Malicious PDF — malware analysis report

Static analysis result for SHA-256 b04016f32a8afd66…

MALICIOUS

PDF

53.7 KB Created: 2020-08-19 10:30:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 58f5e97a01f82f04599c2d07a0487e55 SHA-1: 3613c9157190a2c0162e51816ec4cb11a4863b3f SHA-256: b04016f32a8afd669afc4f4af104ee231b2927a848751e5bebbbe12a63be38bc
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Maryland bridge prep guidelines' and includes a URL pointing to a known malicious redirector. This suggests a phishing or scam attempt to direct users to malicious content.

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.ru/pify?keyword=maryland+bridge+prep+guidelines
    • http://zumodamog.servicetrackandfield.com/uploads/1/3/1/3/131381464/9548036.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3496/files/gawufatukedojiturenosiw.pdf
    • https://cdn.shopify.com/s/files/1/0431/6902/2109/files/36800686682.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/35073102227.pdf
    • https://cdn.shopify.com/s/files/1/0438/5167/7856/files/nasibatiwu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6177/2442/files/pumuzavajadobubileg.pdf
    • https://cdn.shopify.com/s/files/1/0437/4301/9157/files/angielski_gramatyka_chomikuj.pdf
    • https://cdn.shopify.com/s/files/1/0459/1462/0053/files/mellanni_bed_sheet_set_queen.pdf
    • https://cdn.shopify.com/s/files/1/0436/9291/6886/files/31802005641.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/buwukepenarunowara.pdf
    • https://cdn.shopify.com/s/files/1/0435/9208/9759/files/kuxodasegivivina.pdf
    • https://cdn.shopify.com/s/files/1/0429/1015/4908/files/83448716590.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_off00008a34.bin
fc68aeaf40df052bfd8fad869eb2ab8eba3010745d9a9c96b39bbbe502158441		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A34 1892 bytes
font_01_sfnt_off00009317.bin
019b0a1f35465b4ecff053b5f44f02fde0753baf94549e18c5fba71899959551		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9317 5372 bytes
font_02_sfnt_off0000a56a.bin
1c0dddd95f911f75c18b492146f34b8ccbb23f6c33164bed373212ad568118ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA56A 10620 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.