Malicious PDF — malware analysis report

Static analysis result for SHA-256 37082cd610414347…

MALICIOUS

PDF

50.8 KB Created: 2020-08-12 23:08:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f3da7699c79b02679c43dd3b16056dc5 SHA-1: dd77c9a06b9da6ebf1535219f32da6c26ecc4d53 SHA-256: 37082cd610414347a30bd26e6f1e2f8756d45b67fff9625c67d212d606932630
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple embedded links, with one identified as a malicious redirector. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' strongly suggests the document's purpose is to trick users into clicking these links under the guise of a lottery or parcel delivery scam. The primary malicious URL identified is https://ttraff.com/wb?keyword=un%20peacemaking%20pdf, which likely leads to further malicious content.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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/wb?keyword=un%20peacemaking%20pdf
    • http://files.gsfaria.com/uploads/1/3/0/7/130740323/a365f4f1556.pdf
    • http://files.osolnikmachinery.com/uploads/1/3/1/3/131381919/fiwexifanemajazufo.pdf
    • http://files.codyscustomcabinets.com/uploads/1/3/0/8/130814339/netalek-lezoxovewemage-namegar-tenusazuforaw.pdf
    • http://files.andrezsemini.com/uploads/1/3/1/1/131164009/8023570.pdf
    • https://cdn.shopify.com/s/files/1/0434/6285/2761/files/gujarati_bible_in_format.pdf
    • https://cdn.shopify.com/s/files/1/0433/4285/6345/files/java_tutorials_point_download_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/7165/8392/files/82367003616.pdf
    • https://cdn.shopify.com/s/files/1/0448/5431/3122/files/animal_classification_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0434/9257/3334/files/55245882451.pdf
    • https://cdn.shopify.com/s/files/1/0440/9245/7112/files/wiwodakumabuzubobikid.pdf
    • https://cdn.shopify.com/s/files/1/0436/5395/5742/files/pusisiwa.pdf
    • https://cdn.shopify.com/s/files/1/0431/9772/6880/files/free_printable_october_2020_calendar.pdf
    • https://cdn.shopify.com/s/files/1/0435/3638/4149/files/73267463588.pdf
    • https://cdn.shopify.com/s/files/1/0432/1722/3847/files/83803256787.pdf
    • https://cdn.shopify.com/s/files/1/0432/2204/0731/files/sabiviw.pdf
    • https://cdn.shopify.com/s/files/1/0429/9502/4023/files/wordly_wise_3000_book_5_lesson.pdf
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/23862838577.pdf
    • https://cdn.shopify.com/s/files/1/0433/0553/3604/files/bamusa.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_off000089cf.bin
84db5e082a7d6ebd087cf6ac4b514581b64aa6102492680de470e9c46d146d4a
pdf-font-stream PDF embedded font (sfnt) at offset 0x89CF 5224 bytes
font_01_sfnt_off00009b83.bin
c948112992a73480997d7b1ac69dbd60b48efa3e4602a009797c9c138d0f68b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x9B83 10180 bytes