Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b01e012af24bbea…

MALICIOUS

PDF

462.5 KB Created: 2020-08-02 03:58:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 94fd3f95d4732786ae043b7a4e27968e SHA-1: 76a583e330344fe3b7ed3e14a91d20fbd4181878 SHA-256: 0b01e012af24bbea09f40078e70e8e7112ec81c16d6c6e5505ceb434ae31bc40
142 Risk Score

Malware Insights

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

The PDF contains heuristics indicating it is a malicious redirector and employs an advance-fee scam lure, threatening account termination. The embedded URL https://ttraff.com/pify?keyword=poe+best+maps+to+farm is flagged as malicious. While no scripts were explicitly extracted, the PDF structure and malicious URL suggest an attempt to redirect the user to a phishing or scam page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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.com/pify?keyword=poe+best+maps+to+farm
    • http://files.freerangegramma.com/uploads/1/3/1/4/131454012/b92f881cc5238bf.pdf
    • http://files.autumnskinner.com/uploads/1/3/1/4/131453284/9274844.pdf
    • http://files.kevinogrady.com/uploads/1/3/0/7/130740112/3307225.pdf
    • http://files.dynamicgraffix.com/uploads/1/3/0/9/130969080/wonazizoximuw.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0429/3958/0575/files/pumuzefebe.pdf
    • https://cdn.shopify.com/s/files/1/0434/5485/7369/files/60879910707.pdf
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/82179602088.pdf
    • https://cdn.shopify.com/s/files/1/0433/6363/1272/files/24816000154.pdf
    • https://cdn.shopify.com/s/files/1/0427/6640/1692/files/deguko.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xekosipavejidowusa.pdf
    • https://cdn.shopify.com/s/files/1/0431/5080/3099/files/kirisizavefi.pdf
    • https://cdn.shopify.com/s/files/1/0427/7898/4614/files/jutalelejudivikotefe.pdf
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/rojazofupeju.pdf
    • https://cdn.shopify.com/s/files/1/0432/7076/6750/files/92588120008.pdf
    • https://cdn.shopify.com/s/files/1/0432/2259/7800/files/download_animorphs.pdf
    • https://cdn.shopify.com/s/files/1/0430/1769/9477/files/fosaxunulilojulatezizukoz.pdf
    • https://cdn.shopify.com/s/files/1/0433/6500/7509/files/tezipikaxitibapovewupap.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006c1a1.bin
fe5cd1f7814d68f0f18d2037a7e89618c3cbdea774b3d8ec8c5d38a1d8e59174		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C1A1 5156 bytes
font_01_sfnt_off0006d30c.bin
74be61ab90e94516698b03545b68dabe6cec4c2a673304f6bbc46e9d081d304c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D30C 22800 bytes
font_02_sfnt_off0007148d.bin
541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7148D 16204 bytes

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