MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c19528ed237067fe58161fb601fdfbf29a6cc90bd2842a6315966d5ca76f956. 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: 11


Maldoc score: 11


Intelligence 11 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8c19528ed237067fe58161fb601fdfbf29a6cc90bd2842a6315966d5ca76f956
SHA3-384 hash: a390466504b6c4d52e323949e76d372ce2f76789692bd22cf7b82c24afd99a80140dcbdbbd4cb67fa741e8ca164c484f
SHA1 hash: 29a0d89344d8496b5d9557a35b9b529f96383f37
MD5 hash: 4bf987800ff8ab9d95f2438510c91685
humanhash: stream-triple-ohio-six
File name:mbcoin.doc1
Download: download sample
File size:85'504 bytes
First seen:2022-07-17 15:51:37 UTC
Last seen:Never
File type:Word file docx
MIME type:application/msword
ssdeep 1536:Ct3hB++eI2iHfbbQFCG/og7p/DUsOxrtFWVnB4WVPRVWVnBAWVnB9WVnRqO6VU1D:cB72izbQFCGN7pvoHWVnB4WVPRVWVnBe
TLSH T1D0834918B3D6CA11F1735A728DE7D2D57629BC1D6E2BC28B3184F74D2EB95208807F26
TrID 52.6% (.DOC) Microsoft Word document (30000/1/2)
33.3% (.DOC) Microsoft Word document (old ver.) (19000/1/2)
14.0% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter KdssSupport
Tags:docx


Avatar
KdssSupport
Uploaded with API

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: 11
OLE dump

MalwareBazaar was able to identify 15 sections in this file using oledump:

Section IDSection sizeSection name
1114 bytesCompObj
24096 bytesDocumentSummaryInformation
34096 bytesSummaryInformation
417939 bytes1Table
5461 bytesMacros/PROJECT
653 bytesMacros/PROJECTwm
7968 bytesMacros/VBA/ThisDocument
84300 bytesMacros/VBA/_VBA_PROJECT
93765 bytesMacros/VBA/__SRP_0
10122 bytesMacros/VBA/__SRP_1
111441 bytesMacros/VBA/__SRP_2
12156 bytesMacros/VBA/__SRP_3
133101 bytesMacros/VBA/bxh
141133 bytesMacros/VBA/dir
1537216 bytesWordDocument
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
AutoExecAutoOpenRuns when the Word document is opened
SuspiciousOpenMay open a file
SuspiciousOutputMay write to a file (if combined with Open)
SuspiciousShellMay run an executable file or a system command
SuspiciousChrMay attempt to obfuscate specific strings (use option --deobf to deobfuscate)
SuspiciousStrReverseMay attempt to obfuscate specific strings (use option --deobf to deobfuscate)

Intelligence

File Origin
# of uploads :
1
# of downloads :
472
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
mbcoin.doc
Verdict:
Malicious activity
Analysis date:
2022-07-17 09:29:29 UTC
Tags:
macros macros-on-open
Link:
https://app.any.run/tasks/2f2cb596-9600-4095-ad16-d2ef5fff49f3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/vnd.openxmlformats-officedocument.wordprocessingml.document
Has a screenshot:
False
Contains macros:
True
Detection(s):
TwinWave.EvilDoc.DOCXRSTRGOOD.CSCRIPT.REV.200317.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.AutoTriggerEvilMrFantasyM3.20200721.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.ICEDRustyCage.M2.20210510.UNOFFICIAL
Create hunting rule

