS Executable (2004/3) 0.92% DOS Executable Generic (2002/1) 0.92% Autodesk FLIC Image File (extensions: flc, fli, cel) (7/3) 0.00%
File name:	HealthService.exe
File size:	27048
MD5:	367ce58d39d978524559d0805192e8d7
SHA1:	d7e37b78d56d8b504016c32934ac15dd2d9f6176
SHA256:	1eaec2e5990f4694bdf4d228ac3543caba79ae38952f5ff504517304f9e1e9f2
SHA512:	b44feecabd84cd785205c3850eb6f9e31726770563e6182a1bb8e9e3312a57c20c8ab2c5c8dbf2608435cf91651af194e596d2f30aaca9a84ea2204c7fc7703b
SSDEEP:	384:26ACH80K1MsWuQUKXzFp2zu0vJ7nyPmOgWf/uOWzdHRN77xJXlGshI:2zOU+p21nHZR7LE1
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......F.i=...n...n...n...n...nD..n...nD..n...nD..n...nD..n...n...n...n...n...n...n...n...n...n...n...nRich...n........PE..d......_...

File Icon


Icon Hash:	00828e8e8686b000

Static PE Info

General
Entrypoint:	0x140002dec
Entrypoint Section:	.text
Digitally signed:	true
Imagebase:	0x140000000
Subsystem:	windows gui
Image File Characteristics:	EXECUTABLE_IMAGE, LARGE_ADDRESS_AWARE
DLL Characteristics:	TERMINAL_SERVER_AWARE, DYNAMIC_BASE, NX_COMPAT, HIGH_ENTROPY_VA
Time Stamp:	0x5F8BACCE [Sun Oct 18 02:47:42 2020 UTC]
TLS Callbacks:
CLR (.Net) Version:
OS Version Major:	6
OS Version Minor:	0
File Version Major:	6
File Version Minor:	0
Subsystem Version Major:	6
Subsystem Version Minor:	0
Import Hash:	0ba5fcb0a2a5e8cff9c7b1ae3cde3769

Authenticode Signature

Signature Valid:	true
Signature Issuer:	CN=Microsoft Code Signing PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US
Signature Validation Error:	The operation completed successfully
Error Number:	0
Not Before, Not After	3/4/2020 7:39:47 PM 3/3/2021 7:39:47 PM
Subject Chain	CN=Microsoft Corporation, O=Microsoft Corporation, L=Redmond, S=Washington, C=US
Version:	3
Thumbprint MD5:	AAEE394B1087AC1044A13D09468CDF1E
Thumbprint SHA-1:	2485A7AFA98E178CB8F30C9838346B514AEA4769
Thumbprint SHA-256:	C0772D3C9E20C3F4EBB09F5816D6DADA0D8FA86563C2D68898539EC1CD355A1B
Serial:	3300000187721772155940C709000000000187

Entrypoint Preview

Instruction
dec eax
sub esp, 28h
call 00007F2C14902774h
dec eax
add esp, 28h
jmp 00007F2C149023B3h
int3
int3
int3
int3
int3
int3
int3
int3
nop word ptr [eax+eax+00000000h]
dec eax
cmp ecx, dword ptr [000011F9h]
jne 00007F2C149025D3h
dec eax
rol ecx, 10h
test cx, FFFFh
jne 00007F2C149025C4h
rep ret
dec eax
ror ecx, 10h
jmp 00007F2C14902A0Eh
int3
int3
int3
int3
int3
int3
int3
int3
int3
dec eax
sub esp, 28h
dec eax
mov eax, dword ptr [ecx]
cmp dword ptr [eax], E06D7363h
jne 00007F2C149025DEh
cmp dword ptr [eax+18h], 04h
jne 00007F2C149025D8h
mov ecx, dword ptr [eax+20h]
lea eax, dword ptr [ecx-19930520h]
cmp eax, 02h
jbe 00007F2C149025D1h
cmp ecx, 01994000h
je 00007F2C149025C9h
xor eax, eax
dec eax
add esp, 28h
ret
call 00007F2C14902AA6h
int3
int3
int3
int3
int3
int3
int3
int3
int3
dec eax
sub esp, 28h
dec eax
lea ecx, dword ptr [FFFFFFB5h]
call 00007F2C14902A99h
xor eax, eax
dec eax
add esp, 28h
ret
int3
int3
int3
int3
int3
int3
int3
jmp dword ptr [0000338Ch]
int3
int3
int3
int3
int3
int3
jmp dword ptr [00003370h]
int3
int3
int3
int3
int3
int3
int3
int3
xor eax, eax
ret

Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IMPORT	0x6268	0xa0	.idata
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x7000	0x760	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x5000	0x1bc	.pdata
IMAGE_DIRECTORY_ENTRY_SECURITY	0x4600	0x23a8
IMAGE_DIRECTORY_ENTRY_BASERELOC	0x8000	0x2c	.reloc
IMAGE_DIRECTORY_ENTRY_DEBUG	0x1040	0x38	.text
IMAGE_DIRECTORY_ENTRY_COPYRIGHT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_GLOBALPTR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_TLS	0x0	0x0
IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG	0x14b0	0x70	.text
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IAT	0x6000	0x268	.idata
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_RESERVED	0x0	0x0

Sections

Name	Virtual Address	Virtual Size	Raw Size	Xored PE	ZLIB Complexity	File Type	Entropy	Characteristics
.text	0x1000	0x2698	0x2800	False	0.55654296875	data	5.89204632443	IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
.data	0x4000	0x688	0x200	False	0.09375	data	0.501447008098	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_WRITE, IMAGE_SCN_MEM_READ
.pdata	0x5000	0x1bc	0x200	False	0.548828125	data	3.52123880887	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.idata	0x6000	0xb32	0xc00	False	0.368489583333	data	4.09000092762	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.rsrc	0x7000	0x760	0x800	False	0.40478515625	data	4.0477508662	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.reloc	0x8000	0x2c	0x200	False	0.109375	data	0.52660705461	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	Language	Country
RT_VERSION	0x7308	0x454	data	English	United States
RT_MANIFEST	0x70a0	0x268	XML 1.0 document, ASCII text, with CRLF line terminators	English	United States

Imports

DLL	Import
ADVAPI32.dll	TraceMessage, GetTraceLoggerHandle, GetTraceEnableLevel, GetTraceEnableFlags, RegisterTraceGuidsW, UnregisterTraceGuids, InitializeSecurityDescriptor, CreateWellKnownSid, SetEntriesInAclW, SetSecurityDescriptorDacl, OpenProcessToken, GetTokenInformation, SetSecurityDescriptorOwner, SetSecurityDescriptorGroup, StartServiceCtrlDispatcherW, RegOpenKeyExW, RegQueryValueExW, RegCloseKey
KERNEL32.dll	GetSystemInfo, CreateProcessW, CloseHandle, LocalFree, GetCurrentProcess, GetLastError, SetErrorMode, EncodePointer, QueryPerformanceCounter, GetCurrentProcessId, GetCurrentThreadId, GetSystemTimeAsFileTime, DecodePointer, IsDebuggerPresent, IsProcessorFeaturePresent, SetPriorityClass, InitializeCriticalSectionAndSpinCount
MSVCR120.dll	_exit, memset, __crtCapturePreviousContext, __crtTerminateProcess, __crtUnhandledException, __crt_debugger_hook, _onexit, __dllonexit, _calloc_crt, _unlock, _lock, __crtSetUnhandledExceptionFilter, ?terminate@@YAXXZ, _commode, _fmode, _wcmdln, __C_specific_handler, _initterm, _initterm_e, __setusermatherr, _configthreadlocale, _cexit, exit, __set_app_type, __wgetmainargs, _amsg_exit, __crtGetShowWindowMode, _XcptFilter
ole32.dll	CoInitializeEx, CoUninitialize, CoInitializeSecurity
OLEAUT32.dll	SetOaNoCache
HealthService.dll	HealthServiceMain
HealthServiceRuntime.dll	InitializeProcessSecurity, DisableCOMExceptionHandling

