Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb54e085c299296d…

MALICIOUS

PDF

48.3 KB Created: 2020-05-01 14:45:00 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 7bbd99ddaa5cf4d8dd6597858e2d5014 SHA-1: 5501852f67d3d0bf2c17c45104ee04550597a6eb SHA-256: fb54e085c299296dd080806dbe94538607d2a3ac68d43ae2e41828c911d0392e
156 Risk Score

Malware Insights

MITRE ATT&CK
T1555 Credentials from Password Stores T1059 Command and Scripting Interpreter

The PDF document contains a large number of external links, many of which point to other PDF files, suggesting a link farm or SEO poisoning tactic. The critical heuristic 'SE_SECRET_RECOVERY_LURE' indicates the document explicitly requests sensitive information such as recovery phrases or private keys. While no scripts were extracted, the embedded URLs and the nature of the requested information point towards a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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://marilusdesigns.com/uploads/1/3/1/6/131636758/131636758.html#checkpoint+firewall+admin+guide+r80.+20 PDF link annotation
    • http://andrearachelquiroz.com/uploads/1/3/1/3/131379743/pekapewipupewalur.pdfIn PDF document text
    • http://skywalkcontractinginc.com/uploads/1/3/1/1/131164023/4a61effbf1d7.pdfIn PDF document text
    • http://a-geda.com/uploads/1/3/0/8/130874077/mamajijigo-sotatomexe-kozizikagarewa.pdfIn PDF document text
    • http://globalchopchop.com/uploads/1/3/1/4/131438844/tepunibowazofibam.pdfIn PDF document text
    • http://emilieroseportfolio.com/uploads/1/3/0/6/130604505/pefovuv_kikifijofokuxi_kubetilu_felededon.pdfIn PDF document text
    • http://covingtonelectric-ms.com/uploads/1/3/1/0/131070523/pikefexubinikis.pdfIn PDF document text
    • http://ryan4iowa.com/uploads/1/3/1/6/131606835/d8ca92e.pdfIn PDF document text
    • http://meganrobleshair.com/uploads/1/3/0/9/130968931/bixot-tajasiwisevil-tajubuvujebe.pdfIn PDF document text
    • http://sterilogix.com/uploads/1/3/0/6/130639681/2214259.pdfIn PDF document text
    • http://mappertom.com/uploads/1/3/0/9/130969747/nekunubugakafu-napaxu-koduvuvofav-rewodimuwaf.pdfIn PDF document text
    • http://mspistone.com/uploads/1/3/0/6/130639746/01ab567f.pdfIn PDF document text
    • http://ahsa-aeha.ca/uploads/1/3/0/6/130604689/wikeju.pdfIn PDF document text
    • http://kobezakartworks.com/uploads/1/3/0/4/130435670/92b32d.pdfIn PDF document text
    • http://blessedtexandesign.com/uploads/1/3/0/5/130542710/zatekijuvev-nitulifezemogep-zinesi-vupopo.pdfIn PDF document text
    • http://raldas.com/uploads/1/3/1/4/131407901/puvikagadej.pdfIn PDF document text
    • http://civilwarlady.org/uploads/1/3/0/6/130603763/2b204.pdfIn PDF document text
    • http://serprollc.com/uploads/1/3/0/7/130775104/gixuma.pdfIn PDF document text
    • http://cemscompany.com/uploads/1/3/0/4/130488699/toxenoku-dukizuleno-jugogopafip-xofukafujozoji.pdfIn PDF document text
    • http://firstpresnewton.com/uploads/1/3/0/5/130539652/wexotinovadaxez.pdfIn PDF document text
    • http://postalsolutions-hohenwald.com/uploads/1/3/1/3/131379518/5194338.pdfIn PDF document text
    • http://rohlconsulting.com/uploads/1/3/0/6/130622101/gopubisaben-lalojige-gubiwa.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

Related samples 4

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_off0000926e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x926E 8776 bytes
SHA-256: 6d5647b03aadbbf17f6801d3621e07de8feefe396b1a735fb23adfdca15dbf04

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