MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c88b08ee12c176e941f6761c91fdfaa4674b38ef830f5a94c1ddd9f8cdfed575. 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



Threat unknown


Vendor detections: 17


Intelligence 17 IOCs YARA 4 File information Comments

SHA256 hash: c88b08ee12c176e941f6761c91fdfaa4674b38ef830f5a94c1ddd9f8cdfed575
SHA3-384 hash: 329f188910ecda624a3acc20ec03bd70b694164f00cb9e57150302e5a7e436dffef69b53a28942b4ebc79f4b1efe0f11
SHA1 hash: fa6e272484b8ce08398aeabe1c384051feec924a
MD5 hash: 1486abd16d92657ad2ca6ab95aec47be
humanhash: utah-violet-river-pennsylvania
File name:Invoice No. AT-254614 dated November 30, 2025.xlam
Download: download sample
File size:3'044'022 bytes
First seen:2025-12-10 05:18:41 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 49152:GOc2yD4lTP1IWPRzLsdGAspFeOCNZO+BIbLrV3ZGXCcInioo37KwLE8sDxAei:GoyEFP1IEvskFKNIi6LJZEd33LtsDDi
TLSH T11DE502BB98B269836B904563E70F2C1A335B19D43B54D342EA41949C6F7B1D38F92B33
TrID 61.2% (.XLSX) Excel Microsoft Office Open XML Format document (34000/1/7)
31.5% (.ZIP) Open Packaging Conventions container (17500/1/4)
7.2% (.ZIP) ZIP compressed archive (4000/1)
Magika xlsx
Reporter abuse_ch
Tags:CVE-2017-11882 xlam xlsx

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 dump

MalwareBazaar was able to identify 3 sections in this file using oledump:

Section IDSection sizeSection name
A12931748 bytesOLe10nATIvE
A20 bytesFCy0Jozdg

Intelligence


File Origin
# of uploads :
1
# of downloads :
111
Origin country :
SE SE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Invoice No. AT-254614 dated November 30, 2025.xlam
Verdict:
No threats detected
Analysis date:
2025-12-10 05:20:30 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
97.4%
Tags:
vmdetect emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for synchronization primitives
Launching a process
DNS request
Sending an HTTP GET request
Creating a file in the %AppData% directory
Sending a custom TCP request
Сreating synchronization primitives
Connection attempt by exploiting the app vulnerability
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
OOXML Excel File with Embedding Objects
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit masquerade
Label:
Benign
Suspicious Score:
4.3/10
Score Malicious:
44%
Score Benign:
56%
Verdict:
Malicious
File Type:
xlam
First seen:
2025-12-10T02:26:00Z UTC
Last seen:
2025-12-11T08:26:00Z UTC
Hits:
~100
Detections:
HEUR:Exploit.MSOffice.CVE-2018-0802.gen Exploit.MSOffice.CVE-2018-0802.b Exploit.MSOffice.CVE-2017-11882.sb Trojan.Win32.Shelma.sb not-a-virus:Downloader.Win32.TorLoader.cm Downloader.TorLoader.UDP.C&C
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
64 / 100
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Verdict:
inconclusive
YARA:
3 match(es)
Tags:
Office Document
Verdict:
Malicious
Threat:
Exploit.MSOffice.CVE-2018-0802
Threat name:
Document-Office.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2025-12-10 05:19:19 UTC
File Type:
Document
Extracted files:
16
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  1/10
Tags:
persistence ransomware
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Verdict:
Suspicious
Tags:
exploit
YARA:
INDICATOR_OLE_EXPLOIT_CVE_2017_11882_1
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:CP_Script_Inject_Detector
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:FreddyBearDropper
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:Warp
Author:Seth Hardy
Description:Warp
Rule name:WarpStrings
Author:Seth Hardy
Description:Warp Identifying Strings

File information


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

Comments