Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0bce81a28e0b683…

MALICIOUS

PDF

42.2 KB Created: 2020-09-19 04:28:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6af4df9c4c650bbca7a5850c98ce7701 SHA-1: 96ee03b902ba68c412ed23c39dc35fca46b77abc SHA-256: d0bce81a28e0b683848f5a754ff8479b28c05f03eab0952639332b40181623bb
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.link' with a keyword related to a children's cartoon. This indicates a social engineering lure. The document also contains a mass external PDF link farm, with many links pointing to benign Shopify URLs, but the primary malicious link is the redirector. No scripts were extracted from this sample, but the presence of the malicious redirector strongly suggests a phishing or malware delivery attempt.

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.link/wix?keyword=ben+10+generator+rex+heroes+united+part+2
    • http://leruwuro.karamadental.com/uploads/1/3/1/4/131483138/polejov-wixepowufuxeje-rerozesinez.pdf
    • http://bikezag.sunshinecoastcelebrant.net/uploads/1/3/2/6/132680981/e88b8f7fc10e.pdf
    • http://files.gulnurozdaglar.com/uploads/1/3/2/3/132302913/38e83.pdf
    • http://dipepo.fingerpressart.com/uploads/1/3/2/7/132712127/6327083.pdf
    • https://cdn.shopify.com/s/files/1/0437/6231/9517/files/global_warming_and_greenhouse_effect_essay.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56697352128.pdf
    • https://cdn.shopify.com/s/files/1/0440/6401/4486/files/android_auto_sync_3_google_maps.pdf
    • https://cdn.shopify.com/s/files/1/0434/1760/0152/files/sozonidub.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/49181926903.pdf
    • https://1c2d0dbc-cedf-4109-adf8-99efcaba6406.filesusr.com/ugd/d4a9d6_b0a42d7b31944c2dafcbb2b55b037e53.pdf?index=true
    • https://ed011504-2e65-409d-9c6e-7dc0994a3f0c.filesusr.com/ugd/3f80ec_f31587f6798d4e55ba4911d014bd9aa2.pdf?index=true
    • https://11f817a6-d231-449f-bed4-876eaa898e0c.filesusr.com/ugd/edb4a7_a44ff90f2b5546ccb9efb1ca793cdc12.pdf?index=true
    • 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_off000064d3.bin
8878f53dda0d55146dabb49676b512511403ea343a0fd883bdf59c70bd8106a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64D3 5632 bytes
font_01_sfnt_off00007806.bin
3d38e2c439e1489e329c3159316cfa267df6a1c5f0654995e7c140dcfc55371a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7806 10744 bytes

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