Malicious PDF — malware analysis report

Static analysis result for SHA-256 1694921ad934bbe0…

MALICIOUS

PDF

46.7 KB Created: 2020-08-08 13:47:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aa3f689fbb9bccb07ffb2966dae68b01 SHA-1: db475b1c05bc9c9814131468d5837e52c8675229 SHA-256: 1694921ad934bbe07b5eadcc91c86d1a1f8b6ebf8da71bec029ea8942e22c478
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm and a primary malicious redirector URL, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious. The primary malicious URL is https://ttraff.com/pify?keyword=jeppesen+airframe+textbook+pdf+free, which likely leads to further malicious content or malware.

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=jeppesen+airframe+textbook+pdf+free
    • http://nunabitit.doulasofboulder.com/uploads/1/3/2/7/132710712/dusuzuxevefomubi.pdf
    • http://files.anaturalselectiongsd.com/uploads/1/3/0/9/130968920/435a90d7.pdf
    • http://files.kychildcare.com/uploads/1/3/2/7/132712154/vozopoku.pdf
    • http://pogateno.villaparguerahotel.com/uploads/1/3/0/9/130969061/japopekowa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0440/4881/0149/files/somiturezuzukozigafib.pdf
    • https://cdn.shopify.com/s/files/1/0432/8266/1526/files/2056798034.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejupabofutub.pdf
    • https://cdn.shopify.com/s/files/1/0432/6726/0582/files/32853164219.pdf
    • https://cdn.shopify.com/s/files/1/0437/2240/8087/files/belajar_excel_macro.pdf
    • https://cdn.shopify.com/s/files/1/0450/6445/4294/files/notice_of_annual_general_meeting.pdf
    • https://cdn.shopify.com/s/files/1/0438/9175/3115/files/wovenoxoba.pdf
    • https://cdn.shopify.com/s/files/1/0439/2170/3067/files/59370274589.pdf
    • https://cdn.shopify.com/s/files/1/0431/5214/6587/files/pizixefulegaval.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58097506778.pdf
    • https://cdn.shopify.com/s/files/1/0432/8049/8841/files/xitovomemikinakuz.pdf
    • https://cdn.shopify.com/s/files/1/0438/5131/7408/files/4745551662.pdf
    • https://cdn.shopify.com/s/files/1/0431/1266/1152/files/les_collectivits_territoriales_au_sngal.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000633e.bin
bac109e8be0decb2e130b3a23ea27e360626224be7837c462d8c75a72a85aa55		 pdf-font-stream PDF embedded font (sfnt) at offset 0x633E 5416 bytes
font_01_sfnt_off0000758f.bin
464ed2505b582acf8a10e4eb1df41383254d41d2f8c687a0e82c7a0770e943cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x758F 10240 bytes
font_02_sfnt_off000098df.bin
d7dbcefd5a9d087f9dbd48d87e5b82950a900fa0f666d4a1f78598b818f3f613		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98DF 16060 bytes

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