Malicious PDF — malware analysis report

Static analysis result for SHA-256 3673e8ef9d9311c6…

MALICIOUS

PDF

43.8 KB Created: 2020-08-28 14:36:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 06caa7881f44b19887ce680cffb1e90a SHA-1: 8cec3598e6e08c765a659a20e1a2851b1c9b09a4 SHA-256: 3673e8ef9d9311c641b987d30ff390cef535769d8370d2ab7ae976cf70a64750
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm, with numerous links hosted on 'cdn.shopify.com'. The presence of a visual download button lure suggests an attempt to trick the user into downloading further content. The document body, though heavily obfuscated, contains the redirector URL and several Shopify URLs, reinforcing the lure.

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=canon+mg2520+printer+driver
    • http://files.lymefilm.org/uploads/1/3/0/8/130813898/610278.pdf
    • http://mopuvovef.heartlandlr.com/uploads/1/3/0/8/130815009/bunozutirasil-jidivug.pdf
    • http://botizi.beautifulmuscle.com/uploads/1/3/0/8/130813528/wokerelupozox_busot_xelenop_geminupatovab.pdf
    • http://gikaf.embracefoundationgallery.org/uploads/1/3/1/4/131453197/lukajujabel.pdf
    • http://files.vaporservices.org/uploads/1/3/1/3/131380295/bimolapafebe-jikemasisogebe.pdf
    • https://cdn.shopify.com/s/files/1/0437/6343/3621/files/kumavasemogarotiwaniz.pdf
    • https://cdn.shopify.com/s/files/1/0428/7827/1651/files/vizokojekezifexivuke.pdf
    • https://cdn.shopify.com/s/files/1/0439/6112/2974/files/37445055946.pdf
    • https://cdn.shopify.com/s/files/1/0428/2771/0630/files/3709870322.pdf
    • https://cdn.shopify.com/s/files/1/0429/8299/8170/files/28289329203.pdf
    • https://cdn.shopify.com/s/files/1/0435/6302/4542/files/dagepuzetex.pdf
    • https://cdn.shopify.com/s/files/1/0430/3532/8661/files/kidavawumiv.pdf
    • https://cdn.shopify.com/s/files/1/0432/2738/1920/files/41288127483.pdf
    • https://cdn.shopify.com/s/files/1/0437/4547/6757/files/gapasarolevekiwefepujado.pdf
    • https://cdn.shopify.com/s/files/1/0433/6166/5192/files/escape_room_level_113_answer_explanation.pdf
    • https://cdn.shopify.com/s/files/1/0433/8909/1989/files/sonetibomupufoluzutifovo.pdf
    • https://cdn.shopify.com/s/files/1/0444/7895/5687/files/amelie_piano_easy.pdf
    • https://cdn.shopify.com/s/files/1/0432/7977/7952/files/26395905234.pdf
    • https://cdn.shopify.com/s/files/1/0428/5032/0543/files/kilojojabakinenel.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_off00006c27.bin
45010786590b9bc93bd4dd735f8c9ccab5bb9efe9be013e99da6e479256fd38b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C27 5432 bytes
font_01_sfnt_off00007e8b.bin
df77d9bb6e7d5bf67c3b25a8599affaca17ee3a570d10e7128954443f61247b7
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E8B 10440 bytes