Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec055992df75bbca…

MALICIOUS

PDF

40.8 KB Created: 2020-08-08 06:47:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 838ce5c8d3446b9172c0e9427b89a09e SHA-1: 7813bb3ee7b7a4af3645d3a60cb256cbc2ce4839 SHA-256: ec055992df75bbcaf689bc95f3da93b412381b1404b162c9c781929fb77ce9df
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at https://ttraff.ru/pify?keyword=blood+and+guts+book+dorian+yates+pdf. This suggests the document is designed to redirect users to malicious infrastructure, likely for further exploitation or phishing. The document body, though partially corrupted, contains keywords related to the linked URL, reinforcing the lure. No scripts were extracted, but the PDF structure and embedded links are sufficient to infer a malicious redirection attack pattern.

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.ru/pify?keyword=blood+and+guts+book+dorian+yates+pdf
    • http://files.lorraineeljuga.com/uploads/1/3/2/7/132710679/bipim-zevosutuzobav.pdf
    • http://nosagid.skywaterlabradors.com/uploads/1/3/2/7/132740214/6176785.pdf
    • http://files.emexon-international.com/uploads/1/3/1/6/131606502/f054d996c5a8.pdf
    • http://files.northsoundassociation.com/uploads/1/3/1/0/131070792/gudepumajova-rafoxoz-fopotawum.pdf
    • https://cdn.shopify.com/s/files/1/0431/7193/8453/files/navifote.pdf
    • https://cdn.shopify.com/s/files/1/0433/8126/0438/files/71089488153.pdf
    • https://cdn.shopify.com/s/files/1/0429/0193/0143/files/firosirepanukevixobebepik.pdf
    • https://cdn.shopify.com/s/files/1/0437/5071/9642/files/oxford_discover_4_workbook_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/3463/0554/files/61830696317.pdf
    • https://cdn.shopify.com/s/files/1/0434/3929/2577/files/xamakimepulovenaxujedi.pdf
    • https://cdn.shopify.com/s/files/1/0430/5960/9753/files/php_array_filter.pdf
    • https://cdn.shopify.com/s/files/1/0437/7001/9994/files/cricket_rules_in_tamil_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/0582/1599/files/751596699.pdf
    • https://cdn.shopify.com/s/files/1/0428/8079/4780/files/zudasepidedix.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35022180152.pdf
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/81099152305.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_off000054f1.bin
69dac646a431c8fd327f6b62a99dc63711325138591e82f945bc858c4fced9b3
pdf-font-stream PDF embedded font (sfnt) at offset 0x54F1 5564 bytes
font_01_sfnt_off000067f5.bin
947a22d5170e0a33e875ff6c998fd0763a2eef6813cdc228cce7f17964e1b256
pdf-font-stream PDF embedded font (sfnt) at offset 0x67F5 2628 bytes
font_02_sfnt_off0000731c.bin
db461ed8dd569f51e9ebe5171cf8747153da0fa1891645773c67bbd73c9581a4
pdf-font-stream PDF embedded font (sfnt) at offset 0x731C 10180 bytes