Malicious PDF — malware analysis report

Static analysis result for SHA-256 63121431063fd48d…

MALICIOUS

PDF

538.2 KB Created: 2020-08-29 23:32:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 02c1c2332ff4a0c1a8d4b618ab6acf7e SHA-1: 98ebaf0e527ccf505f7b784ea9192c44bb52a4fe SHA-256: 63121431063fd48d64310de0a9631450a4bccfe64a3b658c89700e629dd2ff11
142 Risk Score

Malware Insights

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

The PDF contains lures indicating an advance-fee scam and urgency, common in phishing attempts. It embeds a URL that is flagged as a malicious redirector, likely leading to further malicious content or malware. No scripts were extracted, but the presence of a malicious URL and the document's deceptive content strongly suggest a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9669

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://ttraff.ru/wix?keyword=vengeance+in+death+free+ebook
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0430/7353/6161/files/funuteb.pdf
    • https://cdn.shopify.com/s/files/1/0437/7162/5634/files/syllabication_worksheets_for_grade_3.pdf
    • https://cdn.shopify.com/s/files/1/0432/1083/4077/files/ca_course_details.pdf
    • https://cdn.shopify.com/s/files/1/0447/9080/8727/files/60702898962.pdf
    • https://cdn.shopify.com/s/files/1/0432/9635/8565/files/kijovawakigulo.pdf
    • https://static.usrfiles.com/ugd/b8c837_d9d831bda95e4f87ae51f78058eb8043.pdf
    • https://static.usrfiles.com/ugd/32acb1_a0eaf5e1728d4229b4cc5f0e62125221.pdf
    • https://static.usrfiles.com/ugd/b8c837_9616aa18dc914bb6bb01111b6d486959.pdf
    • https://static.usrfiles.com/ugd/b8c837_9d68b757b6564f6597666d79b09c24aa.pdf
    • https://cdn.shopify.com/s/files/1/0432/2073/0020/files/mogulinogereloninazajepu.pdf
    • https://cdn.shopify.com/s/files/1/0433/1382/3909/files/98981953847.pdf
    • https://cdn.shopify.com/s/files/1/0434/9237/6741/files/compass_learning_english_4_answers.pdf
    • https://cdn.shopify.com/s/files/1/0428/3544/3871/files/bexurexominib.pdf
    • https://cdn.shopify.com/s/files/1/0435/7767/1843/files/49720536991.pdf
    • https://static.usrfiles.com/ugd/b8c837_b02d5dd660a24be2bac38fd87c4b71f8.pdf
    • https://static.usrfiles.com/ugd/599026_c989e2a98fb1456bb720a5d598b35c04.pdf
    • https://static.usrfiles.com/ugd/b8c837_eab64c9ed9e54033973e97e9cf7650f1.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_off0008155e.bin
f276aac62ccf7224c1ae7e8c222c6e8fac307b799f457ee69fb46cc1b9c68cb3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8155E 5028 bytes
font_01_sfnt_off0008266e.bin
42f61aae8b78ffcccba428ce258b91423cf77f848d78508524baed36c410150b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8266E 10320 bytes
font_02_sfnt_off0008498f.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8498F 4324 bytes

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