Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f68108a083ca37d…

MALICIOUS

PDF

42.5 KB Created: 2020-03-14 10:59:17 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-04
MD5: 888d6c6b0fc2aeebaf648fade4f3b48b SHA-1: d8324f5e63f0de684b378c7b11152c589932808e SHA-256: 8f68108a083ca37d348cbb23fbbba0ce2c28c2753e67c6c0f6ce7115c0640ed3
96 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are dynamically generated and point to unrelated domains. The document body, though partially obfuscated, contains text related to medication side effects, suggesting a lure to trick users into visiting these malicious links. The primary intent appears to be driving traffic to a link farm for SEO manipulation or potentially hosting further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://3ljmr.bpmtc.com/uploads/1/3/0/5/130588922/130588922.html#efectos+secundarios+dela+metformina+500+mg PDF link annotation
    • http://caitlynorsakportfolio.com/uploads/1/3/1/0/131070646/serevidewa-dipew-wuxurebofinalo-kopewos.pdfIn PDF document text
    • http://sincelastscrum.com/uploads/1/3/0/6/130605044/6584128.pdfIn PDF document text
    • http://www.breezymountainfarms.com/uploads/1/3/0/6/130603785/6219120.pdfIn PDF document text
    • http://santacruznatureyoga.com/uploads/1/3/0/9/130969532/tedalevenadeker.pdfIn PDF document text
    • http://hostmaster.praxis-dr-noe.de/uploads/1/3/0/7/130775740/95fe8ee.pdfIn PDF document text
    • http://kickstartyourlife.de/uploads/1/3/0/7/130738657/8c197e.pdfIn PDF document text
    • http://myegiftvoucher.com/uploads/1/3/0/2/130272231/witijirogiwumavapano.pdfIn PDF document text
    • http://billsduckcarving.club/uploads/1/3/0/2/130287914/savowezamisid.pdfIn PDF document text
    • http://shotcomposer.com/uploads/1/3/0/4/130476141/a0f6aaf.pdfIn PDF document text
    • http://candy4urcloset.com/uploads/1/3/0/3/130323185/depipolojileb-guziw.pdfIn PDF document text
    • http://cainesauto.com/uploads/1/3/0/7/130738723/6745613.pdfIn PDF document text
    • http://loveyouleongti.me/uploads/1/3/0/7/130776750/7001784.pdfIn PDF document text
    • http://riverside-cottage-cornwall.co.uk/uploads/1/3/1/0/131071220/wakix-golivajulamala.pdfIn PDF document text
    • http://saintaidansfestival.co.uk/uploads/1/3/0/4/130483710/37c08f15.pdfIn PDF document text
    • http://www.snowyowlphoto.net/uploads/1/3/0/6/130620511/wujelavugekumamunegi.pdfIn PDF document text
    • http://modernblueband.com/uploads/1/3/0/5/130544954/bac60b01fae245.pdfIn PDF document text
    • http://trueblueroofing.com/uploads/1/3/0/4/130476276/diluginonif_ziselekikajomif.pdfIn PDF document text
    • http://www.tequillers.com/uploads/1/3/0/6/130604982/2734561.pdfIn PDF document text
    • http://monsterworksmgmt.com/uploads/1/3/0/6/130639199/kisovagunijura-pobaki.pdfIn PDF document text
    • http://karenkelleyperkins.com/uploads/1/3/0/9/130968958/vonasuvomogad_pevutomukas_lupanusot_leliregarikun.pdfIn PDF document text
    • http://creamcitycrates.net/uploads/1/3/0/3/130379475/bazukifulisix.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
🗂 Part of campaign: hersheypetfood.com 4 samples

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007953.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7953 9080 bytes
SHA-256: 232cedff00122d631d4148f32d8110c4df0050e2561ebdd376e85bff3c4a72d8

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