Malicious PDF — malware analysis report

Static analysis result for SHA-256 4bfaba0ed774e101…

MALICIOUS

PDF

41.5 KB Created: 2020-08-24 05:21:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 433ced12c9fe458c20d94592fcc76638 SHA-1: 395a0882a9ce802a060f1cae8aae84352f823a4a SHA-256: 4bfaba0ed774e10186df3509a2c5707ff2aadd289016c1cf05fc004f372830c2
160 Risk Score

Malware Insights

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

The PDF document contains a lure related to "CFA curriculum books 2019 pdf" and embeds numerous links. One of these links, "https://ttraff.com/pify?keyword=cfa+curriculum+books+2019+pdf", points to known malicious redirector infrastructure. The document's structure and content align with an advance-fee scam, aiming to trick users into clicking malicious links. No scripts were extracted from this sample.

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=cfa+curriculum+books+2019+pdf
    • http://zivesi.mountaintopartshop.com/uploads/1/3/1/0/131070161/vekapuze_tuperotojoduz_febijotexinebe_bobusuvipunan.pdf
    • http://lujuziv.kawarthalacrosse.com/uploads/1/3/2/6/132681513/ad4cbd51183cd.pdf
    • http://files.briannabelmonte.com/uploads/1/3/1/4/131483830/simawufuliwa.pdf
    • http://files.midwestaaoe.com/uploads/1/3/1/3/131398091/nuweporijapokek-bozikudes.pdf
    • https://cdn.shopify.com/s/files/1/0433/8178/4734/files/rekuvitodowut.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/90442425312.pdf
    • https://cdn.shopify.com/s/files/1/0427/7354/5116/files/17184968948.pdf
    • https://cdn.shopify.com/s/files/1/0428/9318/1081/files/zotuvigimozoz.pdf
    • https://cdn.shopify.com/s/files/1/0432/9593/2584/files/medication_adherence_self_efficacy_scale.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/95509007145.pdf
    • https://cdn.shopify.com/s/files/1/0430/5109/0071/files/11511280354.pdf
    • https://cdn.shopify.com/s/files/1/0431/0017/6544/files/warakojol.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_off000060c8.bin
4a07e3571d2f96f15f39193cd8644785bb02f999fc9b878bf5932e41e8375898		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60C8 5892 bytes
font_01_sfnt_off000074b6.bin
ff58f341fef98bc789eb2bda6c7c432819ad1edf34515274d945aabf00ccf984		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74B6 10716 bytes

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