Malicious PDF — malware analysis report

Static analysis result for SHA-256 e15812b499759ba1…

MALICIOUS

PDF

35.4 KB Created: 2020-06-03 23:26:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5d74428f36415b266cfa7b0efabf0057 SHA-1: f62c4ac9dc883b9a58e87f3ffa2ee21aeb1396cb SHA-256: e15812b499759ba137603ffb2a3781ad7ce0fbb800e4c82b548b8727826e79c9
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, many of which appear to be part of a link farm designed to manipulate search engine results or redirect users to malicious content. The document body itself is heavily obfuscated and contains embedded URLs, further supporting the attack pattern of directing users to external, potentially harmful, resources.

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://yakutatautoleasing.com/uploads/1/3/0/7/130776101/130776101.html#eve+iteron+mark+v+fit
    • http://armwrestlinghistory.com/uploads/1/3/1/0/131070806/5022926.pdf
    • http://mytutoringgroup.com/uploads/1/3/1/4/131407310/88be9.pdf
    • http://sta-66-99-58-204.ladse.org/uploads/1/3/0/4/130476462/dokurogirasab.pdf
    • http://gavigrossman.com/uploads/1/3/0/5/130550785/15d7d0d7.pdf
    • http://sanctuaryhealing.net/uploads/1/3/1/3/131384656/jurarekakok_xojejepukov.pdf
    • http://healthierbydesign.org/uploads/1/3/0/4/130435649/xemupedunuri.pdf
    • http://huaxinxianjinqipai.jhamrick.com/uploads/1/3/1/3/131380868/dunimimut-lipefu-nusope.pdf
    • http://immobilienmakler-bogenhausen.de/uploads/1/3/1/8/131856492/jumororo.pdf
    • http://yakutatautoleasing.com/uploads/1/3/0/7/130776101/terms.html
    • http://yakutatautoleasing.com/uploads/1/3/0/7/130776101/dmca.html
    • http://yakutatautoleasing.com/uploads/1/3/0/7/130776101/policy.html
    • https://jupeveni.files.wordpress.com/2020/06/mizibunoveliveg.pdf
    • https://sanolosu.files.wordpress.com/2020/06/nirazefisix.pdf
    • https://rijapev.files.wordpress.com/2020/06/97963841354.pdf
    • https://fiwukezebara.files.wordpress.com/2020/06/40111896690.pdf
    • https://kudikinojov.files.wordpress.com/2020/06/xudabovapomo.pdf
    • https://linutinoruso.files.wordpress.com/2020/06/kekuvepawasusesukigup.pdf
    • https://mapelogi.files.wordpress.com/2020/06/xipujogotogepowu.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f50.bin
665eb30de1e19e390280c6ffbb7fb83c1fa464099760bb6069c29dc9a4446846
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F50 10244 bytes