Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa5d490aff26c1b8…

MALICIOUS

PDF

45.3 KB Created: 2020-08-04 02:16:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 573a6c8d4e01a690606145b80a21a474 SHA-1: 0c52456659d2e191f477df9acf9d2786487046ec SHA-256: fa5d490aff26c1b89d7d14b8d21e40610b7ae32cc61d50e1603b644658dd6aa1
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file contains multiple embedded links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Ibps po exam syllabus 2020 pdf' and the malicious URL. This suggests a phishing or social engineering attack aiming to trick users into visiting a malicious site by impersonating a legitimate document.

Heuristics 3

  • 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.
  • 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=ibps+po+exam+syllabus+2020+pdf
    • http://files.brothersboudreaux.com/uploads/1/3/1/8/131871730/9aefb109b9ae.pdf
    • http://files.cubaselloffs.ca/uploads/1/3/1/4/131437873/21ee17807e86fa.pdf
    • http://files.animalhealthcentre.ca/uploads/1/3/0/7/130776647/fadoxebezesekixob.pdf
    • http://files.cubaselloffs.ca/uploads/1/3/
    • https://cdn.shopify.com/s/files/1/0432/0319/9136/files/guzatodu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lonub.pdf
    • https://cdn.shopify.com/s/files/1/0438/8788/6488/files/kikasepuxawigu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9468/8412/files/95377828786.pdf
    • https://cdn.shopify.com/s/files/1/0440/8298/7158/files/butixu.pdf
    • https://cdn.shopify.com/s/files/1/0429/1202/2691/files/kizulukixodiz.pdf
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/gijamamirebufafibirodap.pdf
    • https://cdn.shopify.com/s/files/1/0433/0792/5654/files/21201331463.pdf
    • https://cdn.shopify.com/s/files/1/0430/7632/1434/files/dezodefebijitimuwuj.pdf
    • https://cdn.shopify.com/s/files/1/0429/8627/4977/files/magamazatilojiwifemux.pdf
    • https://cdn.shopify.com/s/files/1/0431/6758/0322/files/ximuxironuxetasojafi.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_off00007205.bin
d02a75beff383cfaeaec2624be4baec270a1535a1a222452a84c501ed7e38e99		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7205 5612 bytes
font_01_sfnt_off00008513.bin
d39d4626b88cd2eaa9f0c7adf1c5073d6bdd83cd61d5aedcceef6335778019c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8513 10340 bytes

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