MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c41e8de18571125db4a50a2180f528d5b78aaeeabbb1506d9aa57ec53a484890. 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


SilentBuilder


Vendor detections: 10


Maldoc score: 7


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c41e8de18571125db4a50a2180f528d5b78aaeeabbb1506d9aa57ec53a484890
SHA3-384 hash: a534dec873b12c42b655a274f7c39042ea0af0ce1799b6fa80a01571c82e73493f6af5c2916e158e6807f32fb951b9f1
SHA1 hash: 3c27e31125dfc808f66c5ab2937b9b0d3f599c76
MD5 hash: 27ac38fb2f897eb61e56d9c448ea0fc0
humanhash: august-potato-foxtrot-cup
File name:Jamaica Inn, Ocho Rios.xls
Download: download sample
Signature SilentBuilder
Create hunting rule
File size:40'960 bytes
First seen:2022-05-11 17:26:16 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 768:pkZKpb8rGYrMPe3q7Q0XV5xtezEs/68/dgACCBn9kC+xbwcZfqG9tMvcVi1lw:p+Kpb8rGYrMPe3q7Q0XV5xtezEsi8/dY
TLSH T1F503844ABA5AC95CFA25C73548E743E9B362FC101F6B0B873645B3657FF49A04A0360B
TrID 80.2% (.XLS) Microsoft Excel sheet (32500/1/3)
19.7% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter pr0xylife
Tags:Emotet epoch4 SilentBuilder 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: 7
OLE dump

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

Section IDSection sizeSection name
14096 bytesDocumentSummaryInformation
24096 bytesSummaryInformation
330920 bytesWorkbook
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
AutoExecAuto_OpenRuns when the Excel Workbook is opened
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
SuspiciousBase64 StringsBase64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
SuspiciousXLM macroXLM macro found. It may contain malicious code

Intelligence

File Origin
# of uploads :
1
# of downloads :
376
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Malicious
File type:
application/vnd.ms-excel
Has a screenshot:
False
Contains macros:
True
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/269752/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
DNS request
Creating a file
Creating a process with a hidden window
Launching a process
Moving a recently created file
Sending an HTTP GET request
Launching a process by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Legacy Excel File
Link:
https://app.docguard.net/c41e8de18571125db4a50a2180f528d5b78aaeeabbb1506d9aa57ec53a484890/results/dashboard
Payload URLs
URL
File name
easiercommunications.com
WorkBook
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe greyware macros macros-on-open packed regsvr32
Link:
https://www.filescan.io/uploads/627bf1bebd5c76586e2e6cb2/reports/f9d1c89f-7b80-4f56-aba5-7424cfe18577/overview
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/c41e8de18571125db4a50a2180f528d5b78aaeeabbb1506d9aa57ec53a484890
Details
Autostarting Excel Macro Sheet
Excel contains Macrosheet logic that will trigger automatically upon document open.
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c41e8de18571125db4a50a2180f528d5b78aaeeabbb1506d9aa57ec53a484890/
Threat name:
Document-Office.Trojan.Emotet
Create hunting rule
Status:
Malicious
First seen:
2022-05-11 17:27:05 UTC
File Type:
Document
Extracted files:
9
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yqpi3ymfoejf3nffbiqyb5ji2w3yvlxkxoyva3m2uv7mkosijcia._file
Result
Malware family:
emotet
Create hunting rule
Score:
  10/10
Tags:
family:emotet banker macro trojan xlm
Link:
https://tria.ge/reports/220511-v1d2daghhm/
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Loads dropped DLL
Downloads MZ/PE file
Emotet
Process spawned unexpected child process
Malware Config
Dropper Extraction:
http://easiercommunications.com/wp-content/w/
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/c41e8de18571125db4a50a2180f528d5b78aaeeabbb1506d9aa57ec53a484890

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:Excel_Hidden_Macro_Sheet
Create hunting rule
Rule name:Qbot
Create hunting rule
Author:Dhanunjaya
Description:Yara Rule to Detect Qbot
Rule name:SUSP_Excel4Macro_AutoOpen
Create hunting rule
Author:John Lambert @JohnLaTwC
Description:Detects Excel4 macro use with auto open / close

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/269752/

Comments