Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3053cbeadf1d94f…

MALICIOUS

PDF

38.4 KB Created: 2020-08-13 23:19:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 57f56e7f58668c63209655d2be6b39c9 SHA-1: dff0fb51ba88226d35e7c937796a40d765e16b53 SHA-256: f3053cbeadf1d94f115472a367208c885a0987a9cbdb66fa069eac6e407d385b
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1566.002 Spearphishing Attachment

The PDF contains a mass of external links, many pointing to Shopify domains, likely as part of an SEO link farm. One embedded URL, https://ttraff.com/pify?keyword=netflix+app+apk+android, is identified as a malicious redirector. The document also contains a visual call-to-action button, suggesting a lure to download content. No scripts were extracted from this sample.

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=netflix+app+apk+android
    • http://files.francisxtobin-prresume.com/uploads/1/3/2/7/132740435/6563470.pdf
    • http://files.bucklesandbeads.com/uploads/1/3/1/4/131453897/xesudebe.pdf
    • http://files.220stopinjposevno.com/uploads/1/3/1/4/131455463/lapukuwusij-rowadukonam.pdf
    • http://files.shophhbstore.com/uploads/1/3/1/6/131637374/wururabonolekipuwuri.pdf
    • http://files.rydesouthflorida.com/uploads/1/3/1/0/131071256/8216883.pdf
    • https://cdn.shopify.com/s/files/1/0433/2745/5387/files/ccna_service_provider_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0427/4946/0636/files/medical_nutrition_therapy_a_case_study_approach_5th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0433/5907/6502/files/44027223064.pdf
    • https://cdn.shopify.com/s/files/1/0429/8443/9971/files/xinogogi.pdf
    • https://cdn.shopify.com/s/files/1/0429/5370/3577/files/anti_inflammatory_diet_dr_weil.pdf
    • https://cdn.shopify.com/s/files/1/0430/4837/0333/files/54196325154.pdf
    • https://cdn.shopify.com/s/files/1/0429/8306/3715/files/11443083268.pdf
    • https://cdn.shopify.com/s/files/1/0434/7002/8966/files/cub_cadet_xt1_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0439/2304/6555/files/2192506634.pdf
    • https://cdn.shopify.com/s/files/1/0437/5887/8872/files/85515443994.pdf
    • https://cdn.shopify.com/s/files/1/0440/6453/8776/files/willmington_guide_to_the_bible.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_off00005959.bin
496ed0e7057be1ecfdb5d375e608a135d8ceb296789b4182b32291cfa5da76c1
pdf-font-stream PDF embedded font (sfnt) at offset 0x5959 4960 bytes
font_01_sfnt_off00006a4e.bin
0f456123f357d73ffc457552924ba5ea6bee354421f8292345bf267f578e7098
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A4E 10176 bytes