Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec3a81f0dbf2708d…

MALICIOUS

PDF

44.4 KB Created: 2020-07-31 20:26:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b3a2f10d6ca3ef4252e350e0761effad SHA-1: 4145025c7bd23c4e077f1bfa22b87facdca264ce SHA-256: ec3a81f0dbf2708de3af37360a0ad95381a5ee6254786729d6683052999017e5
180 Risk Score

Malware Insights

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

The PDF document contains a lure related to 'Manual backup iphone to icloud' and includes a critical heuristic firing for 'SE_SECRET_RECOVERY_LURE', indicating it requests sensitive recovery information. It also contains a PDF_MALICIOUS_REDIRECTOR_LINK pointing to 'https://ttraff.com/pify?keyword=manual+backup+iphone+to+icloud', which likely serves as a gateway to malicious content. The presence of numerous embedded links, many hosted on Shopify, suggests a link farm or distribution mechanism for further payloads.

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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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=manual+backup+iphone+to+icloud
    • http://files.zicklinfaa.com/uploads/1/3/0/8/130873921/25e372f1545e2c7.pdf
    • http://files.doggievilleranch.com/uploads/1/3/0/8/130814246/eff367d.pdf
    • http://files.beamfitness.ca/uploads/1/3/1/3/131398259/tubemegijajaxolumuja.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/55339916546.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52945462890.pdf
    • https://cdn.shopify.com/s/files/1/0432/4920/5405/files/tupimupefagopamefegazujo.pdf
    • https://cdn.shopify.com/s/files/1/0438/2624/9885/files/sowewidevamoditefa.pdf
    • https://cdn.shopify.com/s/files/1/0427/8904/4383/files/wuxabuxi.pdf
    • https://cdn.shopify.com/s/files/1/0429/1752/7715/files/vibakirofunukiwuxozu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3000/3358/files/zuzonu.pdf
    • https://cdn.shopify.com/s/files/1/0437/7188/7767/files/dukevasowelebe.pdf
    • https://cdn.shopify.com/s/files/1/0427/4031/8375/files/nupolafufebejew.pdf
    • https://cdn.shopify.com/s/files/1/0429/2182/0313/files/7509094598.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_off00007063.bin
7a7fb492ed40ec670efc3b1bf17bb208e6feae7c5996ec4086c530d193723a42		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7063 5096 bytes
font_01_sfnt_off000081bd.bin
9350062dfac524fcc1915dd48bc5d16a032099da290f933bcbf6337dbd2ee159		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81BD 10340 bytes

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