Malicious PDF — malware analysis report

Static analysis result for SHA-256 001f77ea6ac50bcd…

MALICIOUS

PDF

40.1 KB Created: 2020-08-31 06:59:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 18c2df25cf016ad08c2009397f0e1c83 SHA-1: de7d7fac0069d4765411990b6ca2b369bc31c2bb SHA-256: 001f77ea6ac50bcd7e180404c7a52ade8bdd54e50cf36c1486e824a1ab880112
154 Risk Score

Malware Insights

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

The PDF contains a prominent link to 'ttraff.me', which is flagged as a malicious redirector. The document body, though partially garbled, includes the same URL and keywords related to Minecraft, suggesting a lure to a malicious site. The PDF also hosts a large number of other links, many pointing to benign Shopify URLs, likely as part of a link farm to improve search engine ranking for 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.me/wix?keyword=minecraft+sea+lantern+recipe
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/7361/7576/files/antisocial_personality_disorder.pdf
    • https://cdn.shopify.com/s/files/1/0431/2452/3170/files/tu_poeta_alex_campos.pdf
    • https://cdn.shopify.com/s/files/1/0448/0273/6279/files/abraham_maslow_theory_of_human_needs.pdf
    • https://cdn.shopify.com/s/files/1/0431/8144/1181/files/54273500722.pdf
    • https://cdn.shopify.com/s/files/1/0430/8962/5250/files/54545414814.pdf
    • https://cdn.shopify.com/s/files/1/0435/6122/2307/files/reading_plus_see_reader_level_i_answers.pdf
    • https://cdn.shopify.com/s/files/1/0431/1462/7223/files/susodemupis.pdf
    • https://cdn.shopify.com/s/files/1/0430/1943/6185/files/inspirational_quotes_wallpaper_hd_apk.pdf
    • https://static.usrfiles.com/ugd/912de2_3f93eee2eb80473cae5bb5d742cddc53.pdf
    • https://static.usrfiles.com/ugd/10b11f_506844b6f15e4100a6800dc76341233e.pdf
    • https://static.usrfiles.com/ugd/d01287_0f272579e1b04c08befd7a14b2b47d0c.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000601b.bin
050af5f9aeaf3878c05b7e9d5b04febee50895b262fc29e804d7989d1441735c
pdf-font-stream PDF embedded font (sfnt) at offset 0x601B 5012 bytes
font_01_sfnt_off00007138.bin
2a8ebafeb7744e7241213197c320a4dd0e31668a8b051ae86d1b6b5accc3a2e7
pdf-font-stream PDF embedded font (sfnt) at offset 0x7138 10192 bytes