Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe296c9755d5d1c9…

MALICIOUS

PDF

44.7 KB Created: 2020-08-18 21:48:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f63b57b73b633249357d7019efd5f08 SHA-1: 9f6a49ed237105c4046fd0ef19bb7c0768f30862 SHA-256: fe296c9755d5d1c9a34e687411881ea9da05be73c5fad2c28182cd3ef3b27e5d
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=apprendre+%25C3%25A0+parler+portugais+pdf'. This URL is likely used to redirect the user to a malicious site. The document also contains a large number of external PDF links, many hosted on shopify.com, suggesting a link farm or SEO poisoning tactic to attract victims. No scripts were extracted from this sample.

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=apprendre+%25C3%25A0+parler+portugais+pdf
    • http://files.hannanicholeart.com/uploads/1/3/0/7/130738960/6653945.pdf
    • http://fevetij.simplyminttobe.com/uploads/1/3/2/8/132815028/66e4738.pdf
    • https://cdn.shopify.com/s/files/1/0430/9434/3834/files/chandni_bar_full_movie_free_480p.pdf
    • https://cdn.shopify.com/s/files/1/0437/7149/4554/files/92838162319.pdf
    • https://cdn.shopify.com/s/files/1/0437/6811/9445/files/76735245120.pdf
    • https://cdn.shopify.com/s/files/1/0428/1620/9059/files/gojorisojewenaxibimonoji.pdf
    • https://cdn.shopify.com/s/files/1/0433/7152/8344/files/48839730420.pdf
    • https://cdn.shopify.com/s/files/1/0428/4828/8935/files/bcs_theory_of_superconductivity_nptel.pdf
    • https://cdn.shopify.com/s/files/1/0432/6660/5211/files/nojakitu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0096/2967/files/83160774518.pdf
    • https://cdn.shopify.com/s/files/1/0434/1684/6488/files/chat_room_free_apps.pdf
    • https://cdn.shopify.com/s/files/1/0438/9847/0552/files/ignou_ba_public_administration_books.pdf
    • https://cdn.shopify.com/s/files/1/0436/3301/6982/files/64464800834.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70278744099.pdf
    • https://cdn.shopify.com/s/files/1/0428/9229/6358/files/lopibujazalutu.pdf
    • https://cdn.shopify.com/s/files/1/0434/7651/7014/files/3990559013.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_off00005f2f.bin
b91499e333589da5f51178a22f8ae65e45afbfee4ef4dc72764cd0a8e344de2a
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F2F 5316 bytes
font_01_sfnt_off000070bc.bin
ec33ccdb80b887bd3a92d7cbcdebc148133153f5f4260ee1732f337e5a860cbe
pdf-font-stream PDF embedded font (sfnt) at offset 0x70BC 11836 bytes
font_02_sfnt_off000095a5.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x95A5 4324 bytes