Malicious PDF — malware analysis report

Static analysis result for SHA-256 65a382182659a09a…

MALICIOUS

PDF

72.1 KB Created: 2020-08-21 05:23:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2b071d36214ea99dd47bef965c3d73b6 SHA-1: 52297bb804540d12d39e22168e425d6846209c40 SHA-256: 65a382182659a09a4f9909dd427d50d8e6bcd53a49925c10f23d3b69ac328ccf
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 suspicious or known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be a lure for movie downloads, which then redirects to a malicious site. This suggests a phishing or scam attempt designed to lead users to malicious 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.ru/pify?keyword=carry+on+maratha+full+movies
    • http://guwelel.fridaylanecookieco.com/uploads/1/3/1/3/131383982/a8f5023.pdf
    • http://files.saragayart.com/uploads/1/3/0/7/130776619/xiguzivef_makavaxumo_detemazit_megovutiwipe.pdf
    • http://files.elephantmomma.com/uploads/1/3/1/4/131482821/18900b5fac25a.pdf
    • http://files.scorpionsvolleyball.ca/uploads/1/3/1/3/131398515/fonuluxunuwabena.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0431/0594/3701/files/gw2_celebratory_dye_pack.pdf
    • https://cdn.shopify.com/s/files/1/0433/5858/4986/files/kokaxubizaz.pdf
    • https://cdn.shopify.com/s/files/1/0429/3433/7695/files/dadivej.pdf
    • https://cdn.shopify.com/s/files/1/0436/1388/0483/files/idyllwild_hiking_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/6246/8503/files/gitewotaladowopejo.pdf
    • https://cdn.shopify.com/s/files/1/0433/4629/6985/files/23131518776.pdf
    • https://cdn.shopify.com/s/files/1/0434/2661/1357/files/tilapomuda.pdf
    • https://cdn.shopify.com/s/files/1/0433/4256/1433/files/54333155374.pdf
    • https://medlineplus.gov/lab-tests/bcr-abl-genetic-test/
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c384.bin
8ec99ad414d58f66637c9a8d38eaa0b22ba662c5c1cd4dfcc74ec9db7a27d960
pdf-font-stream PDF embedded font (sfnt) at offset 0xC384 5076 bytes
font_01_sfnt_off0000d4a6.bin
5aedf9c4bdbec8bed183edfbadb00b004e142dd48df52de872e0bbd7801ac5e6
pdf-font-stream PDF embedded font (sfnt) at offset 0xD4A6 15896 bytes
font_02_sfnt_off000105e2.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x105E2 4324 bytes