Malicious PDF — malware analysis report

Static analysis result for SHA-256 e515d980689ca56c…

MALICIOUS

PDF

34.4 KB Created: 2020-04-06 06:14:31 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: d18171240a8ec29e1af2924940a9a4da SHA-1: 267110830e33fd3acb3936adf7fdd484a443fade SHA-256: e515d980689ca56c577dc5f695e1875aba8fc299d9149abaedaeb966876db54c
94 Risk Score

Malware Insights

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

The PDF contains numerous external links, a common tactic for SEO poisoning or link farm schemes. The document body, though heavily obfuscated, contains text referencing a 'gun safe owner's manual' and includes URLs that are likely part of this deceptive linking strategy. The ML classifier strongly indicated maliciousness, supporting the assessment of a malicious link distribution attempt.

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://lykkenkommerindefra.dk/uploads/1/3/0/7/130739162/130739162.html#stack+on+gun+safe+owner%27s+manual
    • http://goldsborosinglesclub.com/uploads/1/3/0/6/130622110/mifuliponam.pdf
    • http://ftp2.bercgroup.com/uploads/1/3/0/5/130538817/bagunid.pdf
    • http://tdachospitality.com/uploads/1/3/0/7/130738837/mesiwoderelofur.pdf
    • http://damonsinclairholdings.com/uploads/1/3/0/2/130289498/59376d.pdf
    • http://thechrislapakko.net/uploads/1/3/0/9/130969358/8521659.pdf
    • http://pbhfamilycontracting.com/uploads/1/3/0/2/130292143/e70e85e9.pdf
    • http://mycinderellascloset.com/uploads/1/3/0/2/130291352/guvulapozomeb_pebofupodoga.pdf
    • http://totalwineexperience.com/uploads/1/3/0/6/130639538/5a2032.pdf
    • http://yourrealestateadmin.com/uploads/1/3/0/4/130491444/tivawotukinipoxe.pdf
    • http://prohaie.net/uploads/1/3/0/5/130539584/galubi.pdf
    • http://organicenergysolution.com/uploads/1/3/0/7/130775341/1686634.pdf
    • http://sterilizationcomplications.com/uploads/1/3/0/9/130969191/3739850.pdf
    • http://liroconstruction.com/uploads/1/3/0/2/130288643/4852301c270.pdf
    • http://zhzhgao.com/uploads/1/3/0/3/130323630/rixemutejiw.pdf
    • http://keeora.com/uploads/1/3/0/2/130287493/bovujekobito.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_off00005d11.bin
c738f8c7638909435d770a02392eed4de4c5a03d9a2dd4fb734a377bce4500d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D11 8076 bytes

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