Malicious PDF — malware analysis report

Static analysis result for SHA-256 32c77a376f202e02…

MALICIOUS

PDF

47.4 KB Created: 2020-08-24 15:01:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fc2088e9dfe8039f9f5ac5c2d07ff84 SHA-1: 5a2c5faef843e8bf7e9ca63998e7476b06a2406a SHA-256: 32c77a376f202e0216311b11ad30de60dd6655ba8eda5d53060e7adcd4a89fae
160 Risk Score

Malware Insights

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

The PDF file contains a lure for an advance-fee scam, specifically mentioning a 'subordinated loan in balance sheet'. It embeds numerous links, with one pointing to a known malicious redirector. The document's structure and content strongly suggest a phishing attempt designed to trick users into clicking malicious links, likely leading to further compromise.

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.ru/pify?keyword=subordinated+loan+in+balance+sheet
    • http://files.stresswiseatwork.co.uk/uploads/1/3/1/6/131607163/faxuvavorano_rasunab_saroxarutenig.pdf
    • http://files.beyouglobalnz.com/uploads/1/3/0/7/130738712/49e4fd9c.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71860998709.pdf
    • https://cdn.shopify.com/s/files/1/0430/4715/7911/files/9967262181.pdf
    • https://cdn.shopify.com/s/files/1/0433/3902/2485/files/duzotanevebinepasimaje.pdf
    • https://cdn.shopify.com/s/files/1/0432/0873/6928/files/14996061989.pdf
    • https://cdn.shopify.com/s/files/1/0430/3811/3955/files/nuxomokopakosemukodan.pdf
    • https://cdn.shopify.com/s/files/1/0431/2865/1938/files/gekimamozivumewapusobexix.pdf
    • https://cdn.shopify.com/s/files/1/0430/3942/4669/files/27258140066.pdf
    • https://cdn.shopify.com/s/files/1/0433/6487/6444/files/wevojesurejegejafosoburak.pdf
    • https://cdn.shopify.com/s/files/1/0444/5339/6647/files/tp_link_archer_vr400_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/9262/2998/files/13174326330.pdf
    • https://cdn.shopify.com/s/files/1/0440/6598/0581/files/75889068819.pdf
    • https://cdn.shopify.com/s/files/1/0434/2585/7703/files/bimibelibovob.pdf
    • https://cdn.shopify.com/s/files/1/0428/7247/1718/files/what_does_enchantment_mean.pdf
    • https://cdn.shopify.com/s/files/1/0428/8688/9625/files/nibud.pdf
    • https://cdn.shopify.com/s/files/1/0430/7910/6724/files/bepopasuxidude.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_off00007ab5.bin
8fb5cddbf093dda1e5b9a5828d35f5d50077179f37ab63b31f5ba73fec783839
pdf-font-stream PDF embedded font (sfnt) at offset 0x7AB5 5272 bytes
font_01_sfnt_off00008c85.bin
81630f0856cbbd16984ca05a35d1aa7b0120149e1b1afab907d10a3a3becfe61
pdf-font-stream PDF embedded font (sfnt) at offset 0x8C85 10796 bytes