MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 82285ac0988c68f9b9ecc7649cb9c6a3f3ecb242dd198465dbd4236d7fa6a59c. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 82285ac0988c68f9b9ecc7649cb9c6a3f3ecb242dd198465dbd4236d7fa6a59c
SHA3-384 hash: 5975e03181ad7e4497f2c349ba28603ccddb8333a88adc14e84a9b03a1979f1152a3467b30face057893fdee7696e389
SHA1 hash: edf77f969bf54a47b21e6179cbcabb4651706d7c
MD5 hash: 748b112881047820f530c202bb59488e
humanhash: quebec-queen-skylark-october
File name:748b112881047820f530c202bb59488e.exe
Download: download sample
Signature ServHelper
Create hunting rule
File size:4'196'352 bytes
First seen:2021-09-26 14:51:29 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 50224ff96dd5c94187c86587f7b09a81 (2 x ServHelper)
ssdeep 49152:ZqVJP2m3Ejuh/Wrn0xzBmEtn4oRjAXL9mdsysSNBCmYdM1TGHgzBut:
Threatray 5 similar samples on MalwareBazaar
TLSH T123163321AEAD2D6ECBAC833D306F9F1C66155FC4C864FACB17A070D3115BB950B5B462
Reporter abuse_ch
Tags:exe ServHelper

Intelligence

File Origin
# of uploads :
1
# of downloads :
1'226
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
748b112881047820f530c202bb59488e.exe
Verdict:
Malicious activity
Analysis date:
2021-09-26 14:52:48 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/55d6abc8-34a6-44bd-b7e9-52258479d0ef

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/191795/
Detection(s):
Win.Downloader.Powershell-9883640-0
Create hunting rule

Win.Downloader.Powershell-9883847-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f59646ba-a2e6-48eb-bb69-bf0865a33220
Result
Threat name:
SERVHELPER
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/858446
Signature
Adds a new user with administrator rights
Bypasses PowerShell execution policy
Creates a Windows Service pointing to an executable in C:\Windows
Detected SERVHELPER
Multi AV Scanner detection for submitted file
Powershell drops PE file
Queries memory information (via WMI often done to detect virtual machines)
Queries sensitive service information (via WMI, WIN32_SERVICE, often done to detect sandboxes)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Hurricane Panda Activity
Sigma detected: Suspicious Csc.exe Source File Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Uses cmd line tools excessively to alter registry or file data
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 490877 Sample: G403pH6Kq5.exe Startdate: 26/09/2021 Architecture: WINDOWS Score: 100 59 Multi AV Scanner detection for submitted file 2->59 61 Sigma detected: Hurricane Panda Activity 2->61 63 Sigma detected: Suspicious Csc.exe Source File Folder 2->63 65 2 other signatures 2->65 10 G403pH6Kq5.exe 4 2->10         started        13 rdpdr.sys 2->13         started        process3 signatures4 69 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 10->69 71 Bypasses PowerShell execution policy 10->71 73 Queries memory information (via WMI often done to detect virtual machines) 10->73 15 powershell.exe 41 10->15         started        process5 file6 47 C:\Windows\SysWOW64\rdpclip.exe, PE32+ 15->47 dropped 49 C:\Users\user\AppData\...\sjov2rbf.cmdline, UTF-8 15->49 dropped 51 Detected SERVHELPER 15->51 53 Uses cmd line tools excessively to alter registry or file data 15->53 55 Queries sensitive service information (via WMI, WIN32_SERVICE, often done to detect sandboxes) 15->55 57 2 other signatures 15->57 19 reg.exe 15->19         started        22 cmd.exe 15->22         started        24 csc.exe 15->24         started        27 7 other processes 15->27 signatures7 process8 file9 67 Creates a Windows Service pointing to an executable in C:\Windows 19->67 29 cmd.exe 22->29         started        45 C:\Users\user\AppData\Local\...\sjov2rbf.dll, PE32 24->45 dropped 31 cvtres.exe 24->31         started        33 conhost.exe 27->33         started        35 conhost.exe 27->35         started        37 conhost.exe 27->37         started        39 net1.exe 27->39         started        signatures10 process11 process12 41 net.exe 29->41         started        process13 43 net1.exe 41->43         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/82285ac0988c68f9b9ecc7649cb9c6a3f3ecb242dd198465dbd4236d7fa6a59c/
Threat name:
ByteCode-MSIL.Trojan.Starter
Create hunting rule
Status:
Malicious
First seen:
2021-09-26 12:18:39 UTC
AV detection:
14 of 45 (31.11%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qiufvqeyrruptopmy5sjzoogupz6zmsc3umyizo32qrw275guwoa._file
Verdict:
malicious
Similar samples:
00f90cda9f514832ed2e3d6c232ad0677b2bad1550719cf2a02f1988980942ff
ServHelper
3c4c4cb0e9a48e8203ebe67da38dcfdc0d888213424ddd335a767f6a04e798ff
ServHelper
5d45cef43fb4c150c33337fb369a89800f9d235eee1dbdac13a8f6fd13bc1ee4
ServHelper
b41864bcaa9443f1e9cf6457b3f6d7702fd7fa3fbdaae79e3033f2c82bb70a38
ServHelper
d4e00a94b16acd89b61cd46d1fcee4385b0639dcd7d85029f6a6067f7b7437bf
ServHelper
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:servhelper family:xmrig backdoor miner persistence trojan
Link:
https://tria.ge/reports/210926-r8qtcsfac4/
Behaviour
Modifies registry key
Runs net.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Drops file in System32 directory
Modifies RDP port number used by Windows
Sets DLL path for service in the registry
Grants admin privileges
ServHelper
xmrig
Unpacked files
SH256 hash:
c41766e399e21513d78594ceeda827667639f7df1c5b16cac3df316681cde881
MD5 hash:
922638d792150781e24c197de9e999f0
SHA1 hash:
f5c01d97817889c5712d42a1d18db8e2d4f733c9
Link:
https://www.unpac.me/results/76ecb36f-d86c-4f06-9611-8ef8e0977fb7/
SH256 hash:
82285ac0988c68f9b9ecc7649cb9c6a3f3ecb242dd198465dbd4236d7fa6a59c
MD5 hash:
748b112881047820f530c202bb59488e
SHA1 hash:
edf77f969bf54a47b21e6179cbcabb4651706d7c
Link:
https://www.unpac.me/results/76ecb36f-d86c-4f06-9611-8ef8e0977fb7/
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/82285ac0988c68f9b9ecc7649cb9c6a3f3ecb242dd198465dbd4236d7fa6a59c

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:adonunix2
Create hunting rule
Author:Tim Brown @timb_machine
Description:AD on UNIX
Rule name:INDICATOR_EXE_Packed_Fody
Create hunting rule
Author:ditekSHen
Description:Detects executables manipulated with Fody

File information

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

Web download

ServHelper

Executable exe 82285ac0988c68f9b9ecc7649cb9c6a3f3ecb242dd198465dbd4236d7fa6a59c

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1584888/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/191795/

Comments