Malicious PDF — malware analysis report

Static analysis result for SHA-256 37c95061d9ae24b8…

MALICIOUS

PDF

49.7 KB Created: 2020-08-19 08:15:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44d2ec14393a0636a8bee54dc6df89e5 SHA-1: 26dbc5fdd7800c7fd16e95d245a7ff8bcff0e9c7 SHA-256: 37c95061d9ae24b8b878dc0e201d7412388a2425ecab78f8907c73b5281a23c4
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic specifically identifying it as a PDF link farm. The primary malicious URL, 'https://ttraff.cc/pify?keyword=behen+hogi+teri+songs++wapking', suggests a redirection to potentially harmful content. The document body, though heavily obfuscated, also contains this URL and other PDF links, reinforcing the attack pattern.

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=behen+hogi+teri+songs++wapking
    • http://files.rikrecruitment.com/uploads/1/3/1/4/131483440/posizaru.pdf
    • http://files.thewooliers.com/uploads/1/3/1/3/131398333/zomev_botepinis_sumudesen_punaxisabita.pdf
    • http://guzedemow.tapintunein.com/uploads/1/3/1/6/131606731/b9fe445e.pdf
    • http://files.prissyville.com/uploads/1/3/1/3/131380875/mufabubir.pdf
    • https://cdn.shopify.com/s/files/1/0438/0983/3117/files/rutafefejilewoka.pdf
    • https://cdn.shopify.com/s/files/1/0433/1231/6584/files/34696514086.pdf
    • https://cdn.shopify.com/s/files/1/0434/5790/4792/files/telephone_answering_machine_with_caller_id.pdf
    • https://cdn.shopify.com/s/files/1/0443/1613/1484/files/gejewakij.pdf
    • https://cdn.shopify.com/s/files/1/0433/6222/2232/files/kekozurofadeb.pdf
    • https://cdn.shopify.com/s/files/1/0446/5029/9555/files/2012_honda_rancher_420_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/10699911966.pdf
    • https://cdn.shopify.com/s/files/1/0455/3677/2261/files/tabloid_documentary_parents_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xatet.pdf
    • https://cdn.shopify.com/s/files/1/0433/4632/9750/files/12513851824.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_off000078d5.bin
50bc3c65609afede8ac98bc599734ad940133796ec60f5fbe646d640a195a713		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78D5 5256 bytes
font_01_sfnt_off00008ac7.bin
5188311fac00dfc70499cb9ee7f815ea394418249487fb01b6349a0c7d20e604		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AC7 15076 bytes

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