MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 58514fa7288607858aae17799ded4bb96d5f9b78733ad1ca2cece597d5516d44. 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


ServHelper


Vendor detections: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 58514fa7288607858aae17799ded4bb96d5f9b78733ad1ca2cece597d5516d44
SHA3-384 hash: 8278f9896dffcc33132e459d9848ec2e241bf79c66cff6a2a8d4eb4f5e25b4c936621806c396a686bf0c54fb4eb70b88
SHA1 hash: f8fa401cad5cddbfe14a489402ebf396e9c19cf5
MD5 hash: af6bd8f141651c4f330bf5e5c0c16926
humanhash: sodium-six-march-carbon
File name:SecuriteInfo.com.Variant.Bulz.386265.8401.2648
Download: download sample
Signature ServHelper
Create hunting rule
File size:6'342'144 bytes
First seen:2021-03-27 13:31:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 4035d2883e01d64f3e7a9dccb1d63af5 (47 x ServHelper, 30 x Vidar, 20 x LummaStealer)
ssdeep 49152:HAssXOlNQSEqpXU5/amK2rywZz+gynASerwf3/+zOMiP7CvZSc0kz8CR5M+xxEgG:SXOlNQSfpg8
Threatray 78 similar samples on MalwareBazaar
TLSH E356E116BCD204FAC57AE170895293A176723C64C7323BD32E9576AA1AB5FD42F3E310
Reporter SecuriteInfoCom
Tags:ServHelper

Intelligence

File Origin
# of uploads :
1
# of downloads :
1'745
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Variant.Bulz.386265.8401.2648
Verdict:
No threats detected
Analysis date:
2021-03-27 13:34:41 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/378e21c9-fd2e-4c2c-a409-910afe9e2c22

