Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0d071803186ae58…

MALICIOUS

PDF

57.8 KB Created: 2020-07-25 08:29:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d5a3e63acfabebba3b442e559ea1d356 SHA-1: f1053a1a046e62c6698471c0448826b4b00a99f6 SHA-256: f0d071803186ae583eb423903f4a34866ed8152e932f4c788b88320e28e784de
152 Risk Score

Malware Insights

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

This PDF file contains multiple embedded links, with a critical heuristic firing indicating it redirects to known malicious infrastructure via 'ttraff.com'. The document body, though heavily obfuscated, appears to be related to academic templates, suggesting a lure. The presence of numerous external PDF links, many hosted on 'cdn.shopify.com', further supports the link farm heuristic. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=geophysical+research+letters+latex+template
    • http://files.detroitlakesucc.org/uploads/1/3/1/4/131438282/setoka.pdf
    • http://files.billiedepatiedesigns.com/uploads/1/3/0/9/130969776/fumaluzavuxigetinav.pdf
    • http://files.stringalongridgecrest.com/uploads/1/3/1/6/131637723/646cf302bb23.pdf
    • http://files.chenangobluesfest.org/uploads/1/3/1/3/131384777/memexedipeben.pdf
    • https://cdn.shopify.com/s/files/1/0436/4202/8190/files/60462921155.pdf
    • https://cdn.shopify.com/s/files/1/0433/5638/9528/files/28661000490.pdf
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/puneberun.pdf
    • https://cdn.shopify.com/s/files/1/0431/1089/1680/files/2655703823.pdf
    • https://cdn.shopify.com/s/files/1/0433/2231/0811/files/67552875812.pdf
    • https://cdn.shopify.com/s/files/1/0433/4950/8246/files/97957258002.pdf
    • https://cdn.shopify.com/s/files/1/0432/2859/4336/files/winutazuxajim.pdf
    • https://cdn.shopify.com/s/files/1/0430/0944/1953/files/61357183321.pdf
    • https://cdn.shopify.com/s/files/1/0432/9160/7190/files/59763898251.pdf
    • https://cdn.shopify.com/s/files/1/0431/6335/3250/files/mofegugufopolulilonev.pdf
    • https://cdn.shopify.com/s/files/1/0429/7749/3146/files/gijerasokuwexuwusinubogaz.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/
    • https://cdn.shopify.com/s/files/1/0431

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000872b.bin
f5ee4ebcaddb4683e3539ae1ba37542ac45804c2f9e3e7a516fe3c05f248ef48		 pdf-font-stream PDF embedded font (sfnt) at offset 0x872B 5056 bytes
font_01_sfnt_off00009863.bin
41e98b51f8c4614c0704b53e8e5f7336e19b5845899c718f1368f347d0b06295		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9863 14216 bytes
font_02_sfnt_off0000c4b4.bin
6bc3c0a07cf69e32b7b44c2bd5cb36414567d6079e008e5b6982b4757f28630b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC4B4 16084 bytes

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