PDF malware analysis — malicious · 2e499cb8cedd5f5e

MALICIOUS

PDF

79.0 KB Created: 2021-04-02 20:21:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23

MD5: 0c764ade738729a11a4f47fe91267155 SHA-1: db7a95f5836e267ddd685f398fdb244365952e19 SHA-256: 2e499cb8cedd5f5eb9f8d3fa48f9d6915c8d8a4b4f1a16ccbc31930113c7dac4

134 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9991

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://golowaki.ru/strik?utm_term=free+download+twilight+2008+movie+in+hindi PDF link annotation
- http://kemytbok.xyz/47887680509d3tia.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4486221/normal_5ff865ceda593.pdfIn PDF document text
- http://keto-s1.com/electrodynamics_griffiths_4th_editionfip5w.pdfIn PDF document text
- http://white-x.fun/68064025740yipwl.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4393193/normal_5fdda997f20ec.pdfIn PDF document text
- https://sukodijam.weebly.com/uploads/1/3/4/5/134516983/sajinonubavef-depinusawisowub-jobosuf-sujel.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4389816/normal_6041e5d578040.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4453560/normal_6056b7a728fbd.pdfIn PDF document text
- https://zazalefofano.weebly.com/uploads/1/3/4/5/134578352/3a5371d.pdfIn PDF document text
- https://webuwexuzebonal.weebly.com/uploads/1/3/0/7/130775053/74dcdb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465545/normal_606636784647e.pdfIn PDF document text
- https://kinumefiboposif.weebly.com/uploads/1/3/4/8/134865532/fuvubi.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4470685/normal_5ffc4d187f3f8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4452837/normal_5fe7e6b89bf76.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4408584/normal_5feb86f7d9512.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/baxunaf/minecraft_pe_island_village_seed_2020.pdfIn PDF document text
- http://jonebitomire.rf.gd/adjectif_qualificatif_liste.pdfIn PDF document text
- https://s3.amazonaws.com/sojaxub/57262713591.pdfIn PDF document text
- http://bukepajusoka.rf.gd/10448562392.pdfIn PDF document text
- http://kajufikuxididon.rf.gd/bhangarh_fort_video.pdfIn PDF document text
- http://xolagetomijured.epizy.com/how_do_you_use_an_electric_ice_cream_maker.pdfIn PDF document text
- http://nenilezum.epizy.com/37327573083.pdfIn PDF document text
- https://s3.amazonaws.com/jolituzoji/oracle_sql_to_char_date_format_timezone.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e99e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE99E	5424 bytes
SHA-256: `42731d425489177fa1154d86b4cf1ba70c418335943d9820c97c3802e834b268`
`font_01_sfnt_off0000fbed.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFBED	10584 bytes
SHA-256: `4e7c8da9e349b117e15c27079a6b348333f0620cfc73521d04c6dcc31132ecc8`
`font_02_sfnt_off00012040.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12040	4324 bytes
SHA-256: `0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333`

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