Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a1df7577d979fdb…

MALICIOUS

PDF

39.0 KB Created: 2020-08-14 00:59:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a8dfa5edd413dfaedd711314a964bce6 SHA-1: 1b01bd17691cc9ac9daa7bff57dcc191c8aacc78 SHA-256: 2a1df7577d979fdb6d8d0b4e85e0b07cfe4c46bbbeca3ee08a92d0a507f8a0a9
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.cc/pify?keyword=whirlpool+fxvm6+oven+user+manual'. This indicates a social engineering attempt to trick users into visiting a malicious site, likely for phishing or malware distribution. The document body, though heavily obfuscated, contains references to the redirector URL and other embedded URLs, reinforcing the malicious intent. The presence of a link farm heuristic further suggests an attempt to manipulate search engine results or distribute content broadly.

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.cc/pify?keyword=whirlpool+fxvm6+oven+user+manual In PDF document text
    • http://files.wanderlustironworks.com/uploads/1/3/1/6/131606396/velerefikudo.pdfIn PDF document text
    • http://kawido.tokenguitaramps.com/uploads/1/3/1/4/131437502/vidufanajeker.pdfIn PDF document text
    • http://files.howlinghillsranch.com/uploads/1/3/0/7/130776487/pilokerekojem.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/1/0431/0184/7708/files/surgical_recall_6th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1313/4757/files/kali_linux_wifi_hack_commands_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0126/6851/files/kadambari_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6249/3345/files/clinical_trials_overview.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0298/5622/files/great_i_am_chords_and_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5378/3957/files/80929950991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4844/9686/files/anemia_defisiensi_asam_folat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1437/9930/files/navy_eval_writer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6714/6397/files/giretafozoxiwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8200/7199/files/que_es_crowdsourcing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3294/3519/files/jekaxorufonukotalasem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/9804/0472/files/can_you_feel_the_love_tonight_ukulele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1334/9273/files/15302507919.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D57 5236 bytes
SHA-256: d73b4bf92964aaf4788029f13d99e0fbe54a47f365245bd4b448f0408eddfa74
font_01_sfnt_off00005eff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EFF 9968 bytes
SHA-256: 49bfb56de7772dab61e6b940fb466808fe26860d18de5ce0cd7f0055b4d917b5
font_02_sfnt_off0000812f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x812F 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c