Malicious PDF — malware analysis report

Static analysis result for SHA-256 b79c675f12761991…

MALICIOUS

PDF

37.3 KB Created: 2020-07-31 07:17:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93008208e58ff885d84985e5fbb4ce1c SHA-1: 418f7b3254ff8d34ad53554897b9b8a153fc3916 SHA-256: b79c675f127619916ba77cdc0ed35821d709a9bc227b32f687816784d33ea858
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=jurnal+batuan+metamorf+pdf'. Additionally, it exhibits a PDF link farm heuristic, embedding numerous external PDF links, with 'https://cdn.shopify.com/s/files/1/0435/2750/4024/files/saluzid.pdf' being the first identified. The document body is heavily obfuscated, preventing a clear understanding of its content, but the presence of these malicious links strongly suggests a phishing or malware delivery attempt.

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=jurnal+batuan+metamorf+pdf
    • http://files.ibomusicalvoyage.com/uploads/1/3/1/4/131452733/3371117.pdf
    • http://files.eurosandproductions.com/uploads/1/3/0/9/130970004/livabusol-vopipeburubasej-vutajaf.pdf
    • http://files.todayhousing.com/uploads/1/3/0/9/130969243/vanamogukalazak.pdf
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/saluzid.pdf
    • https://cdn.shopify.com/s/files/1/0430/8487/3879/files/77541263896.pdf
    • https://cdn.shopify.com/s/files/1/0432/5516/9186/files/93622845378.pdf
    • https://cdn.shopify.com/s/files/1/0435/0800/7072/files/49286224503.pdf
    • https://cdn.shopify.com/s/files/1/0438/4532/0861/files/navogavodakado.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pujofupokutesigitugut.pdf
    • https://cdn.shopify.com/s/files/1/0431/6345/1560/files/dokagomu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0360/8214/files/zagumuzowigedujusan.pdf
    • https://cdn.shopify.com/s/files/1/0433/0366/5822/files/ruvobudugozuxozamim.pdf
    • https://cdn.shopify.com/s/files/1/0440/6129/4757/files/70844506707.pdf
    • https://cdn.shopify.com/s/files/1/0430/0131/5491/files/pepasozezeji.pdf
    • https://cdn.shopify.com/s/files/1/0437/0300/9434/files/tifobufisebejibawijik.pdf
    • https://cdn.shopify.com/s/files/1/0432/8439/8244/files/94399307459.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_off000057c6.bin
c4b8eb356bfc440c1216e2030af8eb1a0f5cf438f808d48c6d3495bb66a69ad6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57C6 4972 bytes
font_01_sfnt_off0000688b.bin
a64fe4e41b630505daa3b94b68df22d834f19f59ae416cce1f385b9355153579		 pdf-font-stream PDF embedded font (sfnt) at offset 0x688B 9260 bytes

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