MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c94cca2c1e58461023c08ac630cb28cb0940566373c8fa988c480736597a8840. 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


NetWire


Vendor detections: 15


Maldoc score: 17


Intelligence 15 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c94cca2c1e58461023c08ac630cb28cb0940566373c8fa988c480736597a8840
SHA3-384 hash: eca7f09f75f2ac31677d0c361a4c950bc5658a35687f66db33195b6af7243136bb1399a5a866274e505486ba61ad2e16
SHA1 hash: af5ef23dbcc31847788d1a2522b689a8dfd0f124
MD5 hash: 8588c1999a06ff9c06d12fee925b9018
humanhash: kitten-quiet-orange-california
File name:invoice_78336.xlsm
Download: download sample
Signature NetWire
Create hunting rule
File size:43'139 bytes
First seen:2023-01-24 08:07:54 UTC
Last seen:Never
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 768:7lvRPlvHssndawBIJYfTH+niSpPvDH7iv+nW4FFiKk/f0qtM2CHWRQ+nYANm:ZvnvHTdawG1BxT7iv+PFFi3/8qahHWt+
TLSH T1BF13DF2CDFD98A14DF8B90F4590F78A98196BD518281DF4F0F29F24E0189C90532BEAF
TrID 42.2% (.XLAM) Excel Macro-enabled Open XML add-in (83500/1/13)
29.1% (.XLSM) Excel Microsoft Office Open XML Format document (with Macro) (57500/1/12)
17.2% (.XLSX) Excel Microsoft Office Open XML Format document (34000/1/7)
8.8% (.ZIP) Open Packaging Conventions container (17500/1/4)
2.0% (.ZIP) ZIP compressed archive (4000/1)
Reporter abuse_ch
Tags:NetWire xlsm


Avatar
abuse_ch
Payload URL:
http://198.23.172.90/statement.exe

Office OLE Information

This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE id
Maldoc score: 17
OLE dump

MalwareBazaar was able to identify 8 sections in this file using oledump:

Section IDSection sizeSection name
A1539 bytesPROJECT
A292 bytesPROJECTwm
A3173 bytesVBA/Learn more
A4168 bytesVBA/Start
A5631 bytesVBA/ThisWorkbook
A67 bytesVBA/_VBA_PROJECT
A7251 bytesVBA/dir
OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

TypeKeywordDescription
AutoExecWorkbook_OpenRuns when the Excel Workbook is opened
IOC198.23.172.90IPv4 address
IOCstatement.exeExecutable file name
SuspiciousShellMay run an executable file or a system command
SuspiciousWScript.ShellMay run an executable file or a system command
SuspiciouspowershellMay run PowerShell commands
SuspiciousexecutionpolicyMay run PowerShell commands
SuspiciousStart-ProcessMay run an executable file or a system command using PowerShell
SuspiciousCreateObjectMay create an OLE object
SuspiciousExecMay run an executable file or a system
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence

File Origin
# of uploads :
1
# of downloads :
284
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
netwire
Create hunting rule
ID:
1
File name:
invoice_78336_7.xlsm
Verdict:
Malicious activity
Analysis date:
2023-01-24 06:06:32 UTC
Tags:
macros macros-on-open loader trojan netwire
Link:
https://app.any.run/tasks/29e154a9-1424-432c-b280-14f6502c498d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/vnd.ms-excel.sheet.macroEnabled.12
Has a screenshot:
False
Contains macros:
True
Detection:
NetWire
Create hunting rule
Link:
https://www.capesandbox.com/analysis/356273/
Detection(s):
SecuriteInfo.com.Office.Macro-13.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.PublicDottedQuadDLrRunLikeHell.20210223.UNOFFICIAL
Create hunting rule

