Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b7f06bd5bb6421d…

MALICIOUS

PDF

79.9 KB Created: 2020-08-22 02:04:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: de2023c180e0a31050a4ecd4bd86eb45 SHA-1: 76f5854bb841af5456f3c73a5c7d854052ddd8aa SHA-256: 8b7f06bd5bb6421dd255fb11d4bf162001182a0747c4b7a39243c36b7ce7f0ac
160 Risk Score

Malware Insights

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

The PDF contains a heuristic indicating it's a malicious redirector link, specifically pointing to a URL that appears to be part of an advance-fee scam lure. The document body, though heavily obfuscated, contains the target URL. The PDF also includes a large number of external links, many hosted on Shopify, suggesting a link farm for SEO manipulation or to obscure the final malicious destination.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=arq+netflix+parents+guide
    • http://tiposajo.suncitymw.com/uploads/1/3/0/8/130874493/124535.pdf
    • http://files.momsclub-fredericknorth.com/uploads/1/3/1/1/131164488/cec0cf5c.pdf
    • http://vikasegis.513dj.com/uploads/1/3/1/3/131383791/3ee551f8a0.pdf
    • http://files.quattrociocchiwoodwork.com/uploads/1/3/0/7/130775649/fibumupoge.pdf
    • https://cdn.shopify.com/s/files/1/0433/9020/6115/files/my_heart_s_a_stereo_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0437/3767/7989/files/69898293720.pdf
    • https://cdn.shopify.com/s/files/1/0430/4066/9849/files/free_brazzers_accounts.pdf
    • https://cdn.shopify.com/s/files/1/0437/2873/2314/files/fashion_blogger_media_kit_template.pdf
    • https://cdn.shopify.com/s/files/1/0432/7348/6496/files/wivupijopalixekebige.pdf
    • https://cdn.shopify.com/s/files/1/0439/1714/8312/files/54644651326.pdf
    • https://cdn.shopify.com/s/files/1/0432/3350/9535/files/ammonium_nitrate_explosives_for_civil_applications.pdf
    • https://cdn.shopify.com/s/files/1/0436/5503/7093/files/15749888.pdf
    • https://cdn.shopify.com/s/files/1/0434/8523/3318/files/airport_city_codes.pdf
    • https://cdn.shopify.com/s/files/1/0434/0737/6546/files/49562203108.pdf
    • https://cdn.shopify.com/s/files/1/0437/0120/7193/files/79921424090.pdf
    • https://cdn.shopify.com/s/files/1/0445/6969/0276/files/livupubojolu.pdf
    • https://cdn.shopify.com/s/files/1/0429/8522/6393/files/windows_8._1_pro_64bit.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_off0000fa33.bin
6f44965577e5c4564970e9f67160c6c0ee0fce0a29b555624a5122e79278e96e
pdf-font-stream PDF embedded font (sfnt) at offset 0xFA33 5392 bytes
font_01_sfnt_off00010c88.bin
9f35e76ecff4195a9e673b895204f0ed3a5b4220010deca3c89a618d7cc6e83d
pdf-font-stream PDF embedded font (sfnt) at offset 0x10C88 11192 bytes