Malicious PDF — malware analysis report

Static analysis result for SHA-256 47b66f327ed833e8…

MALICIOUS

PDF

41.0 KB Created: 2020-08-06 05:52:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6def08c866cb485accb3326c9746f9e2 SHA-1: 70f2e6195d8d2ad3b399a61485a3b7c18cee03e8 SHA-256: 47b66f327ed833e891b880716c50baa6fb07f8a3b400f01f40e29d717406c3f8
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one URL pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'cg police written exam date 2020 pdf' and includes the malicious URL, suggesting a lure to trick users into clicking the link. The presence of numerous Shopify-hosted PDFs indicates an attempt to blend malicious links with seemingly benign content. No scripts were extracted from this sample.

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.
  • 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.
  • 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=cg+police+written+exam+date+2020+pdf
    • http://pawusitig.sparetimewooddesign.com/uploads/1/3/0/8/130874218/f0e82336ddb2e2.pdf
    • http://files.housedressings.ca/uploads/1/3/2/7/132712096/4114764.pdf
    • http://files.torontolakesideescape.com/uploads/1/3/2/6/132681053/6915821.pdf
    • http://files.childprotectionresponsecenter.org/uploads/1/3/1/3/131378791/2052782.pdf
    • http://files.dianacarterwriter.com/uploads/1/3/2/6/132695707/5c748a7727a.pdf
    • https://cdn.shopify.com/s/files/1/0429/2011/6380/files/leporidurevivekimufoki.pdf
    • https://cdn.shopify.com/s/files/1/0433/5907/6510/files/89909263662.pdf
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/tic_tac_toe_program_in_c.pdf
    • https://cdn.shopify.com/s/files/1/0431/8248/9762/files/notukaporowunuv.pdf
    • https://cdn.shopify.com/s/files/1/0430/0469/0581/files/tojupapelipaji.pdf
    • https://cdn.shopify.com/s/files/1/0435/2992/8863/files/basetiror.pdf
    • https://cdn.shopify.com/s/files/1/0437/8161/9861/files/11632372277.pdf
    • https://cdn.shopify.com/s/files/1/0427/7541/2902/files/wizuvulubitinukemomato.pdf
    • https://cdn.shopify.com/s/files/1/0435/7157/6993/files/21187434010.pdf
    • https://cdn.shopify.com/s/files/1/0433/4462/5822/files/wefubapefagejafejugare.pdf
    • https://cdn.shopify.com/s/files/1/0430/6780/1749/files/nadabewewinoritopiwola.pdf
    • https://cdn.shopify.com/s/files/1/0437/8315/9957/files/4l60e_transmission_rebuild_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/3149/4810/files/karl_marx_alienated_labor.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_off00005f79.bin
7c45b89d34c3ad57ad072907412f9f9e711bbe4757fa0664475a19a00f5ccaa0
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F79 5636 bytes
font_01_sfnt_off000072aa.bin
76749377463b6b594ee44238eafdaae05623c830f156b6ed0de2052594814633
pdf-font-stream PDF embedded font (sfnt) at offset 0x72AA 10900 bytes