Malicious PDF — malware analysis report

Static analysis result for SHA-256 152122296c4d0c44…

MALICIOUS

PDF

32.2 KB Created: 2020-08-09 09:35:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1808354e4afa8d3f1147b4d74370c976 SHA-1: cbc4e19c95958d02c9d27985c284181abe6057b6 SHA-256: 152122296c4d0c4406c75d78731d25f51ed61d058025e6538af837b18bd7fedc
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to external resources, indicating a link farm. One of these links, https://ttraff.cc/pify?keyword=alleluia+jesus+culture+pdf, is identified as a malicious redirector. This suggests the document is designed to lure users to malicious websites, likely for phishing or malware distribution.

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.cc/pify?keyword=alleluia+jesus+culture+pdf
    • http://files.meganyounkman.com/uploads/1/3/0/9/130969623/zemutewelexef_rapumufar.pdf
    • http://woloretul.diablowoodturning.org/uploads/1/3/2/8/132814930/binirawisejegeber.pdf
    • http://files.ingridpoulson.com/uploads/1/3/1/3/131384359/41408.pdf
    • http://files.mairibudreau.com/uploads/1/3/0/7/130776864/ziwawajobigogefivane.pdf
    • http://files.tntgreatfalls.com/uploads/1/3/0/7/130775653/jenezudaxaro-waxikebibupo-gosolukisiweziw-fefuwajadijo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/2764/4072/files/4960347203.pdf
    • https://cdn.shopify.com/s/files/1/0429/2440/8991/files/42348124424.pdf
    • https://cdn.shopify.com/s/files/1/0434/7189/6736/files/sony_xbr65x930e_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/8158/1223/files/82_buick_regal.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85450973079.pdf
    • https://cdn.shopify.com/s/files/1/0435/8144/0168/files/lojimuvuxokobe.pdf
    • https://cdn.shopify.com/s/files/1/0432/0156/0737/files/jetorote.pdf
    • https://cdn.shopify.com/s/files/1/0430/9018/2297/files/84391294050.pdf
    • https://cdn.shopify.com/s/files/1/0429/6802/3194/files/57950583035.pdf
    • https://cdn.shopify.com/s/files/1/0448/1017/4630/files/bright_line_eating_free.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_off000041b1.bin
bedeaa01b126f49e23edc700bbffe08a51cee3db872de22deb1ae3c8d650f1b3
pdf-font-stream PDF embedded font (sfnt) at offset 0x41B1 5212 bytes
font_01_sfnt_off00005387.bin
159dad6fa598a2fdf591caf60b6de903afc919cf500bdcbe29f0cfd20c141742
pdf-font-stream PDF embedded font (sfnt) at offset 0x5387 9540 bytes