Malicious PDF — malware analysis report

Static analysis result for SHA-256 03035f4ace6252f4…

MALICIOUS

PDF

33.6 KB Created: 2020-08-03 12:04:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c92f680327997d54afe4846468680446 SHA-1: fa0ab6b553f69e63aa83f966809fee4e7909bc70 SHA-256: 03035f4ace6252f413e414c40fa1c465bc9453c1bd1fc9b354e1af8ab5839e2c
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, with the primary URL `https://ttraff.com/pify?keyword=boveda+espiritual+pdf` identified as a malicious redirector. The document body, though partially corrupted, suggests a lure related to 'Boveda espiritual pdf', indicating a potential phishing or content-scraping scheme. The presence of a link farm further supports the malicious intent of directing users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=boveda+espiritual+pdf
    • http://files.arcsp.org/uploads/1/3/0/9/130969218/tejeraduvomura-feworiwo-getewa-mubefogup.pdf
    • http://files.camilleprzewodek.com/uploads/1/3/0/7/130776103/lorexone.pdf
    • http://files.saintclementcatholicparish.org/uploads/1/3/1/0/131070485/fofoxe_xomitaluwopaf.pdf
    • http://files.laraffinerie-sg.com/uploads/1/3/0/7/130740053/8668955.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30551251375.pdf
    • https://cdn.shopify.com/s/files/1/0433/3685/9813/files/nobinipubegiwupatubu.pdf
    • https://cdn.shopify.com/s/files/1/0432/0228/1633/files/38597699581.pdf
    • https://cdn.shopify.com/s/files/1/0435/0912/1184/files/7535655565.pdf
    • https://cdn.shopify.com/s/files/1/0431/2314/6909/files/bavovumorumafazudimug.pdf
    • https://cdn.shopify.com/s/files/1/0433/4669/0203/files/wifiwomoxepokanixafid.pdf
    • https://cdn.shopify.com/s/files/1/0433/0592/6809/files/mowogunixitazap.pdf
    • https://cdn.shopify.com/s/files/1/0428/2299/2028/files/japazubuwuf.pdf
    • https://cdn.shopify.com/s/files/1/0430/7307/7415/files/68531972739.pdf
    • https://cdn.shopify.com/s/files/1/0441/0382/7608/files/tapibemowewevosuvozi.pdf
    • https://cdn.shopify.com/s/files/1/0434/6429/4557/files/27807241986.pdf
    • https://cdn.shopify.com/s/files/1/0428/4389/8019/files/rebos.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000487b.bin
f57b1cd1be953ff3a4090af30441d8067f82a45b8e1059fdaaf4bfa023c70d99		 pdf-font-stream PDF embedded font (sfnt) at offset 0x487B 5144 bytes
font_01_sfnt_off00005a12.bin
cc9cb5eeaf5da5202bfc7dd1ae02fb73017fc4f50fc83d29db26b60aee336de5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A12 9328 bytes

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