Malicious PDF — malware analysis report

Static analysis result for SHA-256 d45ff7c3c02f2deb…

MALICIOUS

PDF

35.7 KB Created: 2020-03-11 06:39:08 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 73ecf0072f8a9a259d8be6fb6f02519c SHA-1: 7ce318e59b91df0f71552dfd48c796a58180a3fe SHA-256: d45ff7c3c02f2deba5f03c0deabdb7e8fed02e4458ba10407fb5ed01e7a15e96
62 Risk Score

Malware Insights

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

The PDF contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior, indicating the document's primary purpose is to distribute these links. No scripts were extracted from this sample, limiting further analysis of its behavior.

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://seraph.shop/uploads/1/3/0/4/130476310/130476310.html#fetal+growth+restriction+acog
    • http://www.collegeallready.org/uploads/1/3/0/7/130776462/litidaw-defawe-fesexeta-zizevirajax.pdf
    • http://artonoffer.net/uploads/1/3/0/6/130620561/9af4a98fe.pdf
    • http://artcoven.com/uploads/1/3/0/5/130539185/b9c8b398700937.pdf
    • http://www.gentleyogaflow.net/uploads/1/3/0/3/130323733/fasigivijiva_zuramuzabaja_govepiwo_wuxetur.pdf
    • http://mta-sts.pitchforkpreserves.com/uploads/1/3/0/3/130324370/5777870.pdf
    • http://woodlandmountainretreat.com/uploads/1/3/0/5/130541116/fotisuvewuvanaj.pdf
    • http://prefabbuildingsystems.com/uploads/1/3/0/5/130551971/vekasanedak_dafogupuputabi_mamanurikavuze_sumumobap.pdf
    • http://isellthis.net/uploads/1/3/0/5/130540928/bopimunadugenijum.pdf
    • http://sherwoodduplex.com/uploads/1/3/0/5/130589250/8831601.pdf
    • http://wildlifeconservationservices.org/uploads/1/3/0/5/130541743/xanexijala-reragifadavubov-rubem.pdf
    • http://thejesusmission.com/uploads/1/3/0/6/130639873/4aaa52cdfdb66a.pdf
    • http://davis-vision.net/uploads/1/3/0/5/130547728/seguneguvoner-robosuj-gamilolutojez.pdf
    • http://kimloveshair.com/uploads/1/3/0/7/130739297/b422cd3fcee58d.pdf
    • http://littlefristonlodge.com/uploads/1/3/0/5/130589191/gakuvitez-begigafavid.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_off0000637d.bin
daaa8ebb849c184c4434273d681537db73921e50cf08d1f2112cc5f58a28fab8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x637D 7840 bytes

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