Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaa02b7160c9133a…

MALICIOUS

PDF

72.7 KB Created: 2020-11-11 23:39:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: f9c56127c53df9bbfa57b4fb9e8a5750 SHA-1: 2a6eb93ff1a11f0bb288a2140ab65a496a65f85a SHA-256: eaa02b7160c9133a446fe2703ee0fd08ce8936abc1e7cf7cab5c4a9adb4504a7
176 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a large number of external links, suggesting a link farm or SEO manipulation tactic. One of the external URLs, 'https://traffnew.ru/123?utm_term=rising+force+basketball', is flagged as unknown reputation and is likely the primary malicious destination. The ClamAV detection and ML classifier also indicate maliciousness, pointing towards a phishing or trojanized PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://traffnew.ru/123?utm_term=rising+force+basketball PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4381291/normal_5f91f53d66106.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407302/normal_5f92b31649c24.pdfIn PDF document text
    • https://valezofijamope.weebly.com/uploads/1/3/4/4/134445284/1663345.pdfIn PDF document text
    • https://jitoxegewizo.weebly.com/uploads/1/3/4/4/134460998/2166016.pdfIn PDF document text
    • https://tekadepaja.weebly.com/uploads/1/3/4/3/134341299/lamikomatazaw_gefenomewil_vadimale_putamosavizav.pdfIn PDF document text
    • https://jimazakogise.weebly.com/uploads/1/3/4/6/134612968/9656356.pdfIn PDF document text
    • https://gonoloxezejuje.weebly.com/uploads/1/3/1/4/131410007/2aeaed4.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/xanebavifamopez/henry_cowell_aeolian_harp.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/23527879354.pdfIn PDF document text
    • https://s3.amazonaws.com/dazemi/kakunotaxorimibelikelesu.pdfIn PDF document text
    • https://s3.amazonaws.com/pewibim/jennie_o_turkey_breast_cooking_directions.pdfIn PDF document text
    • https://s3.amazonaws.com/buganabowumujef/48539875996.pdfIn PDF document text
    • https://s3.amazonaws.com/jarawaxanivu/navedtra_14145_answer_key.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_off0000d081.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD081 5048 bytes
SHA-256: 37d9132df470930d5c4d0c44a4afcdc61bff5a83f12db6b91e1b84ff2e36e2af
font_01_sfnt_off0000e1ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1BA 11380 bytes
SHA-256: a29f4d3b679df6f1ce58d28e27bd323dbed3ce1316aa247a2f625c74c4be3b2d
font_02_sfnt_off0001087f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1087F 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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