MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0c676c2e5e20df05118d77d43abdf26828b2780b06886831a705483432b86e78. 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


GuLoader


Vendor detections: 12


Maldoc score: 4


Intelligence 12 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0c676c2e5e20df05118d77d43abdf26828b2780b06886831a705483432b86e78
SHA3-384 hash: cc39cb9679ce1e6e08fb8a58433a2c43e42c3cb6167c419952b0b132add3984582f3d6c8dad9450e135b42c4fe9b6c03
SHA1 hash: a8e0c1be6196fc44c275350d075adc11b713de00
MD5 hash: 943911ef4de9075ad722e7efb921de51
humanhash: mississippi-carpet-emma-fanta
File name:Invoices.xls
Download: download sample
Signature GuLoader
Create hunting rule
File size:381'952 bytes
First seen:2023-12-19 07:07:50 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 6144:kSgunJQ4YlLSmmeHZMhD6wM3XALQuEo0Pkf7uoKlsl79sC9d6p9R+aXI/Mbs6+/:kS5JWQmmme6v3QLQuEnkDKlsl74b+a4i
TLSH T17A8402007608A99DE2475BFAA8B2B18F500CFC377BC5A5CB6AC4B30E8976FB75123515
TrID 46.5% (.XLS) Microsoft Excel sheet (alternate) (56500/1/4)
26.7% (.XLS) Microsoft Excel sheet (32500/1/3)
20.1% (.XLS) Microsoft Excel sheet (alternate) (24500/1/2)
6.5% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter abuse_ch
Tags:cve-2017-0199 GuLoader xls

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: 4
OLE dump

MalwareBazaar was able to identify 21 sections in this file using oledump:

