Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b01280a2544d299…

MALICIOUS

PDF

63.3 KB Created: 2020-08-02 10:30:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 929d8cc690de506916d8edd231ba7dfc SHA-1: 32802e367b7545be26226e541d0181a217f41ffd SHA-256: 5b01280a2544d299c3f123da431d1ca5597d18ce4e41ab7cb592e856f6efb91a
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, https://ttraff.com/pify?keyword=powerman+5000+bombshell, is identified as a malicious redirector. This suggests the document is designed to lead users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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=powerman+5000+bombshell
    • http://files.noscopegaming.net/uploads/1/3/0/7/130739651/puperajub-vifoputap.pdf
    • http://files.americanwindweek.org/uploads/1/3/1/3/131381055/9978422.pdf
    • http://files.spaatthecolonnade.net/uploads/1/3/0/8/130814926/f0ca605e8407c4a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0436/1561/7182/files/29734131695.pdf
    • https://cdn.shopify.com/s/files/1/0435/8150/5695/files/kojukuwuxogatazep.pdf
    • https://cdn.shopify.com/s/files/1/0430/6770/3450/files/4235479516.pdf
    • https://cdn.shopify.com/s/files/1/0436/3144/4128/files/14878288433.pdf
    • https://cdn.shopify.com/s/files/1/0438/4695/9261/files/the_other_wes_moore_free.pdf
    • https://cdn.shopify.com/s/files/1/0427/4972/2790/files/51167028349.pdf
    • https://cdn.shopify.com/s/files/1/0430/9427/8293/files/99348473958.pdf
    • https://cdn.shopify.com/s/files/1/0432/9121/3990/files/25987330412.pdf
    • https://cdn.shopify.com/s/files/1/0440/6693/0840/files/65156387470.pdf
    • https://cdn.shopify.com/s/files/1/0434/4836/9319/files/94182539201.pdf
    • https://cdn.shopify.com/s/files/1/0432/2213/9041/files/62294984950.pdf
    • https://cdn.shopify.com/s/files/1/0432/8967/3883/files/kodukomasifawevasanet.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83142526711.pdf
    • https://cdn.shopify.com/s/files/1/0433/9938/1157/files/15213252454.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a7d0.bin
f4a8489c14648addacf2bac1b239b9419d3d1cbf5fecd702fc9fd870584f8523		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA7D0 5084 bytes
font_01_sfnt_off0000b8e5.bin
57404c320e3c02a86a865aaf30aa6c70982443948e804676d2d69da27a2fc763		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB8E5 12564 bytes
font_02_sfnt_off0000e183.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE183 4324 bytes

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