Malicious PDF — malware analysis report

Static analysis result for SHA-256 e521c223fe1179c9…

MALICIOUS

PDF

43.9 KB Created: 2020-08-07 22:59:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6365056c699393874c571cb9a1dcebef SHA-1: 2fe5973a8666b0d6b291650ab747bab38ffbe61c SHA-256: e521c223fe1179c993e0c693367889c0c158b98dc0dabd4a12f01fad628f9e76
160 Risk Score

Malware Insights

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

The PDF file contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.cc/pify?keyword=corporate+finance+and+risk+management+pdf'. The document body, though heavily obfuscated, contains text suggesting a lure related to 'corporate finance and risk management pdf'. This, combined with the heuristic firings for a malicious redirector and an advance-fee scam lure, indicates the document is designed to trick users into visiting malicious sites, likely as part of an advance-fee fraud scheme.

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.cc/pify?keyword=corporate+finance+and+risk+management+pdf
    • http://files.ethelbustamante.net/uploads/1/3/1/4/131406356/7012749.pdf
    • http://zuvawatos.wastecap.org/uploads/1/3/0/9/130969204/36a7390418dc5b.pdf
    • http://files.samgevers.com/uploads/1/3/0/8/130813841/2006931.pdf
    • http://files.styer-fitzgerald.net/uploads/1/3/1/1/131164446/86851de02847b1.pdf
    • http://dokisaz.queenofthewaves.net/uploads/1/3/2/7/132740900/jexisowerawemug_fovor_vudazezekurup_tusogujomelaxef.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65545430121.pdf
    • https://cdn.shopify.com/s/files/1/0431/7003/7924/files/balerukojikemudevin.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dagezaluvonanapukinuwit.pdf
    • https://cdn.shopify.com/s/files/1/0433/5190/0310/files/rujelibuja.pdf
    • https://cdn.shopify.com/s/files/1/0432/3550/8381/files/dusazonunawas.pdf
    • https://cdn.shopify.com/s/files/1/0439/5096/4904/files/veronojawalojugorurasu.pdf
    • https://cdn.shopify.com/s/files/1/0432/0346/1283/files/job_acceptance_letter_from_employer.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49726552648.pdf
    • https://cdn.shopify.com/s/files/1/0428/9911/2099/files/woxilenavabamonon.pdf
    • https://cdn.shopify.com/s/files/1/0440/1260/1502/files/dekigegunodu.pdf
    • https://cdn.shopify.com/s/files/1/0434/5161/3336/files/tagawixatilanegabug.pdf
    • https://cdn.shopify.com/s/files/1/0429/2775/1321/files/vekijilufegozolet.pdf
    • https://cdn.shopify.com/s/files/1/0431/7564/1247/files/kopebofe.pdf
    • https://cdn.shopify.com/s/files/1/0429/9853/0201/files/kukenemenabal.pdf
    • https://cdn.shopify.com/s/files/1/0433/9033/7189/files/sifepugutijo.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_off00006cb0.bin
2e3ad09078075127c1f658f011120ab8219bb92ecc5286188689bbfa8cf62af5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CB0 5412 bytes
font_01_sfnt_off00007f05.bin
2b2fc2a174755a3e1c5268b6b928edb63be3aa8dec6e872b539fcc07d9a60647		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F05 10208 bytes

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