Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcf03b6dccb74994…

MALICIOUS

PDF

34.9 KB Created: 2020-03-27 13:26:46 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8422a0eab08b6ac1b87408132da600df SHA-1: 0beb5268b555da91110ed39bdbe2b32c472c22b2 SHA-256: fcf03b6dccb74994988ce52cf4befa74aeecd81cb304952222b850decf11d948
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links to other PDF files hosted on various domains. This pattern is indicative of SEO poisoning or a link farm designed to drive traffic to malicious or low-quality content. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of specific user interaction lures.

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://blackhawbuilders.com/uploads/1/3/1/3/131380078/131380078.html#apps+concordancia+strong
    • http://adimef.com/uploads/1/3/0/5/130588230/63968.pdf
    • http://lakeallatoonacleanup.com/uploads/1/3/0/5/130590499/5813973.pdf
    • http://ontarioboudoir.com/uploads/1/3/0/6/130640071/terusipavegi.pdf
    • http://topmartialarts864.com/uploads/1/3/0/4/130476135/72d8e441.pdf
    • http://doubleknives.com/uploads/1/3/0/5/130588654/bivilasulapoxisilu.pdf
    • http://squadronheadquarters.com/uploads/1/3/0/3/130379509/mezumogixuzewup.pdf
    • http://ivibuildingservicesptyltd.com/uploads/1/3/0/7/130776553/sojugajedut-getovuwinarajim.pdf
    • http://careerlatitude.net/uploads/1/3/0/6/130620574/puxagape.pdf
    • http://thechinabest.com/uploads/1/3/0/5/130590548/febosokelesisas.pdf
    • http://iwakeupwithmakeup.net/uploads/1/3/0/5/130550955/musat_fekana_lowupidisapizuj_soxob.pdf
    • http://smallsuttons.com/uploads/1/3/0/7/130776319/jovosekowojeja.pdf
    • http://mydripconnect.com/uploads/1/3/0/6/130639790/vutituruduropivoxi.pdf
    • http://jarrettdapier.com/uploads/1/3/0/6/130605044/gulikolepemar.pdf
    • http://www.ottawawakingdream.ca/uploads/1/3/0/8/130874153/5512431.pdf
    • http://theposhpublicist.com/uploads/1/3/0/2/130274378/6282483.pdf
    • http://jumpstartyourlifewithjenna.com/uploads/1/3/0/4/130435729/5857098.pdf
    • http://apexninjutsu.net/uploads/1/3/0/2/130270781/pipovadinukid.pdf
    • http://bctee.com/uploads/1/3/0/4/130476322/fabe5c5e0675cd.pdf
    • http://johnkconstruction.com/uploads/1/3/0/8/130873735/2258151.pdf
    • http://trhillcrimson.com/uploads/1/3/0/6/130620893/tubobipukomito_fumaxawaremipu_sifunofol.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_off00005f97.bin
5c05a0daa4d8a78a32ba60f7d50c5ed7ee8b0812a9fb32cdc3a7de672154258e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F97 8304 bytes

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