Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0c0da245e1c6bce…

MALICIOUS

PDF

46.0 KB Created: 2020-08-10 17:06:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49535c0008ad55a01e2e7d5c8d20163b SHA-1: 0556e3cbe1015ea703127d5272be3b22b72e0de8 SHA-256: d0c0da245e1c6bcef3be178c4dd09c8ffce148e3b6fcca3fe4a3c2d6726b1fb1
120 Risk Score

Malware Insights

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

The PDF document contains numerous links, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to a 'bikini body guide' and the malicious URL, suggesting a lure for users to click the link. The presence of a link farm further indicates an attempt to distribute malicious content.

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=bikini+body+guide+2.+0+pdf+gratis
    • http://files.bearcrack808.com/uploads/1/3/0/7/130738513/danilebugetojabo.pdf
    • http://masasive.kathiesharkey.com/uploads/1/3/1/3/131384635/5734315.pdf
    • http://ruvanixaz.norwegianmade.com/uploads/1/3/1/3/131381464/xajubiz-bizudakom-pebusutap.pdf
    • https://cdn.shopify.com/s/files/1/0429/2516/2652/files/onenote_ipad_annotate.pdf
    • https://cdn.shopify.com/s/files/1/0428/4101/4438/files/23941449825.pdf
    • https://cdn.shopify.com/s/files/1/0427/6640/1692/files/31447672942.pdf
    • https://cdn.shopify.com/s/files/1/0430/0098/7811/files/gastropoda_adalah.pdf
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/62350101225.pdf
    • https://cdn.shopify.com/s/files/1/0434/6249/2313/files/90605020384.pdf
    • https://cdn.shopify.com/s/files/1/0431/5735/6695/files/basic_of_inorganic_chemistry.pdf
    • https://cdn.shopify.com/s/files/1/0431/2721/0144/files/bloodborne_pathogens_training.pdf
    • https://cdn.shopify.com/s/files/1/0437/0658/1147/files/33828451103.pdf
    • https://cdn.shopify.com/s/files/1/0431/3910/4930/files/rovidisux.pdf
    • https://cdn.shopify.com/s/files/1/0434/9942/1856/files/suzupekixixarita.pdf
    • https://cdn.shopify.com/s/files/1/0432/7840/1700/files/repabunizozalavososos.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_off00005e0c.bin
5dce03adec25ac71abade6353eb17ec7fed7e31966d90bb9cebc4591c31e25a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E0C 5836 bytes
font_01_sfnt_off0000720b.bin
f36b58fa5aff5428f0edf685d8a564997c9afb748669bc346fd91b304e7bfd80		 pdf-font-stream PDF embedded font (sfnt) at offset 0x720B 10288 bytes
font_02_sfnt_off00009569.bin
844cb084336e143bceaacd7de948136837ca80d958068760f33a7e0e858d23f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9569 16320 bytes

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