Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc8dfde291e529ee…

MALICIOUS

PDF

43.7 KB Created: 2020-08-11 21:47:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62e7898b8425531ed8fc0029de9b0c3b SHA-1: 7ca4929753d0064d441e82c4058abfd0b1bc5dc5 SHA-256: fc8dfde291e529ee81cd68dfaed5d83483d3690e6c9ce1df807186ca28ce99f2
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious infrastructure, disguised with a search query related to Excel VLOOKUP and HLOOKUP examples. This suggests a phishing or social engineering attack aiming to lure the user to a malicious site. The PDF also contains a large number of external links, many pointing to Shopify, which is characteristic of SEO link farm abuse to improve search engine ranking for malicious content. No scripts were extracted from this sample.

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=contoh+soal+excel+vlookup+dan+hlookup+dan+jawabannya+pdf
    • http://files.ipadbootcampforparents.com/uploads/1/3/0/7/130775249/joromagidoxi.pdf
    • http://files.rebeccaedwardsartist.com/uploads/1/3/1/3/131384359/wisexotefiwa.pdf
    • http://files.socta.info/uploads/1/3/0/7/130740483/7888620.pdf
    • http://files.kghousingcoop.ca/uploads/1/3/1/4/131437443/gekarem-dulunuka.pdf
    • https://cdn.shopify.com/s/files/1/0436/3472/0928/files/cantigas_de_santa_maria_guitarra.pdf
    • https://cdn.shopify.com/s/files/1/0429/0006/2367/files/13693740523.pdf
    • https://cdn.shopify.com/s/files/1/0430/5531/7149/files/27699569599.pdf
    • https://cdn.shopify.com/s/files/1/0430/3729/4754/files/22270996556.pdf
    • https://cdn.shopify.com/s/files/1/0433/6454/8762/files/madres_y_abuelas_de_plaza_de_mayo.pdf
    • https://cdn.shopify.com/s/files/1/0435/0767/9387/files/persamaan_dasar_akuntansi_pemerintah.pdf
    • https://cdn.shopify.com/s/files/1/0430/7625/5897/files/56130413210.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/67572949107.pdf
    • https://cdn.shopify.com/s/files/1/0431/8363/6644/files/vekawowupolenaru.pdf
    • https://cdn.shopify.com/s/files/1/0440/7921/8840/files/pazijawotukataxa.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_off00005d34.bin
cec75ec3d8b84b526adc0bfae46d2285e55d4ea99042ee9918f74073cc57b7be
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D34 5604 bytes
font_01_sfnt_off00007060.bin
4e5ba019a62544fce603dd9cf0d30a905ae9dcaf076ebe40468822ae9c0ebb59
pdf-font-stream PDF embedded font (sfnt) at offset 0x7060 10324 bytes
font_02_sfnt_off000093a7.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x93A7 4324 bytes