Doc.Dropper.Ursnif-6864686-0
Create hunting rule

Sanesecurity.Badmacro.Doc.badver.UNOFFICIAL
Create hunting rule

MiscreantPunch.SuspiciousDoc.CrackedVersion.2.UNOFFICIAL
Create hunting rule

MiscreantPunch.PiratedOfficeVersionWithMacros.UNOFFICIAL
Create hunting rule

MiscreantPunch.Macro.PiratedOffice.171002.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXSTRGOOD.\PROGRAMDATA\.REV.210420.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a file
Creating a process with a hidden window
Launching a process
Running batch commands
Launching cmd.exe command interpreter by exploiting the app vulnerability
Creating a process from a recently created file
Using obfuscated Powershell scripts
Result
Verdict:
Malicious
File Type:
Legacy Word File with Macro
Link:
https://app.docguard.net/8c19528ed237067fe58161fb601fdfbf29a6cc90bd2842a6315966d5ca76f956/results/dashboard
Document image
Image:
Download PNG
Document image
Gathering data
Label:
Malicious
Suspicious Score:
9.8/10
Score Malicious:
98%
Score Benign:
2%
Link:
https://www.malware.ai/gui/files/?id=e6692003-e482-4d0f-8465-d53f57356445
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/8c19528ed237067fe58161fb601fdfbf29a6cc90bd2842a6315966d5ca76f956
Details
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
Document With Few Pages
Document contains between one and three pages of content. Most malicious documents are sparse in page count.
Macro with File System Write
Detected macro logic that can write data to the file system.
Macro Execution Coercion
Detected a document that appears to social engineer the user into activating embedded logic.
Macro Contains Suspicious String
Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...
Document With Minimal Content
Document contains less than 1 kilobyte of semantic information.
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1034874
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Document contains an embedded VBA macro which may execute processes
Document exploit detected (creates forbidden files)
Document exploit detected (process start blacklist hit)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Microsoft Office drops suspicious files
Multi AV Scanner detection for submitted file
Obfuscated command line found
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 667366 Sample: mbcoin.doc1 Startdate: 17/07/2022 Architecture: WINDOWS Score: 100 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus detection for dropped file 2->49 51 Antivirus / Scanner detection for submitted sample 2->51 53 5 other signatures 2->53 9 WINWORD.EXE 502 32 2->9         started        process3 file4 29 C:\Users\user\Desktop\~$mbcoin.doc, data 9->29 dropped 31 C:\Users\user\...\~DFA5AEF50ED1A306EB.TMP, Composite 9->31 dropped 33 C:\ProgramData\pin.vbs, ASCII 9->33 dropped 55 Document exploit detected (creates forbidden files) 9->55 57 Microsoft Office drops suspicious files 9->57 13 cmd.exe 9->13         started        signatures5 process6 process7 15 cscript.exe 1 13->15         started        signatures8 59 Obfuscated command line found 15->59 18 powershell.exe 8 15->18         started        21 powershell.exe 12 8 15->21         started        23 powershell.exe 8 15->23         started        25 8 other processes 15->25 process9 dnsIp10 35 bonus.corporatebusinessmachines.htb 18->35 37 perfectdemos.htb 21->37 39 cablingpoint.htb 23->39 41 192.168.2.255, 137, 138 unknown unknown 25->41 43 priyacareers.htb 25->43 45 bussiness-z.htb 25->45 27 rundll32.exe 25->27         started        process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8c19528ed237067fe58161fb601fdfbf29a6cc90bd2842a6315966d5ca76f956/
Threat name:
Script-Macro.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2022-07-15 21:55:54 UTC
File Type:
Document
Extracted files:
22
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rqmvfdwsg4dh7zmbmh5wah67x4u2nteqxuuefjrrlftnlstw7fla._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
macro macro_on_action
Link:
https://tria.ge/reports/220717-ta2t3sdfe7/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
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
Drops file in Windows directory
Checks computer location settings
Process spawned unexpected child process
Malware Config
Dropper Extraction:
http://priyacareers.htb/u9hDQN9Yy7g/pt.html
https://perfectdemos.htb/Gv1iNAuMKZ/jv.html
http://bussiness-z.htb/ze8pCNTIkrIS/wp.html
http://cablingpoint.htb/ByH5NDoE3kQA/vm.html
https://bonus.corporatebusinessmachines.htb/1Y0qVNce/tz.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/8c19528ed237067fe58161fb601fdfbf29a6cc90bd2842a6315966d5ca76f956

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:Hancitor
Create hunting rule
Author:Dhanunjaya
Description:Yara Rule To Detect Hancitor
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:Office_AutoOpen_Macro
Create hunting rule
Author:Florian Roth
Description:Detects an Microsoft Office file that contains the AutoOpen Macro function
Rule name:Specialist_Repack_Doc
Create hunting rule
Author:@bartblaze
Description:Identifies Office documents created by a cracked Office version, SPecialiST RePack.
Reference:https://twitter.com/malwrhunterteam/status/1483132689586831365
Rule name:SUSP_EnableContent_String_Gen
Create hunting rule
Author:Florian Roth
Description:Detects suspicious string that asks to enable active content in Office Doc
Reference:Internal Research
Rule name:SUSP_EnableContent_String_Gen_RID322C
Create hunting rule
Author:Florian Roth
Description:Detects suspicious string that asks to enable active content in Office Doc
Reference:Internal Research
Rule name:SUSP_VBS_Wscript_Shell
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects the definition of 'Wscript.Shell' which is often used by Malware, FPs are possible and commmon
Rule name:TA505_Maldoc_21Nov_2
Create hunting rule
Author:Arkbird_SOLG
Description:invitation (1).xls
Reference:https://twitter.com/58_158_177_102/status/1197432303057637377

File information

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

Web download

Word file docx 8c19528ed237067fe58161fb601fdfbf29a6cc90bd2842a6315966d5ca76f956

(this sample)

  
Delivery method
Distributed via web download

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