Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d356397ced7ec83…

MALICIOUS

PDF

49.3 KB Created: 2020-08-16 22:28:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a442bbd2aa4b9529f3880545f6305e2 SHA-1: 05715f0cd29c8b62df97aad4e51dbc778d853680 SHA-256: 6d356397ced7ec83de4c6aacd089c44f39f6accc3ced6f084d8b47c13b396ea7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains a lure related to 'all wheel drive manual cars for sale' which is a common tactic for advance-fee scams. It embeds a link to a known malicious redirector, ttraff.ru, which is likely intended to lead the user to a malicious site or download a payload. The ML classifier also strongly indicated maliciousness.

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.ru/pify?keyword=all+wheel+drive+manual+cars+for+sale
    • http://files.amagier.com/uploads/1/3/1/6/131636589/3464899.pdf
    • http://gegitis.ericgrayjohnson.com/uploads/1/3/2/6/132682347/d717a5b5.pdf
    • http://files.katieanastas.com/uploads/1/3/1/3/131379830/velametaj.pdf
    • http://sujadut.freemantherapy.ca/uploads/1/3/1/3/131383544/jemew.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0435/5719/1843/files/beneficios_de_la_zanahoria.pdf
    • https://cdn.shopify.com/s/files/1/0434/6239/4008/files/funixukatapufej.pdf
    • https://cdn.shopify.com/s/files/1/0440/5841/1158/files/xadadodeziguwumezoz.pdf
    • https://cdn.shopify.com/s/files/1/0431/6561/4234/files/26565057032.pdf
    • https://cdn.shopify.com/s/files/1/0429/4646/1855/files/tonopepulaba.pdf
    • https://cdn.shopify.com/s/files/1/0427/5752/1574/files/27832969425.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/memew.pdf
    • https://cdn.shopify.com/s/files/1/0428/2515/4716/files/sojagipitiretatejobodu.pdf
    • https://cdn.shopify.com/s/files/1/0433/6533/5208/files/62935154647.pdf
    • https://cdn.shopify.com/s/files/1/0437/1054/6070/files/32357584546.pdf
    • https://cdn.shopify.com/s/files/1/0431/5525/9546/files/jebus.pdf
    • https://cdn.shopify.com/s/files/1/0440/8272/5029/files/20260446819.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000838f.bin
4291e43627c432ced57e8185bfebfb4a6381875b3342a84e57b213d53a4e7f66		 pdf-font-stream PDF embedded font (sfnt) at offset 0x838F 5400 bytes
font_01_sfnt_off000095d3.bin
1d3fb2c3f1b69d99c4e2a7fd3d3647b6f214ab50a3c9d8623de0313ce9d72a0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95D3 9920 bytes

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