MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 be9c5e5ce6d4544e6bddbd47c26873fe0c33414086824b1d4968a638184a8a7c. 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: 8


Intelligence 8 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: be9c5e5ce6d4544e6bddbd47c26873fe0c33414086824b1d4968a638184a8a7c
SHA3-384 hash: 8d350b630db7eb7b5739405647e795a4b21a58acd64f9c908272b1af2179c30d5dfb5556b4e0c828f8ea879ab0821e11
SHA1 hash: 199c1fbd29f9ec98b83464763dac63ef80998bb3
MD5 hash: bfe0ac25eeeb759f7c8e06229c7313a2
humanhash: arizona-johnny-juliet-bulldog
File name:bfe0ac25eeeb759f7c8e06229c7313a2.exe
Download: download sample
Signature ServHelper
Create hunting rule
File size:6'203'392 bytes
First seen:2021-08-11 07:35:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash c7269d59926fa4252270f407e4dab043 (45 x Hive, 23 x ServHelper, 22 x CobaltStrike)
ssdeep 49152:tvGIuxrb/TkvO90dL3BmAFd4A64nsfJ1XU59mMJETIR1iVhYOxbJBKqKhmYYMNn9:tvGfXdmAQQQQQQQQQQQQQ
Threatray 133 similar samples on MalwareBazaar
TLSH T10F56F113BC9564B9C9E9D23289B592913731B489073977C73F84A6BA2F77BC40E39360
Reporter abuse_ch
Tags:exe ServHelper

Intelligence

File Origin
# of uploads :
1
# of downloads :
1'273
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
bfe0ac25eeeb759f7c8e06229c7313a2.exe
Verdict:
No threats detected
Analysis date:
2021-08-11 07:36:19 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/571c3e0f-b03f-490d-b8c7-a48a0f066a96

