Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ef3afccafc064fb…

MALICIOUS

PDF

45.0 KB Created: 2020-08-19 22:28:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ad60bc941f278c74d8a390964fe01a6 SHA-1: dc1aed08b0c9fa7fa0097b4d202ce344e1d56f62 SHA-256: 4ef3afccafc064fbf538fc9c71005cbd58e2bceb66ad0565b34395f9745efc7a
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=advisory+commission+on+rakhine+state+pdf'. Additionally, it exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on shopify.com, suggesting an attempt to distribute malicious content or engage in SEO abuse. The document body contains obfuscated text and a URL that appears to be the primary lure.

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=advisory+commission+on+rakhine+state+pdf
    • http://jubejilat.elizastollett.com/uploads/1/3/1/6/131606875/xaxuvizubobez.pdf
    • http://zowem.simplyrustic2011.com/uploads/1/3/0/8/130814411/rojufilodif_gemuwobenudaseb_tafanuniwewuma.pdf
    • https://cdn.shopify.com/s/files/1/0430/2539/9971/files/56658820547.pdf
    • https://cdn.shopify.com/s/files/1/0435/3340/2266/files/71291352954.pdf
    • https://cdn.shopify.com/s/files/1/0433/2643/9582/files/58691530572.pdf
    • https://cdn.shopify.com/s/files/1/0428/9154/2681/files/stitch_me_up_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0429/4888/6684/files/fefotojifix.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/11383010616.pdf
    • https://cdn.shopify.com/s/files/1/0451/0813/4053/files/deficiencia_de_vitamina_k_en_recien_nacidos.pdf
    • https://cdn.shopify.com/s/files/1/0431/0820/4704/files/vizowu.pdf
    • https://cdn.shopify.com/s/files/1/0431/8524/2269/files/kekaxikuxu.pdf
    • https://cdn.shopify.com/s/files/1/0440/2331/6630/files/warfarin_initiation_guidelines_australia.pdf
    • https://cdn.shopify.com/s/files/1/0430/6078/9409/files/traditional_catholic_advent_wreath_prayers.pdf
    • https://cdn.shopify.com/s/files/1/0432/0791/7729/files/fenima.pdf
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/sojowigemodagurudiga.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063eb.bin
c2912f262aa157f57994376edc5ebc19202e6d50272401172d6959ba2050642e
pdf-font-stream PDF embedded font (sfnt) at offset 0x63EB 5368 bytes
font_01_sfnt_off00007607.bin
d68c5745376a68b053f9f0476b7c980c00375f5f5b5d9791212abcfe3e1be5e0
pdf-font-stream PDF embedded font (sfnt) at offset 0x7607 10268 bytes
font_02_sfnt_off00009909.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9909 4324 bytes