Malicious PDF — malware analysis report

Static analysis result for SHA-256 265addedd35eb875…

MALICIOUS

PDF

39.6 KB Created: 2020-08-25 10:46:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 769da131410173b402999b27d2e6dd56 SHA-1: 2f45877cae9504c3ca42bfde48ace64e1a39b323 SHA-256: 265addedd35eb875ff2b90c37908077cb3c75344b09acb135f9d372a3d112416
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass of external links, including a critical redirector link to 'ttraff.com'. This suggests a link farm or redirection scheme designed to obscure the final malicious destination. The document body, though heavily obfuscated, contains the same malicious URL, indicating an attempt to lure the user into clicking it. No scripts were extracted, limiting further analysis of the payload delivery mechanism.

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=colon+cancer+journal+pdf
    • http://timomipo.rosannebane.com/uploads/1/3/2/7/132741009/5d424870489c.pdf
    • http://jepesu.saaea.org/uploads/1/3/0/8/130814935/naroda-gizoteko-garobej-gebefaduwojo.pdf
    • http://files.cosmiceggcreative.com/uploads/1/3/1/8/131856121/zixonajiwasalirade.pdf
    • http://files.alessandraleewoods.com/uploads/1/3/0/7/130776123/tadixuxerugovorelewe.pdf
    • http://files.thomasradovich.com/uploads/1/3/0/7/130775942/57f120.pdf
    • https://cdn.shopify.com/s/files/1/0430/1638/8761/files/beyond_biocentrism_book.pdf
    • https://cdn.shopify.com/s/files/1/0428/1715/9335/files/9294968245.pdf
    • https://cdn.shopify.com/s/files/1/0429/7896/7703/files/lawomowivo.pdf
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/xapazoniguvinajadugu.pdf
    • https://cdn.shopify.com/s/files/1/0435/4369/1419/files/wexuladixe.pdf
    • https://cdn.shopify.com/s/files/1/0429/7247/9647/files/86453054723.pdf
    • https://cdn.shopify.com/s/files/1/0434/0239/5813/files/tamil_bangla_movie_2019.pdf
    • https://cdn.shopify.com/s/files/1/0437/5671/6186/files/24934645698.pdf
    • https://cdn.shopify.com/s/files/1/0434/7396/1125/files/wubovokade.pdf
    • https://cdn.shopify.com/s/files/1/0429/7667/3946/files/vujuvobiza.pdf
    • https://cdn.shopify.com/s/files/1/0435/6558/0437/files/intel_hd_4600_graphics.pdf
    • https://cdn.shopify.com/s/files/1/0437/9652/9314/files/fajemamororoforuvikas.pdf
    • https://cdn.shopify.com/s/files/1/0432/8207/1716/files/ielts_reading_sample_answer_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0428/8266/2553/files/inhaled_corticosteroid_doses_for_nice_asthma_guideline.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_off00005fe9.bin
8dfc0b14e6625a1eba92ea072809aff2c120d3d6f900e60afb25d2e8ba40ccc0
pdf-font-stream PDF embedded font (sfnt) at offset 0x5FE9 4952 bytes
font_01_sfnt_off000070ce.bin
288b64d29f920f3aa2fe20485955ff48bb822cb7c8f9048ca3569aced1ea46bc
pdf-font-stream PDF embedded font (sfnt) at offset 0x70CE 9552 bytes