Malicious PDF — malware analysis report

Static analysis result for SHA-256 577b1ac714543a05…

MALICIOUS

PDF

45.8 KB Created: 2020-07-11 18:38:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7254c0a5c1aea43e15cb64ea734e0524 SHA-1: 579d6ddcc91db19b54ef3005033ed6a43de2ef90 SHA-256: 577b1ac714543a05978f2dff99c9b2bef2b706c50f29fed104f6f8a316684277
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for redirecting users to malicious sites. One prominent link, 'https://ttraff.com/pify?keyword=caso+enron+resumen', is flagged as a malicious redirector. The document body, though partially corrupted, contains text related to 'Caso enron resumen' and also embeds the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a large number of external PDF links further supports the malicious intent.

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=caso+enron+resumen
    • http://files.christyintheclassroom.org/uploads/1/3/0/9/130970009/9779251.pdf
    • http://files.kerrymaymakes.com/uploads/1/3/0/8/130813799/0a74204d3a91.pdf
    • http://files.yestoyouthgala.org/uploads/1/3/2/3/132302883/xedix.pdf
    • http://files.nataliebeephotography.com/uploads/1/3/1/0/131070112/1006130.pdf
    • http://files.pipersnectar.com/uploads/1/3/0/8/130814133/3501998.pdf
    • http://files.pamsteashoppe.com/uploads/1/3/1/3/131384789/59b03f6f49c09c.pdf
    • http://files.merrifieldseminar.com/uploads/1/3/2/7/132710655/7749287.pdf
    • http://files.warrenmottboosters.com/uploads/1/3/1/4/131408353/mugejenarivese.pdf
    • http://files.4therochesterraiders.org/uploads/1/3/1/4/131437376/9507516.pdf
    • http://files.jorjahudsonportfolio.com/uploads/1/3/1/8/131872048/4151772.pdf
    • https://fajetiw.files.wordpress.com/2020/06/jozotiw.pdf
    • https://zotiziza.files.wordpress.com/2020/06/12349944084.pdf
    • https://bupovewimu.files.wordpress.com/2020/07/vizevi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12584167006.pdf
    • https://cdn.shopify.com/s/files/1/0433/6985/7176/files/xesomolowaduk.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96617946950.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74832969368.pdf
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/27915729376.pdf
    • https://cdn.shopify.com/s/files/1/0432/0742/6216/files/webiweja.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xifadek.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/28851780814.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_off00006add.bin
95521d6ff2093f8a2cc12ecf888b7c15d17ea402a6b512dfb444d0f7beeb3c6d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6ADD 2012 bytes
font_01_sfnt_off0000743e.bin
cdf29ba57d723dc0b95efa3f4233078f532f36e281b3d0531d900ea845501f61
pdf-font-stream PDF embedded font (sfnt) at offset 0x743E 4576 bytes
font_02_sfnt_off0000839a.bin
7934d23e617d49a8a5e06b31087acd0555b62be1215035000df8a74a89adcccd
pdf-font-stream PDF embedded font (sfnt) at offset 0x839A 11628 bytes