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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e64ea07de3fd1b995c122287c1107eb44d0f887b08f21d8dfa84ecccbfc57295. 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: 14


Intelligence 14 IOCs YARA 4 File information Comments

SHA256 hash: e64ea07de3fd1b995c122287c1107eb44d0f887b08f21d8dfa84ecccbfc57295
SHA3-384 hash: 490ffb7678acc2c086586e49b54a0a9c5a90ba98311aa470658c130956ef36fbdb073ca10ba9e87f917dcaa90417fe42
SHA1 hash: dc785be0c4430bfc5b507255f892bf30134a02b6
MD5 hash: 355d6c898d25a33b132d46707f88e48d
humanhash: utah-virginia-tennessee-seventeen
File name:e64ea07de3fd1b995c122287c1107eb44d0f887b08f21d8dfa84ecccbfc57295.bin
Download: download sample
File size:4'042'752 bytes
First seen:2026-02-25 05:45:06 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/vnd.ms-excel
ssdeep 49152:+Ce8URnPYHY43saSkleDFvCH1pjPh4ScRbI0/JP38Gw4jMXhku8Wx0y+tOonhBWV:+CePRffvlEFJ4ZbIoJADxMFlhB
TLSH T1EF1602A0D55A8B92F063D4BC61D4B9D204353E136AD80CE1E37F2A089FBF8B66655F4C
TrID 34.9% (.XLS) Microsoft Excel sheet (32500/1/3)
30.1% (.XLS) Microsoft Excel sheet (alternate) (28000/1/3)
26.3% (.XLS) Microsoft Excel sheet (alternate) (24500/1/2)
8.6% (.) Generic OLE2 / Multistream Compound (8000/1)
Magika xls
Reporter KodaDr
Tags:muddywater TrojanDropper vba xls xlsx


Avatar
KodaDr
#VBA/TrojanDropper #Muddywater #xls
https://www.group-ib.com/blog/muddywater-operation-olalampo/

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 20 sections in this file using oledump:

Section IDSection sizeSection name
1108 bytesCompObj
2264 bytesDocumentSummaryInformation
3208 bytesSummaryInformation
468 bytesCtls
53536510 bytesWorkbook
6687 bytes_VBA_PROJECT_CUR/PROJECT
792 bytes_VBA_PROJECT_CUR/PROJECTwm
897 bytes_VBA_PROJECT_CUR/UserForm1/CompObj
9292 bytes_VBA_PROJECT_CUR/UserForm1/VBFrame
1086 bytes_VBA_PROJECT_CUR/UserForm1/f
11446520 bytes_VBA_PROJECT_CUR/UserForm1/o
121150 bytes_VBA_PROJECT_CUR/VBA/Sheet1
137617 bytes_VBA_PROJECT_CUR/VBA/ThisWorkbook
141180 bytes_VBA_PROJECT_CUR/VBA/UserForm1
154082 bytes_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
162514 bytes_VBA_PROJECT_CUR/VBA/__SRP_0
17577 bytes_VBA_PROJECT_CUR/VBA/__SRP_1
18943 bytes_VBA_PROJECT_CUR/VBA/__SRP_2
19592 bytes_VBA_PROJECT_CUR/VBA/__SRP_3
20841 bytes_VBA_PROJECT_CUR/VBA/dir

Intelligence


File Origin
# of uploads :
1
# of downloads :
291
Origin country :
RU RU
Vendor Threat Intelligence
Malware configuration found for:
MSO
Details
MSO
extracted VBA Macros and, if observed, MS-OFORM variables/data are added to the knowledge base for usage in later parsing of the Macros
Malware family:
n/a
ID:
1
File name:
e64ea07de3fd1b995c122287c1107eb44d0f887b08f21d8dfa84ecccbfc57295.bin
Verdict:
Suspicious activity
Analysis date:
2026-02-25 05:45:37 UTC
Tags:
macros macros-on-open

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Legit
File type:
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Has a screenshot:
False
Contains macros:
False
Verdict:
Malicious
Score:
99.1%
Tags:
vmdetect office macro micro
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Behaviour
BlacklistAPI detected
Document image
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm dropper evasive macros macros-on-open masquerade obfuscated
Gathering data
Verdict:
Malicious
File Type:
xls
First seen:
2026-02-11T11:53:00Z UTC
Last seen:
2026-02-13T09:41:00Z UTC
Hits:
~10
Verdict:
Malware
YARA:
7 match(es)
Tags:
Corrupted Office Document
Threat name:
Document-Office.Dropper.Muddywater
Status:
Malicious
First seen:
2026-02-14 02:20:00 UTC
File Type:
Document
Extracted files:
27
AV detection:
19 of 38 (50.00%)
Threat level:
  3/5
Verdict:
malicious
Label(s):
http_vip
Result
Malware family:
n/a
Score:
  7/10
Tags:
macro macro_on_action
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Executes dropped EXE
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:FreddyBearDropper
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:informational_win_ole_protected
Author:Jeff White (karttoon@gmail.com) @noottrak
Description:Identify OLE Project protection within documents.
Rule name:TA505_Maldoc_21Nov_2
Author:Arkbird_SOLG
Description:invitation (1).xls
Reference:https://twitter.com/58_158_177_102/status/1197432303057637377
Rule name:vmdetect
Author:nex
Description:Possibly employs anti-virtualization techniques

File information


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

Comments