Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5826e65a3d7b4cb…

MALICIOUS

PDF

44.0 KB Created: 2020-08-25 02:39:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bd6994b9907dc6e27d6e6c66f9e97bec SHA-1: ea6a632925f1efe132784c820df24b2cc7d85ab5 SHA-256: d5826e65a3d7b4cba0b6f00a580910d42b5324ecdc5c81904583aa29b50f38ea
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The embedded links, including one to 'ttraff.com', suggest an attempt to lure users to potentially harmful sites. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the PDF structure itself is the delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=leatherworking+leveling+guide+wowhead
    • http://files.rosemaryeagle.com/uploads/1/3/0/7/130740458/zorikepukaxem-linalodexagoga-ditox.pdf
    • http://files.epicsurvivors.org/uploads/1/3/1/3/131378950/62a9e7b.pdf
    • http://files.lacibirth.com/uploads/1/3/1/0/131069832/bazomeba.pdf
    • https://cdn.shopify.com/s/files/1/0440/1663/1973/files/vivisuxarunuwowaja.pdf
    • https://cdn.shopify.com/s/files/1/0431/4942/6845/files/autentico_2_core_practice_answers.pdf
    • https://cdn.shopify.com/s/files/1/0436/1807/4786/files/malelorojujopigiterala.pdf
    • https://cdn.shopify.com/s/files/1/0432/2666/1023/files/what_is_the_longest_palindrome.pdf
    • https://cdn.shopify.com/s/files/1/0431/4012/0733/files/citation_apa_format_website_no_author.pdf
    • https://cdn.shopify.com/s/files/1/0434/1350/4156/files/42870346171.pdf
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/chemistry_notes_class_11th.pdf
    • https://cdn.shopify.com/s/files/1/0435/3094/4671/files/87553941313.pdf
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/bruchrechnung_vermischte_aufgaben.pdf
    • https://cdn.shopify.com/s/files/1/0462/6520/4890/files/rolamatawajinal.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_off00006ee3.bin
eada3230fa59890c0a405b8bc90eafa56bfde7e10fb58567c0eeb514b0afc87c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EE3 5064 bytes
font_01_sfnt_off00008031.bin
e132746ec81f6e05475b28094e132c3f04c8d7dc824cc515c83d2d6c1b525bd6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8031 10344 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.