Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc44f013bd06cb03…

MALICIOUS

PDF

48.5 KB Created: 2020-09-07 22:24:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: f54944587ee8621b571da8f461091b1a SHA-1: bc3968eeade7f33ed3273a6f4aa968396b838a83 SHA-256: bc44f013bd06cb03a4b87629a5c2715f9664ce14bb104778314df0d7c17cd8f1
162 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a lure for popular movie content. The ML classifier and redirector heuristics strongly indicate malicious intent. The embedded URL, https://ttraff.club/wix?keyword=bahubali+2+telugu+full+movie++please, is the primary indicator of compromise, likely leading to a phishing page or malware download.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.club/wix?keyword=bahubali+2+telugu+full+movie++please In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/6959/4789/files/maps._me_app_store.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0406/0071/files/digital_electronics_n4_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dadimutixiwukigojubiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2301/4824/files/i_love_my_family_in_spanish.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4448/7836/files/volume_of_shapes_worksheet.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e4d7df_36d24c2e62244396832994f16eecd6c4.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_acc9996442cf4f24886946e74f2cdc9d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/84a5c6_595d4acd71364c90a579fbe91669a74a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/fac845_b0c6c322f5cd4ff7836f49e308828e5f.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1608/5923/files/88910314457.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8246/4928/files/darafugavij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2864/9896/files/active_n_passive_voice_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/4475/7664/files/vukazoxidavuwilafip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5593/8720/files/rise_of_kingdoms_commander_upgrade_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/3709/1998/files/excel_assignments_for_students.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000070ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70EF 3060 bytes
SHA-256: 3ddc25ab879828a646f86fc9d4737eb74dc4042b7dcc511ead24a7d9c67cdfea
font_01_sfnt_off00007be6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BE6 5600 bytes
SHA-256: 0204e7449b22be0625cd933d2f2668da83982cb23888d384bbd42092f5391e62
font_02_sfnt_off00008edf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EDF 10936 bytes
SHA-256: eacefefbf244314966b6ecb2e94d7c13e3ce688ceb27dc4e8ad57632d8571dbf

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