MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 be31a5c1391bbc1c62d8f2c9fbebb9147ba69371fd8e7fcf81fcb5a9ac6ddf73. 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: 10
| SHA256 hash: | be31a5c1391bbc1c62d8f2c9fbebb9147ba69371fd8e7fcf81fcb5a9ac6ddf73 |
|---|---|
| SHA3-384 hash: | fe36c29a59e73edb1bca140327b64609686bf6acb15bd4933703ceaf27d0ea3417f7a7ee0ac5fbe7186b68e782b49f5b |
| SHA1 hash: | ef9a75e2b5f1732d29304a7364d987c2fea50a30 |
| MD5 hash: | 3f3ad07ea1f4d9e6ec31787150784fc5 |
| humanhash: | jersey-eighteen-yankee-aspen |
| File name: | 3f3ad07ea1f4d9e6ec31787150784fc5.exe |
| Download: | download sample |
| Signature | ServHelper |
| File size: | 6'340'608 bytes |
| First seen: | 2021-04-03 06:19:56 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 4035d2883e01d64f3e7a9dccb1d63af5 (47 x ServHelper, 20 x LummaStealer, 17 x Rhadamanthys) |
| ssdeep | 49152:bG0dXKNWfxioNLFq5MWoX60ydzEyAJveHaIoPvgZsarf5lsdJ+b/BKjnGUyeUW9I:9XCWfAohyT |
| Threatray | 93 similar samples on MalwareBazaar |
| TLSH | CC56E012BCD218FAC57AE1708556A3A17A713CA487323BD72E8475BA1AB5FD42F3D310 |
| Reporter |  abuse_ch |
| Tags: | exe ServHelper |
Intelligence
File Origin
# of uploads :
1
# of downloads :
1'789
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
3f3ad07ea1f4d9e6ec31787150784fc5.exe
Verdict:
No threats detected
Analysis date:
2021-04-03 06:21:02 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Sending a UDP request
Creating a file in the system32 subdirectories
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
Using the Windows Management Instrumentation requests
Forced system process termination
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.
Malware family:
HAFNIUM
Verdict:
Malicious
Result
Threat name:
Unknown
Detection:
malicious
Classification:
evad
Score:
84 / 100
Signature
Adds a new user with administrator rights
Antivirus detection for dropped file
Bypasses PowerShell execution policy
Creates a Windows Service pointing to an executable in C:\Windows
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:
Threat name:
Win64.Trojan.WinGoGoCLR
Status:
Malicious
First seen:
2021-04-03 06:20:12 UTC
AV detection:
17 of 47 (36.17%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 83 additional samples on MalwareBazaar
Result
Malware family:
servhelper
Score:
10/10
Tags:
family:servhelper backdoor discovery exploit persistence trojan upx
Behaviour
Delays execution with timeout.exe
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
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
Malware Config
Dropper Extraction:
https://raw.githubusercontent.com/sqlitey/sqlite/master/speed.ps1
Unpacked files
SH256 hash:
be31a5c1391bbc1c62d8f2c9fbebb9147ba69371fd8e7fcf81fcb5a9ac6ddf73
MD5 hash:
3f3ad07ea1f4d9e6ec31787150784fc5
SHA1 hash:
ef9a75e2b5f1732d29304a7364d987c2fea50a30
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | INDICATOR_TOOL_GoCLR |
|---|---|
| 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: | suspicious_packer_section |
|---|---|
| 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 |
|---|---|
| Author: | SBousseaden |
| Description: | broad hunt for any PE exporting ServiceMain API and upx packed |
| Rule name: | win_servhelper_auto |
|---|---|
| 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
Delivery method
Distributed via web download
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