Malicious PDF — malware analysis report

Static analysis result for SHA-256 985cb5b9da7dc07a…

MALICIOUS

PDF

36.7 KB Created: 2020-05-20 19:52:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe15b526dfeb49efcdffb9f7e9b8a1bb SHA-1: 7189ff85dddb3bb39dd833c62fcedff572756921 SHA-256: 985cb5b9da7dc07ac1fabd57cbc0191e41b683a1c81178f1eb8cad46d3a36199
62 Risk Score

Malware Insights

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

The PDF document exhibits characteristics of a link farm, embedding a large number of external URLs. The heuristic PDF_SEO_LINK_FARM specifically identifies this pattern, suggesting the document's primary purpose is to host these links. The presence of numerous links to various domains, such as http://scibhl.com/ and http://oneocean.biz/, indicates a likely attempt to distribute malicious content or conduct phishing operations through these external resources. No scripts were extracted from this sample.

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://scibhl.com/uploads/1/3/0/7/130738620/130738620.html#saleen+302+black+label
    • http://oneocean.biz/uploads/1/3/0/5/130588366/sojug_dulat_xuzax.pdf
    • http://acp-ce.com/uploads/1/3/1/4/131453630/vababig.pdf
    • http://goodsbygoldieroxx.com/uploads/1/3/1/4/131437363/8618989.pdf
    • http://ez-whip.com/uploads/1/3/0/5/130589085/36121d0337.pdf
    • http://nartstudios.com/uploads/1/3/0/5/130547771/seroperabozege.pdf
    • http://the-witts.com/uploads/1/3/0/4/130488851/zevusemifew-gasimufi-museka.pdf
    • http://kpspersoneel.nl/uploads/1/3/0/4/130435978/zemelolubifib_posen.pdf
    • http://excellenceinduction.org/uploads/1/3/1/3/131383284/jonubetoguwoxim-wipajate-ruxepu-fomesetefozit.pdf
    • http://gentlycogentmedia.com/uploads/1/3/1/3/131380741/loribu_xasimemelurojof.pdf
    • http://drtronic.com/uploads/1/3/0/4/130478438/wamam_vowawega_xuroxepidoval_senizepebikibiv.pdf
    • http://trelyongallery.com/uploads/1/3/1/8/131871622/9c7ad0e7782c.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_off000062e2.bin
66757fb3f53de4fc56375432bf75ee8ab6e14cb4bd40cb03123deb6b872ab05a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62E2 11192 bytes

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