Malicious PDF — malware analysis report

Static analysis result for SHA-256 2df2660f07688a09…

MALICIOUS

PDF

51.3 KB Created: 2020-08-28 10:42:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d827f907dcc4ad61c3e70d5b52c900b5 SHA-1: 4b3cdb7d7c0ba35629b000085a660e7db6281cdf SHA-256: 2df2660f07688a09abfca788a14626ecdaabb2a35d3e7da8ee522f14cc1bf382
152 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains the same URL and a reference to a 'photoshop word tutorial', indicating a social engineering lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, likely to improve search engine ranking for malicious content.

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.cc/pify?keyword=photoshop+word+tutorial
    • http://gefib.caribbeanmemoryproject.com/uploads/1/3/1/4/131407406/xunenegamizoge.pdf
    • http://futenamom.mogulpark.net/uploads/1/3/2/7/132712237/tiredurilige_zuzudeta_sekux_fitapoliso.pdf
    • http://files.littleladyo.com/uploads/1/3/0/9/130969004/furopigolijur.pdf
    • http://files.searlneuropsychology.com/uploads/1/3/0/9/130969465/kafodad-sugaz-widebabedejibe.pdf
    • http://falade.eibenteaching.com/uploads/1/3/2/6/132682974/dujakubatir-rawemeso-sawula.pdf
    • https://cdn.shopify.com/s/files/1/0434/1946/7927/files/16741501429.pdf
    • https://cdn.shopify.com/s/files/1/0431/7567/4014/files/musetaz.pdf
    • https://cdn.shopify.com/s/files/1/0436/7328/8869/files/97693080120.pdf
    • https://cdn.shopify.com/s/files/1/0465/5418/5878/files/zionism_new_world_order.pdf
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/66065852799.pdf
    • https://cdn.shopify.com/s/files/1/0440/0336/0926/files/believer_partitura_violino.pdf
    • https://cdn.shopify.com/s/files/1/0434/4872/9767/files/42543789487.pdf
    • https://cdn.shopify.com/s/files/1/0428/9101/8396/files/tobepejetixawegitabijus.pdf
    • https://cdn.shopify.com/s/files/1/0436/5352/9753/files/25238406839.pdf
    • https://cdn.shopify.com/s/files/1/0434/5469/3529/files/python_convert_set_to_list.pdf
    • https://cdn.shopify.com/s/files/1/0428/3973/6487/files/aplikasi_internet_speed_booster_3g_4g.pdf
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/samsung_galaxy_s10_manual.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/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007eda.bin
4c1a0e365c8b5595a3faea801bfd3af756d0def43a94de17fe1d6549617d9c0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EDA 4796 bytes
font_01_sfnt_off00008f3e.bin
af3f138ae417ef4f18e20390ebf9fa25cd04d8efabc2a38b101933e4ac321f1b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F3E 10244 bytes
font_02_sfnt_off0000b1f7.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB1F7 4324 bytes

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