Malicious PDF — malware analysis report

Static analysis result for SHA-256 022c2697dceb9900…

MALICIOUS

PDF

48.2 KB Created: 2020-10-30 04:17:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: ba8a104da95419e2d293e5d63cdb09e2 SHA-1: c16cd406147df558b63be5c5401d38e1108f88c5 SHA-256: 022c2697dceb99000de8312951611ef65e9d84b8aff8248a7f9e8c5064cdfcbc
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a large number of embedded links, many of which point to potentially malicious redirector infrastructure. The document body itself contains a link to `https://ttraff.com/123?keyword=color+your+world`, which is flagged as a malicious redirector. The presence of numerous PDF links suggests a link farm or a method to distribute further 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.com/123?keyword=color+your+world In PDF document text
    • https://xoraxabaxid.weebly.com/uploads/1/3/2/6/132682630/1391495.pdfIn PDF document text
    • https://moxitasa.weebly.com/uploads/1/3/1/4/131454719/1068965.pdfIn PDF document text
    • https://samomalekadoj.weebly.com/uploads/1/3/1/4/131438786/1933395.pdfIn PDF document text
    • https://waxojokizubow.weebly.com/uploads/1/3/4/4/134482073/2236169.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/3532345.pdfIn PDF document text
    • https://zafozudakajadev.weebly.com/uploads/1/3/0/8/130814863/xujewonagamaxu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0501/1685/3927/files/alioto_san_francisco_mafia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5293/4044/files/43193588148.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/9074/4741/files/birthmarked_imdb_parents_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1355/1774/files/aztec_blood_gary_jennings.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/6375/3927/files/lizardmen_warhammer_2_campaign_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5933/9673/files/chapter_2_the_chemistry_of_life_crossword_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/6416/2969/files/hark_the_herald_angels_sing_choir.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/the_ultimate_beginner_s_guide_to_real_estate_investing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/5410/3231/files/denamadilemovotufatuvizi.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007605.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7605 4180 bytes
SHA-256: d7e55ee83d0992f844c6d645dd451c29551369b76411df971d63b9f5169eb5b0
font_01_sfnt_off00008449.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8449 9880 bytes
SHA-256: c0291a23686c5c5e5c6ce84a1e9cd0cef14ff6f3306d8aed98e6c23910f9bee3
font_02_sfnt_off0000a5f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5F0 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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