Malicious PDF — malware analysis report

Static analysis result for SHA-256 facc6dfb7af5a4b3…

MALICIOUS

PDF

46.1 KB Created: 2020-08-22 01:08:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 740b727cd53b286c6e44f5fdcc3f6d5c SHA-1: 6fb339b6b406b9715173ffd11bd3faab34efa17f SHA-256: facc6dfb7af5a4b3758307b41f21937bd25928044221e81b9da7fd39f3a20251
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that triggers the malicious redirect. The presence of a link farm suggests an attempt to distribute malicious content widely. 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.ru/pify?keyword=bodmas+full+form+in+punjabi
    • http://files.accordingtohiswordworshipcenter.com/uploads/1/3/1/4/131437530/5809632.pdf
    • http://files.aparnahowlader.com/uploads/1/3/1/8/131871970/9e043c7082d.pdf
    • http://sosugo.kcrowell.com/uploads/1/3/1/8/131871721/2161640.pdf
    • http://files.thebeprojectllc.com/uploads/1/3/0/7/130775840/fiselilisoruso.pdf
    • http://files.studiogroovefitness.com/uploads/1/3/1/3/131398286/tiponikavibil.pdf
    • https://cdn.shopify.com/s/files/1/0431/5666/8573/files/foferedarejafulomirekodu.pdf
    • https://cdn.shopify.com/s/files/1/0432/6332/8411/files/9204833299.pdf
    • https://cdn.shopify.com/s/files/1/0433/0081/5006/files/simanupitobakobi.pdf
    • https://cdn.shopify.com/s/files/1/0437/1021/8391/files/raxufutasedibow.pdf
    • https://cdn.shopify.com/s/files/1/0432/3475/4728/files/mesajakemo.pdf
    • https://cdn.shopify.com/s/files/1/0435/8258/7039/files/cdc_flu_vaccine_2019.pdf
    • https://cdn.shopify.com/s/files/1/0430/7304/4642/files/22207385409.pdf
    • https://cdn.shopify.com/s/files/1/0429/6127/2983/files/lilaxaxuburupofizomikasop.pdf
    • https://cdn.shopify.com/s/files/1/0437/3128/8215/files/22016087732.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_off0000603c.bin
8a269ae9560e7e628f8f7bfa79d8f6874987fd3ed7ec25317063a453bf9b7c04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x603C 5452 bytes
font_01_sfnt_off000072ab.bin
e1cb5b1031332d5864fb6ce9c2c7729c894d7e9472778f20bdef9edf9e67ff26		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72AB 5208 bytes
font_02_sfnt_off00008631.bin
729e7a67ed38a80f224771d2e4e812a9fed98f1e5a27e9c8d2808078b1d894aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8631 10944 bytes

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