Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f7066961a8b24cd…

MALICIOUS

PDF

41.6 KB Created: 2020-08-25 14:53:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 252358741da772152d56a5a777a7327c SHA-1: 729536b447b4ad577e95e5a05ab3daaa335f36dc SHA-256: 3f7066961a8b24cd4606eb4a32cb5d14182fccd79ee21f11fe4f83dd943c1765
130 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link redirects to a known malicious domain (ttraff.cc). This indicates a social engineering attempt to trick the user into visiting malicious sites, likely for further exploitation or credential harvesting. The presence of a 'download button' heuristic further supports this social engineering vector.

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.cc/pify?keyword=aadukalam+hd+video+song++tamil
    • http://lebavebo.colecoach.com/uploads/1/3/0/7/130775503/0440c53.pdf
    • http://files.thekeywithlt.com/uploads/1/3/0/7/130774990/kikebokumiw.pdf
    • http://files.runningfatchef.com/uploads/1/3/1/4/131411542/renesewonuza_jupolafepituke.pdf
    • http://lobos.streetbridgeinn.com/uploads/1/3/1/4/131453177/8beed93ea417d.pdf
    • http://files.infostationcorp.com/uploads/1/3/1/1/131164425/d5c36.pdf
    • https://cdn.shopify.com/s/files/1/0434/9011/5748/files/chew_wga_remover_for_windows_7.pdf
    • https://cdn.shopify.com/s/files/1/0439/1501/8392/files/principles_of_virology_4th_edition_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/2047/4779/files/fusinepunozalego.pdf
    • https://cdn.shopify.com/s/files/1/0432/0201/9487/files/bivokosatetojozob.pdf
    • https://cdn.shopify.com/s/files/1/0437/8705/9362/files/notejowozakifesinokowob.pdf
    • https://cdn.shopify.com/s/files/1/0433/5324/3806/files/famasamoririgulobudivol.pdf
    • https://cdn.shopify.com/s/files/1/0428/1974/7999/files/xefapiwenes.pdf
    • https://cdn.shopify.com/s/files/1/0435/1724/7640/files/interlinear_bible_greek_hebrew_english.pdf
    • https://cdn.shopify.com/s/files/1/0434/1877/9815/files/63206921713.pdf
    • https://cdn.shopify.com/s/files/1/0430/1747/0101/files/xutobibakadaverimaje.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/
    • https://cdn.shopify.com/s/files/1/0433/5324/3806/files/famasamoririgulobudi

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006341.bin
982b7a7a13ea8fa65354ad60f47f051a96a911331b32cc247accbf1c93472ba3
pdf-font-stream PDF embedded font (sfnt) at offset 0x6341 5256 bytes
font_01_sfnt_off00007507.bin
a01d6ac58d1a34a5e9b1d3db2eaa2f889d4535d513288ee600478514fd9cd61d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7507 10544 bytes