Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e80d56adc06bf70…

MALICIOUS

PDF

48.7 KB Created: 2020-08-10 11:31:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 328570833961b0f3aa0ce30713c0458e SHA-1: 78d88bd40a9eea192d6ecf1d54fc75632d3b0256 SHA-256: 2e80d56adc06bf70f5ba94d06a67a6aea21adce3c69c52b6fa2c13eeed3d639e
152 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and contains a critical heuristic firing for a malicious redirector link. The embedded URL 'https://ttraff.com/pify?keyword=architect+list+in+surat+pdf' is a known malicious redirector. The document also contains a large number of external PDF links, many hosted on Shopify, which is indicative of a link farm used for SEO poisoning or to obscure malicious destinations. 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.com/pify?keyword=architect+list+in+surat+pdf
    • http://files.greggabrisch.com/uploads/1/3/0/7/130739664/c653aa.pdf
    • http://files.danstrings-and-more.com/uploads/1/3/0/8/130874201/bakowe.pdf
    • http://files.christchurchplaygrouphighbury.com/uploads/1/3/1/4/131483201/sinonejegikixuzoje.pdf
    • http://files.jubileeandthestinkyfish.net/uploads/1/3/1/4/131454255/jufutu.pdf
    • https://cdn.shopify.com/s/files/1/0433/5878/1590/files/87534992812.pdf
    • https://cdn.shopify.com/s/files/1/0429/9515/5105/files/inalienable_rights_definition.pdf
    • https://cdn.shopify.com/s/files/1/0430/9506/4730/files/comparison_of_adjectives_elementary_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0436/3393/4496/files/kebuvuvasabolavasusuvoto.pdf
    • https://cdn.shopify.com/s/files/1/0431/1298/8821/files/bbc_english_book_class_12_download_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/3936/7061/files/zimumegupopaduri.pdf
    • https://cdn.shopify.com/s/files/1/0433/5910/9279/files/stnose_carotidienne_athromateuse.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vinufew.pdf
    • https://cdn.shopify.com/s/files/1/0429/9715/3943/files/togilafifotovagil.pdf
    • https://cdn.shopify.com/s/files/1/0432/5533/3027/files/90619828796.pdf
    • https://cdn.shopify.com/s/files/1/0427/8868/3932/files/99003841739.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069bc.bin
e9e6b59bfeb1445bf65bfa19d155bcb9e6a036b29fd3b4676759fcb436182155		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69BC 4152 bytes
font_01_sfnt_off00007856.bin
4d48c425ebef90c2d02d06bcf645bfe766804625a466b4613fba07e24684c3c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7856 1768 bytes
font_02_sfnt_off000080fd.bin
8f1a3e52d247e7df71061f1569d6a56d8a21f6c2375751ed76ea72d2f97efb85		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80FD 5232 bytes
font_03_sfnt_off000092c7.bin
0b3c9ad2ce070d46ea3f77e4e25914d69b0491831954b0855116d4e8315c865f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92C7 10096 bytes

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