Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6dd7ebbe1acb43b…

MALICIOUS

PDF

73.5 KB Created: 2021-06-08 08:42:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: b87c208dd697627d36076e16b873a916 SHA-1: 5dfe8f8761ec8d9550131f1337978205c69bed48 SHA-256: d6dd7ebbe1acb43bc517985bd2c785536a3b4feaf0a493c0fd6f00f619d064d2
186 Risk Score

Malware Insights

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

This PDF file contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing lure. The primary URL points to a search result for a movie, likely a tactic to attract unsuspecting users. While no scripts were explicitly extracted, the PDF structure and numerous external links indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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 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.
  • 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://garglob.ru/pbw?utm_term=assistir+filme+alexandre+o+grande+completo+dublado PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4381730/normal_603c2becad8a7.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4376619/normal_60b54bc140238.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4383681/normal_60b3e8f7df5f1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457332/normal_5fd9060a14290.pdfIn PDF document text
    • https://besivopu.weebly.com/uploads/1/3/4/7/134705308/datopolox.pdfIn PDF document text
    • https://wixetaduzem.weebly.com/uploads/1/3/4/4/134471786/daganirupur_bagogoj_nupamanovi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470960/normal_5fcfa2929b998.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470226/normal_5fe00901490f6.pdfIn PDF document text
    • https://xedatuvigino.weebly.com/uploads/1/3/4/5/134580066/tisofezik.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461516/normal_5fdcb824a935a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493876/normal_601dfcde6917b.pdfIn PDF document text
    • https://zajefogana.weebly.com/uploads/1/3/1/4/131407312/firujakuwe.pdfIn PDF document text
    • https://nonegisetuku.weebly.com/uploads/1/3/4/8/134877303/taroroz_narerepotig_rudugumoza_wojexuto.pdfIn PDF document text
    • https://rabivavas.weebly.com/uploads/1/3/0/9/130969809/leziler-gusifemomeg-foverosatuf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/590c169f-9c74-4b4f-b732-d0e40a992d58/trane_xv95_pilot_light.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/772d37f2-3213-41c0-ab0e-633b4df77fe6/how_much_do_criminal_lawyers_cost_uk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b8f2648-a057-49b1-8543-04bbd5518d16/dosizugofa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d17fb91d-a102-42bb-9eec-8b95497cef96/girepif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1772bcba-b15d-4c75-8698-b8e48a47b8dc/21158534120.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/283f76bd-d68b-4b20-814e-79f4baa77a27/what_was_the_name_of_the_radical_republicans_plan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92e01089-a99c-4010-8481-ff35b5919486/showcase_lost_girl_episodes.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dad1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAD1 5672 bytes
SHA-256: 05288ca4f82094cb33b4233ca280301710cd7c55b1dd51b20a55bd3d59219efa
font_01_sfnt_off0000ee0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE0F 13400 bytes
SHA-256: 61d4fd1643cf38701ee45ddd395afb3e72081587f2f9ee910d3aa07118da6942