Malicious PDF — malware analysis report

Static analysis result for SHA-256 2970f012dd8c4565…

MALICIOUS

PDF

43.9 KB Created: 2020-08-25 14:22:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e56ae6b23c64fe2c667566d99bfc5303 SHA-1: 275710b4fb04a8c09f310beb43b43f24ad32cdd5 SHA-256: 2970f012dd8c4565098fe65e88f5183944a1885cc57fb23b159d2fbae48dfee3
130 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating an attempt to lead the user to a harmful website. The document body explicitly contains the URL 'https://ttraff.com/pify?keyword=school+blank+calendar+templates', which is flagged as a malicious redirector. This suggests the document's primary purpose is to trick users into visiting this malicious URL, likely for phishing or malware distribution.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=school+blank+calendar+templates
    • http://files.agriculturallandservices.com/uploads/1/3/1/4/131455475/5791440.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65233410578.pdf
    • https://cdn.shopify.com/s/files/1/0433/5766/7487/files/buchungsstze_bungsaufgaben.pdf
    • https://cdn.shopify.com/s/files/1/0435/5463/5937/files/hematology_test_procedure.pdf
    • https://cdn.shopify.com/s/files/1/0457/6899/9078/files/o_mere_bhole_jai_bhandari_ringtone.pdf
    • https://cdn.shopify.com/s/files/1/0433/6487/6444/files/dabuwudub.pdf
    • https://cdn.shopify.com/s/files/1/0434/8909/9938/files/wunutiwujosovorako.pdf
    • https://cdn.shopify.com/s/files/1/0431/2973/3282/files/20309227918.pdf
    • https://cdn.shopify.com/s/files/1/0433/5458/7295/files/gifudoduzorowakiguvazupo.pdf
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/25045885659.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57355052908.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_off0000591f.bin
3252ff8c00cc115d46dd1dd6a4588c6fc1f2039664c7932bbb4e462a7cc81060		 pdf-font-stream PDF embedded font (sfnt) at offset 0x591F 5620 bytes
font_01_sfnt_off00006bf6.bin
d1153ea79c4e6e874042a985e3b5be6e674c43687317f37b62c0b2582709a6b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BF6 9920 bytes
font_02_sfnt_off00008e29.bin
d8a1a34de14a7b8fce5e51635835121d353d188f9ac9ce1e11538509fd4c5cdc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E29 16060 bytes

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