Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a390c0640e0086b…

MALICIOUS

PDF

73.7 KB Created: 2020-08-07 23:59:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 44648401de132421cabc4a6b43d2a593 SHA-1: 6e4174fd5b6ab4ab695daba418603b4c1c49bf26 SHA-256: 1a390c0640e0086bf2c0789f83811e0f1ee5d6777d2ef3b4b6c960d2fba12ae9
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. Additionally, it exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=anne+with+an+e+book+pdf', suggesting a lure related to a book download. The primary intent appears to be redirecting users to malicious infrastructure.

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=anne+with+an+e+book+pdf In PDF document text
    • http://files.riversandranch.com/uploads/1/3/1/3/131379434/fbe8143dd0f448d.pdfIn PDF document text
    • http://files.grandmassoapandstuff.com/uploads/1/3/1/4/131436956/nopevifinojategum.pdfIn PDF document text
    • http://files.solasprojects.com/uploads/1/3/1/6/131637014/7831429.pdfIn PDF document text
    • http://nuvijuxo.idealcitydesigngroup.com/uploads/1/3/1/8/131856333/tejuwizebiv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4321/5767/files/active_discord_servers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/5578033559.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7919/7081/files/zemaxakubefefugabanit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2290/1663/files/39488016708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5548/0981/files/meniwafu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7631/2478/files/58710707769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7759/1449/files/rimworld_mod_load_order.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/42835913132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7496/8986/files/humphreys_introduction_to_lie_algebras_and_representation_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7738/6918/files/jetuluzarilevuzedabema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7193/0529/files/50944386539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5013/8784/files/99097078910.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/909040323.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
🗂 Part of campaign: engiellepaguican.com 4 samples

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c62b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC62B 8744 bytes
SHA-256: 91e399e77926c5c2f054a9c2f379aa39929310222e749bae759a923bd7b88df9
font_01_sfnt_off0000e345.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE345 5108 bytes
SHA-256: 7b3c4da023356d2268af60d0c1b54fb49719c9b2c1c29120698d7126babbb91f
font_02_sfnt_off0000f4b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4B9 10552 bytes
SHA-256: 8d0ddf44bff4e69df24e7e8ee9e2e8eb513098cebd54d6d5ca6e5e4bac0c63aa