Malicious PDF — malware analysis report

Static analysis result for SHA-256 006abbb4d0fce89b…

MALICIOUS

PDF

71.1 KB Created: 2021-02-27 17:01:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 6029203856d4ba3f106f38cc33a9c53c SHA-1: cf50d427ccb4c2ec6eb556b58eecfbc52e1044e3 SHA-256: 006abbb4d0fce89b3e7c241a268a980c668ffb8ea56feb80c44d4e14333cf513
244 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document functions as a link farm, embedding numerous URLs that point to potentially malicious or disposable hosting services. The heuristic firings indicate that the document is designed to redirect users to external sites, with one URL specifically linked to known malicious redirector infrastructure. The ClamAV detection and ML classifier further support its malicious nature, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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 https://dafemum.ru/strik?utm_term=1997+ford+f350+rust+repair+panels In PDF document text
    • https://cdn.sqhk.co/fusaduxuw/N6idd2s/88192243869.pdfIn PDF document text
    • https://fisikovomit.weebly.com/uploads/1/3/4/6/134652659/sewefi.pdfIn PDF document text
    • http://allostar.buzz/kumon_math_books_for_salekqy9c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464529/normal_5fcd700f8dcb0.pdfIn PDF document text
    • https://pebezudaxefen.weebly.com/uploads/1/3/4/3/134347708/8017458.pdfIn PDF document text
    • https://wobofosowipifir.weebly.com/uploads/1/3/0/7/130776138/2648103.pdfIn PDF document text
    • http://zaxevef.getenjoyment.net/total_quality_management_by_jayakumar.pdfIn PDF document text
    • https://cdn.sqhk.co/bojodunaluko/ie4yTOr/73627291235.pdfIn PDF document text
    • https://tusubolamofe.weebly.com/uploads/1/3/5/3/135322079/diwuwalejororas-jejuserej-dekepokud-tajumuduga.pdfIn PDF document text
    • https://cdn.sqhk.co/bobofibu/5WjahgT/kafapa.pdfIn PDF document text
    • https://javedaxefu.weebly.com/uploads/1/3/5/3/135314095/dosugeja-rezemitotijune.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415524/normal_6007ecfe3d3d8.pdfIn PDF document text
    • http://basiditdcf.space/bls_textbook926tc.pdfIn PDF document text
    • http://wejuzofibab.medianewsonline.com/warof.pdfIn PDF document text
    • http://mydenverneighborhoods.com/batman_the_killing_joke_comic_cbrhpitt.pdfIn PDF document text
    • http://zugasanuko.getenjoyment.net/how_to_reset_dsc_smoke_detector.pdfIn PDF document text
    • http://varistop.site/godaganikarefogukermw67.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rususekobijo.myartsonline.com/one_punch_man_exercise_before_and_after.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
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d9b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9B5 5660 bytes
SHA-256: 389f48bd40fe39bb91fac7c39f9985d7c23253798d3aacd7a91ec57f2824f8cb
font_01_sfnt_off0000ed11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED11 10084 bytes
SHA-256: 596235837d2e9266809e9a967f631c7d785f15c9ddfd1990c573c227793765eb

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