Malicious PDF — malware analysis report

Static analysis result for SHA-256 79dd5c9c43876aee…

MALICIOUS

PDF

39.5 KB Created: 2020-08-21 08:39:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 76a02d2d9ce4cf6aec3c8b400fd55b59 SHA-1: a3467b5d7287649dbc3b4554cfcba00d2402f19a SHA-256: 79dd5c9c43876aee934b8ffb60a27e5fe3f5edf4eb63642d09feaef01b21c3bd
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text referencing a movie teaser and includes the malicious URL. The heuristic firings confirm the presence of a malicious redirector link and a link farm within the PDF, indicating an attempt to lure the user to a harmful site.

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.cc/pify?keyword=chikati+gadilo+chithakotudu+movie+teaser
    • http://files.whhsvisualarts.org/uploads/1/3/0/7/130739937/470f859068ba3.pdf
    • http://dobasuj.thepaintbarpaintings.com/uploads/1/3/1/8/131856257/zebodoja_xotelup.pdf
    • http://files.ndsca.us/uploads/1/3/0/9/130969048/a12a8c9a3d.pdf
    • http://fexurob.shelbyveterinaryservice.com/uploads/1/3/0/7/130776783/ca35eeb19b.pdf
    • https://cdn.shopify.com/s/files/1/0431/7950/7870/files/awaken_the_giant_within_you_book.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7997453156.pdf
    • https://cdn.shopify.com/s/files/1/0437/3925/0853/files/41567122426.pdf
    • https://cdn.shopify.com/s/files/1/0434/7327/2998/files/algebra_1_math_workbook.pdf
    • https://cdn.shopify.com/s/files/1/0435/3880/8991/files/nikexemitefepaxufugiwus.pdf
    • https://cdn.shopify.com/s/files/1/0432/5713/5257/files/pesuwaromoxowudubotu.pdf
    • https://cdn.shopify.com/s/files/1/0438/4748/3552/files/zevebo.pdf
    • https://cdn.shopify.com/s/files/1/0434/6429/4557/files/repasones.pdf
    • https://cdn.shopify.com/s/files/1/0429/0124/2022/files/lenotip.pdf
    • https://cdn.shopify.com/s/files/1/0433/7300/2902/files/83017666224.pdf
    • https://cdn.shopify.com/s/files/1/0435/4267/5608/files/83925463904.pdf
    • https://cdn.shopify.com/s/files/1/0435/3146/8951/files/zevonajufalodip.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kilezibuvi.pdf
    • https://cdn.shopify.com/s/files/1/0435/8324/2401/files/57217513904.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_off00004f85.bin
8c98dc4374e19ae050bf0e1f1c317f5374af67fd1dd79c627047f679ac83d896
pdf-font-stream PDF embedded font (sfnt) at offset 0x4F85 5276 bytes
font_01_sfnt_off0000617e.bin
e755aa70fd28b20505f62fecba319720317339b2c550fb24ac45624da50be178
pdf-font-stream PDF embedded font (sfnt) at offset 0x617E 9672 bytes
font_02_sfnt_off000082af.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x82AF 4324 bytes