Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c6a55d532a8b68e…

MALICIOUS

PDF

34.6 KB Created: 2020-08-10 11:57:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50221cd2cf24f35c335567619e9a0c53 SHA-1: b71d47c4ed403f77946e67b99ef31a570e420073 SHA-256: 2c6a55d532a8b68ed2bce9a95d075b94a27aea541a265b65b6cbd16ccbfadb75
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass of external links, with one critical link pointing to a known malicious redirector at `ttraff.cc`. This indicates the document is designed to lure users to malicious infrastructure. The presence of numerous Shopify-hosted PDF links suggests an attempt to disguise the malicious intent within a large number of seemingly benign documents. No scripts were extracted, but the primary attack vector appears to be the embedded malicious URL.

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.cc/pify?keyword=dictionary+scavenger+hunt+worksheet+pdf
    • http://files.rana-tarabishi.com/uploads/1/3/1/8/131871554/5181172.pdf
    • http://files.conejoroyals.com/uploads/1/3/1/3/131381031/54fdb.pdf
    • http://files.matchmypartytheme.com/uploads/1/3/0/7/130775651/rujezela_jawabar.pdf
    • http://files.stmatthewspokane.org/uploads/1/3/1/8/131857199/df8a314ccfcf8.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kemisavixazesunomezixe.pdf
    • https://cdn.shopify.com/s/files/1/0432/2577/6288/files/sasuke_minecraft_skin.pdf
    • https://cdn.shopify.com/s/files/1/0448/0407/9778/files/angioedema_tratamento.pdf
    • https://cdn.shopify.com/s/files/1/0437/0055/1845/files/aprender_a_dibujar_tatuajes.pdf
    • https://cdn.shopify.com/s/files/1/0447/1206/7228/files/searching_for_meaning_idealism_bright_minds_disillusionment_and_hope.pdf
    • https://cdn.shopify.com/s/files/1/0440/3858/6518/files/blender_rotate_object.pdf
    • https://cdn.shopify.com/s/files/1/0433/1533/1227/files/popasiluwumupejujalad.pdf
    • https://cdn.shopify.com/s/files/1/0437/1474/0373/files/vusovugogilobikimavudape.pdf
    • https://cdn.shopify.com/s/files/1/0434/5105/6285/files/jolulofufudajetewu.pdf
    • https://cdn.shopify.com/s/files/1/0430/4463/4773/files/52360222754.pdf
    • https://cdn.shopify.com/s/files/1/0441/0051/8040/files/28876268693.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_off0000474a.bin
776f347998ef05e04fef1b7b0e91a2c3c968ffac4b5bb56eb217c0d56d23274a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x474A 5700 bytes
font_01_sfnt_off00005ad6.bin
61d315cfe39ad44937f33c204d83eec25f81f107ef30abb65d9a22d72895a4e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AD6 10248 bytes

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