Malicious PDF — malware analysis report

Static analysis result for SHA-256 1662fbf76824a84e…

MALICIOUS

PDF

46.2 KB Created: 2020-08-03 11:41:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d9d0414604a2dcccee3a5a08c827e68 SHA-1: 82aeb4a9aa0b47cf54491c7c56e0fb4fdb40d2cd SHA-256: 1662fbf76824a84e7e4c990d445701ef812741601183573518cc0bc239eb999a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.007 JavaScript

The PDF document is identified as malicious due to its use of a known malicious redirector and a link farm, which are common tactics in advance-fee scams. The document body, though obfuscated, contains text suggesting a lure related to Domino's Pizza prices, aligning with the 'Advance-fee Scam Lure' heuristic. The embedded links, including the primary redirector `https://ttraff.cc/pify?keyword=domino+s+pizza+menu+card+with+price+pdf`, are designed to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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.
  • 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.cc/pify?keyword=domino+s+pizza+menu+card+with+price+pdf
    • http://files.nehalkapadia.ca/uploads/1/3/1/3/131379049/winunanaxomisokudaj.pdf
    • http://files.quasilocum.com/uploads/1/3/1/3/131380733/dazepip-tefifipipewesex.pdf
    • http://files.purposelybeloved.com/uploads/1/3/0/7/130776147/9518891.pdf
    • http://files.addiedraper.com/uploads/1/3/1/0/131070450/528ddbe.pdf
    • http://files.tribalexperiences.com/uploads/1/3/0/9/130968921/1736aca674.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0431/0191/3244/files/fatizuleg.pdf
    • https://cdn.shopify.com/s/files/1/0431/7826/2689/files/domaparedag.pdf
    • https://cdn.shopify.com/s/files/1/0432/6473/7448/files/20721724876.pdf
    • https://cdn.shopify.com/s/files/1/0436/9845/4682/files/72652406741.pdf
    • https://cdn.shopify.com/s/files/1/0431/5096/6950/files/96376826927.pdf
    • https://cdn.shopify.com/s/files/1/0431/6279/6186/files/91819798311.pdf
    • https://cdn.shopify.com/s/files/1/0427/6623/7852/files/modimalekod.pdf
    • https://cdn.shopify.com/s/files/1/0432/0201/9487/files/capoeira_fighter_3_ultimate_world_tournament.pdf
    • https://cdn.shopify.com/s/files/1/0434/2887/2359/files/20364552799.pdf
    • https://cdn.shopify.com/s/files/1/0430/2045/1997/files/vipazomiwawis.pdf
    • https://cdn.shopify.com/s/files/1/0435/6676/0095/files/5984475752.pdf
    • https://cdn.shopify.com/s/files/1/0427/7708/4070/files/zajagokaxusalenujozeloje.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_off0000660a.bin
412e7fe41f69babc06878271a5bfd4a9b4caa35af9c0b799009d01465ee163f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x660A 5388 bytes
font_01_sfnt_off00007844.bin
7b9dd777846b1ea3cfd3ce5d8161ff7e675641de61403287e34944dfc74fe1d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7844 10796 bytes
font_02_sfnt_off00009d33.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D33 4324 bytes

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