Malicious PDF — malware analysis report

Static analysis result for SHA-256 42cf856b7cae738e…

MALICIOUS

PDF

77.4 KB Created: 2020-08-09 09:33:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b1dcd6f8a1f31f4cb954e7b40db3e17 SHA-1: ef95b49de6a330e0adbce7fa04cfe904a1ea94bb SHA-256: 42cf856b7cae738efdac8d2f921916bd5f22debd6086dd2d9029903139eac45a
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious domain, disguised as a downloadable project file. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the malicious nature of the redirector. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, likely for SEO manipulation or to spread malicious content. The embedded URL is the primary indicator of malicious intent, leading to a redirector.

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.com/pify?keyword=project+on+alternating+current+for+class+12+pdf
    • http://files.mymesedesigns.com/uploads/1/3/0/8/130814078/batusudukuno.pdf
    • http://files.josephdeansdesign.com/uploads/1/3/1/3/131380495/4379039.pdf
    • http://files.physiotherapymart.com/uploads/1/3/1/3/131398135/didajotiwupamikuduta.pdf
    • https://cdn.shopify.com/s/files/1/0432/1342/2753/files/36676995422.pdf
    • https://cdn.shopify.com/s/files/1/0434/6655/5557/files/daturatokigemijefa.pdf
    • https://cdn.shopify.com/s/files/1/0430/3798/2869/files/fixagapukigotoxeviwa.pdf
    • https://cdn.shopify.com/s/files/1/0438/4283/0496/files/bromate_determination_in_bread.pdf
    • https://cdn.shopify.com/s/files/1/0448/1895/6448/files/story_of_davidito.pdf
    • https://cdn.shopify.com/s/files/1/0430/1222/7225/files/48223058212.pdf
    • https://cdn.shopify.com/s/files/1/0431/0541/9418/files/fotarokegodugifosesezu.pdf
    • https://cdn.shopify.com/s/files/1/0429/5000/0791/files/42943956616.pdf
    • https://cdn.shopify.com/s/files/1/0430/2798/8634/files/zopizo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9191/0038/files/31935062805.pdf
    • https://cdn.shopify.com/s/files/1/0433/3902/2485/files/43191702589.pdf
    • https://cdn.shopify.com/s/files/1/0437/5432/4117/files/nadefodakakemolagulavi.pdf
    • https://cdn.shopify.com/s/files/1/0432/4563/3693/files/dreams_from_my_father_book.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21659337375.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_off0000d6c1.bin
ed74d0296e93f5475075fa8bcb8168cdf9fbe8a1c06ae2e221e29188e7179b56
pdf-font-stream PDF embedded font (sfnt) at offset 0xD6C1 5584 bytes
font_01_sfnt_off0000e9de.bin
ad916df3f01ff28a2b18ed7fe4b0165718a2f68a48ed3435a312f46436427938
pdf-font-stream PDF embedded font (sfnt) at offset 0xE9DE 12240 bytes
font_02_sfnt_off0001134c.bin
bc1c1644e30597ae0beaac312b9749a82b64e26c109397326cdc67fdbaf2fe17
pdf-font-stream PDF embedded font (sfnt) at offset 0x1134C 16036 bytes