Malicious PDF — malware analysis report

Static analysis result for SHA-256 35c48492eb3fc84a…

MALICIOUS

PDF

54.6 KB Created: 2020-08-06 00:21:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 10e7cdc08eb12ad75db6969f2776b11e SHA-1: 01101b0e61f30d08a11da2c1d26804767d724a84 SHA-256: 35c48492eb3fc84a2758b710675a2dc12561b2f09b83ccf9d74ac1babbff6719
152 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL is https://ttraff.com/pify?keyword=all+and+everything+beelzebub+s+tales+to+his+grandson+pdf, which is designed to redirect users to further malicious content. The document body, though garbled, contains this URL, suggesting a lure to trick users into clicking it. The presence of many Shopify links, some benign and some potentially malicious, indicates a link farm or SEO poisoning tactic.

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.com/pify?keyword=all+and+everything+beelzebub+s+tales+to+his+grandson+pdf
    • http://files.battlegroundfp.com/uploads/1/3/1/4/131437423/9734175.pdf
    • http://rawusibuk.moodmetals.com/uploads/1/3/0/7/130738970/da14871556.pdf
    • http://files.bistihiker.com/uploads/1/3/0/8/130873932/texenibi_xatir_gojijatos.pdf
    • http://files.winterra.ca/uploads/1/3/1/0/131070894/vitesi-kuwus-fikudeworodub-fopujazunap.pdf
    • https://cdn.shopify.com/s/files/1/0430/2051/7537/files/i_before_e_exceptions.pdf
    • https://cdn.shopify.com/s/files/1/0440/8714/8709/files/besivuwe.pdf
    • https://cdn.shopify.com/s/files/1/0434/8382/4294/files/34798139528.pdf
    • https://cdn.shopify.com/s/files/1/0437/0078/1208/files/2d_and_3d_shapes_chart.pdf
    • https://cdn.shopify.com/s/files/1/0434/6816/1176/files/86888323498.pdf
    • https://cdn.shopify.com/s/files/1/0430/6406/6201/files/algebra_2_study_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dazekenikajupupapunel.pdf
    • https://cdn.shopify.com/s/files/1/0433/1044/8795/files/besm_d20_players_handbook.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45251784546.pdf
    • https://cdn.shopify.com/s/files/1/0433/6710/4668/files/66274170352.pdf
    • https://cdn.shopify.com/s/files/1/0435/6295/9006/files/saburixuwinapipux.pdf
    • https://cdn.shopify.com/s/files/1/0432/3118/3016/files/ableton_live_suite_9_manual.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_off00007f4b.bin
0c76fcb4ee781de3bd47eca4c34e9fc0182ac3c756cbe7455296ecb66863b049		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F4B 5644 bytes
font_01_sfnt_off0000928c.bin
831e39243430291a4576e68a124a4be5b50dcb7c07b57510bc4713963ff1291e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x928C 10612 bytes
font_02_sfnt_off0000b620.bin
2c25fca7ecb4716ea63bc05ab3dd1966081ba09f1f6380a610386a5b5e8c298b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB620 16544 bytes

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