Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7e3ee264f492c27…

MALICIOUS

PDF

46.4 KB Created: 2020-08-19 13:06:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a9629d4b31bd5600d9ebbcf1bb701e3f SHA-1: 7f37329b52df3a7434c1f5f488705bfe688cf46f SHA-256: c7e3ee264f492c2733cb93da360aebd0f29e5f14e424a311b871d3c904467c8e
128 Risk Score

Malware Insights

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

The PDF file contains a lure related to "Paypal recurring payments developer guide" and embeds multiple links. One critical heuristic indicates a malicious redirector link to "ttraff.com", which is likely used to host further malicious content or phishing pages. The document body, though heavily obfuscated, contains the same lure and the malicious URL. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious links broadly.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=paypal+recurring+payments+developer+guide
    • http://files.ccusbcnv.com/uploads/1/3/1/3/131379443/wesinigoteri_gotaketitibirot_gumajatewuli_kobijirapu.pdf
    • https://cdn.shopify.com/s/files/1/0435/4598/5192/files/read_naruto_gaiden.pdf
    • https://cdn.shopify.com/s/files/1/0434/3247/6838/files/benefits_of_social_media_on_youth.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/97072231683.pdf
    • https://cdn.shopify.com/s/files/1/0430/0944/1953/files/football_live_tv.pdf
    • https://cdn.shopify.com/s/files/1/0438/6711/1584/files/specific_gravity_of_coarse_aggregate_test_procedure.pdf
    • https://cdn.shopify.com/s/files/1/0437/3390/9665/files/wijukagu.pdf
    • https://cdn.shopify.com/s/files/1/0433/6248/4383/files/kiran_psychological_aptitude_test_book_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/9265/5780/files/90648284702.pdf
    • https://cdn.shopify.com/s/files/1/0431/0741/8273/files/x_scope_browser.pdf
    • https://cdn.shopify.com/s/files/1/0431/0866/3456/files/french_and_raven_bases_of_power.pdf
    • https://cdn.shopify.com/s/files/1/0434/9588/2918/files/python_multiply_list.pdf
    • https://cdn.shopify.com/s/files/1/0437/6644/8279/files/flight_simulator_2017.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_off0000763a.bin
8874c31ca30a55a0c40cccbce41b83f659de9f79d8b29045fe2103adb179ab97
pdf-font-stream PDF embedded font (sfnt) at offset 0x763A 5556 bytes
font_01_sfnt_off00008916.bin
ae8f45fb142376cd35f1f6fc0d6f5a60da7008e8907530b5139db69e5d5407e2
pdf-font-stream PDF embedded font (sfnt) at offset 0x8916 10380 bytes