Malicious PDF — malware analysis report

Static analysis result for SHA-256 018652ae10170e70…

MALICIOUS

PDF

56.2 KB Created: 2020-08-07 22:10:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0a7e3608f50273db38e8c08a0ea9df20 SHA-1: 7f117ccecfcda4da0893854a3a7774e1bb46cc18 SHA-256: 018652ae10170e7048cbcad75e4583d88ea584092b8e05b1b75b3f4f7333a50b
154 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm designed to redirect users to malicious sites, as indicated by the PDF_SEO_LINK_FARM and PDF_MALICIOUS_REDIRECTOR_LINK heuristics. The primary malicious URL identified is https://ttraff.com/pify?keyword=narasimham+committee+2+report+pdf, which is likely used to distribute further malware. The ML classifier also strongly indicated maliciousness.

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=narasimham+committee+2+report+pdf
    • http://files.twofriendsmetalsculpture.com/uploads/1/3/1/8/131871902/a5f3d3457.pdf
    • http://files.davidallisondewitt.com/uploads/1/3/2/7/132740805/jegalotudag.pdf
    • http://files.jadavjilab.com/uploads/1/3/1/0/131070940/8d2f3f9e4a5.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0433/8070/3382/files/gaboxezexipen.pdf
    • https://cdn.shopify.com/s/files/1/0437/7726/1729/files/23108429532.pdf
    • https://cdn.shopify.com/s/files/1/0429/8024/5657/files/beep_codes_of_computer.pdf
    • https://cdn.shopify.com/s/files/1/0432/0477/1999/files/anker_soundbuds_surge_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/6946/4991/files/12_team_double_elimination_bracket.pdf
    • https://cdn.shopify.com/s/files/1/0435/8583/1080/files/22752068712.pdf
    • https://cdn.shopify.com/s/files/1/0430/6799/8362/files/dimisinosu.pdf
    • https://cdn.shopify.com/s/files/1/0430/2074/6906/files/4383483247.pdf
    • https://cdn.shopify.com/s/files/1/0431/5817/5906/files/english_grammar_tenses_with_examples.pdf
    • https://cdn.shopify.com/s/files/1/0431/6345/1560/files/tasuguwozoloramibedojo.pdf
    • https://cdn.shopify.com/s/files/1/0428/6945/7055/files/85480907784.pdf
    • https://cdn.shopify.com/s/files/1/0434/6370/4729/files/google_sheets_find_and_replace.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_off0000907d.bin
4ba08f71e7813b323216459a47cad10753a251b5aac5672aad7cf069c2143074		 pdf-font-stream PDF embedded font (sfnt) at offset 0x907D 5144 bytes
font_01_sfnt_off0000a1fe.bin
db2f34f2a61b5b92a2953c5fe58a06b120c0e5936c86b990a086f1de19f6700a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA1FE 10456 bytes
font_02_sfnt_off0000c5c5.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC5C5 4324 bytes

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