Malicious PDF — malware analysis report

Static analysis result for SHA-256 772265b6420bdec9…

MALICIOUS

PDF

63.6 KB Created: 2020-07-28 06:32:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01d4b129592253fba8f3b943815e6c8d SHA-1: 06ed277cf2fe21af44ff141d05fc51c9e7a9bef4 SHA-256: 772265b6420bdec9d554a32df5764c981a591b60d2b4b0ff058220459383edd1
194 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which points to a known malicious redirector. Heuristics indicate this is an advance-fee scam lure, presenting itself as free software to entice clicks. The document body, though heavily obfuscated, contains keywords related to technical analysis software and the authoring application suggests it was generated programmatically.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=intraday+technical+analysis+software+free
    • http://files.terisloatfineart.com/uploads/1/3/1/4/131437766/lavukixorebo-rofuwep-mejixeve.pdf
    • http://files.kgnmcjustonfire.com/uploads/1/3/2/6/132695200/jorebuxenora.pdf
    • http://files.teshtalk.com/uploads/1/3/1/3/131381480/puzik.pdf
    • http://files.trinityprespca.org/uploads/1/3/0/8/130813827/kaferafusobifem_suvig.pdf
    • http://files.chromechasersflyfishing.com/uploads/1/3/1/8/131858791/6178122.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0434/4581/3413/files/3102746702.pdf
    • https://cdn.shopify.com/s/files/1/0433/0458/3318/files/42016208721.pdf
    • https://cdn.shopify.com/s/files/1/0433/5150/7112/files/vodimazefomekowutekoza.pdf
    • https://cdn.shopify.com/s/files/1/0429/9600/7065/files/xuxas.pdf
    • https://cdn.shopify.com/s/files/1/0431/0528/8349/files/49167894222.pdf
    • https://cdn.shopify.com/s/files/1/0430/3880/2073/files/rifomikutuxufokuxikilimus.pdf
    • https://cdn.shopify.com/s/files/1/0431/3900/6632/files/37154170945.pdf
    • https://cdn.shopify.com/s/files/1/0431/2501/4685/files/vajizidixejipagopolomekux.pdf
    • https://cdn.shopify.com/s/files/1/0432/0195/3952/files/68127054758.pdf
    • https://cdn.shopify.com/s/files/1/0431/4752/6305/files/rugobotiwinemaripu.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/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a6a0.bin
dd8495e2d47e13c00322b0a2d7fb1f41278f0625496b56e203a900acfa29fee6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA6A0 5028 bytes
font_01_sfnt_off0000b7b7.bin
5b9a51d567310e5860edd348c5cf6c36a02e457587c26c893670ed973c508403		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB7B7 10268 bytes
font_02_sfnt_off0000dafd.bin
6fd5587b74d50700f4762e3a2fbc8d308b8de47ca9aa40373b0a22a5d92b99c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDAFD 16348 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.