Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d015c5cf2833da2…

MALICIOUS

PDF

50.0 KB Created: 2020-08-21 10:00:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 454aa51b2bdeb6d64c4f7e9f1127dc4e SHA-1: 40be2e17c515cb29d60846df9acb353310f808ca SHA-256: 1d015c5cf2833da2031d66fc217076fa41bf2f5559c02c457267122c91552abf
120 Risk Score

Malware Insights

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

The PDF file exhibits malicious behavior through a large number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.com/pify?keyword=bootstrap+4.+3+footer+template', points to a known malicious redirector. The document body contains obfuscated text and metadata suggesting it was generated by wkhtmltopdf, and includes the malicious URL within its content, likely as part of a lure or redirection scheme.

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=bootstrap+4.+3+footer+template
    • http://files.unokidz.com/uploads/1/3/0/7/130739978/b2a0d4466f6c29d.pdf
    • http://files.saveekuriforest.com/uploads/1/3/1/4/131484133/gusuzifigalora-wamasizaf-zexogavivaz-pebal.pdf
    • http://fuzudiz.pillagerboosterclub.com/uploads/1/3/0/8/130873830/dusobemat.pdf
    • https://cdn.shopify.com/s/files/1/0430/6924/3549/files/61992165069.pdf
    • https://cdn.shopify.com/s/files/1/0433/5671/7205/files/74853040221.pdf
    • https://cdn.shopify.com/s/files/1/0430/5669/3397/files/archologie_du_savoir.pdf
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/raxozamefadejivudor.pdf
    • https://cdn.shopify.com/s/files/1/0432/8407/0558/files/apache_hadoop_documentation.pdf
    • https://cdn.shopify.com/s/files/1/0459/2467/9829/files/elevate_science_grade_4_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0440/3996/2774/files/96739833787.pdf
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/61872538873.pdf
    • https://cdn.shopify.com/s/files/1/0439/9346/4990/files/deleted_tweets_archive.pdf
    • https://cdn.shopify.com/s/files/1/0427/5296/6812/files/oculus_quest_adb_drivers.pdf
    • https://cdn.shopify.com/s/files/1/0435/9811/9071/files/simple_english_grammar_test_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0428/5415/4406/files/valewizeluzakarixizarivaz.pdf
    • https://cdn.shopify.com/s/files/1/0449/0412/0475/files/jimmy_durante_make_someone_happy.pdf
    • https://cdn.shopify.com/s/files/1/0436/9258/9210/files/arthritis_uk_plantar_fasciitis.pdf
    • https://cdn.shopify.com/s/files/1/0433/7988/4186/files/17043584433.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_off000078c9.bin
247590180f4d7838a80f7d111ee35d9e65c1190499a86b8ad4e3a62a81085412
pdf-font-stream PDF embedded font (sfnt) at offset 0x78C9 5016 bytes
font_01_sfnt_off000089e3.bin
27390a2dd1f0dc54a6ded10e51e5f603d399806f3c004dc7a7ce82a4feb86d62
pdf-font-stream PDF embedded font (sfnt) at offset 0x89E3 10060 bytes
font_02_sfnt_off0000ac57.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0xAC57 4324 bytes