Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd975a23a450d441…

MALICIOUS

PDF

187.8 KB Created: 2020-08-11 06:54:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e63544c512bbaacf6ccff4ba4df5021b SHA-1: 3b8921436b4ba6ecca026feaf0534901905d96b7 SHA-256: dd975a23a450d441a1dd9ba07a645da1aa00698dab6deb1bc78b387a4606d3a8
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link that redirects to a known malicious domain, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The ML classifier also flagged this PDF with high confidence. The embedded URL is the primary indicator of malicious intent, likely leading to a phishing or malware download page.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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.ru/pify?keyword=apache+beam+tutorial+pdf
    • http://files.celebratekenroymillington.com/uploads/1/3/1/3/131383954/kobibiso_vipukavob_losiloninelaluj.pdf
    • http://fivesa.cynthiakurklis.com/uploads/1/3/0/9/130969042/7389615.pdf
    • http://files.edutainmint.com/uploads/1/3/0/7/130775952/fimifanur_fapekopudit_zukorufajira_zizebitexes.pdf
    • http://gogar.thepercolator.net/uploads/1/3/0/7/130776542/mitevo_wojozamevuseb_woxarupuw_rarowirekuw.pdf
    • http://files.nicholemannion.com/uploads/1/3/2/7/132712306/549cce818a.pdf
    • https://cdn.shopify.com/s/files/1/0431/0846/6845/files/88134222421.pdf
    • https://cdn.shopify.com/s/files/1/0433/4950/8250/files/ropajonewododumu.pdf
    • https://cdn.shopify.com/s/files/1/0437/8315/9970/files/lanizuvewizavoselofireren.pdf
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/lodajesijafemikiwijebun.pdf
    • https://cdn.shopify.com/s/files/1/0437/9662/7618/files/star_fox_snes_rom.pdf
    • https://cdn.shopify.com/s/files/1/0432/3082/2555/files/step_by_step_ascended_master_discourses.pdf
    • https://cdn.shopify.com/s/files/1/0432/4694/4416/files/61933941661.pdf
    • https://cdn.shopify.com/s/files/1/0430/2562/9335/files/weight_watcher_sample_menus.pdf
    • https://cdn.shopify.com/s/files/1/0429/3623/8236/files/59015444840.pdf
    • https://cdn.shopify.com/s/files/1/0432/4786/1928/files/76596354864.pdf
    • https://cdn.shopify.com/s/files/1/0438/8637/9160/files/pulufirajawobadixijivasas.pdf
    • https://cdn.shopify.com/s/files/1/0446/4531/8819/files/conceito_de_atmosfera.pdf
    • https://cdn.shopify.com/s/files/1/0430/0197/0837/files/xewemitip.pdf
    • https://cdn.shopify.com/s/files/1/0428/2223/8375/files/combat_tournament_legends_unblocked.pdf
    • https://cdn.shopify.com/s/files/1/0432/6345/9486/files/26551401211.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00029bde.bin
5a08bbccef2ea830077f7664b250725134627d4c6d2525ae0d2a82fb63f3439c
pdf-font-stream PDF embedded font (sfnt) at offset 0x29BDE 5348 bytes
font_01_sfnt_off0002ade2.bin
0691f0458e2caa495d529d66a64b241feb393cefbd6a3fce49ed1662bdd79077
pdf-font-stream PDF embedded font (sfnt) at offset 0x2ADE2 16380 bytes