Malicious PDF — malware analysis report

Static analysis result for SHA-256 063e41ac7e1b8869…

MALICIOUS

PDF

41.5 KB Created: 2020-09-01 01:22:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: af82a58650cf7ad40aeefca9bc12047f SHA-1: e4c0f7aecf5e144a01f1311c15372ebe27074a99 SHA-256: 063e41ac7e1b88697041228504779338a1213d24e5c140c7748ca2719f65f9bc
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=managing+emotions+worksheet'. This, combined with a high ML classifier score and the presence of a download button lure, indicates a phishing or scam attempt. The document body, though heavily obfuscated, also contains the same redirector URL, reinforcing its malicious intent.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/pify?keyword=managing+emotions+worksheet
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/4575/6833/files/23009735576.pdf
    • https://cdn.shopify.com/s/files/1/0434/9244/2264/files/27430595105.pdf
    • https://cdn.shopify.com/s/files/1/0427/8353/9366/files/bls_student_manual_2020.pdf
    • https://cdn.shopify.com/s/files/1/0434/3414/7989/files/do_judgments_appear_on_credit_reports.pdf
    • https://static.usrfiles.com/ugd/8cbfce_2ad45ded590048abb06e2216494ddaf2.pdf
    • https://static.usrfiles.com/ugd/8a419d_206789d95ac24f8085992ce014f76ba7.pdf
    • https://cdn.shopify.com/s/files/1/0463/9499/8939/files/4254768007.pdf
    • https://cdn.shopify.com/s/files/1/0429/8866/7034/files/65862490932.pdf
    • https://cdn.shopify.com/s/files/1/0434/6006/7480/files/tadadulaguw.pdf
    • https://cdn.shopify.com/s/files/1/0440/3652/2149/files/labofamupufubigi.pdf
    • https://cdn.shopify.com/s/files/1/0437/2729/0518/files/tlcharger_apprendre_le_franais_gratuitement.pdf
    • https://static.usrfiles.com/ugd/ec0c41_fa1d61f992e640dd9de875f2fe90c307.pdf
    • https://static.usrfiles.com/ugd/9c0842_8f41267bf351484ea5861591c42dc936.pdf
    • https://static.usrfiles.com/ugd/0511f5_f0932090329b441b8d2df8e38b4a608f.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_off00006417.bin
a11fed6aaedb4c6fab52837192a56bd72567f02ab10fc152ffb70e8bae619e97		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6417 5228 bytes
font_01_sfnt_off000075d5.bin
14cc91b0cb1fc4befe11b01c6ff131a1979957d28df5cafbd4a5b263d7df8d4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75D5 10616 bytes

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