Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c3cb9012c40ea6c…

MALICIOUS

PDF

69.0 KB Created: 2021-01-10 01:19:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: fe4afef12ff9e814133431b9f6cdf96f SHA-1: 9f8ce1b2b67af329e416ff3b6ec915e9cfefb04a SHA-256: 2c3cb9012c40ea6cdcae66cfee3aa2a50d5ac264741243b7ca6bd6dfce6b3e52
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous embedded URLs, with a primary suspicious URL pointing to a domain associated with downloading an 'amazon prime videos apk'. The document body, though heavily obfuscated, suggests a lure related to Amazon Prime Video. The presence of external URIs and link farms further supports a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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 https://trafficel.ru/aws?utm_term=amazon+prime+videos+apk PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4403413/normal_5fd090cc393cc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417206/normal_5fa308ddafe3f.pdfIn PDF document text
    • https://wekubuzebebam.weebly.com/uploads/1/3/0/7/130739705/xelelovolaxatusimuw.pdfIn PDF document text
    • https://pekeweluxema.weebly.com/uploads/1/3/5/3/135304067/6021830.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467298/normal_5ff7b48242181.pdfIn PDF document text
    • https://site-1174852.mozfiles.com/files/1174852/v_moda_crossfade_wireless_2_codex.pdfIn PDF document text
    • https://site-1177693.mozfiles.com/files/1177693/politics_and_prose_events.pdfIn PDF document text
    • https://pulepuvoko.weebly.com/uploads/1/3/4/2/134266128/2f114.pdfIn PDF document text
    • https://bijifejutumaxob.weebly.com/uploads/1/3/1/3/131381781/sodajixozegizowupu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368735/normal_5fb8d74fb9318.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/xelimewat/ardaas_karaan_all_song_mr_jatt.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c8af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8AF 4944 bytes
SHA-256: 6aff3b75dca32d08519e997e9291f5599ace188027b241602f8afc2c25f79a1f
font_01_sfnt_off0000d95f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD95F 9392 bytes
SHA-256: 10cecb8d1d1ddf6b279286c1e8de49c5c0ef71c5158f22122eb5ebeb1b7a54d5
font_02_sfnt_off0000f98f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF98F 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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