Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9abc92bda702c89…

MALICIOUS

PDF

41.3 KB Created: 2020-08-27 15:59:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f840345e71af765dd0baf0a2cdd3e2f SHA-1: 383ce1f3bb4867a96c5fa73f1891294c78a833fa SHA-256: b9abc92bda702c89a3dac6d9a1f46b4f0f41009f50dd48b1a1bbc4a4b837703f
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to a high number of embedded external links, characteristic of a link farm. One of these links, https://ttraff.cc/pify?keyword=lvoa-c+the+division, points to a known malicious redirector, indicating a potential phishing or malware distribution attempt. The document body contains garbled text but includes the redirector URL, suggesting it's part of the lure.

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=lvoa-c+the+division
    • http://bagisisir.awaredriving.com/uploads/1/3/0/7/130775531/sewibom_xuvobulom_wedesutuxilaxa.pdf
    • http://files.oyeskagreens.com/uploads/1/3/0/8/130874493/kunuvafizaxaf-wuwafovaxuvuj-devobodipax-vakitegiz.pdf
    • http://files.appalachianvet.net/uploads/1/3/1/8/131857315/2425912.pdf
    • http://files.akersart.com/uploads/1/3/2/6/132681771/noziwasowikewe.pdf
    • http://fedel.huntsvilleschoolofkarate.com/uploads/1/3/0/8/130874388/pukoke.pdf
    • https://cdn.shopify.com/s/files/1/0435/8799/3763/files/2007_honda_shadow_vlx_600.pdf
    • https://cdn.shopify.com/s/files/1/0430/0003/7527/files/daytimer_page_template.pdf
    • https://cdn.shopify.com/s/files/1/0437/6012/4061/files/79553877766.pdf
    • https://cdn.shopify.com/s/files/1/0433/0212/5733/files/93089204528.pdf
    • https://cdn.shopify.com/s/files/1/0433/2892/9960/files/79953067717.pdf
    • https://cdn.shopify.com/s/files/1/0430/3552/5282/files/navodaya_vidyalaya_admission_form_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/3893/3146/files/88916917418.pdf
    • https://cdn.shopify.com/s/files/1/0433/4416/7064/files/nakadapupetikewuva.pdf
    • https://cdn.shopify.com/s/files/1/0432/7538/7043/files/58998249343.pdf
    • https://cdn.shopify.com/s/files/1/0438/2208/8354/files/33986845019.pdf
    • https://cdn.shopify.com/s/files/1/0432/9183/6566/files/vetunuvalamebus.pdf
    • https://cdn.shopify.com/s/files/1/0429/2775/1321/files/44547238108.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/romiket.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000056cc.bin
f5937a32e6f9bf86a90a7055f75e7750f1a29525a1cd5d92b142b2175e60ccb4
pdf-font-stream PDF embedded font (sfnt) at offset 0x56CC 4720 bytes
font_01_sfnt_off000066d4.bin
f053a42f64683b9bf0594e8f35ea5e3ace594834d6ff78bf0ebe639c8a6418e0
pdf-font-stream PDF embedded font (sfnt) at offset 0x66D4 10988 bytes
font_02_sfnt_off00008a37.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A37 4324 bytes