Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e4fa8beadd20ec0…

MALICIOUS

PDF

100.7 KB Created: 2021-05-17 09:30:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 58e34cd3a59691791558b0d4ae7f5a37 SHA-1: c06f88289e3c785422b898c856368a2f8102b034 SHA-256: 9e4fa8beadd20ec000e29dc3c426681c7e9a4bb1be245eeefcd633890eb1df19
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, many pointing to disposable domains, suggesting a link farm or redirection scheme. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and numerous external URLs suggest it's designed to redirect users to malicious content, potentially leveraging embedded JavaScript for obfuscation or further redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://gimoguvi.ru/strik?utm_term=quran+arabic+text+with+urdu+translation PDF link annotation
    • http://bio-ita.fun/weber_grill_rotisserie_replacement_partsnoynv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389824/normal_601f83ccd0e75.pdfIn PDF document text
    • http://gegezuwe.iblogger.org/akbarnama_book.pdfIn PDF document text
    • https://gapudozesaneg.weebly.com/uploads/1/3/4/5/134525911/razed-xotujaz-fetanabajagogo.pdfIn PDF document text
    • http://rajajime.mypressonline.com/kikinofitadekupetugokedu.pdfIn PDF document text
    • http://strgb2.ru/netenobazojip9x63.pdfIn PDF document text
    • http://jozejibojofeku.22web.org/how_is_grounded_theory_different_from_other_qualitative_research_design.pdfIn PDF document text
    • http://kudopifupelixi.22web.org/zegukiririperufu.pdfIn PDF document text
    • http://nuxuzuruguli.mypressonline.com/xukufutafosuni.pdfIn PDF document text
    • https://jedifubebevaze.weebly.com/uploads/1/3/4/8/134873515/jikatuwopizuza.pdfIn PDF document text
    • https://jipedopifuxo.weebly.com/uploads/1/3/4/0/134042804/ec3357870.pdfIn PDF document text
    • https://xevibobi.weebly.com/uploads/1/3/4/6/134683071/jukabeweda_disuf_puguxopudu_kumerelimota.pdfIn PDF document text
    • http://mivetys.xyz/xapizukufazeseloxizotu6u2tw.pdfIn PDF document text
    • http://ehaberdevlet.com/381772740122czns.pdfIn PDF document text
    • http://ritual-venki.online/lopadibamishwmm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483089/normal_603748950f9db.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://e8b83640-91e4-44a0-a69f-c2468797902f.filesusr.com/ugd/ee4a13_8402f05845884b858cb8e10ad2941f81.pdf?index=trueIn PDF document text
    • http://jabisuluro.epizy.com/42745560913.pdfIn PDF document text
    • http://sobikunukozi.rf.gd/farrington_lake_fishing_report.pdfIn PDF document text
    • https://959e49da-b405-4961-97d4-5c1bb2e9a628.filesusr.com/ugd/ab0441_71e8068eccfc48519414648dc3d8a6dc.pdf?index=trueIn PDF document text
    • https://ebba3e40-d49f-4cc8-b137-373bb1124918.filesusr.com/ugd/384ea4_6467cd312e7745948ee06d8c3e1e6faf.pdf?index=trueIn PDF document text
    • https://4f640d82-8365-4c22-93d6-dbd3427c3fb0.filesusr.com/ugd/55e8b7_fdb4667fa02d4b5880ea3593a2f07dd0.pdf?index=trueIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012c4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C4F 5388 bytes
SHA-256: 0bdd7fe80da9ae42bb2cd80407262ab47e68cb5640a6b332f7492fcb3cee17a3
font_01_sfnt_off00013ea3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13EA3 12864 bytes
SHA-256: 2b754d2669fc526883d736a712130a7cef9f8ba6bc91642b805a9c326b91c182
font_02_sfnt_off000169ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x169CE 17136 bytes
SHA-256: 3eaae7c86e0438bbaeddad01a277d789893061c4bf1bb6151deeb5170b9146c2

Open this report in the interactive analyzer, or submit your own file for analysis.