Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee8e6cb5b922b1a5…

MALICIOUS

PDF

81.3 KB Created: 2020-08-02 22:22:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f75a4304325eb7d1cce7cc0e54ed09c4 SHA-1: ed5d49742b42ba127954b167b8021d36f04cb498 SHA-256: ee8e6cb5b922b1a53020604672625ea7c0cc493f171fcc5d8f2124191e04e2c6
152 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and text suggesting a lure for "Fluid mechanics white 8th edition pdf". The presence of numerous other links hosted on Shopify and other domains suggests a link farm designed to distribute malicious content. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=fluid+mechanics+white+8th+edition+pdf
    • http://files.adamsbiz.com/uploads/1/3/1/4/131452735/kilunupaxivejanedu.pdf
    • http://files.kristamaysart.com/uploads/1/3/1/0/131070485/xaxevijuvumoben_vevagisupa_zolugikunuwak.pdf
    • http://files.thebuskersproject.com/uploads/1/3/0/7/130740213/1407879.pdf
    • http://files.mystylepursesshop.com/uploads/1/3/0/7/130739174/takoviro-jobofagokugabav-jubila-dufugafela.pdf
    • https://cdn.shopify.com/s/files/1/0434/3853/8904/files/jowebovaxedixagujatunot.pdf
    • https://cdn.shopify.com/s/files/1/0432/3993/2064/files/jitoritaxipali.pdf
    • https://cdn.shopify.com/s/files/1/0432/8990/3259/files/zikililozedupikimibuxefox.pdf
    • https://cdn.shopify.com/s/files/1/0431/6574/5312/files/tejixadilixug.pdf
    • https://cdn.shopify.com/s/files/1/0428/8158/1209/files/tofejijuvuzewefatokagibu.pdf
    • https://cdn.shopify.com/s/files/1/0429/3863/0300/files/18568829123.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96626323422.pdf
    • https://cdn.shopify.com/s/files/1/0440/2734/7109/files/rupazupodi.pdf
    • https://cdn.shopify.com/s/files/1/0428/6706/4998/files/lobulatiduxatili.pdf
    • https://cdn.shopify.com/s/files/1/0438/0576/9888/files/nuzalerasajeledawujiwix.pdf
    • https://cdn.shopify.com/s/files/1/0433/8892/8150/files/mosafeximiloj.pdf
    • https://cdn.shopify.com/s/files/1/0434/4302/8120/files/gosozovijopifexoxoxuw.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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b13a.bin
61220a0dae34d1298b72f9dc29e84aaedfd295c424e610d0b93cf322ab2cb80f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB13A 1768 bytes
font_01_sfnt_off0000b9e1.bin
74107cf33d0fb7c99a3317dcb4bd8e324caddbaf05f053d4105334911a1fdf98		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB9E1 5540 bytes
font_02_sfnt_off0000ccaf.bin
5f07b96a345167f8d597a4b3e1fe0e52dd7a62508af6f8e7b00de7561a89dfc4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCCAF 8976 bytes
font_03_sfnt_off0000de6d.bin
19a8b2b29cb5e1c9dd376a58434270af37606b80c66c62aa3e5fddb6b85ff631		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDE6D 2600 bytes
font_04_sfnt_off0000e900.bin
9971f6c8daddfcf5fd599a8b34f8254300c5c16c7a8ee3d74a4a8ba5d2e8b818		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE900 17900 bytes
font_05_sfnt_off000120ab.bin
34b4a006e46ebb892e96cfc35f78d07992dc2dd5c29e8427fcfcaccfd8979a47		 pdf-font-stream PDF embedded font (sfnt) at offset 0x120AB 16292 bytes

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