Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9332eb37976a90a…

MALICIOUS

PDF

52.5 KB Created: 2020-08-01 12:02:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51b4e93d19c4760c8f77d8735e4273ac SHA-1: e6c590c49dc04bf341c06fa66d9ad07e3b3cb995 SHA-256: f9332eb37976a90aa77b814dd1a41b7411947a964ca8830a2f7c48690389b338
120 Risk Score

Malware Insights

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

The PDF document was identified as malicious due to the presence of a link to a known malicious redirector, ttraff.com. This redirector likely serves as a gateway to a phishing or malware distribution site. The document also contains a large number of links to other PDFs hosted on cdn.shopify.com, suggesting a link farm or SEO poisoning tactic. No scripts were extracted from this sample, and the document body was heavily obfuscated, limiting further analysis of its specific content beyond the embedded URLs.

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=%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C+%25D0%25BC%25D1%2583%25D0%25B7%25D1%258B%25D0%25BA%25D1%2583+mp3+%25D0%25B0%25D0%25BB%25D1%258C%25D0%25B1%25D0%25BE%25D0%25BC%25D1%258B+the+beatles
    • http://files.kelleyintegrity.com/uploads/1/3/0/9/130970003/84a094c03d979a9.pdf
    • http://files.sarahelizabethpowell.com/uploads/1/3/0/7/130776499/lolewutoluwap.pdf
    • http://files.madebyhollie.com/uploads/1/3/1/4/131407918/d5cb190976.pdf
    • http://files.justcapsusa.com/uploads/1/3/0/7/130776407/lokopono.pdf
    • http://files.rochesterkino.co.uk/uploads/1/3/1/1/131164002/forixamewowipewuguwe.pdf
    • https://cdn.shopify.com/s/files/1/0430/2602/2554/files/17451679198.pdf
    • https://cdn.shopify.com/s/files/1/0431/6109/2255/files/tejaboruzedi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69262577592.pdf
    • https://cdn.shopify.com/s/files/1/0434/7691/0242/files/98266022236.pdf
    • https://cdn.shopify.com/s/files/1/0440/7105/9608/files/74539182740.pdf
    • https://cdn.shopify.com/s/files/1/0433/3741/6869/files/zuwapilavazimaseri.pdf
    • https://cdn.shopify.com/s/files/1/0430/9765/3397/files/mesazugibu.pdf
    • https://cdn.shopify.com/s/files/1/0434/6377/0274/files/98323168071.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gejazopemovaro.pdf
    • https://cdn.shopify.com/s/files/1/0435/6059/9711/files/84321733530.pdf
    • https://cdn.shopify.com/s/files/1/0430/3867/1010/files/moxebanikijokunosurabub.pdf
    • https://cdn.shopify.com/s/files/1/0429/1782/2620/files/bikabumexejapipineradi.pdf
    • https://cdn.shopify.com/s/files/1/0435/9094/2888/files/ditch_witch_repair_manual.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_off00007e14.bin
a9070ca8b6527e8b11fb75b074fd0d343bbd890c7900125db812af6be5333f40
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E14 6644 bytes
font_01_sfnt_off00009344.bin
dcfecd63923560d7583fa470e5dbfa1fcb4ea940a08b7ab9293b0ba26f33774b
pdf-font-stream PDF embedded font (sfnt) at offset 0x9344 15236 bytes