PDF malware analysis — malicious · 1b26bfa38b5a49ac

MALICIOUS

PDF

75.1 KB Created: 2021-03-06 23:49:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22

MD5: 50b174124f89e6fdb61e6d22dc4f4f3c SHA-1: 5d9fe9128fe36e67c8d089b77d40907ed654d7aa SHA-256: 1b26bfa38b5a49aca139bb4f1785f0c7c41eab78c30c5b3bd8959c2e0661d525

156 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. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9989

Heuristics 5

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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://pelibifir.ru/123?utm_term=black+and+decker+grass+hog+weed+eater+string+replacement PDF link annotation
- https://vukuxafutuzex.weebly.com/uploads/1/3/2/3/132303027/1574688.pdfIn PDF document text
- https://funifagokose.weebly.com/uploads/1/3/2/6/132681236/jepewatofima.pdfIn PDF document text
- https://vebuxevofarina.weebly.com/uploads/1/3/4/0/134013543/nubimikoboven.pdfIn PDF document text
- https://cdn.sqhk.co/posojuvapono/2XgOtid/duzavegasilotifevajol.pdfIn PDF document text
- http://eglo.club/day_by_day_hymn_sheet_musicwzqi1.pdfIn PDF document text
- https://cdn.sqhk.co/dofofigeniso/jiihidB/60333742525.pdfIn PDF document text
- https://wosefekolejareb.weebly.com/uploads/1/3/4/3/134340916/3046270.pdfIn PDF document text
- http://ita-bio.space/81022392396d7bpk.pdfIn PDF document text
- https://vomuzubedabop.weebly.com/uploads/1/3/0/9/130969103/jidosafe_podelixipabif_vukike_dugemivexowu.pdfIn PDF document text
- https://bewobuvepo.weebly.com/uploads/1/3/2/6/132695749/d76e25.pdfIn PDF document text
- http://life-news.tech/yamaha_r1_2000_service_manualjdhn6.pdfIn PDF document text
- https://cdn.sqhk.co/muwazubivotu/ggw46MJ/77457002621.pdfIn PDF document text
- https://dusonomikeka.weebly.com/uploads/1/3/2/6/132695238/rusud.pdfIn PDF document text
- https://wetebofi.weebly.com/uploads/1/3/1/6/131608016/ledidaxijuga-kawaselidij-savapaxodimo-nowaviduvav.pdfIn PDF document text
- https://zedurobarudavur.weebly.com/uploads/1/3/4/0/134018347/kakifoduv.pdfIn PDF document text
- http://italy50wow.pro/801567567466j9w2.pdfIn PDF document text
- http://gufutaca6.xyz/84321849845hpgj6.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/fusidejebi/book_review_outline_format_college.pdfIn PDF document text
- https://s3.amazonaws.com/bawalidamovidud/rizufozujasenagupofu.pdfIn PDF document text
- https://s3.amazonaws.com/jijari/buxikevaxopaxajupakufi.pdfIn PDF document text
- http://sirirowevaga.rf.gd/65182722367.pdfIn PDF document text
- http://mejesikiwabez.epizy.com/ac_milan_vs_juventus_2003_formation.pdfIn PDF document text
- http://xonizud.epizy.com/bimifu.pdfIn PDF document text
- https://s3.amazonaws.com/vuzufexarevima/delete_all_google_maps_search_history_android.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_off0000d8d9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD8D9	5480 bytes
SHA-256: `3bcb3373ba8d3be7cde3ad38a93a95a82fc85ed1682046ee559b7cb243bea909`
`font_01_sfnt_off0000eb5a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEB5A	10828 bytes
SHA-256: `6b767c3d568149b7e4cfeee04c4541c84f294b0801ef2e0c37b5e48eb6d0015f`
`font_02_sfnt_off00011077.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11077	4324 bytes
SHA-256: `1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361`

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