Malicious PDF — malware analysis report

Static analysis result for SHA-256 79e960ae8c93c55f…

MALICIOUS

PDF

37.3 KB Created: 2020-08-02 23:10:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4072282ca9bf1c8514a2e2d7e0988d2a SHA-1: 5cbdfa296c296b0bb09806c2af2f59a3348a561e SHA-256: 79e960ae8c93c55fd48869c7030ea4fcdd6f3d0b6208d9eaa4b9459f6a83465f
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a link farm. One of these links, 'https://ttraff.cc/pify?keyword=talina+ann+zsido', points to a known malicious redirector. The presence of numerous external links suggests an attempt to lure users to potentially harmful sites, likely for phishing or malware delivery.

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=talina+ann+zsido
    • http://files.mkalust.com/uploads/1/3/1/3/131398129/5383434.pdf
    • http://files.tresasbridal.com/uploads/1/3/1/6/131637325/mavesafesuto-judebafetuser-bikix-newasewuduse.pdf
    • http://files.whistleractiverehab.com/uploads/1/3/0/7/130776069/sudekaranuzi_kubotesasezibu_xetusenowul.pdf
    • https://cdn.shopify.com/s/files/1/0433/9305/6933/files/zibibegifaxe.pdf
    • https://cdn.shopify.com/s/files/1/0428/2338/5247/files/vukexewudazegazotaku.pdf
    • https://cdn.shopify.com/s/files/1/0432/6778/4864/files/josowumenokovejegatipu.pdf
    • https://cdn.shopify.com/s/files/1/0437/0006/0310/files/diamond_video_capture.pdf
    • https://cdn.shopify.com/s/files/1/0432/7574/7491/files/59889333309.pdf
    • https://cdn.shopify.com/s/files/1/0433/7991/6963/files/35748742394.pdf
    • https://cdn.shopify.com/s/files/1/0429/8519/3625/files/xawikawibuninojapulatali.pdf
    • https://cdn.shopify.com/s/files/1/0435/3739/9957/files/persona_5_red_panel.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/test_1879eb6a-339e-4d45-a409-571cd94a4742.pdf?v=1594212285
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luzugojozawok.pdf
    • https://cdn.shopify.com/s/files/1/0433/8129/3221/files/titutowawal.pdf
    • https://cdn.shopify.com/s/files/1/0435/6967/6451/files/75320589702.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_off00005568.bin
d8d291847baecf6b7052ebb0ab5144f36d68a2cd71d1d253e869d5236b52f9d9
pdf-font-stream PDF embedded font (sfnt) at offset 0x5568 4720 bytes
font_01_sfnt_off0000658a.bin
160daded37c3f2e0e1f63e1e377370591f3fd6676545930fdb0067ac38051575
pdf-font-stream PDF embedded font (sfnt) at offset 0x658A 10376 bytes