Malicious PDF — malware analysis report

Static analysis result for SHA-256 c46191e512a9fe41…

MALICIOUS

PDF

37.9 KB Created: 2020-08-12 09:33:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 478858b49ce65c3b49eef0a315af3f3b SHA-1: a31bc073606421155c1e950d81d17db5b95d90ab SHA-256: c46191e512a9fe418c86a561dd1db79b6ab8a110226c7bd9ef1896fbec95b559
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to benign Shopify URLs but one critical link to a known malicious redirector. The document body text, while partially obfuscated, includes the same lure text as the malicious URL, suggesting an attempt to trick users into downloading further content. The primary malicious IOC is the redirector URL, which likely leads to a malicious payload.

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=succeeding+with+agile+software+development+using+scrum+pdf+free+download
    • http://files.joannasholistictreatmentclinic.com/uploads/1/3/1/1/131163914/tazigusod_tavumudarofap_maruvejeri.pdf
    • http://xafakikeg.gillianhurrie.com/uploads/1/3/0/8/130874655/2882462.pdf
    • http://files.silkwoodart.com/uploads/1/3/0/9/130969241/8956538.pdf
    • http://files.firstresponseland.com/uploads/1/3/0/9/130969048/6938680.pdf
    • https://cdn.shopify.com/s/files/1/0435/0646/6982/files/morrowind_short_blade_trainer.pdf
    • https://cdn.shopify.com/s/files/1/0431/3926/8774/files/74936234164.pdf
    • https://cdn.shopify.com/s/files/1/0437/9358/0189/files/57292457252.pdf
    • https://cdn.shopify.com/s/files/1/0438/9611/1259/files/potevoxukaneranaxike.pdf
    • https://cdn.shopify.com/s/files/1/0435/4136/4890/files/banking_and_finance_b._com_part_2_notes.pdf
    • https://cdn.shopify.com/s/files/1/0431/3110/9540/files/bebewukix.pdf
    • https://cdn.shopify.com/s/files/1/0431/9805/4558/files/pixadulibixeniku.pdf
    • https://cdn.shopify.com/s/files/1/0429/8529/1937/files/wharton_gerencia_de_tecnologas_emergentes.pdf
    • https://cdn.shopify.com/s/files/1/0431/4791/9522/files/zobulagodat.pdf
    • https://cdn.shopify.com/s/files/1/0428/2862/8124/files/87290043592.pdf
    • https://cdn.shopify.com/s/files/1/0434/3349/2641/files/bawijonutozakigijufunafus.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_off0000518e.bin
84e14fec1e17d7e5c0fbb9cba362f0d66841fe022a35823f260b68a4443d5816		 pdf-font-stream PDF embedded font (sfnt) at offset 0x518E 5824 bytes
font_01_sfnt_off0000654a.bin
5d455bfe4f693b1df163036bff3c2eedc3d458e3e2cfc05929dcf159d8031568		 pdf-font-stream PDF embedded font (sfnt) at offset 0x654A 10228 bytes

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