Malicious PDF — malware analysis report

Static analysis result for SHA-256 e99194501c7ec113…

MALICIOUS

PDF

43.1 KB Created: 2020-08-23 10:08:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5435c06916199c464550f9d7a72171b2 SHA-1: 77861efa2209dddce5e717381e3b97a211231698 SHA-256: e99194501c7ec113e382c6134e2a35f1a802ea6195cec55a9cb5e02d856170e3
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, characteristic of a link farm. One of these links, 'https://ttraff.cc/pify?keyword=mi+box+android+tv+walmart+canada', is identified as a malicious redirector. This suggests the document is part of a campaign to lure users to malicious sites, potentially for phishing or malware distribution. The presence of numerous Shopify links, some benign and some potentially part of the farm, indicates an attempt to obscure the malicious destination.

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=mi+box+android+tv+walmart+canada
    • http://files.groundstonefarm.com/uploads/1/3/1/8/131871424/kurir.pdf
    • https://cdn.shopify.com/s/files/1/0438/4355/1392/files/ielts_writing_task_1_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/6187/7665/files/92099639138.pdf
    • https://cdn.shopify.com/s/files/1/0431/8865/0135/files/79503369749.pdf
    • https://cdn.shopify.com/s/files/1/0437/2067/1384/files/43248491785.pdf
    • https://cdn.shopify.com/s/files/1/0430/9113/2567/files/18832820082.pdf
    • https://cdn.shopify.com/s/files/1/0433/5550/4794/files/95144266367.pdf
    • https://cdn.shopify.com/s/files/1/0434/8300/5093/files/puzepiwipetokabizakonafus.pdf
    • https://cdn.shopify.com/s/files/1/0430/2376/1571/files/68006819060.pdf
    • https://cdn.shopify.com/s/files/1/0440/5267/6773/files/95328718348.pdf
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/39208093740.pdf
    • https://cdn.shopify.com/s/files/1/0434/4283/1522/files/let_it_go_piano_easy_sheet_music.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_off00006aec.bin
8be35fa1e6e00122b8a4158dd0735224f57fd71e4fd4ef97602dcb4085315bca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AEC 5272 bytes
font_01_sfnt_off00007cd2.bin
cf58459f75d8987ca64dbfd8d0db9afffbd63371c586f91df490540ccf8701e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CD2 10260 bytes

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