Malicious PDF — malware analysis report

Static analysis result for SHA-256 c84795f9b53bbbb3…

MALICIOUS

PDF

42.9 KB Created: 2020-08-22 02:57:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 509c9ca41698e97b59727ba6ddf5fb38 SHA-1: 55fb24b353a6eeda3cf888bf0224af7b91992869 SHA-256: c84795f9b53bbbb37958efae91ba9eb0c46ffa84a0a7d546e6b32ced1bade407
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=game+guardian+without+root+apk'. This URL is likely used to deliver a malicious payload or redirect the user to a phishing site. The document also contains a large number of embedded links to various PDF files hosted on Shopify and other domains, suggesting a link farm or SEO poisoning tactic to improve search engine ranking for malicious content. 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.ru/pify?keyword=game+guardian+without+root+apk
    • http://files.peplumpineapples.com/uploads/1/3/2/6/132681665/tiferuvulokerewi.pdf
    • http://files.jelopez-stage.com/uploads/1/3/1/3/131380771/843bb9c64.pdf
    • http://pivovu.gordonstounartandphotography.com/uploads/1/3/0/7/130738948/mowazeworat.pdf
    • http://vedav.whiterabbittarot.com/uploads/1/3/1/6/131606875/nojasisun.pdf
    • http://bugazoku.nycsigmakappa.com/uploads/1/3/2/8/132815961/2919508.pdf
    • https://cdn.shopify.com/s/files/1/0451/9510/0311/files/rational_functions_guided_notes.pdf
    • https://cdn.shopify.com/s/files/1/0434/8385/7053/files/43306096578.pdf
    • https://cdn.shopify.com/s/files/1/0431/3831/8487/files/24671938685.pdf
    • https://cdn.shopify.com/s/files/1/0430/8631/5682/files/55970109149.pdf
    • https://cdn.shopify.com/s/files/1/0430/3332/9817/files/68041215076.pdf
    • https://cdn.shopify.com/s/files/1/0437/8548/6485/files/xopuneguzugajexuwij.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zutazalurofesavasa.pdf
    • https://cdn.shopify.com/s/files/1/0430/7487/9641/files/toninokuxafatevinozig.pdf
    • https://cdn.shopify.com/s/files/1/0431/0512/4516/files/dapawodujezutoti.pdf
    • https://cdn.shopify.com/s/files/1/0430/7560/0535/files/retidewepobutiture.pdf
    • https://cdn.shopify.com/s/files/1/0430/1750/2869/files/pisogikawiwina.pdf
    • https://cdn.shopify.com/s/files/1/0431/8153/9489/files/4292353410.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_off00005c3e.bin
1aa48640d33011f7e28fc146c63b825e7eae39fa4f16a25580a8f2379fc0ca49
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C3E 5232 bytes
font_01_sfnt_off00006df3.bin
1b81ddce063598a1cea5428c05c70386c82df8d2e29ce539687a44a7f49a2dcd
pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF3 10084 bytes
font_02_sfnt_off00009076.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x9076 4324 bytes