Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1753e73201e86f8…

MALICIOUS

PDF

45.5 KB Created: 2020-08-09 19:52:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 569fa1be9a39ac47a19760831f463219 SHA-1: 6abc4d1d69aa64e33e608b3ca404a10b48216cde SHA-256: a1753e73201e86f8663052ed344dc7cfb3e8f324dba476992137e14be34a8038
202 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=2020+myanmar+census+report+pdf', suggesting a lure to a malicious site. The presence of a visual download button further supports a deceptive user interaction pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=2020+myanmar+census+report+pdf In PDF document text
    • http://files.indigotheatrical.com/uploads/1/3/2/7/132712315/suborunowawijasezajo.pdfIn PDF document text
    • http://files.zaftigs.com/uploads/1/3/0/8/130874299/197b9e2cf5.pdfIn PDF document text
    • http://xevimoxir.osdarmembers.org/uploads/1/3/0/7/130776485/b997e3c1.pdfIn PDF document text
    • http://kirok.emmaredmarchrose.com/uploads/1/3/1/1/131164250/fdffcdf714.pdfIn PDF document text
    • http://files.joinzombieclub.com/uploads/1/3/1/0/131071157/b871355960bee88.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/1/0434/5564/3813/files/49770890728.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2639/0946/files/kezolebafaluvugote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3493/5447/files/tuxogarijatem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5753/7439/files/90912814271.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/medarovadujagowurevasote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0427/1524/files/vibakuxibanafafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2998/5430/files/biblia_hebraica_stuttgartensia_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2829/7381/files/97088862363.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9667/0365/files/catan_card_game_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7827/0619/files/european_food_safety_standards.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8648/7455/files/gisuni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8673/2707/files/gitumijupizifujewetodete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5699/6247/files/84920591200.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7181 5552 bytes
SHA-256: 829ff99a4dd2a0cbc9daea52dffb8abc465864b5973e7ead13b6fc5c1750d850
font_01_sfnt_off00008452.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8452 10620 bytes
SHA-256: 638334e395c72e4eee353e0c6faa11663c18ee51338ffd4bcf2b1d0db688fa89