Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b081cabbfbfaa47…

MALICIOUS

PDF

41.7 KB Created: 2020-08-22 00:48:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1daee9952458872d46b4ee084615720e SHA-1: f32a2e4459d2b958800099015912f90d998096c7 SHA-256: 2b081cabbfbfaa471e5b933d67c2c7038eec650ed908427a26a70aac38ce32be
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 at 'https://ttraff.com/pify?keyword=islamic+calendar+2018+pakistan+pdf'. This URL is presented in the document body as a search result, indicating a lure to a malicious site. The ML classifier also strongly flagged this PDF as malicious.

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=islamic+calendar+2018+pakistan+pdf
    • http://xikeluj.dsaarchitects.net/uploads/1/3/1/4/131407178/9448879.pdf
    • http://files.nofires.net/uploads/1/3/2/6/132696249/bakigazesakegoxu.pdf
    • http://files.sivankaufman.com/uploads/1/3/1/3/131381799/5f6fa6ef6.pdf
    • https://cdn.shopify.com/s/files/1/0436/9648/8613/files/96085462488.pdf
    • https://cdn.shopify.com/s/files/1/0440/3481/8198/files/bivut.pdf
    • https://cdn.shopify.com/s/files/1/0431/8068/7524/files/88710068290.pdf
    • https://cdn.shopify.com/s/files/1/0439/5306/2046/files/stadsplan_kortrijk_centrum.pdf
    • https://cdn.shopify.com/s/files/1/0428/8475/9711/files/78106358773.pdf
    • https://cdn.shopify.com/s/files/1/0428/4094/8892/files/green_bay_crime_reports_facebook.pdf
    • https://cdn.shopify.com/s/files/1/0430/4103/0293/files/57393872030.pdf
    • https://cdn.shopify.com/s/files/1/0440/8151/2613/files/90610010565.pdf
    • https://cdn.shopify.com/s/files/1/0429/0750/0711/files/69836088296.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000603f.bin
0e5aed5dee6a0c728b5c7e053d05eda8c3969080abd3828acd94ec7765e579ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x603F 5824 bytes
font_01_sfnt_off000073f4.bin
514587b50aa0e721a769dc87f140e97d432d07e665480fef5062a85b1dedbd96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73F4 12172 bytes

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