Malicious PDF — malware analysis report

Static analysis result for SHA-256 331667697054492c…

MALICIOUS

PDF

57.6 KB Created: 2020-03-20 15:19:10 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 11762469dd53980f0ef8ef0798616f69 SHA-1: 9109c31fe07815c31c88b35ca7e1846690608b64 SHA-256: 331667697054492cdbb13c8fca86ceb98842ac96edc70df124193603fee2053f
94 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by an ML classifier. It contains a large number of external links, many pointing to other PDF files on various domains, indicating a link farm or SEO abuse tactic. The primary URL extracted, http://joshleephotojournalist.org/uploads/1/3/0/8/130814457/130814457.html#trajes+tipicos+mexicanos+jalisco+mexico, suggests a lure related to Mexican traditional clothing, which is likely a deceptive pretext to drive traffic to the linked resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://joshleephotojournalist.org/uploads/1/3/0/8/130814457/130814457.html#trajes+tipicos+mexicanos+jalisco+mexico
    • http://4bcenter.com/uploads/1/3/0/7/130739824/wofugemolilizojutiba.pdf
    • http://www.hookahwiz.com/uploads/1/3/0/4/130476940/fuzesumitetuvo-wopezeni.pdf
    • http://milesbetter.info/uploads/1/3/0/7/130775304/6691434.pdf
    • http://ns2rebel.com/uploads/1/3/0/6/130621995/1773881.pdf
    • http://numb-skullz.com/uploads/1/3/0/6/130621484/633285.pdf
    • http://mta-sts.mx.ocracokesportfishing.com/uploads/1/3/0/2/130288498/810852b.pdf
    • http://mytjscatering.com/uploads/1/3/0/8/130874115/niravunom_rujok.pdf
    • http://argemployee.com/uploads/1/3/0/9/130969571/gosapigux.pdf
    • http://qraftsbyqueen.com/uploads/1/3/0/2/130287735/zasof-xerid-suluvij-vosezut.pdf
    • http://magicalmomentsbymichael.com/uploads/1/3/0/3/130379244/tagusefaji.pdf
    • http://airsystems.designpreviewer.com/uploads/1/3/0/6/130604247/88bc0dc7d475ee4.pdf
    • http://mail.bellaluceskin.com/uploads/1/3/0/6/130605044/lapiruzufi-vobozasi.pdf
    • http://egophenomena.com/uploads/1/3/0/4/130435786/mubokebufap-kipozaweta-fonixenejawuk.pdf
    • http://applegateovercrossings.com/uploads/1/3/0/6/130604788/kofuraraliwu.pdf
    • http://thagymsiouxcity.com/uploads/1/3/0/7/130776740/1250392.pdf
    • http://kaleoramiah.com/uploads/1/3/0/7/130739864/pipitojunes.pdf
    • http://adminmuse.com/uploads/1/3/0/3/130323315/f94f61db46662.pdf
    • http://spclsolomons.com.au/uploads/1/3/1/0/131069987/d5a2b9.pdf
    • http://hostmaster.caketasticcreations.co.uk/uploads/1/3/0/7/130776351/4955738.pdf
    • http://www.freetoteachvt.com/uploads/1/3/0/5/130538937/2453922.pdf
    • http://hostmaster.travelofamerica.com/uploads/1/3/0/3/130323421/122667.pdf
    • http://alaskaprawnbait.com/uploads/1/3/0/6/130640155/kavetod.pdf
    • http://surgeryla.com/uploads/1/3/0/3/130379114/7231021.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000076dd.bin
6bf6324bca12fcf3828f1600cf9c9ccc500e4ee381c4083a5886a0162f537b02		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76DD 8752 bytes
font_01_sfnt_off0000961d.bin
36137e14246231c7c5f22892d4184dd22ce7a62212905df18fdde41197df9553		 pdf-font-stream PDF embedded font (sfnt) at offset 0x961D 4400 bytes
font_02_sfnt_off0000a412.bin
bb48f2028fe1ad439637a07eb22338af9f1535ec846d773e7d96d9d333a872f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA412 2644 bytes
font_03_sfnt_off0000ad60.bin
6d720e285746d4abdb730d4ed3117ed90bf97d9ae56e0edad20b1e206687ff1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAD60 5168 bytes
font_04_sfnt_off0000bd76.bin
1a4fe0a4490a57cd77f1000fee9ad4784d9ddb8a6a3fa71562bf7d7faef13670		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBD76 16880 bytes

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