Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b07150b4641be87…

MALICIOUS

PDF

87.7 KB Created: 2020-09-17 14:23:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 670ffa3ee78d482b5e3811929d71faf2 SHA-1: 230d3fcd78380320f839ce627f490ea10b276747 SHA-256: 7b07150b4641be87cc8e197670cf476b2e9c7bb6974b6f7bc9892da9dd28517c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1204.002 Malicious Link

The PDF contains a link farm and a critical heuristic firing for a malicious redirector, specifically pointing to 'https://ttraff.link/wix?keyword=where+is+michael+jackson+star+on+hollywood+boulevard'. This URL, combined with the 'SE_ADVANCE_FEE_SCAM_LURE' heuristic, strongly suggests an advance-fee scam. The document body, though partially corrupted, contains the same search query and the malicious URL, indicating an attempt to trick the user into clicking the link.

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.link/wix?keyword=where+is+michael+jackson+star+on+hollywood+boulevard
    • http://files.tacmit.com/uploads/1/3/1/1/131164355/4618617.pdf
    • http://files.melissahamiltonphotography.com/uploads/1/3/1/4/131406800/5260777.pdf
    • http://files.krasnoevents.com/uploads/1/3/0/7/130740252/9037144.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0428/6038/0327/files/domakoxubigika.pdf
    • https://cdn.shopify.com/s/files/1/0431/2976/6045/files/website_cookie_policy_template.pdf
    • https://cdn.shopify.com/s/files/1/0434/3952/1958/files/30870476642.pdf
    • https://cdn.shopify.com/s/files/1/0433/4672/2965/files/pegegasenesetuvet.pdf
    • https://cdn.shopify.com/s/files/1/0429/0406/0071/files/all_paper_size_chart.pdf
    • https://cdn.shopify.com/s/files/1/0440/4841/6933/files/nulomesapafuta.pdf
    • https://cdn.shopify.com/s/files/1/0433/1087/4777/files/birthday_wishes_song_in_tamil.pdf
    • https://cdn.shopify.com/s/files/1/0431/5647/1959/files/cash_app_hacked_june_2020.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_off00010b19.bin
1e3d58601e59be1ec4a8b3aa3e9248b7a575aac8a3d72bf541e19de074d764b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10B19 5608 bytes
font_01_sfnt_off00011e1e.bin
3e5668abc1c49355deaa9be937dbb4ce70659c70735b1b2878e61c5cedb0fb9e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11E1E 10940 bytes
font_02_sfnt_off0001434d.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1434D 4324 bytes

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