MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3f4af8c0a06563d9f4d959d5065c02b83140c0fea19924dbd39984087ace54f8. 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: 7


Intelligence 7 IOCs YARA 6 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3f4af8c0a06563d9f4d959d5065c02b83140c0fea19924dbd39984087ace54f8
SHA3-384 hash: fb4653f8b7bc64f1cb5cc7750733f99ed27ad307437aa8a4956b060226872fe99b49dc250cd62411718f8f472a126850
SHA1 hash: 1252272a3ce436866fa236b039396891228fb235
MD5 hash: be8b9976bbf090bc23facc50a90273d6
humanhash: delta-failed-mexico-thirteen
File name:be8b9976bbf090bc23facc50a90273d6
Download: download sample
Signature ServHelper
Create hunting rule
File size:6'203'904 bytes
First seen:2021-09-06 22:47:04 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:dHeOrbrb/TkvO90dL3BmAFd4A64nsfJZgP5MoFom9UwLS3pcOxF7Vooi6gwciPiy:dHJBgSmAQQQQQQQQQQQQQ
Threatray 110 similar samples on MalwareBazaar
TLSH T1D156F147BC9064B9C9E9D232897592A23732B44D033977C72F55A6BA2F7B7C40E39360
Reporter zbetcheckin
Tags:exe ServHelper

Intelligence

File Origin
# of uploads :
1
# of downloads :
1'202
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
setup_x86_x64_install.exe
Verdict:
Malicious activity
Analysis date:
2021-09-06 04:35:13 UTC
Tags:
trojan stealer vidar loader rat redline evasion opendir raccoon
Link:
https://app.any.run/tasks/a8feca85-aea7-4b74-ad6c-085baf3ff581

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/185771/
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
Sending a UDP request
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Forced system process termination
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
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1eb5cd84-928d-42e9-94f0-6b54380192a0
Result
Threat name:
SERVHELPER
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/846166
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
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 PowerShell Invocations - Specific
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: 478598 Sample: 5C4XZhIBzh Startdate: 07/09/2021 Architecture: WINDOWS Score: 100 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 10 5C4XZhIBzh.exe 4 2->10         started        13 cmd.exe 2->13         started        15 cmd.exe 2->15         started        17 4 other processes 2->17 process3 signatures4 105 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 10->105 107 Bypasses PowerShell execution policy 10->107 109 Queries memory information (via WMI often done to detect virtual machines) 10->109 19 powershell.exe 47 10->19         started        23 net.exe 13->23         started        25 conhost.exe 13->25         started        27 net.exe 15->27         started        29 conhost.exe 15->29         started        31 net.exe 17->31         started        33 net.exe 17->33         started        35 conhost.exe 17->35         started        37 2 other processes 17->37 process5 file6 77 C:\Windows\Branding\mediasvc.png, PE32+ 19->77 dropped 79 C:\Windows\Branding\mediasrv.png, PE32+ 19->79 dropped 81 C:\Users\user\AppData\...\y1r4yijt.cmdline, UTF-8 19->81 dropped 93 Uses cmd line tools excessively to alter registry or file data 19->93 95 Queries sensitive service information (via WMI, WIN32_SERVICE, often done to detect sandboxes) 19->95 97 Adds a new user with administrator rights 19->97 99 Powershell drops PE file 19->99 39 powershell.exe 19->39         started        42 reg.exe 19->42         started        44 cmd.exe 19->44         started        54 8 other processes 19->54 46 net1.exe 23->46         started        48 net1.exe 27->48         started        50 net1.exe 31->50         started        52 net1.exe 33->52         started        signatures7 process8 file9 101 Detected SERVHELPER 39->101 57 conhost.exe 39->57         started        103 Creates a Windows Service pointing to an executable in C:\Windows 42->103 59 cmd.exe 44->59         started        83 C:\Users\user\AppData\Local\...\y1r4yijt.dll, PE32 54->83 dropped 61 cmd.exe 54->61         started        63 cvtres.exe 54->63         started        65 conhost.exe 54->65         started        67 2 other processes 54->67 signatures10 process11 process12 69 net.exe 59->69         started        71 net.exe 61->71         started        process13 73 net1.exe 69->73         started        75 net1.exe 71->75         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3f4af8c0a06563d9f4d959d5065c02b83140c0fea19924dbd39984087ace54f8/
Threat name:
Win64.Trojan.WinGoGoCLR
Create hunting rule
Status:
Malicious
First seen:
2021-09-05 09:03:13 UTC
AV detection:
17 of 28 (60.71%)
Threat level:
  5/5
Verdict:
malicious
Similar samples:
255141a430ed2bbda653b5ab18acdd8dcca5a39cf8c2d1fa938445e31ecf38e5
ServHelper
266562d82899806c0eafc3ca72216e78d41403dd24effebd31d7635922ba96ce
ServHelper
5911ad0a2f2f76cbe6e83b58b95ac820aee88b7fb37e017275bd3984b3b92bfa
ServHelper
77207663d42c90aeeb0724391087ebeb2cdb6134ce1fe731ef908c8a961083fe
ServHelper
ae1c9d454905ed43654f99b1ea1e8ecc3ae08eb75c3860f46b285ce724ae5e4d
ServHelper
be9c5e5ce6d4544e6bddbd47c26873fe0c33414086824b1d4968a638184a8a7c
ServHelper
f7a805b251505433e34517da69eccb73955a424bb9d9061309091cf52c07a349
ServHelper
fd8f5bd06d288207635503abf28da66ec823359d18c6f887750831035d51e9d6
ServHelper
ff257a7b22badf7948f21dd5dfaf008dd72895aa63bc6a1c5838cbe26036bbe7
ServHelper
+ 100 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/210906-2q4ydabef9/
Unpacked files
SH256 hash:
3f4af8c0a06563d9f4d959d5065c02b83140c0fea19924dbd39984087ace54f8
MD5 hash:
be8b9976bbf090bc23facc50a90273d6
SHA1 hash:
1252272a3ce436866fa236b039396891228fb235
Link:
https://www.unpac.me/results/7db069f8-e8a4-46f2-86b4-fbdfe8eea549/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/3f4af8c0a065/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/3f4af8c0a06563d9f4d959d5065c02b83140c0fea19924dbd39984087ace54f8

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: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

File information

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

Web download

ServHelper

Executable exe 3f4af8c0a06563d9f4d959d5065c02b83140c0fea19924dbd39984087ace54f8

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1598013/
Cape
Cape
https://www.capesandbox.com/analysis/185771/

Comments


Avatar
zbet commented on 2021-09-06 22:47:06 UTC

url : hxxp://37.0.10.214/EU/clr.exe