Section IDSection sizeSection name
1114 bytesCompObj
2244 bytesDocumentSummaryInformation
3200 bytesSummaryInformation
494 bytesMBD0001D826/CompObj
562 bytesMBD0001D826/Ole
620409 bytesMBD0001D826/CONTENTS
794 bytesMBD0001D827/CompObj
862 bytesMBD0001D827/Ole
9141190 bytesMBD0001D827/CONTENTS
10113 bytesMBD0001D828/CompObj
1122250 bytesMBD0001D828/Package
12468 bytesMBD0001D829/Ole
13179690 bytesWorkbook
14525 bytes_VBA_PROJECT_CUR/PROJECT
15104 bytes_VBA_PROJECT_CUR/PROJECTwm
16977 bytes_VBA_PROJECT_CUR/VBA/Sheet1
17977 bytes_VBA_PROJECT_CUR/VBA/Sheet2
18977 bytes_VBA_PROJECT_CUR/VBA/Sheet3
19985 bytes_VBA_PROJECT_CUR/VBA/ThisWorkbook
202644 bytes_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
21553 bytes_VBA_PROJECT_CUR/VBA/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
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 :
328
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/468407/
Detection(s):
Sanesecurity.Badmacro.Xls.BadUsr1.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Trojan.VBA.Agent-16.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Trojan.Script.4681.26133.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Other.Malware-gen.25106.3990.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.OleWishDottedQuadPolicykill.20220908.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Creating a file
DNS request
Sending a custom TCP request
Sending an HTTP GET request to an infection source by exploiting the app vulnerability
Launching a process by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Link:
https://app.docguard.net/0c676c2e5e20df05118d77d43abdf26828b2780b06886831a705483432b86e78/results/dashboard
Payload URLs
URL
File name
http://172.245.208.4/wg/Microsoftdigitalwallettechnologydevelopedrecentlyforsecuritypurposetoprotectcustomer.Doc
Embedded Ole
Behaviour
SuspiciousRTF detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
89%
Tags:
macros sload
Link:
https://www.filescan.io/uploads/65814158ffafd83ebc948507/reports/558fb864-1235-46dd-a3ec-abb2efd5f09b/overview
Verdict:
Malicious
Labled as:
CVE-2017-0199
Link:
https://www.hybrid-analysis.com/sample/0c676c2e5e20df05118d77d43abdf26828b2780b06886831a705483432b86e78
Label:
Benign
Suspicious Score:
3.4/10
Score Malicious:
35%
Score Benign:
65%
Link:
https://www.malware.ai/gui/files/?id=ff4f7a09-2eb2-4d66-8fb2-2eff1886fe41
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/0c676c2e5e20df05118d77d43abdf26828b2780b06886831a705483432b86e78
Details
Document With Few Pages
Document contains between one and three pages of content. Most malicious documents are sparse in page count.
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1364336
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
DLL side loading technique detected
Document embeds suspicious OLE2 link
Excel sheet contains many unusual embedded objects
Found malware configuration
Installs new ROOT certificates
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Microsoft Office drops suspicious files
Microsoft Office launches external ms-search protocol handler (WebDAV)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Office equation editor drops PE file
Office equation editor establishes network connection
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Office viewer loads remote template
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Searches for Windows Mail specific files
Shellcode detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Snort IDS alert for network traffic
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Very long command line found
Writes to foreign memory regions
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1364336 Sample: Invoices.xls Startdate: 19/12/2023 Architecture: WINDOWS Score: 100 92 Snort IDS alert for network traffic 2->92 94 Multi AV Scanner detection for domain / URL 2->94 96 Found malware configuration 2->96 98 16 other signatures 2->98 12 EQNEDT32.EXE 12 2->12         started        16 WINWORD.EXE 346 48 2->16         started        18 EXCEL.EXE 58 60 2->18         started        21 AcroRd32.exe 27 2->21         started        process3 dnsIp4 58 C:\Users\user\AppData\Roaming\wlanext.exe, PE32 12->58 dropped 60 C:\Users\user\AppData\...\wlanext[1].exe, PE32 12->60 dropped 108 Office equation editor establishes network connection 12->108 110 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 12->110 23 wlanext.exe 41 12->23         started        62 C:\Users\user\...\wg on 172.245.208.4.url, MS 16->62 dropped 64 Microsoftdigitalwa...ectcustomer.Doc.url, MS 16->64 dropped 66 ~WRF{EE95E77B-ACBE...D-6EE3EADDC7E9}.tmp, Composite 16->66 dropped 68 C:\Users\user\AppData\Local\...\6B4D93A9.doc, ISO-8859 16->68 dropped 112 Microsoft Office launches external ms-search protocol handler (WebDAV) 16->112 114 Office viewer loads remote template 16->114 116 Microsoft Office drops suspicious files 16->116 80 172.245.208.4, 49164, 49165, 49166 AS-COLOCROSSINGUS United States 18->80 70 Microsoftdigitalwa...tectcustomer[1].doc, ISO-8859 18->70 dropped 27 RdrCEF.exe 21->27         started        file5 signatures6 process7 file8 54 C:\Users\user\AppData\Local\...\nsv95DA.tmp, data 23->54 dropped 56 C:\Users\user\AppData\Local\...\Bridleway.Bli, data 23->56 dropped 104 Machine Learning detection for dropped file 23->104 29 powershell.exe 5 23->29         started        signatures9 process10 signatures11 118 Suspicious powershell command line found 29->118 120 Very long command line found 29->120 32 powershell.exe 2 29->32         started        process12 signatures13 88 Searches for Windows Mail specific files 32->88 90 Writes to foreign memory regions 32->90 35 wab.exe 9 32->35         started        39 wab.exe 32->39         started        process14 dnsIp15 82 www.synergyinnovationgroup.com 35->82 84 synergyinnovationgroup.com 65.60.36.22, 443, 49172 SINGLEHOP-LLCUS United States 35->84 100 Installs new ROOT certificates 35->100 102 Maps a DLL or memory area into another process 35->102 41 jVWyyqWcnIgsxyMlwoZckbCHd.exe 35->41 injected signatures16 process17 signatures18 106 Maps a DLL or memory area into another process 41->106 44 auditpol.exe 41->44         started        process19 dnsIp20 86 www.sqlite.org 45.33.6.223, 49174, 80 LINODE-APLinodeLLCUS United States 44->86 72 C:\Users\user\AppData\Local\...\sqlite3.dll, PE32 44->72 dropped 122 Tries to steal Mail credentials (via file / registry access) 44->122 124 Tries to harvest and steal browser information (history, passwords, etc) 44->124 126 Maps a DLL or memory area into another process 44->126 128 3 other signatures 44->128 49 jVWyyqWcnIgsxyMlwoZckbCHd.exe 44->49 injected 52 firefox.exe 44->52         started        file21 signatures22 process23 dnsIp24 74 www.caffleoraret.cyou 109.123.121.243, 49179, 49180, 49181 UK2NET-ASGB United Kingdom 49->74 76 www.ageingisthedisease.com 49->76 78 2 other IPs or domains 49->78
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/0c676c2e5e20df05118d77d43abdf26828b2780b06886831a705483432b86e78/
Threat name:
Document-Excel.Exploit.CVE-2017-0199
Create hunting rule
Status:
Malicious
First seen:
2023-12-19 02:45:57 UTC
File Type:
Document
Extracted files:
66
AV detection:
13 of 23 (56.52%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=brtwyls6edpqkemno7kdvppsnaule6ala2egqmnhavedimvynz4a._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/231219-hx74tsghc2/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
NSIS installer
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Abuses OpenXML format to download file from external location
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0c676c2e5e20/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/0c676c2e5e20df05118d77d43abdf26828b2780b06886831a705483432b86e78

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/468407/

Comments