Malicious PDF — malware analysis report

Static analysis result for SHA-256 43a49a8a1b87ef8b…

MALICIOUS

PDF

67.8 KB Created: 2020-11-26 19:44:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: e6060e1c8898a52839ee26105dcf6cc6 SHA-1: 91611298e30c73a6c084f107051974ae935da307 SHA-256: 43a49a8a1b87ef8bbd8e6bd3fc42a1367f2416f8ffa1dbdfeb8897ac10b6595c
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://traffmen.ru/aws?utm_term=back+button+action+in+android In PDF document text
    • https://zimiduninu.weebly.com/uploads/1/3/1/6/131637103/9402018.pdfIn PDF document text
    • https://dumaxenuwumav.weebly.com/uploads/1/3/3/9/133997891/tabiralusufuz.pdfIn PDF document text
    • https://depatimuxuzox.weebly.com/uploads/1/3/4/4/134404048/9b5910e7bab.pdfIn PDF document text
    • https://saduzuwaz.weebly.com/uploads/1/3/4/5/134599146/c48ecfc4.pdfIn PDF document text
    • https://lebotuzipum.weebly.com/uploads/1/3/4/5/134519329/kowaxopunijupipotiwo.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/09b03b.pdfIn PDF document text
    • https://tovegema.weebly.com/uploads/1/3/4/5/134505564/fefarujoso.pdfIn PDF document text
    • https://xonuveviriniw.weebly.com/uploads/1/3/0/7/130738603/busaxes.pdfIn PDF document text
    • https://kiseridebajesa.weebly.com/uploads/1/3/1/4/131408791/1813485.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/c0dddac0-e4da-491e-a749-bef1cb8e5eea/xeniwometuwepobis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/44924667-aacd-4ffb-b759-4b5e90ba8e8f/bmw_e46_318i_repair_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b834fe1-b20d-4959-823f-e948deacbe05/41087808432.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c8b079d-266a-4603-9975-d975c42e8656/26689244859.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce6a6988-e2bb-4091-ab45-8a81136f5314/sinijuveraduleba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ffabd4bf-c5d6-4895-8758-06a3d3bb316e/sujexelirivuxebir.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c709.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC709 4976 bytes
SHA-256: 4da6d04019d7d14ebfcdc4f8b2cb5c84ba42a0ceda7dbef356508b208db9d1e0
font_01_sfnt_off0000d802.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD802 13128 bytes
SHA-256: 2f11982122a7bbf8b2cee0804e4cdcb4da00cb30c7815601300a11d7104b7fdf

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