MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b3f483f00e80c0777858e6795f9f13bce726ff8265ef3e8cd3602cf1711247a2. 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
| SHA256 hash: | b3f483f00e80c0777858e6795f9f13bce726ff8265ef3e8cd3602cf1711247a2 |
|---|---|
| SHA3-384 hash: | e38669ad9a97f2a6c740c53d2be64bd32c901deb4bd6da9fae5af347bfeda3c7ac10ca5f2a30d419777afeaa1e85cecd |
| SHA1 hash: | b89323ad4d1f09227e097173420504f24e27e131 |
| MD5 hash: | 2b7720a936539736e36bb95fd6c61818 |
| humanhash: | august-spaghetti-mars-uranus |
| File name: | 2b7720a936539736e36bb95fd6c61818 |
| Download: | download sample |
| Signature | ServHelper |
| File size: | 4'606'464 bytes |
| First seen: | 2021-07-08 16:03:41 UTC |
| Last seen: | 2021-07-08 17:37:37 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| ssdeep | 98304:2NDO+tT4Hi9UI3kvCFhJnQSTr7OXz3SzV5wwxPAWO9L:2I+tTEiaI13JQur7u3STPYWO9 |
| Threatray | 125 similar samples on MalwareBazaar |
| TLSH | T1372633A8762171DFC86BD4328DE82E2DEB126076879FD707A097359D5A0D4DBCF210E2 |
| Reporter |  zbetcheckin |
| Tags: | exe ServHelper |
Intelligence
File Origin
# of uploads :
2
# of downloads :
1'395
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2b7720a936539736e36bb95fd6c61818
Verdict:
No threats detected
Analysis date:
2021-07-08 16:06:14 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
UNKNOWN
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
Result
Threat name:
SERVHELPER
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Antivirus detection for dropped file
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Contains functionality to start a terminal service
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 dropped file
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: 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
Yara detected Powershell dedcode and execute
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Generic
Status:
Suspicious
First seen:
2021-07-08 15:44:56 UTC
AV detection:
17 of 29 (58.62%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 115 additional samples on MalwareBazaar
Result
Malware family:
servhelper
Score:
10/10
Tags:
family:servhelper backdoor discovery exploit persistence trojan upx
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:
b3f483f00e80c0777858e6795f9f13bce726ff8265ef3e8cd3602cf1711247a2
MD5 hash:
2b7720a936539736e36bb95fd6c61818
SHA1 hash:
b89323ad4d1f09227e097173420504f24e27e131
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.80
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: | Glasses |
|---|---|
| Author: | Seth Hardy |
| Description: | Glasses family |
| Rule name: | GlassesCode |
|---|---|
| Author: | Seth Hardy |
| Description: | Glasses code features |
| Rule name: | GoBinTest |
|---|
| Rule name: | golang |
|---|
| Rule name: | INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
| 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 |
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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