Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef1602366b48f763…

MALICIOUS

PDF

41.4 KB Created: 2020-08-19 21:59:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e0d0b8fd7efc6a16f5b4a768090bcc93 SHA-1: 036c3131818a156427fd54bcf69c07678aed7a1e SHA-256: ef1602366b48f763618dda505c101d59ac7cc3427a765af8f808499e75cd8b91
154 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with a critical heuristic firing indicating a malicious redirector link. The primary URL, 'https://ttraff.cc/pify?keyword=bhojpuri+song+bhakti+pawan+singh', is likely used to direct users to malicious content or phishing pages. The presence of numerous other links, many hosted on cdn.shopify.com and other domains, suggests a link farm designed to obscure the ultimate destination or to spread the malicious campaign across multiple domains. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=bhojpuri+song+bhakti+pawan+singh
    • http://files.pruddlb.com/uploads/1/3/0/7/130775712/2197268.pdf
    • http://files.milinclinic.com/uploads/1/3/1/4/131437822/641ac951b01172.pdf
    • http://files.peacegourmethoney.com/uploads/1/3/1/8/131871992/5079414.pdf
    • http://files.seafieldfarmva.com/uploads/1/3/0/7/130775997/jalukopagavikub-sasegejebeto-wanupimojudux.pdf
    • https://cdn.shopify.com/s/files/1/0431/7128/3098/files/52395691051.pdf
    • https://cdn.shopify.com/s/files/1/0430/2965/9805/files/32949155584.pdf
    • https://cdn.shopify.com/s/files/1/0447/9765/7248/files/gravely_model_l_manual.pdf
    • https://cdn.shopify.com/s/files/1/0436/7079/8489/files/akuntansi_keuangan_lanjutan.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48695811849.pdf
    • https://cdn.shopify.com/s/files/1/0434/3165/7638/files/sovokipevokijaliwafezote.pdf
    • https://cdn.shopify.com/s/files/1/0432/9517/8902/files/13658351076.pdf
    • https://cdn.shopify.com/s/files/1/0433/7205/2643/files/32388013620.pdf
    • https://cdn.shopify.com/s/files/1/0432/8462/7616/files/gipokezekewet.pdf
    • https://cdn.shopify.com/s/files/1/0437/7572/1633/files/final_fantasy_x_guide.pdf
    • https://cdn.shopify.com/s/files/1/0440/1725/4565/files/essay_writing_format_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0427/5830/8006/files/19853962824.pdf
    • https://cdn.shopify.com/s/files/1/0435/1839/4523/files/steam_download_speed.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
stream_005_off000084d3.bin
bf0151cdd7dab2ad7835d3455478bc2f915ad0847404db33e204b6fbdb2276aa		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x84D3 5388 bytes
font_00_sfnt_off0000502e.bin
310b57e7f85a0edb6f4471f8578d4c970ac71377e080740cfc7b50bf34d00b33		 pdf-font-stream PDF embedded font (sfnt) at offset 0x502E 5472 bytes
font_01_sfnt_off000062d4.bin
64cce222d17595b59d467c411225617ea232b79049b9de1c36360f69529ffc14		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62D4 9852 bytes

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