Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b3a15cac5b537bc…

MALICIOUS

PDF

78.3 KB Created: 2020-04-14 04:16:53 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 41c74e5c40f1f3cd89f3a33f25af68ac SHA-1: 7a56ba83e97c41c1ab0d77e87ff2040e78eb576a SHA-256: 1b3a15cac5b537bc652e6fca500827a143de8f317541b5fd37299f801e6929f1
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which follow a pattern of numeric slugs in the URL path, indicative of a link farm or SEO spam. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a movie download. This suggests the PDF is designed to drive traffic to malicious or spam websites.

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://wavriders.net/uploads/1/3/1/4/131452886/131452886.html#bang+bang+movie+tamil+dubbed+free
    • http://feliperenato.com/uploads/1/3/0/5/130543289/tolegifetugat_lokileti_nifutop.pdf
    • http://christyoldham.com/uploads/1/3/0/5/130551981/zevurij-wegawi.pdf
    • http://middletonandnewbigginparishcouncil.org/uploads/1/3/0/6/130604281/togejajevodalomipe.pdf
    • http://9f60fpk001.com/uploads/1/3/0/5/130551202/7b9c41f.pdf
    • http://unitedmvp.com/uploads/1/3/0/5/130590054/f84c79dd29.pdf
    • http://melissabmorgan.com/uploads/1/3/0/6/130620763/fda38e.pdf
    • http://mrstinakalamaras.com/uploads/1/3/0/6/130639700/4599626.pdf
    • http://jartravelandtourcompany.com/uploads/1/3/0/7/130740456/susome-miporeku.pdf
    • http://debmckay.com/uploads/1/3/0/9/130969148/83f3331e6904394.pdf
    • http://apeventos.com/uploads/1/3/1/4/131406455/ab3bd5c0.pdf
    • http://liholidaylightinstallers.com/uploads/1/3/0/7/130740438/wufigo_bosuto_sefoxo.pdf
    • http://chromainteriorssydney.com/uploads/1/3/0/8/130814308/001cb1.pdf
    • http://howtobehealthy.online/uploads/1/3/0/9/130969368/tixawukokiso-ribezetu.pdf
    • http://incolorartgallery.com/uploads/1/3/0/5/130550729/lotomoto-modogakanudo-guzerokuliguz-bawudowuwimabo.pdf
    • http://liholidayl
    • 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_off0000f34a.bin
5387d4bfa2638e40688f459fd925318c8e005b365a54b49f07ed82c6264f165e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF34A 9368 bytes
font_01_sfnt_off000116ec.bin
32b54217619f9438721b423dc2f4f4da0f78781b0811ea49af2be6b0310ecf56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x116EC 16164 bytes

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