Malicious PDF — malware analysis report

Static analysis result for SHA-256 eac9b27ff74e06e5…

MALICIOUS

PDF

41.7 KB Created: 2020-08-17 08:54:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b04f15d279f551e8eca3d76c3c9aecf SHA-1: 791e0d0a04ea88a4d5490b8651149003da7db2a1 SHA-256: eac9b27ff74e06e528adccb970aed48b4a402d94bfe9fb5c7beae3ea70d769d0
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc'. This link is presented within the document body, disguised as a 'battery life app' lure. The redirector then points to a PDF hosted on a Shopify domain. The presence of a mass external PDF link farm heuristic further indicates a malicious intent to distribute content via numerous links.

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.cc/pify?keyword=200+battery+life+app
    • http://nugape.acfrd.com/uploads/1/3/0/8/130874524/c77f7c.pdf
    • https://cdn.shopify.com/s/files/1/0435/4896/7061/files/litivafaveragisifikute.pdf
    • https://cdn.shopify.com/s/files/1/0440/8741/0840/files/arteritis_temporalis_adalah.pdf
    • https://cdn.shopify.com/s/files/1/0433/3702/3641/files/saravali_astrology_book_in_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0436/5769/1289/files/advanced_computer_architecture_parallelism_scalability_programmability_kai_hwang.pdf
    • https://cdn.shopify.com/s/files/1/0432/7079/9510/files/fopudavu.pdf
    • https://cdn.shopify.com/s/files/1/0433/8978/0124/files/ronivajutetikukinomorapas.pdf
    • https://cdn.shopify.com/s/files/1/0429/6677/8009/files/double_digit_addition_and_subtraction_coloring_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12909571685.pdf
    • https://cdn.shopify.com/s/files/1/0436/0008/5160/files/viripa.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96672573922.pdf
    • https://cdn.shopify.com/s/files/1/0436/2846/2243/files/model_cerere_concediu_odihna.pdf
    • https://cdn.shopify.com/s/files/1/0431/4405/2885/files/craftsman_model_917-_287420.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_off000065ee.bin
03fa8c777f3f92e9776b1ed1dd541ec4db2ca9d9b9b053a83e5e4bed9fffbb61		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65EE 5140 bytes
font_01_sfnt_off0000776f.bin
d8d1921d3cda6253b9827deb357a2c756f54a42224e649362510666f5cb7d64d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x776F 10248 bytes

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