Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ba8e830fdc0cb03…

MALICIOUS

PDF

53.6 KB Created: 2020-08-10 04:41:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1d63aaf2c05d0966a28a990ae4d94dd2 SHA-1: 793fcdc70e7f92605743024ba9686a204c24e500 SHA-256: 7ba8e830fdc0cb03d6a91bbaf0b0cceddba277d7ce35eff049a5533aed0418d9
160 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains URLs that are part of a link farm, suggesting a lure to external malicious content. The presence of 'blackrock alternative investments pdf' in the document body and the redirector URL indicates a potential phishing or advance-fee scam targeting financial information or payments.

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=blackrock+alternative+investments+pdf
    • http://files.fatunicorncreations.com/uploads/1/3/1/8/131857758/lojonasopevotogi.pdf
    • http://files.jennyshepherdphotography.com/uploads/1/3/0/8/130814682/e6f3c54.pdf
    • http://xesizun.outsideincounseling.org/uploads/1/3/2/6/132696414/185280.pdf
    • https://cdn.shopify.com/s/files/1/0431/2658/7549/files/fatejojopodadixizadifogug.pdf
    • https://cdn.shopify.com/s/files/1/0440/5536/3734/files/reverse_a_string_in_c.pdf
    • https://cdn.shopify.com/s/files/1/0432/7348/6496/files/98085627251.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/potiwabuvufepatene.pdf
    • https://cdn.shopify.com/s/files/1/0445/4537/6420/files/eval_command_dbm.pdf
    • https://cdn.shopify.com/s/files/1/0429/0471/5427/files/wopotavodadofela.pdf
    • https://cdn.shopify.com/s/files/1/0435/5201/4495/files/what_is_working_capital_management.pdf
    • https://cdn.shopify.com/s/files/1/0440/6919/1832/files/architectural_design_conceptualization.pdf
    • https://cdn.shopify.com/s/files/1/0428/1889/6038/files/gatikokowo.pdf
    • https://cdn.shopify.com/s/files/1/0435/0024/1061/files/lulep.pdf
    • https://cdn.shopify.com/s/files/1/0434/0118/3384/files/fosunumodagavalulabikejek.pdf
    • https://cdn.shopify.com/s/files/1/0432/7679/6057/files/41082887079.pdf
    • https://cdn.shopify.com/s/files/1/0432/6984/9246/files/63109258900.pdf
    • https://cdn.shopify.com/s/files/1/0437/4691/8551/files/libro_de_centrales_electricas.pdf
    • https://cdn.shopify.com/s/files/1/0434/9162/3074/files/florida_breach_of_contract_complaint.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000083b4.bin
52331bd02a84fa82a291daa3f9987a9d552457a2f470688291de497343471071		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83B4 5260 bytes
font_01_sfnt_off0000957b.bin
2c020163a2212116713c319144caf95ae2c2c4dc3b55f87c1066d0da5522f0d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x957B 10944 bytes
font_02_sfnt_off0000bae0.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBAE0 4324 bytes

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