Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f701ffa9c623574…

MALICIOUS

PDF

41.8 KB Created: 2020-08-23 09:31:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40634e5f957a797f4d50e481c8fc7a5a SHA-1: 1b6447914a5d7832a9c03cb1fa48cc19f5e0269e SHA-256: 8f701ffa9c6235740cfddb145e01071785fc1276f12663045e7a5ffc64081999
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. This suggests a phishing or scam attempt designed to drive traffic to malicious infrastructure. The document body contains garbled text but includes the target URL, reinforcing the malicious intent.

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=bollandbranch+sheets+canada
    • http://podezan.ronnieaaronson.com/uploads/1/3/1/3/131398504/pidebuzom_jomemamidu.pdf
    • http://files.rivertwisthomestead.com/uploads/1/3/1/3/131381374/330512.pdf
    • https://cdn.shopify.com/s/files/1/0432/1555/2674/files/tebagom.pdf
    • https://cdn.shopify.com/s/files/1/0433/7503/4524/files/dosopekiwuvuzizijol.pdf
    • https://cdn.shopify.com/s/files/1/0431/3179/7668/files/sonic_world_chao_garden_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/6819/4978/files/7784729090.pdf
    • https://cdn.shopify.com/s/files/1/0432/3305/0779/files/5940786482.pdf
    • https://cdn.shopify.com/s/files/1/0430/8077/7882/files/tusuz.pdf
    • https://cdn.shopify.com/s/files/1/0429/5668/5468/files/context_clues_worksheets_for_grade_11.pdf
    • https://cdn.shopify.com/s/files/1/0433/5747/0872/files/digital_caliper_user_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/2937/2836/files/53577484431.pdf
    • https://cdn.shopify.com/s/files/1/0428/9078/9027/files/mixed_conditionals_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0434/0046/2503/files/advantages_and_disadvantages_of_absorption_costing.pdf
    • https://cdn.shopify.com/s/files/1/0431/3281/3473/files/78825958730.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_off0000667b.bin
6c3a95c88c2ce10a7c054fdf45c77e898d99acdc6b5451e2d04e39c5876cfc11
pdf-font-stream PDF embedded font (sfnt) at offset 0x667B 5216 bytes
font_01_sfnt_off00007823.bin
fd2533980b6127f03b7d88593dc9d8844a9679f1b5ab993f86167cc291c1da44
pdf-font-stream PDF embedded font (sfnt) at offset 0x7823 10164 bytes