MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 58e1370fdd747d652f4c8e0dc59188f3dfabb6dfcd3491c6fe4b81c3305d5a46. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 58e1370fdd747d652f4c8e0dc59188f3dfabb6dfcd3491c6fe4b81c3305d5a46
SHA3-384 hash: b28506a806ab4684f8f35fc0771012be2d9b4b6f88d5de8b9bfbfb9fae5d0b23f61d3b2559d49c4b391ae91b16dafe9d
SHA1 hash: c9a7ba307304ef75da31fb9c34be5479904af4f6
MD5 hash: 3bc1e07e2f912ff37550fbfcf2696081
humanhash: december-south-princess-massachusetts
File name:3bc1e07e2f912ff37550fbfcf2696081.exe
Download: download sample
Signature ServHelper
Create hunting rule
File size:6'347'264 bytes
First seen:2021-03-10 09:47:16 UTC
Last seen:2021-03-10 11:53:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 4035d2883e01d64f3e7a9dccb1d63af5 (47 x ServHelper, 20 x LummaStealer, 17 x Rhadamanthys)
ssdeep 49152:4X45IjX6BQZsiONZglv5OLRvSguk1xIn2jsrJIb5UgtvL11jIbt8Q0ev/zZEl4U1:qX6BQZOwFq
Threatray 47 similar samples on MalwareBazaar
TLSH CB56E116BCD204FAC17EE17085529361BA713CA487327BD72E94BAAA1A75FD42F3D310
Reporter abuse_ch
Tags:exe ServHelper

Intelligence

File Origin
# of uploads :
2
# of downloads :
921
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/123548/
Detection(s):
SecuriteInfo.com.Trojan.MulDrop16.18218.135.17893.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Creating a file in the system32 subdirectories
Sending a UDP request
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
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.
Result
Threat name:
Unknown
Detection:
malicious
Classification:
evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/634129
Signature
Antivirus detection for dropped file
Bypasses PowerShell execution policy
Creates a Windows Service pointing to an executable in C:\Windows
Multi AV Scanner detection for submitted file
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 366031 Sample: S5IkoqzhcP.exe Startdate: 10/03/2021 Architecture: WINDOWS Score: 88 44 Antivirus detection for dropped file 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 Sigma detected: Dot net compiler compiles file from suspicious location 2->48 50 2 other signatures 2->50 8 S5IkoqzhcP.exe 5 2->8         started        process3 process4 10 powershell.exe 50 8->10         started        file5 38 C:\Windows\Branding\mediasvc.png, PE32+ 10->38 dropped 40 C:\Windows\Branding\mediasrv.png, PE32+ 10->40 dropped 42 C:\Users\user\AppData\...\pjzshoj3.cmdline, UTF-8 10->42 dropped 52 Uses cmd line tools excessively to alter registry or file data 10->52 54 Queries sensitive service information (via WMI, WIN32_SERVICE, often done to detect sandboxes) 10->54 56 Powershell drops PE file 10->56 14 reg.exe 10->14         started        17 csc.exe 10->17         started        20 csc.exe 10->20         started        22 6 other processes 10->22 signatures6 process7 file8 58 Creates a Windows Service pointing to an executable in C:\Windows 14->58 34 C:\Users\user\AppData\Local\...\pjzshoj3.dll, PE32 17->34 dropped 24 cvtres.exe 17->24         started        36 C:\Users\user\AppData\Local\...\flpoxb4u.dll, PE32 20->36 dropped 26 cvtres.exe 20->26         started        28 conhost.exe 22->28         started        30 conhost.exe 22->30         started        32 conhost.exe 22->32         started        signatures9 process10
Gathering data
Threat name:
Win64.Trojan.WinGoGoCLR
Create hunting rule
Status:
Malicious
First seen:
2021-03-09 22:25:11 UTC
AV detection:
6 of 46 (13.04%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ldqtod65or6wkl2mryg4lemi6pp2xnw7zu2jdrx6joa4gmc5ljda._file
Verdict:
malicious
Similar samples:
1c1cac311f126dd8a0a2b969af40fccbe62c6569fc9c1aea7ee7054f48f1d033
ServHelper
2347cc0db179374f808400368b0a66f1c15e02ad28d2b93ccc26d5aafb9777ca
ServHelper
499e3672259c28f6bd35d790c2ec4f52835cfcd46c8ddf279df4b02d4d07d7e5
ServHelper
6f7c097945c1602bbae27e4664004cf2139e66226f54b9499df311bdab804ebb
ServHelper
706a3b4438e7b883d8c3cd66ffabfbb3e3495b3b7c6f9b48adf7a5c8cdd0c3c1
ServHelper
78f5967d8bd5d31343632e8558b9315d9d44d009c923b9c41d417943906f2849
ServHelper
870c7c8a33ecded1784c2dab4d8027d3552f670d4138c049ad5b5ce7686b233d
ServHelper
a6e43031567484437341b50ea0c165ad416ffa629e2951a0e82844dcfb27e408
ServHelper
d7420d82ddf1f14456c5c8fc3c1a4a128937bad4d34794dbe103aacc4a2aa699
ServHelper
d926fe443c0ceb65e70cd64ac3d18a77d75d039486f1698dbd103c3cda2dff52
ServHelper
+ 37 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery exploit persistence upx
Link:
https://tria.ge/reports/210310-3vcmhaevrs/
Behaviour
Modifies data under HKEY_USERS
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
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
Malware Config
Dropper Extraction:
https://raw.githubusercontent.com/sqlitey/sqlite/master/speed.ps1
Unpacked files
SH256 hash:
58e1370fdd747d652f4c8e0dc59188f3dfabb6dfcd3491c6fe4b81c3305d5a46
MD5 hash:
3bc1e07e2f912ff37550fbfcf2696081
SHA1 hash:
c9a7ba307304ef75da31fb9c34be5479904af4f6
Link:
https://www.unpac.me/results/5d116a3c-c952-45a0-9ab2-afd447ccbb27/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/58e1370fdd747d652f4c8e0dc59188f3dfabb6dfcd3491c6fe4b81c3305d5a46

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:upx_packed
Create hunting rule
Description:UPX packed file
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 58e1370fdd747d652f4c8e0dc59188f3dfabb6dfcd3491c6fe4b81c3305d5a46

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/975095/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1054686/
  
URLhaus
https://urlhaus.abuse.ch/url/1000963/
Cape
Cape
https://www.capesandbox.com/analysis/123548/

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