MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c2748f872784ed3b7b9b2c51993d861a5283d3ca17579d367149031b2e479d82. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c2748f872784ed3b7b9b2c51993d861a5283d3ca17579d367149031b2e479d82
SHA3-384 hash: b9edc529523d19457d2475f15b376c3a41459f3b00cf709a152857e33707f170f541e18679ce5d2373d328f0563beacc
SHA1 hash: b6b977dbc86b6929646e8a0b0bb77b6768b124f9
MD5 hash: 08a384b9655fb403506ef9a621d2fa01
humanhash: snake-orange-cat-green
File name:08a384b9655fb403506ef9a621d2fa01.exe
Download: download sample
Signature ServHelper
Create hunting rule
File size:4'510'720 bytes
First seen:2021-07-09 18:31:53 UTC
Last seen:2021-07-09 19:47:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 98304:YJqsJOQ+rilchmdfOv/22HWsnN2h+q7w0LMudpQAQoXTy9Jc:YJ9OAeo2v/VHdN2cq72udmAQoT
Threatray 126 similar samples on MalwareBazaar
TLSH T11B26336DB65172CFC8CBC8BA8AE11C75EC1034A3135F5253E483229DAB5DA87DF618B1
Reporter abuse_ch
Tags:exe ServHelper

Intelligence

File Origin
# of uploads :
2
# of downloads :
1'375
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
08a384b9655fb403506ef9a621d2fa01.exe
Verdict:
No threats detected
Analysis date:
2021-07-09 18:45:01 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/46e39178-1032-4f66-a7ea-fc632c2fcf6a

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/170728/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.46602279.32150.8135.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/d7fd4cfc-2714-4f96-a34c-d5af3ea632bf
Result
Threat name:
SERVHELPER
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/814173
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 446584 Sample: QMj2BeRyBi.exe Startdate: 09/07/2021 Architecture: WINDOWS Score: 100 66 Antivirus detection for URL or domain 2->66 68 Antivirus detection for dropped file 2->68 70 Multi AV Scanner detection for dropped file 2->70 72 6 other signatures 2->72 11 QMj2BeRyBi.exe 3 2->11         started        15 rdpdr.sys 2->15         started        process3 file4 60 C:\Users\user\AppData\...\QMj2BeRyBi.exe.log, ASCII 11->60 dropped 84 Writes to foreign memory regions 11->84 86 Allocates memory in foreign processes 11->86 88 Modifies the context of a thread in another process (thread injection) 11->88 90 Injects a PE file into a foreign processes 11->90 17 vbc.exe 4 11->17         started        signatures5 process6 signatures7 64 Bypasses PowerShell execution policy 17->64 20 powershell.exe 46 17->20         started        process8 file9 54 C:\Windows\Branding\mediasvc.png, PE32+ 20->54 dropped 56 C:\Windows\Branding\mediasrv.png, PE32+ 20->56 dropped 58 C:\Users\user\AppData\...\j4mx3uqz.cmdline, UTF-8 20->58 dropped 74 Uses cmd line tools excessively to alter registry or file data 20->74 76 Queries sensitive service information (via WMI, WIN32_SERVICE, often done to detect sandboxes) 20->76 78 Powershell drops PE file 20->78 24 powershell.exe 20->24         started        27 reg.exe 20->27         started        29 cmd.exe 20->29         started        31 8 other processes 20->31 signatures10 process11 file12 80 Detected SERVHELPER 24->80 34 conhost.exe 24->34         started        82 Creates a Windows Service pointing to an executable in C:\Windows 27->82 36 cmd.exe 29->36         started        62 C:\Users\user\AppData\Local\...\j4mx3uqz.dll, PE32 31->62 dropped 38 cmd.exe 31->38         started        40 cvtres.exe 31->40         started        42 conhost.exe 31->42         started        44 2 other processes 31->44 signatures13 process14 process15 46 net.exe 36->46         started        48 net.exe 38->48         started        process16 50 net1.exe 46->50         started        52 net1.exe 48->52         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c2748f872784ed3b7b9b2c51993d861a5283d3ca17579d367149031b2e479d82/
Threat name:
ByteCode-MSIL.Packed.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-07-09 08:26:20 UTC
AV detection:
17 of 29 (58.62%)
Threat level:
  1/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yj2i7bzhqtwtw643frizspmgdjjihu6kc5lz2ntrjebrwlshtwba._file
Verdict:
malicious
Similar samples:
57bd1d7a3ce9a10797575f75af56a675b3739ab5901e383a7870b17fa328ecb4
ServHelper
6966ad7c975ddb2bddcd4b4ed59fbf594ea0efbf2ecf5379cb288a861ad135c6
ServHelper
6eca26fcfabbb12c6a37eb689de222e75b31574dd25e7fd3d8b446d700c40133
ServHelper
7672dfbaa089b5f55f22e1bf1f9f985e65cc9166455c83637d3219c2c9eb4dff
ServHelper
80271a13696df77f092c3b6abce154f98e83f5840c64b610af7ae83cfe711482
ServHelper
b3f483f00e80c0777858e6795f9f13bce726ff8265ef3e8cd3602cf1711247a2
ServHelper
d4989171b0fe1cc05ae35c3ce1f779f1ed190cb194c68595586cad6694aa8e64
ServHelper
e479976218616ff4a1303a5e783d6034d06ee0e2c6e0fb9c7f4e42c0b794541f
ServHelper
e93ad362b1d92779ef40523def774c76cb59ee9bba560f88679063404a5999e9
ServHelper
+ 116 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-b3g87etxj6/
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:
c2748f872784ed3b7b9b2c51993d861a5283d3ca17579d367149031b2e479d82
MD5 hash:
08a384b9655fb403506ef9a621d2fa01
SHA1 hash:
b6b977dbc86b6929646e8a0b0bb77b6768b124f9
Link:
https://www.unpac.me/results/3bf1967f-41d5-4a85-8b6b-62e12a27e219/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.95
Link:
https://yomi.yoroi.company/submissions/c2748f872784ed3b7b9b2c51993d861a5283d3ca17579d367149031b2e479d82

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
Create hunting rule
Author:Seth Hardy
Description:Glasses family
Rule name:GlassesCode
Create hunting rule
Author:Seth Hardy
Description:Glasses code features
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
Rule name:susp_winsvc_upx
Create hunting rule
Author:SBousseaden
Description:broad hunt for any PE exporting ServiceMain API and upx packed
Rule name:win_servhelper_auto
Create hunting rule
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 c2748f872784ed3b7b9b2c51993d861a5283d3ca17579d367149031b2e479d82

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1436477/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/170728/

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