Version Infos

Description	Data
LegalCopyright	Copyright Microsoft Corp.
InternalName	HealthService.exe
FileVersion	10.20.18053.0
CompanyName	Microsoft Corp.
PrivateBuild	Built by cdmbld on CDMBLDAZ023.
LegalTrademarks	Microsoft is a registered trademark of Microsoft Corporation.
ProductName	Microsoft Monitoring Agent
ProductVersion	10.20.18053.0
FileDescription	Microsoft Monitoring Agent Service
OriginalFilename	HealthService.exe
Translation	0x0409 0x04b0

Possible Origin

Language of compilation system	Country where language is spoken	Map
English	United States

Network Behavior

No network behavior found

Code Manipulations

Statistics

System Behavior

Analysis Process: HealthService.exe PID: 6952 Parent PID: 5880

General

Start time:	08:24:54
Start date:	03/05/2021
Path:	C:\Users\user\Desktop\HealthService.exe
Wow64 process (32bit):	false
Commandline:	'C:\Users\user\Desktop\HealthService.exe'
Imagebase:	0x7ff7d5870000
File size:	27048 bytes
MD5 hash:	367CE58D39D978524559D0805192E8D7
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	low

Disassembly

Code Analysis

Description:	Adversaries may abuse the Windows service control manager to execute malicious commands or payloads. The Windows service control manager ( `services.exe` ) is an interface to manage and manipulate services.The service control manager is accessible to users via GUI components as well as system utilities such as `sc.exe` and Net .
Tactics:	Execution
Data Sources:	Process command-line parameters, Process monitoring, Windows Registry
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may create or modify Windows services to repeatedly execute malicious payloads as part of persistence. When Windows boots up, it starts programs or applications called services that perform background system functions.Windows service configuration information, including the file path to the service's executable or recovery programs/commands, is stored in the Windows Registry. Service configurations can be modified using utilities such as sc.exe and Reg .
Tactics:	Persistence, Privilege Escalation
Data Sources:	API monitoring, File monitoring, Process command-line parameters, Process monitoring, Windows Registry, Windows event logs
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may execute their own malicious payloads by hijacking the library manifest used to load DLLs. Adversaries may take advantage of vague references in the library manifest of a program by replacing a legitimate library with a malicious one, causing the operating system to load their malicious library when it is called for by the victim program.
Tactics:	Defense Evasion, Persistence, Privilege Escalation
Data Sources:	Loaded DLLs, Process monitoring, Process use of network
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	An adversary may gather the system time and/or time zone from a local or remote system. The system time is set and stored by the Windows Time Service within a domain to maintain time synchronization between systems and services in an enterprise network.
Tactics:	Discovery
Data Sources:	API monitoring, Process command-line parameters, Process monitoring
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	AWS CloudTrail logs, Azure activity logs, Process command-line parameters, Process monitoring, Stackdriver logs
Platforms:	AWS, Azure, GCP, Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Warning!

Analysis Report HealthService.exe

Overview

General Information

Detection

Signatures

Classification

Analysis Advice

Startup

Malware Configuration

Yara Overview

Sigma Overview

Signature Overview

Compliance:

System Summary:

Boot Survival:

Malware Analysis System Evasion:

Anti Debugging:

HIPS / PFW / Operating System Protection Evasion:

Language, Device and Operating System Detection:

Mitre Att&ck Matrix

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Unpacked PE Files

Domains

URLs

Domains and IPs

Contacted Domains

Contacted IPs

General Information

Simulations

Behavior and APIs

Joe Sandbox View / Context

IPs

Domains

ASN

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

File Icon

Static PE Info

General

Authenticode Signature

Entrypoint Preview

Data Directories

Sections

Resources

Imports

Version Infos

Possible Origin

Network Behavior

Code Manipulations

Statistics

System Behavior

Analysis Process: HealthService.exe PID: 6952 Parent PID: 5880

General

Disassembly

Code Analysis