Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d47da832a27593b…

MALICIOUS

PDF

60.1 KB Created: 2020-08-31 11:32:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 08414584ee44db366f8637a477203a42 SHA-1: e78118e7a1934608fb19e67cea485bbee69a3826 SHA-256: 5d47da832a27593b40381fe0ff5f09822517f2e65c72ea3ae29034f761693ec6
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged as malicious by a machine learning classifier and contains a large number of embedded links, with one specifically identified as a known malicious redirector. The presence of numerous links, including one to a potentially malicious URL, suggests an attempt to direct users to harmful content. No scripts were extracted, but the PDF structure itself indicates a malicious intent to redirect users.

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.cc/wix?keyword=%25D0%25BF%25D1%2583%25D1%2582%25D1%258C+%25D1%258D%25D0%25BC%25D0%25B8%25D1%2580%25D0%25B0+10+%25D1%2581%25D0%25B5%25D1%2580%25D0%25B8%25D1%258F+%25D1%258E%25D1%2582%25D1%2583%25D0%25B1
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/7025/9357/files/face_app_age_filter.pdf
    • https://cdn.shopify.com/s/files/1/0432/4907/4336/files/bolijorigiw.pdf
    • https://cdn.shopify.com/s/files/1/0448/2813/1485/files/difafiloruzilemof.pdf
    • https://cdn.shopify.com/s/files/1/0432/4281/5643/files/29302573059.pdf
    • https://cdn.shopify.com/s/files/1/0434/2448/1431/files/uniraj_b._ed_exam_form_2019.pdf
    • https://cdn.shopify.com/s/files/1/0429/9948/0473/files/nivove.pdf
    • https://cdn.shopify.com/s/files/1/0430/6976/7842/files/20234257046.pdf
    • https://cdn.shopify.com/s/files/1/0447/1577/0012/files/43691063322.pdf
    • https://cdn.shopify.com/s/files/1/0428/6968/6431/files/1712411831.pdf
    • https://cdn.shopify.com/s/files/1/0437/8502/7745/files/factory_accounting_rules.pdf
    • https://cdn.shopify.com/s/files/1/0430/5167/9893/files/char_broil_propane_grill_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/6237/0210/files/pebigole.pdf
    • https://cdn.shopify.com/s/files/1/0433/6081/3208/files/deep_vein_thrombosis_definition.pdf
    • https://cdn.shopify.com/s/files/1/0432/8508/6364/files/gifataxufofulukadide.pdf
    • https://cdn.shopify.com/s/files/1/0433/9436/7644/files/genetics_from_genes_to_genomes.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/62042090741.pdf
    • https://cdn.shopify.com/s/files/1/0436/0952/2339/files/xolunatuwimovemu.pdf
    • https://cdn.shopify.com/s/files/1/0430/1075/2663/files/apache_server_for_windows_7.pdf
    • https://cdn.shopify.com/s/files/1/0429/8270/3257/files/vorabaxixipozorix.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009f62.bin
7d2bda70f9b08270eea6e746b8f21f93dd6238e5aeb0fbe86fad9faf7bb05b9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F62 5796 bytes
font_01_sfnt_off0000b316.bin
d9e92f21f9a20ca01ded05758e9f0b1107471938b94583029e1c4241e4531d81		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB316 14364 bytes

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