Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f1f9eb818473da6…

MALICIOUS

PDF

52.9 KB Created: 2020-08-17 03:57:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3db0150ed398f442b0cfaa2ec060b2bb SHA-1: 6d260e30c158290a5ee7f39aa7eed6adff6ab1d0 SHA-256: 9f1f9eb818473da64aa580635a40727444ddd414469011e0d2af70e5db385130
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a heuristic match for PDF_MALICIOUS_REDIRECTOR_LINK, pointing to the URL https://ttraff.ru/pify?keyword=ios+13+beta+installation+guide. This URL is part of a link farm designed to redirect users to malicious content. The document body also contains this URL, suggesting a lure for users to click on it, likely for phishing or malware distribution. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, further supporting the malicious intent of distributing traffic.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=ios+13+beta+installation+guide
    • http://files.mastercreatorsadventureretreat.com/uploads/1/3/1/4/131437091/bizitesukoratinov.pdf
    • http://gelewop.garfieldchristianfellowship.com/uploads/1/3/1/1/131163599/majelu_modorigo_makopezedinev_xiturobiva.pdf
    • http://files.artmentorshipab.com/uploads/1/3/1/4/131482916/riwiz.pdf
    • https://cdn.shopify.com/s/files/1/0433/3459/8809/files/antigona_gonzalez_english.pdf
    • https://cdn.shopify.com/s/files/1/0434/4017/7317/files/female_red_deer_crossword_answer.pdf
    • https://cdn.shopify.com/s/files/1/0439/4863/8363/files/pufewoxis.pdf
    • https://cdn.shopify.com/s/files/1/0434/4568/2328/files/33583779334.pdf
    • https://cdn.shopify.com/s/files/1/0429/1218/6531/files/19767627527.pdf
    • https://cdn.shopify.com/s/files/1/0433/8535/6449/files/brexit_2020.pdf
    • https://cdn.shopify.com/s/files/1/0433/1631/4277/files/barril_amontillado.pdf
    • https://cdn.shopify.com/s/files/1/0431/7957/3414/files/89599584829.pdf
    • https://cdn.shopify.com/s/files/1/0434/6521/2066/files/uk_bribery_act_guidance.pdf
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/walker_cinema_north_ogden.pdf
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/venuvalumotupuwewum.pdf
    • https://cdn.shopify.com/s/files/1/0437/1424/8857/files/81755424594.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007c66.bin
1d976e9a26e908279dbf93d7b00f554b5dc16e1fe34f4b66d5fb9cef5544a880
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C66 5192 bytes
font_01_sfnt_off00008e1b.bin
3e730dbfc4bac754a6ace4668631e9f241dc3e5eec4c5365c39f229a047cfc56
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E1B 10360 bytes
font_02_sfnt_off0000b1d1.bin
d4aae156ec6e8489d33afb6fad4be8c1315b5c882b5fb5fb5cd0fca9d06f1bf6
pdf-font-stream PDF embedded font (sfnt) at offset 0xB1D1 16084 bytes