Malicious PDF — malware analysis report

Static analysis result for SHA-256 0824ea14f6e49432…

MALICIOUS

PDF

40.8 KB Created: 2020-08-19 13:33:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f3b85a1007aed7032c584fb0cd0fd444 SHA-1: 1dec59c0a11864b97beaf219ddb974d8653bcd45 SHA-256: 0824ea14f6e494325ce68eb8888eb9e65383ed48f34ce41bd538101a4a5a1e0c
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 download for "my jio 4g voice call apps". This link points to ttraff.com, which is known malicious infrastructure. The document also contains a large number of links to Shopify-hosted PDFs, likely for SEO manipulation or to host further payloads. The ML classifier strongly flagged this PDF as malicious.

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.com/pify?keyword=my+jio+4g+voice+call+apps
    • http://files.chapelheightsumceauclaire.com/uploads/1/3/0/7/130775017/1509000.pdf
    • http://files.eastbudleigh.org.uk/uploads/1/3/1/4/131407465/zosedomopoliz.pdf
    • http://files.jerryskeys.com/uploads/1/3/1/3/131380687/xojevanoxod-sefurikube-magutofo-dinizoxatetesur.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0429/5350/6969/files/easy_math_quiz_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0432/4435/5739/files/carte_du_monde_noir_et_blanc__imprimer.pdf
    • https://cdn.shopify.com/s/files/1/0431/7665/7051/files/timeline_template_powerpoint_mac.pdf
    • https://cdn.shopify.com/s/files/1/0433/8312/8214/files/xixotidatofa.pdf
    • https://cdn.shopify.com/s/files/1/0439/0033/8331/files/lopumoxuxozarapewipojod.pdf
    • https://cdn.shopify.com/s/files/1/0433/4020/2142/files/65784925390.pdf
    • https://cdn.shopify.com/s/files/1/0453/8610/5000/files/autocad_2010_free_trial.pdf
    • https://cdn.shopify.com/s/files/1/0437/3292/6616/files/59832365066.pdf
    • https://cdn.shopify.com/s/files/1/0431/6083/0116/files/31880481492.pdf
    • https://cdn.shopify.com/s/files/1/0433/8604/4572/files/alien_shooter_2_cheats_for_android.pdf
    • https://cdn.shopify.com/s/files/1/0430/8402/1921/files/46061137154.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_off000061c8.bin
99f7ed230c34cc5f7da0de1c09a837e49f0396c7ff18e430c29bec2f8a3be378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61C8 5336 bytes
font_01_sfnt_off00007424.bin
c13898023d23fa9a3e244ccccd64806b24a4e0930596778843ba75e5842e3593		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7424 10084 bytes

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