Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7a1a0fb2e6aaaed…

MALICIOUS

PDF

45.8 KB Created: 2020-08-07 15:02:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e6251e83cb521ff422a43b0b9c8aa97 SHA-1: 07b7b491c2bd184846a3e04f06a87711d56e1e5c SHA-256: e7a1a0fb2e6aaaed3e7551ac2f1ad75eb854fbed281adde345d72a861e851332
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain, ttraff.com. This indicates a link farm or SEO spam tactic designed to lure users to malicious infrastructure. The document body text is largely garbled but contains the phrase 'Qualities of a good geography teacher pdf', likely a lure to encourage clicks on the embedded 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.com/pify?keyword=qualities+of+a+good+geography+teacher+pdf
    • http://files.lukasstanley.com/uploads/1/3/1/4/131438180/5bb0b24.pdf
    • http://files.endurancepilatesandyoga.com/uploads/1/3/0/9/130969061/3ca0fbc.pdf
    • http://files.volvalis.net/uploads/1/3/0/7/130774979/wipogi.pdf
    • http://files.madisoncommunityband.org/uploads/1/3/2/6/132695830/9653256.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/voxetevew.pdf
    • https://cdn.shopify.com/s/files/1/0440/4045/4294/files/76190687082.pdf
    • https://cdn.shopify.com/s/files/1/0429/8421/0583/files/53439193447.pdf
    • https://cdn.shopify.com/s/files/1/0435/1269/2895/files/vinayaka_vratha_katha_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7501/8662/files/90185358413.pdf
    • https://cdn.shopify.com/s/files/1/0433/8014/6343/files/pipusasanuduketimefat.pdf
    • https://cdn.shopify.com/s/files/1/0437/5104/7329/files/68602425868.pdf
    • https://cdn.shopify.com/s/files/1/0433/3626/9983/files/popatebaxikasidi.pdf
    • https://cdn.shopify.com/s/files/1/0430/0177/4233/files/jewuwijiparugebuw.pdf
    • https://cdn.shopify.com/s/files/1/0428/5526/8519/files/bsc_3rd_year_chemistry_notes_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/4405/1864/files/pumikutuwum.pdf
    • https://cdn.shopify.com/s/files/1/0434/9945/4628/files/32654231760.pdf
    • https://cdn.shopify.com/s/files/1/0440/0598/2366/files/gujererokexoxafavidosikug.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sitadekekogog.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_off00006709.bin
56dfd6e327d6166ee04020b00b1c31868ed808245fcb8924f9930103550db396
pdf-font-stream PDF embedded font (sfnt) at offset 0x6709 5356 bytes
font_01_sfnt_off0000795f.bin
8fd2b0cdf266d3dcc8e27cde519ca23dfa2052fc1acf48db463ec6bb3d5715a7
pdf-font-stream PDF embedded font (sfnt) at offset 0x795F 10076 bytes
font_02_sfnt_off00009bdc.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x9BDC 4324 bytes