MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6966ad7c975ddb2bddcd4b4ed59fbf594ea0efbf2ecf5379cb288a861ad135c6. 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: 9


Intelligence 9 IOCs YARA 8 File information Comments 1

SHA256 hash: 6966ad7c975ddb2bddcd4b4ed59fbf594ea0efbf2ecf5379cb288a861ad135c6
SHA3-384 hash: c5dcb27e85cfb4a99e30603b8bd306e6219c63964668091947ff38a8a708c6f3818a14911e67e6f915793ec9bec3801a
SHA1 hash: eb9ec8c1ddad50259ce14d53d5953801b8066087
MD5 hash: 3697ca9544a5562a762834461b3c0c09
humanhash: two-river-lake-sweet
File name:3697ca9544a5562a762834461b3c0c09.exe
Download: download sample
Signature ServHelper
File size:6'321'664 bytes
First seen:2021-05-22 20:15:38 UTC
Last seen:2021-05-22 21:02:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 4035d2883e01d64f3e7a9dccb1d63af5 (47 x ServHelper, 20 x LummaStealer, 17 x Rhadamanthys)
ssdeep 49152:VdZa4oIMCqyP5LwqX+4/M316n8y6jntCUgzTEppvLw3UM4UHBaXy+o3c+yws81kp:Vy4oIUyy
Threatray 104 similar samples on MalwareBazaar
TLSH D556E012BCE218FAC57AE170845697617A723CA883357BE32F94756E1A74FD42B3E310
Reporter abuse_ch
Tags:exe ServHelper

Intelligence


File Origin
# of uploads :
2
# of downloads :
1'510
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
http://193.150.70.4/al.exe
Verdict:
No threats detected
Analysis date:
2021-05-21 03:39:30 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Sending a UDP request
Creating a window
Creating a file in the %temp% directory
Launching a process
Using the Windows Management Instrumentation requests
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 process with a hidden window
Creating a file
Deleting a recently created file
DNS request
Enabling autorun for a service
Downloading the 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:
96 / 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
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: Hurricane Panda Activity
Uses cmd line tools excessively to alter registry or file data
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 421291 Sample: Q3AIPiOtFb.exe Startdate: 22/05/2021 Architecture: WINDOWS Score: 96 54 Antivirus detection for dropped file 2->54 56 Multi AV Scanner detection for dropped file 2->56 58 Multi AV Scanner detection for submitted file 2->58 60 2 other signatures 2->60 10 Q3AIPiOtFb.exe 4 2->10         started        13 rdpdr.sys 2->13         started        process3 signatures4 64 Bypasses PowerShell execution policy 10->64 15 powershell.exe 40 10->15         started        process5 file6 42 C:\Windows\Branding\mediasvc.png, PE32+ 15->42 dropped 44 C:\Windows\Branding\mediasrv.png, PE32+ 15->44 dropped 46 Uses cmd line tools excessively to alter registry or file data 15->46 48 Queries sensitive service information (via WMI, WIN32_SERVICE, often done to detect sandboxes) 15->48 50 Adds a new user with administrator rights 15->50 52 Powershell drops PE file 15->52 19 reg.exe 15->19         started        22 cmd.exe 15->22         started        24 powershell.exe 15->24         started        26 7 other processes 15->26 signatures7 process8 signatures9 62 Creates a Windows Service pointing to an executable in C:\Windows 19->62 28 cmd.exe 22->28         started        30 conhost.exe 24->30         started        32 conhost.exe 26->32         started        34 conhost.exe 26->34         started        36 net1.exe 26->36         started        process10 process11 38 net.exe 28->38         started        process12 40 net1.exe 38->40         started       
Threat name:
Win64.Trojan.WinGoGoCLR
Status:
Malicious
First seen:
2021-05-21 00:14:42 UTC
AV detection:
19 of 29 (65.52%)
Threat level:
  5/5
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
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
ServHelper
Malware Config
Dropper Extraction:
https://raw.githubusercontent.com/sqlitey/sqlite/master/speed.ps1
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Rule name:golang
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:Warp
Author:Seth Hardy
Description:Warp
Rule name:WarpStrings
Author:Seth Hardy
Description:Warp Identifying Strings
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

ServHelper

Executable exe 6966ad7c975ddb2bddcd4b4ed59fbf594ea0efbf2ecf5379cb288a861ad135c6

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-05-22 21:28:42 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [B0009] Anti-Behavioral Analysis::Virtual Machine Detection
1) [C0002.014] Communication Micro-objective::Read Header::HTTP Communication
2) [C0027.001] Cryptography Micro-objective::AES::Encrypt Data
3) [C0027.009] Cryptography Micro-objective::RC4::Encrypt Data
4) [C0021.004] Cryptography Micro-objective::RC4 PRGA::Generate Pseudo-random Sequence
5) [C0019] Data Micro-objective::Check String
6) [C0032.001] Data Micro-objective::CRC32::Checksum
7) [C0026.001] Data Micro-objective::Base64::Encode Data
8) [C0026.002] Data Micro-objective::XOR::Encode Data
9) [C0030.005] Data Micro-objective::FNV::Non-Cryptographic Hash
10) [C0030.001] Data Micro-objective::MurmurHash::Non-Cryptographic Hash
13) [C0052] File System Micro-objective::Writes File