Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a6fb6a4dee7c79c…

MALICIOUS

PDF

41.8 KB Created: 2020-08-18 12:58:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4673204a00ac53ea215a02f0215e3eba SHA-1: 59893841a9056db7626c4e7e18d0c703a8ecf6ac SHA-256: 7a6fb6a4dee7c79c98577ba8baf37dbc79ecaf7acef1f62d54e6187f8fb76a47
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, many of which point to Shopify-hosted PDF files. One of these links, 'https://ttraff.cc/pify?keyword=mariam+khan+reporting+live+story+after+leap', is known to redirect to malicious infrastructure. This suggests a link farm or SEO poisoning attack designed to lure users to malicious content.

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=mariam+khan+reporting+live+story+after+leap
    • http://birudej.joyfulsoundchoir.us/uploads/1/3/0/7/130775320/98140.pdf
    • http://files.natuurvakantiedenemarken.nl/uploads/1/3/1/3/131383959/187133.pdf
    • http://falula.knockoutthepests.com/uploads/1/3/1/3/131398455/sibubigoju_paxobeta_danuzirader.pdf
    • http://xenid.eleven1church.com/uploads/1/3/1/1/131164250/faxove.pdf
    • http://files.thewhoresofyore.com/uploads/1/3/1/3/131380001/xatirez.pdf
    • https://cdn.shopify.com/s/files/1/0432/5838/0450/files/29429321104.pdf
    • https://cdn.shopify.com/s/files/1/0430/9870/1977/files/54149516745.pdf
    • https://cdn.shopify.com/s/files/1/0437/6851/2669/files/algebraic_expressions_and_identities_class_8_extra_questions.pdf
    • https://cdn.shopify.com/s/files/1/0437/6988/8920/files/38660937220.pdf
    • https://cdn.shopify.com/s/files/1/0445/6205/5332/files/anticipatory_bail_in_up_notification.pdf
    • https://cdn.shopify.com/s/files/1/0431/8891/2290/files/tezenamokanokowo.pdf
    • https://cdn.shopify.com/s/files/1/0429/8866/7039/files/melev.pdf
    • https://cdn.shopify.com/s/files/1/0437/2201/4871/files/mujir.pdf
    • https://cdn.shopify.com/s/files/1/0431/5892/9570/files/1462763223.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_off000063d3.bin
56c939b2b81b9d0fafac6168df94a774aa6f8678522290e24c8fae043980b6e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63D3 5548 bytes
font_01_sfnt_off000076a5.bin
9f13ad39b44679169caf1382b7b4f5c486cf9a478a9b9272a7f008110e43f9bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76A5 10316 bytes

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