Malicious PDF — malware analysis report

Static analysis result for SHA-256 ded0f4d4562450e5…

MALICIOUS

PDF

38.7 KB Created: 2020-08-24 22:04:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7cbb6d408d7cf9ebfd7d77feffc27afe SHA-1: d2e62edd61ed651488012e85e47b2751d9bf623b SHA-256: ded0f4d4562450e52655a51b41f26864f317e075add450c0f0b1ed3e61561e10
120 Risk Score

Malware Insights

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

The PDF file contains a link farm and a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text related to '7 little words answers puzzle 21' and the malicious URL. This suggests a social engineering lure to trick users into visiting a malicious site.

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.cc/pify?keyword=7+little+words+answers+puzzle+21
    • http://files.lgbtasylumproject.org/uploads/1/3/0/7/130740483/digorega_fuxix_givanelope_vononoxotepapij.pdf
    • https://cdn.shopify.com/s/files/1/0437/1903/3000/files/pugesa.pdf
    • https://cdn.shopify.com/s/files/1/0431/2144/2965/files/88824892148.pdf
    • https://cdn.shopify.com/s/files/1/0438/0744/1053/files/padozi.pdf
    • https://cdn.shopify.com/s/files/1/0440/8049/6792/files/metonukapuzosufaseroji.pdf
    • https://cdn.shopify.com/s/files/1/0430/5122/1146/files/antisocial_personality_disorder_symptoms.pdf
    • https://cdn.shopify.com/s/files/1/0433/4619/8683/files/akshaya_lottery_result_today.pdf
    • https://cdn.shopify.com/s/files/1/0433/4485/5195/files/fezagudixemukijura.pdf
    • https://cdn.shopify.com/s/files/1/0430/7258/5888/files/48838911332.pdf
    • https://cdn.shopify.com/s/files/1/0430/7589/5450/files/darekegixijatiwudikuzilo.pdf
    • https://cdn.shopify.com/s/files/1/0427/9504/0924/files/zotelej.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_off000058c9.bin
c0e78d529b1de294faa4eaca91c1aee64b9f755ca486a7a8c20cbc33dabc679f
pdf-font-stream PDF embedded font (sfnt) at offset 0x58C9 5264 bytes
font_01_sfnt_off00006ae4.bin
ff65499abad5553fc0a597ced08e3715f20e3ce44ac12312e95f677080ce506b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE4 10232 bytes