Malicious PDF — malware analysis report

Static analysis result for SHA-256 54ce634f98980d73…

MALICIOUS

PDF

43.9 KB Created: 2020-08-12 10:07:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f94f82631fb2840ca9b7af9bd0b3575 SHA-1: f90c00ff1abf019c99662bb816501ce49d966a60 SHA-256: 54ce634f98980d73334bcd686fdf57496af05459cc65ca46f750cda16a58d5aa
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a lure related to the 'Hunger Games' book, but the primary malicious activity is driven by embedded links. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic indicates that the document contains a link pointing to known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=hunger+games+book+1+read+online+pdf'. Additionally, the PDF_SEO_LINK_FARM heuristic suggests the PDF is part of a larger scheme to generate traffic through numerous external links, with 'https://cdn.shopify.com/s/files/1/0431/2711/1841/files/defajiponavamup.pdf' being one of the first identified.

Heuristics 3

  • 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.
  • 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=hunger+games+book+1+read+online+pdf
    • http://files.laarmyexplorers.org/uploads/1/3/1/3/131397938/7610747.pdf
    • http://files.skaarknives.com/uploads/1/3/1/6/131607703/6a9ab1e33e3e.pdf
    • http://files.dianajart.com/uploads/1/3/0/7/130738755/aa5843a.pdf
    • http://files.avoncommunityheritagefestival.org/uploads/1/3/2/6/132681392/pirasokojisa-xigekom.pdf
    • http://files.embodiedtherapysantarosa.com/uploads/1/3/0/9/130969505/6688783.pdf
    • https://cdn.shopify.com/s/files/1/0431/2711/1841/files/defajiponavamup.pdf
    • https://cdn.shopify.com/s/files/1/0432/4527/3251/files/46802955902.pdf
    • https://cdn.shopify.com/s/files/1/0433/4541/2261/files/busimedakaniruziruwepurem.pdf
    • https://cdn.shopify.com/s/files/1/0431/5149/1233/files/bufevotigutamanogupa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pexigubozorabavajodumixi.pdf
    • https://cdn.shopify.com/s/files/1/0438/5836/2528/files/strip_metadata_from.pdf
    • https://cdn.shopify.com/s/files/1/0437/3463/0554/files/22021333408.pdf
    • https://cdn.shopify.com/s/files/1/0435/3314/0127/files/mubenotimipiremumixe.pdf
    • https://cdn.shopify.com/s/files/1/0434/8795/3053/files/bayesian_analysis.pdf
    • https://cdn.shopify.com/s/files/1/0430/6989/8913/files/febrile_neutropenia_in_pediatrics.pdf
    • https://cdn.shopify.com/s/files/1/0429/8155/6375/files/82141063362.pdf
    • https://cdn.shopify.com/s/files/1/0429/8942/0695/files/vomivuwogep.pdf
    • https://cdn.shopify.com/s/files/1/0433/9925/0081/files/jekama.pdf
    • https://cdn.shopify.com/s/files/1/0431/9353/2573/files/mobasaluwap.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c2c.bin
fdd92563b6c38fe03e5f8a2a74cdf85733b4fb984c03723a61de3f014bca3775
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C2C 5580 bytes
font_01_sfnt_off00007f08.bin
caa42b97b8f0e3f8d2c6b2a467562e11d94fee0ebe02b5461090047b107e0392
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F08 10260 bytes