MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2142824c415eb4f05facc471942840e5065aa41b322f36dac198d30d00e8b6fc. 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 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2142824c415eb4f05facc471942840e5065aa41b322f36dac198d30d00e8b6fc
SHA3-384 hash: 14fcab42c73d6dd55e68a67cc01742f80639bbba27f7d569ca5aa02bc6bb094a9365e05903b9c06f7e74d6c5dda49f76
SHA1 hash: ccc3ee69a33b31581de0fecb911d5d8974288d60
MD5 hash: dbad0a50ee82c2e5dff20a24858b7a06
humanhash: winner-hotel-batman-charlie
File name:dbad0a50ee82c2e5dff20a24858b7a06
Download: download sample
Signature ServHelper
Create hunting rule
File size:3'347'456 bytes
First seen:2021-07-09 18:50:41 UTC
Last seen:2021-07-09 19:47:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 98304:eXNYmRMATvboTHz9Wy4fB7PgQzYEWs+vWPyg:oqm5zCz9O9YQzn+v2
Threatray 131 similar samples on MalwareBazaar
TLSH T1B5F5239C7664319FD52BC472C9912E74BA60AC2B570F822374277DECAA8CE4BCF155B0
Reporter zbetcheckin
Tags:exe ServHelper

Intelligence

File Origin
# of uploads :
2
# of downloads :
1'374
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
dbad0a50ee82c2e5dff20a24858b7a06
Verdict:
No threats detected
Analysis date:
2021-07-09 18:52:31 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/a6d4901b-88d5-4f14-82e3-2653c8e4c5c2

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/170734/
Detection(s):
SecuriteInfo.com.W64.MSIL_Kryptik.DJR.genEldorado.13847.21619.UNOFFICIAL
Create hunting rule

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/6461a5a6-99a2-48e9-9cf4-8700433a02f5
Result
Threat name:
SERVHELPER
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/814184
Signature
Adds a new user with administrator rights
Allocates memory in foreign processes
Antivirus detection for dropped file
Bypasses PowerShell execution policy
Creates a Windows Service pointing to an executable in C:\Windows
Detected SERVHELPER
Injects a PE file into a foreign processes
Modifies the context of a thread in another process (thread injection)
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: Hurricane Panda Activity
Sigma detected: Suspicious Csc.exe Source File Folder
Uses cmd line tools excessively to alter registry or file data
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 446595 Sample: b4sc5MFP8U Startdate: 09/07/2021 Architecture: WINDOWS Score: 100 69 Antivirus detection for dropped file 2->69 71 Multi AV Scanner detection for submitted file 2->71 73 Yara detected AntiVM3 2->73 75 3 other signatures 2->75 11 b4sc5MFP8U.exe 3 2->11         started        15 rdpdr.sys 2->15         started        process3 file4 63 C:\Users\user\AppData\...\b4sc5MFP8U.exe.log, ASCII 11->63 dropped 87 Writes to foreign memory regions 11->87 89 Allocates memory in foreign processes 11->89 91 Modifies the context of a thread in another process (thread injection) 11->91 93 Injects a PE file into a foreign processes 11->93 17 vbc.exe 4 11->17         started        signatures5 process6 signatures7 67 Bypasses PowerShell execution policy 17->67 20 powershell.exe 47 17->20         started        process8 dnsIp9 65 192.168.2.1 unknown unknown 20->65 57 C:\Windows\Branding\mediasvc.png, PE32+ 20->57 dropped 59 C:\Windows\Branding\mediasrv.png, PE32+ 20->59 dropped 61 C:\Users\user\AppData\...\sfxeepiz.cmdline, UTF-8 20->61 dropped 77 Detected SERVHELPER 20->77 79 Uses cmd line tools excessively to alter registry or file data 20->79 81 Queries sensitive service information (via WMI, WIN32_SERVICE, often done to detect sandboxes) 20->81 83 2 other signatures 20->83 25 reg.exe 20->25         started        28 cmd.exe 20->28         started        30 cmd.exe 20->30         started        32 8 other processes 20->32 file10 signatures11 process12 file13 85 Creates a Windows Service pointing to an executable in C:\Windows 25->85 35 cmd.exe 28->35         started        37 cmd.exe 30->37         started        55 C:\Users\user\AppData\Local\...\sfxeepiz.dll, PE32 32->55 dropped 39 cvtres.exe 32->39         started        41 conhost.exe 32->41         started        43 conhost.exe 32->43         started        45 2 other processes 32->45 signatures14 process15 process16 47 net.exe 35->47         started        49 net.exe 37->49         started        process17 51 net1.exe 47->51         started        53 net1.exe 49->53         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2142824c415eb4f05facc471942840e5065aa41b322f36dac198d30d00e8b6fc/
Threat name:
ByteCode-MSIL.Packed.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-07-09 18:51:12 UTC
AV detection:
11 of 28 (39.29%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=efbietcbl22pax5myryzikca4udfvja3gixtnwwbtdjq2ahiw36a._file
Verdict:
malicious
Similar samples:
1555f744c779e3ce93f92b454ad2092e136622c39c21eca20125dd79cdf8fb94
ServHelper
15e71d5e4b29bbf6f1e97bb6ff2cfdb199fb040746d57443163a5c8fecd745aa
ServHelper
4d7bb45f219aaebc5c2745b60879b954a56b58a3f16c5e5c3252143c9b7a3a47
ServHelper
7dc721c6b633d783562f73d629267da7a16a77b4dae9ab280250c116bdfec591
ServHelper
b3f483f00e80c0777858e6795f9f13bce726ff8265ef3e8cd3602cf1711247a2
ServHelper
c2748f872784ed3b7b9b2c51993d861a5283d3ca17579d367149031b2e479d82
ServHelper
d9ec3c5cf92b5b3aa1d59949cf1eafb9c695d35ce9872215ba8b189d40c66823
ServHelper
eb02c967fb3feaf5504a78de8a7e0513c2c4e52ddf2243bfbcb10e83954baaad
ServHelper
fe40b63a00a7d737baa87f493751a1b92ac782baaef2304b0ae65c5a1cbec58d
ServHelper
+ 121 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/210709-4hevejhr5a/
Behaviour
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
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Modifies file permissions
Uses the VBS compiler for execution
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
Core1 .NET packer
Grants admin privileges
ServHelper
Malware Config
Dropper Extraction:
https://raw.githubusercontent.com/sqlitey/sqlite/master/speed.ps1
Unpacked files
SH256 hash:
2142824c415eb4f05facc471942840e5065aa41b322f36dac198d30d00e8b6fc
MD5 hash:
dbad0a50ee82c2e5dff20a24858b7a06
SHA1 hash:
ccc3ee69a33b31581de0fecb911d5d8974288d60
Link:
https://www.unpac.me/results/14d8d4d3-5637-4357-898d-bb8289afe0f1/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/2142824c415eb4f05facc471942840e5065aa41b322f36dac198d30d00e8b6fc

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:golang
Create hunting rule
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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 2142824c415eb4f05facc471942840e5065aa41b322f36dac198d30d00e8b6fc

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1436477/
Cape
Cape
https://www.capesandbox.com/analysis/170734/

Comments


Avatar
zbet commented on 2021-07-09 18:50:42 UTC

url : hxxp://tulgerosp.us/rdpa.exe