Malicious PDF — malware analysis report

Static analysis result for SHA-256 b02e966ee1a44e50…

MALICIOUS

PDF

50.1 KB Created: 2020-08-22 04:08:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5939b75ebbf4330a747bdfea49f5876e SHA-1: 226ea472ca3eac4fc0da2e5a33b93d50d8d2e180 SHA-256: b02e966ee1a44e507790253dcc9c29359dde8f9719a69a44287a47ea8aef281d
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com. Additionally, it exhibits a PDF link farm, with many links pointing to Shopify-hosted PDFs, suggesting a content-luring or SEO poisoning tactic. The presence of a 'download button' heuristic further supports a malicious workflow. The document body contains the malicious URL and several other PDF links, reinforcing the attack pattern.

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.
  • 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
  • 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=english+guide+for+class+9+kpk
    • http://files.pqassessments.com/uploads/1/3/1/6/131636612/8458189.pdf
    • http://dikemazuv.tlkventures.com/uploads/1/3/1/4/131407552/nanadud_jovafigopawiso_lurifola.pdf
    • http://files.colinbergmusic.com/uploads/1/3/2/3/132302780/pewobilobibexejo.pdf
    • http://fijigoli.auxdeptwa.org/uploads/1/3/2/6/132680937/dasuluso-bosote-gabosazuvuwama.pdf
    • https://cdn.shopify.com/s/files/1/0432/9062/4158/files/17532378311.pdf
    • https://cdn.shopify.com/s/files/1/0431/5892/9570/files/mofukusatogogi.pdf
    • https://cdn.shopify.com/s/files/1/0431/8271/9127/files/duwafeledo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wudusojixidotivage.pdf
    • https://cdn.shopify.com/s/files/1/0434/6285/2761/files/twin_platform_bed_with_drawers_solid_wood.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75555741983.pdf
    • https://cdn.shopify.com/s/files/1/0430/7802/5377/files/65539458136.pdf
    • https://cdn.shopify.com/s/files/1/0432/3940/7784/files/9th_class_result_2020_karachi_board_science_group.pdf
    • https://cdn.shopify.com/s/files/1/0435/2848/7072/files/90007868327.pdf
    • https://cdn.shopify.com/s/files/1/0435/2029/5064/files/tri_fold_brochure_template_google_slides.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006052.bin
6ca9e90d4311097eca2a84dcbc7ccd1ae1a31121ccbb37a4553216266348a9c4
pdf-font-stream PDF embedded font (sfnt) at offset 0x6052 5596 bytes
font_01_sfnt_off0000734e.bin
78e27448182014f718642199acb03e20876fe7bae5f95ed657ed95c963611323
pdf-font-stream PDF embedded font (sfnt) at offset 0x734E 10160 bytes
font_02_sfnt_off00009639.bin
27ab76c60fdc6c6cf38823b8dfdb33a9b79e52f7e8e5b9a4eaa5d23cf043e6a3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9639 21876 bytes