Malicious PDF — malware analysis report

Static analysis result for SHA-256 69543a63c3915ce2…

MALICIOUS

PDF

68.7 KB Created: 2020-11-16 19:08:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b9a481b4890563e519125bcc913b6381 SHA-1: 9132dab25b641f810a9ea29ef55441df8156f482 SHA-256: 69543a63c3915ce29d2c1cccd7c09098fd6bd0f7c41014a8dc4570529b783f93
214 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with at least one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Outlander mackenzie family tree', suggesting a lure. The presence of multiple external PDF links, including one to an S3 bucket, indicates a link farm or distribution mechanism. ClamAV and ML classifiers also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffmen.ru/123?utm_term=outlander+mackenzie+family+tree
    • https://toreliga.weebly.com/uploads/1/3/4/3/134335880/7180291.pdf
    • https://diwapaxifok.weebly.com/uploads/1/3/4/4/134488462/deteximaz.pdf
    • https://cdn-cms.f-static.net/uploads/4374178/normal_5f9bb7f24fc6a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/susopuzupure/gutigoj.pdf
    • https://uploads.strikinglycdn.com/files/6438e203-66fa-42af-b7eb-66659a7f5ecf/lg_user_manual.pdf
    • https://s3.amazonaws.com/jeworurowam/retiwomotikedidokexoz.pdf
    • https://uploads.strikinglycdn.com/files/135d7afd-58bc-4036-a351-e958a83380a0/ligovazubekarexij.pdf
    • https://uploads.strikinglycdn.com/files/4b25d859-ca24-49e7-9794-f161ed18aaaa/j_cole_kod_download_zip.pdf
    • https://s3.amazonaws.com/retobifulipo/buvakosevutiwinu.pdf
    • https://s3.amazonaws.com/rekawexuretowo/gun_mayhem_2_333.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c270.bin
f7a5d3017939fa30e1b2b251a14e4b1c226089ff8cafce1051997db0835360d1
pdf-font-stream PDF embedded font (sfnt) at offset 0xC270 5004 bytes
font_01_sfnt_off0000d36b.bin
a18d8d0bbf76df3d27bcafc08aad04b9a2da672a991c20d1b3e4e23440b178e6
pdf-font-stream PDF embedded font (sfnt) at offset 0xD36B 11052 bytes
font_02_sfnt_off0000f84a.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0xF84A 4324 bytes