Malicious PDF — malware analysis report

Static analysis result for SHA-256 45091d37ff5bcd3d…

MALICIOUS

PDF

40.5 KB Created: 2020-08-26 12:00:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c6275e816dc8d777819ae296d2cb412a SHA-1: bf0ce53d55420f9dda050d22ed215a30870a74f3 SHA-256: 45091d37ff5bcd3d78b29e912c4e0a9218f8f745fe09ddad7334e7c582a69538
160 Risk Score

Malware Insights

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

The PDF file contains a lure related to an 'I-129f cover letter' and includes numerous links, one of which points to a known malicious redirector. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' strongly suggests the document's purpose is to trick users into a financial scam. The embedded links, particularly the one to 'ttraff.com', are likely intended to lead the user to a malicious site.

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/pify?keyword=i+129f+cover+letter+address+of+filing+location
    • http://files.sgcaphilly.com/uploads/1/3/2/3/132303316/julatewogoze.pdf
    • http://files.rivervalleyrevenge.com/uploads/1/3/0/8/130814351/6570079.pdf
    • https://cdn.shopify.com/s/files/1/0434/0137/9996/files/xewogofozositixepi.pdf
    • https://cdn.shopify.com/s/files/1/0429/8273/6031/files/sistem_pencernaan_manusia_lengkap.pdf
    • https://cdn.shopify.com/s/files/1/0431/6836/6760/files/suxawowewedorimexir.pdf
    • https://cdn.shopify.com/s/files/1/0440/7577/8198/files/ssc_stenographer_grade_c_and_d_syllabus_2020.pdf
    • https://cdn.shopify.com/s/files/1/0432/1338/9992/files/macbook_air_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/1055/5041/files/ripuxatijenidibi.pdf
    • https://cdn.shopify.com/s/files/1/0433/7231/4778/files/anonymous_external_attack.pdf
    • https://cdn.shopify.com/s/files/1/0429/3269/9292/files/jimeketajusitigi.pdf
    • https://cdn.shopify.com/s/files/1/0435/0686/0187/files/net10_mobile_hotspot.pdf
    • https://cdn.shopify.com/s/files/1/0438/4918/7493/files/63902934322.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/duwaxufezemurogagur.pdf
    • https://cdn.shopify.com/s/files/1/0433/1952/5534/files/60453079485.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_off00005f35.bin
361d8d418269537635d29212d2c5184b94b97db3f6d790cca90d621d005314a3
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F35 5528 bytes
font_01_sfnt_off00007211.bin
545fac253d6e709aef0eaa171586275b6cc3a2ca414d2bb151f2559afecda1d4
pdf-font-stream PDF embedded font (sfnt) at offset 0x7211 10216 bytes