Malicious PDF — malware analysis report

Static analysis result for SHA-256 89f833ca7043a161…

MALICIOUS

PDF

39.3 KB Created: 2020-05-21 09:42:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dab2774cb1073d54abc37189f90241a6 SHA-1: 95c9fb573e6d2a001458d165d087eff61b1a36f2 SHA-256: 89f833ca7043a161013188464325ad5ac44fcc6b08689c62356b311e03ccf821
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains numerous external links, a common tactic for SEO poisoning and redirecting users to malicious sites. The document body, though partially corrupted, suggests a lure related to a 'Cen-tech portable battery charger manual'. The ML classifier strongly flagged this PDF as malicious. The primary attack pattern involves directing users to a network of linked websites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://beyoutiflychicbags.com/uploads/1/3/0/9/130969036/130969036.html#cen-+tech+portable+battery+charger+manual
    • http://galeriedanielvignal.com/uploads/1/3/0/5/130546153/5d8b3.pdf
    • http://leadandthriveconsulting.com/uploads/1/3/0/5/130550667/sedolizuropix-xotot-welixazolul-dejukunu.pdf
    • http://titletownteam.com/uploads/1/3/0/8/130814063/revajezezu_jerolimojatoxet.pdf
    • http://puremedicinebag.org/uploads/1/3/1/1/131163712/tivabuwew-xalel.pdf
    • http://forclearfield.com/uploads/1/3/0/9/130969865/1237390.pdf
    • http://browsbymace.com/uploads/1/3/0/6/130620568/dc5cc95d1f3f8.pdf
    • http://freedomofheart.org/uploads/1/3/0/2/130270823/1406779.pdf
    • http://futsal-regensburg.de/uploads/1/3/0/7/130776726/rerasifawiba_suvej_miwazozu_zowaragakakipe.pdf
    • http://effortless-beaute.com/uploads/1/3/0/7/130739152/japepexezu.pdf
    • http://earn2enjoy.com/uploads/1/3/0/7/130738652/5069d7c0d3b.pdf
    • http://misjawees.com/uploads/1/3/1/0/131070604/4781305.pdf
    • http://seancastaneda.com/uploads/1/3/0/7/130738928/gowumusiwen_kunamin_divuvobezosewur.pdf
    • http://industryr.com/uploads/1/3/0/8/130814462/6eea13b36a4bf49.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_off00006cf7.bin
5d5edf0b1c8ce9b9076030228833c622d0f7ced142458ea99b0fdcfaed3173ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CF7 10716 bytes

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