Xls.Dropper.EPPlus-9802867-2
Create hunting rule

TwinWave.EvilDoc.OkayLureDefenderXL.20220418.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending a custom TCP request
Creating a window
Сreating synchronization primitives
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process by exploiting the app vulnerability
Sending an HTTP GET request to an infection source
Result
Verdict:
Malicious
File Type:
Excel File with Macro
Link:
https://app.docguard.net/c94cca2c1e58461023c08ac630cb28cb0940566373c8fa988c480736597a8840/results/dashboard
Payload URLs
URL
File name
198.23.172.90
ThisWorkbook
Behaviour
BlacklistAPI detected
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
macros macros-on-open packed phishing powershell
Link:
https://www.filescan.io/uploads/63cf91e5528134caf0431f8d/reports/797185a3-56aa-4bb1-8413-8c50aa22d406/overview
Label:
Malicious
Suspicious Score:
9.4/10
Score Malicious:
95%
Score Benign:
5%
Link:
https://www.malware.ai/gui/files/?id=76cc01cf-7276-4fbd-aeff-1ef0a950a062
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/c94cca2c1e58461023c08ac630cb28cb0940566373c8fa988c480736597a8840
Details
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
IPv4 Dotted Quad URL
A URL was detected referencing a direct IP address, as opposed to a domain name.
Hidden Powershell
Detected a pivot to Powershell that utilizes commonly nefarious attributes such as '-windowstyle hidden'.
Powershell in Macro
Detected a macro that may utilize Powershell. Such pivots are commonly found in malware.
Macro Contains Suspicious String
Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...
Malicious Scriptlet 7 of 7
Detected a malicious pivot typically seen during the 'file-less' pivot commonly seen in malware carriers.
External Relationship Element
Document contains an externally hosted relationship, which fetches further content.
Result
Threat name:
NetWire
Create hunting rule
Detection:
malicious
Classification:
expl.evad.troj
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1157727
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Document contains an embedded VBA macro with suspicious strings
Document exploit detected (process start blacklist hit)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Powershell drops PE file
Sigma detected: NetWire
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Netwire RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 790465 Sample: invoice_78336.xlsm Startdate: 24/01/2023 Architecture: WINDOWS Score: 100 57 Snort IDS alert for network traffic 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 Antivirus / Scanner detection for submitted sample 2->61 63 14 other signatures 2->63 9 EXCEL.EXE 25 31 2->9         started        13 ARvNQxJkzcNg.exe 5 2->13         started        process3 file4 49 C:\Users\user\Desktop\~$invoice_78336.xlsm, data 9->49 dropped 73 Suspicious powershell command line found 9->73 15 powershell.exe 15 18 9->15         started        75 Multi AV Scanner detection for dropped file 13->75 77 Machine Learning detection for dropped file 13->77 79 Injects a PE file into a foreign processes 13->79 20 schtasks.exe 13->20         started        22 ARvNQxJkzcNg.exe 13->22         started        signatures5 process6 dnsIp7 53 198.23.172.90, 49706, 80 AS-COLOCROSSINGUS United States 15->53 43 C:\Users\user\AppData\Local\...\tmpC555.exe, PE32 15->43 dropped 55 Powershell drops PE file 15->55 24 tmpC555.exe 6 15->24         started        28 conhost.exe 15->28         started        30 conhost.exe 20->30         started        file8 signatures9 process10 file11 45 C:\Users\user\AppData\...\ARvNQxJkzcNg.exe, PE32 24->45 dropped 47 C:\Users\user\AppData\Local\...\tmp4F41.tmp, XML 24->47 dropped 65 Multi AV Scanner detection for dropped file 24->65 67 Machine Learning detection for dropped file 24->67 69 Uses schtasks.exe or at.exe to add and modify task schedules 24->69 71 2 other signatures 24->71 32 tmpC555.exe 2 24->32         started        35 powershell.exe 21 24->35         started        37 schtasks.exe 1 24->37         started        signatures12 process13 dnsIp14 51 212.193.30.230, 3363, 49712, 49713 SPD-NETTR Russian Federation 32->51 39 conhost.exe 35->39         started        41 conhost.exe 37->41         started        process15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c94cca2c1e58461023c08ac630cb28cb0940566373c8fa988c480736597a8840/
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zfgmula6lbdbai6arlddbszizmeuavtdopepvgemjadtmwl2rbaa._file
Result
Malware family:
netwire
Create hunting rule
Score:
  10/10
Tags:
family:netwire botnet macro rat stealer
Link:
https://tria.ge/reports/230124-j1kclsab65/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
NetWire RAT payload
Netwire
Process spawned unexpected child process
Malware Config
C2 Extraction:
212.193.30.230:3363
Malware family:
Netwire
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c94cca2c1e58/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c94cca2c1e58461023c08ac630cb28cb0940566373c8fa988c480736597a8840

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:informational_win_ole_protected
Create hunting rule
Author:Jeff White (karttoon@gmail.com) @noottrak
Description:Identify OLE Project protection within documents.
Rule name:malware_shellcode_hash
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:vbaproject_bin
Create hunting rule
Author:CD_R0M_
Description:{76 62 61 50 72 6f 6a 65 63 74 2e 62 69 6e} is hex for vbaproject.bin. Macros are often used by threat actors. Work in progress - Ran out of time

File information

The table below shows additional information about this malware sample such as delivery method and external references.

  
URLhaus
https://urlhaus.abuse.ch/url/2516972/
Cape
Cape
https://www.capesandbox.com/analysis/356273/

Comments