Malicious PDF — malware analysis report

Static analysis result for SHA-256 44a1ddbbd4a62a86…

MALICIOUS

PDF

48.9 KB Created: 2020-09-18 14:56:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9f0527a1f84487921160eced9d225b43 SHA-1: faf465ac0b4b563c148c5ca7d0c68d6a827a6841 SHA-256: 44a1ddbbd4a62a86b84d5ecbd311c45400b04b07c8aa18ab246aa735019dac53
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF contains a link farm designed to redirect users to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The primary lure appears to be related to 'dokkan battle mod apk dragon stones', suggesting a scam or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded links are the primary vector for this attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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://ttraff.me/wix?keyword=dokkan+battle+mod+apk+dragon+stones In PDF document text
    • http://files.bonsaireading.co.uk/uploads/1/3/2/8/132814967/2428055.pdfIn PDF document text
    • http://rukivawor.radioara.ihotispolis.com/uploads/1/3/1/0/131070705/rubazatewe.pdfIn PDF document text
    • http://files.eaglendt.services/uploads/1/3/2/3/132302941/vujegega_kigozus_vemiwasamejore_fenelisuje.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://3f10d824-83d0-4c5a-8ca6-f83dc73149c9.filesusr.com/ugd/7d1dc9_7bd72203e6ed40bbac53fc407d64305a.pdf?index=trueIn PDF document text
    • https://3f434c57-8b3b-44a6-8fae-340c6640ca5d.filesusr.com/ugd/3615fb_2b81d1190c624c4baf2ec2ba64500af4.pdf?index=trueIn PDF document text
    • https://57ae3538-17f8-4cac-b268-d23f43551ac6.filesusr.com/ugd/8508de_7b1f6cdb6d47479b948e568d09b704fd.pdf?index=trueIn PDF document text
    • https://99e6f1ed-fe5b-4727-9c24-88b4bce12b89.filesusr.com/ugd/238140_7166464099374a4e88e27926fea1a5e8.pdf?index=trueIn PDF document text
    • https://afe1f40c-1a25-4ed0-9bbc-0af4f7e3015e.filesusr.com/ugd/e50c99_a94cf3a96f1c4de6834081f5fa333481.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2994/5758/files/mad_men_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/acaros_parasitologia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/0634/4606/files/zojedirotexinuworomejiwi.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 5

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A37 5484 bytes
SHA-256: 4e50d1c846a28db1ddd85b9d5cb4238f5dc0614bc324d651283f18a2d053fad2
font_01_sfnt_off00007cc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CC6 10412 bytes
SHA-256: 9275e9d843654cc4f09cb4dcda71ef82efffc6ff39a3a8303e1a4bf5a9dcabd1
font_02_sfnt_off0000a01b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA01B 16444 bytes
SHA-256: 9461eb7efae7d367e42612ee9e950de81e1c7d013e5627f42604b4d6a6610c74

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