Malicious PDF — malware analysis report

Static analysis result for SHA-256 1286f3ca3a0d1601…

MALICIOUS

PDF

47.6 KB Created: 2020-08-08 03:00:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 72effea46906d0e1f06c07dd2a364ded SHA-1: 8033a50f64a26fe0227e4695eef4d4e7c679b1bd SHA-256: 1286f3ca3a0d16011ece71cc4789b441fba0e9093abf249e860acfdbc7c3c3d9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector pointing to 'ttraff.cc'. The document body, though corrupted, contains text related to 'Axis bank corporate net banking', suggesting a lure for financial credential theft. The presence of numerous links, many pointing to Shopify domains hosting other PDFs, indicates a link farm designed to obscure the malicious redirector.

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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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=axis+bank+corporate+net+banking+pdf
    • http://files.tilleyrent.com/uploads/1/3/0/7/130775186/kuzodukoneloluf_tuwujiwotukago.pdf
    • http://files.distributivesolar.com/uploads/1/3/0/9/130969545/nogajapiropagof_wisuso.pdf
    • http://files.stagerightclub.com/uploads/1/3/0/7/130738614/9109900.pdf
    • http://files.premiertags.uk/uploads/1/3/2/6/132696030/1770483.pdf
    • http://bimam.helenaakashi.com/uploads/1/3/2/6/132681946/tavilalotoliw.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/fabunaxujejipagenowiwed.pdf
    • https://cdn.shopify.com/s/files/1/0431/9140/2660/files/51741226440.pdf
    • https://cdn.shopify.com/s/files/1/0431/3320/6690/files/kg_to_lbs.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/riwemabosemuridaredexe.pdf
    • https://cdn.shopify.com/s/files/1/0429/8833/9361/files/gedewupi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4421/6727/files/legend_of_zelda_ocarina_of_time_walkthrough.pdf
    • https://cdn.shopify.com/s/files/1/0428/8220/3801/files/95924677501.pdf
    • https://cdn.shopify.com/s/files/1/0434/0911/3253/files/69517029071.pdf
    • https://cdn.shopify.com/s/files/1/0432/7096/3350/files/lenineviledos.pdf
    • https://cdn.shopify.com/s/files/1/0435/5463/5937/files/96677386884.pdf
    • https://cdn.shopify.com/s/files/1/0431/3884/2779/files/valexinakinezigivedesukuz.pdf
    • https://cdn.shopify.com/s/files/1/0439/1282/2939/files/51531385239.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_off00006d0a.bin
71677804f46df7ae1b02248127e035a0ffa9f6dbbcc8f064dc30b65f8b3bfe46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D0A 5340 bytes
font_01_sfnt_off00007f34.bin
4bc639aa85c79581fc2268ba05f1ac2c9811b5a46b90dd923530cc4c5459e5b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F34 10376 bytes
font_02_sfnt_off0000a2a6.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA2A6 4324 bytes

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