Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e7331478cf310d1…

MALICIOUS

PDF

53.9 KB Created: 2020-08-28 11:06:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4083f79c6a22272bc66a462803ebf99f SHA-1: 6366a6480f869a14c94cbe26a6fda3c7c0824df5 SHA-256: 2e7331478cf310d1f8f4ce75f88fade87fbc6434ac6c55a01c4d5629a0f45897
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=read+mockingjay+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The PDF also contains a large number of external links, suggesting a link farm or SEO poisoning tactic to increase visibility. No scripts were extracted, and the document body was heavily obfuscated, but the presence of the malicious redirector is sufficient evidence for the attack pattern.

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.com/pify?keyword=read+mockingjay+pdf In PDF document text
    • http://files.rugbyconsulting.com/uploads/1/3/1/4/131453636/mosuwofamupame.pdfIn PDF document text
    • http://tupez.diamondhomes.net/uploads/1/3/1/3/131384609/3380089.pdfIn PDF document text
    • http://files.menifeeteachers.org/uploads/1/3/1/3/131381078/molejo-ravevib-kewevu.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://cdn.shopify.com/s/files/1/0434/3876/8284/files/35323192547.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1231/6584/files/gosoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4334/8892/files/posejuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50537202024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5107/3174/files/ccleaner_for_android_mobile_free_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1505/3213/files/dimewesoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6268/0984/files/45295443254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0123/4076/files/ocarina_of_time_promotional_manga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9050/9973/files/76668463329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1046/4667/files/10963956029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7259/3832/files/64631004105.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 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_off00008962.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8962 5124 bytes
SHA-256: 72d17549024a4f88b15afc26fd5e983377a7c88ebcbcf660570b5f44f8182c7c
font_01_sfnt_off00009ace.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9ACE 9896 bytes
SHA-256: 2a60929bc597645f890e4ee504dc833c39dfe035b1deeed048a6e5efaf43b3f5
font_02_sfnt_off0000bc8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC8D 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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