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/127263/
Detection(s):
SecuriteInfo.com.Variant.Bulz.386265.8401.2648.UNOFFICIAL
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Using the Windows Management Instrumentation requests
Forced system process termination
Creating a file in the system32 subdirectories
Sending a UDP request
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
HAFNIUM
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b3f592a0-cf89-4f60-91f2-5b497e3e72ff
Result
Threat name:
Unknown
Detection:
malicious
Classification:
evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/655856
Signature
Adds a new user with administrator rights
Antivirus detection for dropped file
Bypasses PowerShell execution policy
Creates a Windows Service pointing to an executable in C:\Windows
Powershell drops PE file
Queries sensitive service information (via WMI, WIN32_SERVICE, often done to detect sandboxes)
Sigma detected: Dot net compiler compiles file from suspicious location
Uses cmd line tools excessively to alter registry or file data
Yara detected Costura Assembly Loader
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 376864 Sample: SecuriteInfo.com.Variant.Bu... Startdate: 27/03/2021 Architecture: WINDOWS Score: 92 71 Antivirus detection for dropped file 2->71 73 Yara detected Powershell download and execute 2->73 75 Sigma detected: Dot net compiler compiles file from suspicious location 2->75 77 Yara detected Costura Assembly Loader 2->77 10 SecuriteInfo.com.Variant.Bulz.386265.8401.exe 5 2->10         started        13 cmd.exe 2->13         started        15 cmd.exe 2->15         started        17 rdpdr.sys 2->17         started        process3 signatures4 87 Bypasses PowerShell execution policy 10->87 19 powershell.exe 52 10->19         started        23 net.exe 13->23         started        25 conhost.exe 13->25         started        27 conhost.exe 15->27         started        process5 file6 65 C:\Windows\Branding\mediasvc.png, PE32+ 19->65 dropped 67 C:\Windows\Branding\mediasrv.png, PE32+ 19->67 dropped 69 C:\Users\user\AppData\...\nycgn0qh.cmdline, UTF-8 19->69 dropped 79 Uses cmd line tools excessively to alter registry or file data 19->79 81 Queries sensitive service information (via WMI, WIN32_SERVICE, often done to detect sandboxes) 19->81 83 Adds a new user with administrator rights 19->83 85 Powershell drops PE file 19->85 29 reg.exe 19->29         started        32 csc.exe 19->32         started        35 cmd.exe 19->35         started        39 9 other processes 19->39 37 net1.exe 23->37         started        signatures7 process8 file9 89 Creates a Windows Service pointing to an executable in C:\Windows 29->89 61 C:\Users\user\AppData\Local\...\jmqlqdz0.dll, PE32 32->61 dropped 41 cvtres.exe 32->41         started        43 cmd.exe 35->43         started        63 C:\Users\user\AppData\Local\...\nycgn0qh.dll, PE32 39->63 dropped 45 cmd.exe 39->45         started        47 cvtres.exe 39->47         started        49 conhost.exe 39->49         started        51 3 other processes 39->51 signatures10 process11 process12 53 net1.exe 41->53         started        55 net.exe 43->55         started        57 net.exe 45->57         started        process13 59 net1.exe 55->59         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/58514fa7288607858aae17799ded4bb96d5f9b78733ad1ca2cece597d5516d44/
Threat name:
Win64.Trojan.WinGoGoCLR
Create hunting rule
Status:
Malicious
First seen:
2021-03-27 13:32:07 UTC
AV detection:
18 of 29 (62.07%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=lbiu7jziqydylcvoc54z33klxfwv7g3yom5ndsrm5tszpvkrnvca._file
Verdict:
malicious
Similar samples:
106c0169d2464a9efe9ee45c1e7c5863764e6d9fca3809bb249bbb97d3cf3086
ServHelper
1780d38ef73129177134042720cfc526fe012760f406e9e030d8d5fbbdfb7828
ServHelper
1c1cac311f126dd8a0a2b969af40fccbe62c6569fc9c1aea7ee7054f48f1d033
ServHelper
499e3672259c28f6bd35d790c2ec4f52835cfcd46c8ddf279df4b02d4d07d7e5
ServHelper
5090fa74f83368086c1d197dcd28e51f8b36cd5d2c18e9a964d925a445ea0066
ServHelper
706a3b4438e7b883d8c3cd66ffabfbb3e3495b3b7c6f9b48adf7a5c8cdd0c3c1
ServHelper
a27fa7724da938df040a3e535f2be9cec4d6d93bd4f2e5ec2ba79560f84cb69c
ServHelper
a2a7e43ce1a853842ecb2bdb665b180119d539d56ce2c2eab1a54d098cc92edd
ServHelper
c394b83a255961adb3ec0c8e35b21e05ee432b3c758b25ceac7e3dc3a10486a7
ServHelper
eed912423954b56dc4ea01f9d3fb1c46ea175be378889fd886e37c09954cfaba
ServHelper
+ 68 additional samples on MalwareBazaar
Result
Malware family:
servhelper
Create hunting rule
Score:
  10/10
Tags:
family:servhelper backdoor discovery exploit persistence trojan upx
Link:
https://tria.ge/reports/210327-dhxpjgkpnn/
Behaviour
Delays execution with timeout.exe
Modifies data under HKEY_USERS
Modifies registry key
Runs net.exe
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Loads dropped DLL
Modifies file permissions
Blocklisted process makes network request
Modifies RDP port number used by Windows
Possible privilege escalation attempt
Sets DLL path for service in the registry
UPX packed file
Grants admin privileges
ServHelper
Malware Config
Dropper Extraction:
https://raw.githubusercontent.com/sqlitey/sqlite/master/speed.ps1
Unpacked files
SH256 hash:
58514fa7288607858aae17799ded4bb96d5f9b78733ad1ca2cece597d5516d44
MD5 hash:
af6bd8f141651c4f330bf5e5c0c16926
SHA1 hash:
f8fa401cad5cddbfe14a489402ebf396e9c19cf5
Link:
https://www.unpac.me/results/db28a83d-c536-4cf3-a437-e90e869c538c/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/58514fa7288607858aae17799ded4bb96d5f9b78733ad1ca2cece597d5516d44

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:suspicious_packer_section
Create hunting rule
Author:@j0sm1
Description:The packer/protector section names/keywords
Reference:http://www.hexacorn.com/blog/2012/10/14/random-stats-from-1-2m-samples-pe-section-names/
Rule name:susp_winsvc_upx
Create hunting rule
Author:SBousseaden
Description:broad hunt for any PE exporting ServiceMain API and upx packed
Rule name:win_servhelper_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

ServHelper

Executable exe 58514fa7288607858aae17799ded4bb96d5f9b78733ad1ca2cece597d5516d44

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1083192/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/127263/

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