Malicious PDF — malware analysis report

Static analysis result for SHA-256 e09b94d3d1970c0d…

MALICIOUS

PDF

74.1 KB Created: 2020-08-07 05:44:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9899de4e6a682cded2b0c32d0e1a60fb SHA-1: 3dac5bf9f8119b86ca3e48b3320d6a7ca76bc1a0 SHA-256: e09b94d3d1970c0d6b349548ebf52d5b4cc9058484b03ce5e9d38e96eac2e1bd
150 Risk Score

Malware Insights

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

The PDF document contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination of the malicious payload. The document body and embedded links suggest a lure related to a 'Calendario serie a 18 19 pdf tim', intended to trick users into clicking the malicious link. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=calendario+serie+a+18+19+pdf+tim
    • http://files.inverhuroncommittee.ca/uploads/1/3/1/8/131856456/bopiwanusotipe.pdf
    • http://files.lolosvegan.com/uploads/1/3/0/7/130738596/liliboladurigaw-mikujugobom.pdf
    • http://files.coolharmonies.com/uploads/1/3/1/3/131397973/jozozule.pdf
    • http://files.activemindsucla.com/uploads/1/3/0/7/130776341/pujozativil-tided-zabufugesewamuv-nisobojanosave.pdf
    • https://cdn.shopify.com/s/files/1/0429/2067/3433/files/activate_a2_student_s_book.pdf
    • https://cdn.shopify.com/s/files/1/0433/4603/4853/files/lanowizomuwim.pdf
    • https://cdn.shopify.com/s/files/1/0432/6352/5029/files/jifozojatikonasorinumipo.pdf
    • https://cdn.shopify.com/s/files/1/0429/8987/9445/files/zerijoxegapibi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fatexuxutul.pdf
    • https://cdn.shopify.com/s/files/1/0438/2723/2918/files/35049223517.pdf
    • https://cdn.shopify.com/s/files/1/0430/5109/0071/files/dezari.pdf
    • https://cdn.shopify.com/s/files/1/0437/1320/0278/files/79538471073.pdf
    • https://cdn.shopify.com/s/files/1/0432/8197/3416/files/76693021921.pdf
    • https://cdn.shopify.com/s/files/1/0431/9870/9918/files/tonozuwi.pdf
    • https://cdn.shopify.com/s/files/1/0437/9197/4549/files/rujometan.pdf
    • https://cdn.shopify.com/s/files/1/0430/9021/5073/files/69992963406.pdf
    • https://cdn.shopify.com/s/files/1/0432/6332/8411/files/fobetaroriveginadaj.pdf
    • https://cdn.shopify.com/s/files/1/0432/7571/4715/files/lenny_face_middle_finger.pdf
    • https://cdn.shopify.com/s/files/1/0431/9513/8208/files/duxadipizivaniwisomidese.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_off0000dc0d.bin
44aad14866307b1213c4d6ae0370e1c4a1c20287bd11638744abe892bc9e70ce
pdf-font-stream PDF embedded font (sfnt) at offset 0xDC0D 5496 bytes
font_01_sfnt_off0000eea3.bin
88fc8fd168ffbcd213338e34b9eeb1f8160d9be1c82d82973c616870e08269e7
pdf-font-stream PDF embedded font (sfnt) at offset 0xEEA3 14440 bytes