Malicious PDF — malware analysis report

Static analysis result for SHA-256 40ef0f3b6459d0c2…

MALICIOUS

PDF

41.2 KB Created: 2020-03-27 12:43:54 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: f00a30538fff070971798a8701f39d82 SHA-1: e41aa848e99d5171b931f6fd716622257eea5a8f SHA-256: 40ef0f3b6459d0c226d263b790fd81c148d90ef7c5255f049b958542985cf1cc
94 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF documents hosted on different domains. This suggests the primary purpose is to act as a link farm, potentially for SEO manipulation or to distribute further malicious content. No scripts were extracted from this sample.

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://atasteofjamaicaandmore.com/uploads/1/3/0/7/130776246/130776246.html#1999+honda+foreman+450+clutch+adjustment
    • http://advancedleadershipacademylaunch.com/uploads/1/3/0/6/130622048/9c70c7.pdf
    • http://vesnas-sweet-stitches-boutique.com/uploads/1/3/0/6/130621450/fojon-toxuf.pdf
    • http://oxforddayschool.org/uploads/1/3/0/5/130590257/palajugudij.pdf
    • http://www.wsbcjointhejourney.org/uploads/1/3/0/6/130621086/nisiluxanimuvus.pdf
    • http://3coconut.com/uploads/1/3/0/8/130874001/4412549.pdf
    • http://www.harmonybaptistchurch.com.au/uploads/1/3/0/3/130379475/raraxapedosinojak.pdf
    • http://jbuniquegifts.com/uploads/1/3/0/7/130740054/nujironabu-juzipavod-batemulujixoz-wefab.pdf
    • http://keepmewalking.info/uploads/1/3/1/1/131164152/punedu.pdf
    • http://humanementalhealth.org/uploads/1/3/0/2/130270924/576827.pdf
    • http://www.lawrencemidwife.com/uploads/1/3/0/6/130621937/sobilexo_fedexatuvukar_dipexex_pubevi.pdf
    • http://hugieslife.com/uploads/1/3/0/5/130589195/filixokiruxubajop.pdf
    • http://joinocms.org/uploads/1/3/0/7/130740510/dizimowuli_lirukalos_titizib.pdf
    • http://www.nhdjarvik7.com/uploads/1/3/0/6/130620314/4897edafb3.pdf
    • http://cakminecraft.com/uploads/1/3/0/6/130620858/820553.pdf
    • http://www.thedeerwhispererwoodworks.com/uploads/1/3/0/5/130588289/peduviximut.pdf
    • http://goblintale.com/uploads/1/3/0/6/130604636/c93e6a961c0f.pdf
    • http://grassninjausa.com/uploads/1/3/0/7/130776113/545c63789ef9.pdf
    • http://jneffinspections.com/uploads/1/3/0/8/130813876/8599867.pdf
    • http://pop-mall.com/uploads/1/3/0/5/130539783/dd3dd.pdf
    • http://greenrootsgourmet.com/uploads/1/3/0/2/130272080/381db14.pdf
    • http://www.odazzitclub.com/uploads/1/3/0/6/130621130/tasowuxizezisuzekas.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_off0000769c.bin
933025865ca09f69891270d05dbcf25b124135b4ec38d2b8946262f2349c948e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x769C 7868 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.