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/178131/
Detection(s):
Win.Malware.Bulz-9847817-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Using the Windows Management Instrumentation requests
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Forced system process termination
Sending a UDP request
Creating a file in the Windows subdirectories
Launching the process to interact with network services
Running batch commands
Launching a service
Loading a system driver
Creating a file
DNS request
Connection attempt
Sending a custom TCP request
Enabling autorun for a service
Downloading the file
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/77e964a9-96fd-4461-83cb-c342982c493d
Result
Threat name:
SERVHELPER
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/830701
Signature
Adds a new user with administrator rights
Antivirus detection for dropped file
Bypasses PowerShell execution policy
Contains functionality to start a terminal service
Creates a Windows Service pointing to an executable in C:\Windows
Detected SERVHELPER
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
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 dnsIp2 2 Behavior Graph ID: 463133 Sample: lr655cUCHx.exe Startdate: 11/08/2021 Architecture: WINDOWS Score: 100 77 sasf6asf683jfsd.xyz 2->77 79 sadiviai9d9asd.xyz 2->79 81 2 other IPs or domains 2->81 85 Antivirus detection for dropped file 2->85 87 Multi AV Scanner detection for submitted file 2->87 89 Contains functionality to start a terminal service 2->89 91 5 other signatures 2->91 11 lr655cUCHx.exe 4 2->11         started        14 cmd.exe 2->14         started        16 cmd.exe 2->16         started        18 2 other processes 2->18 signatures3 process4 signatures5 103 Bypasses PowerShell execution policy 11->103 105 Queries memory information (via WMI often done to detect virtual machines) 11->105 20 powershell.exe 69 11->20         started        25 net.exe 14->25         started        27 conhost.exe 14->27         started        29 net.exe 16->29         started        31 conhost.exe 16->31         started        33 conhost.exe 18->33         started        process6 dnsIp7 83 asbza.cn 206.188.197.227, 49744, 80 DEFENSE-NETUS United States 20->83 69 C:\Windows\Branding\mediasvc.png, PE32+ 20->69 dropped 71 C:\Windows\Branding\mediasrv.png, PE32+ 20->71 dropped 73 C:\Users\user\AppData\...\0ct135tt.cmdline, UTF-8 20->73 dropped 95 Detected SERVHELPER 20->95 97 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 20->97 99 Uses cmd line tools excessively to alter registry or file data 20->99 101 3 other signatures 20->101 35 reg.exe 20->35         started        38 cmd.exe 20->38         started        40 cmd.exe 20->40         started        46 8 other processes 20->46 42 net1.exe 25->42         started        44 net1.exe 29->44         started        file8 signatures9 process10 file11 93 Creates a Windows Service pointing to an executable in C:\Windows 35->93 49 cmd.exe 38->49         started        51 cmd.exe 40->51         started        75 C:\Users\user\AppData\Local\...\0ct135tt.dll, PE32 46->75 dropped 53 cvtres.exe 46->53         started        55 conhost.exe 46->55         started        57 conhost.exe 46->57         started        59 2 other processes 46->59 signatures12 process13 process14 61 net.exe 49->61         started        63 net.exe 51->63         started        process15 65 net1.exe 61->65         started        67 net1.exe 63->67         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/be9c5e5ce6d4544e6bddbd47c26873fe0c33414086824b1d4968a638184a8a7c/
Threat name:
ByteCode-MSIL.Trojan.WinGoGoCLR
Create hunting rule
Status:
Malicious
First seen:
2021-08-11 00:43:34 UTC
AV detection:
6 of 28 (21.43%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=x2of4xhg2rke4265xvd4e2dt7ygdgqkaq2bewhkjnctdqgckrj6a._file
Verdict:
malicious
Similar samples:
5c7e8b5ecf30c04a3a6e3726328c37eccfc8f0656797894d71e2ac7c27c20c9d
ServHelper
6eca26fcfabbb12c6a37eb689de222e75b31574dd25e7fd3d8b446d700c40133
ServHelper
7ca008588561777420954419f28471ffc53dded26af0c640991ecf80de490d99
ServHelper
8779c8ac97c45254bc243e2ee79b436d1a96bc56885dcaa72c4837790b2071fc
ServHelper
9d2a3042c4e2d68df7a39cd7efae7c64f2b7ed5ae507bac9282e154591757724
ServHelper
a5ce80281a88db0129bcdadd338ccf21d07b4b960ea92dc3b1861b7276d354ec
ServHelper
b591e73c3ebfe7ba44eb161c3cc1ee7b9a794d4e9b9b9aa4e3936f518e814ceb
ServHelper
d4989171b0fe1cc05ae35c3ce1f779f1ed190cb194c68595586cad6694aa8e64
ServHelper
f4adc9d5df2c5543d17faa940efced9980a87b98a8858ccc3547fb51e154ecaa
ServHelper
+ 123 additional samples on MalwareBazaar
Result
Malware family:
servhelper
Create hunting rule
Score:
  10/10
Tags:
family:servhelper backdoor discovery exploit persistence suricata trojan upx
Link:
https://tria.ge/reports/210811-mcg8db3726/
Behaviour
Modifies data under HKEY_USERS
Modifies registry key
Modifies system certificate store
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
suricata: ET MALWARE ServHelper CnC Inital Checkin
Malware Config
Dropper Extraction:
https://raw.githubusercontent.com/sqlitey/sqlite/master/speed.ps1
Unpacked files
SH256 hash:
be9c5e5ce6d4544e6bddbd47c26873fe0c33414086824b1d4968a638184a8a7c
MD5 hash:
bfe0ac25eeeb759f7c8e06229c7313a2
SHA1 hash:
199c1fbd29f9ec98b83464763dac63ef80998bb3
Link:
https://www.unpac.me/results/6ac35074-38ef-47e3-9b22-551a780353a0/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/be9c5e5ce6d4/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.30
Link:
https://yomi.yoroi.company/submissions/be9c5e5ce6d4544e6bddbd47c26873fe0c33414086824b1d4968a638184a8a7c

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:GoBinTest
Create hunting rule
Rule name:GoBinTest
Create hunting rule
Rule name:golang
Create hunting rule
Rule name:golang
Create hunting rule
Rule name:INDICATOR_TOOL_GoCLR
Create hunting rule
Author:ditekSHen
Description:Detects binaries utilizing Go-CLR for hosting the CLR in a Go process and using it to execute a DLL from disk or an assembly from memory
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 be9c5e5ce6d4544e6bddbd47c26873fe0c33414086824b1d4968a638184a8a7c

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1518058/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/178131/

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