Malicious PDF — malware analysis report

Static analysis result for SHA-256 b740a7957fd04ac5…

MALICIOUS

PDF

35.8 KB Created: 2020-08-18 15:49:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47b39b9f28f6f32228290e5fde316b3a SHA-1: 3c4e9ac3a2ea5e80c15638da65fcb07aab777f0d SHA-256: b740a7957fd04ac5781812b18a0a7b09816f976efa0d2b0802032060c12976ce
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with a critical heuristic firing indicating a link farm designed to redirect users. One of the primary redirector URLs is 'https://ttraff.com/pify?keyword=ammann+ap240+manual'. While the document body contains what appears to be metadata and some garbled text, the presence of numerous links strongly suggests a malicious intent, likely for phishing or malware delivery. No scripts were extracted, limiting the analysis of direct execution capabilities.

Heuristics 3

  • 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.
  • 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=ammann+ap240+manual
    • http://files.arcticaudio.com/uploads/1/3/1/8/131871477/pizokilafeza.pdf
    • http://files.bellacalore.com/uploads/1/3/0/8/130814279/mumubimogamu-fupedevumebat-ropetiwajo.pdf
    • http://files.bethelhouseinc.org/uploads/1/3/2/7/132712080/teputom.pdf
    • http://raxumukig.thesassyladycollectionboutiqueonline.com/uploads/1/3/0/7/130775440/tuvili-lezubufaroko-goveroju.pdf
    • http://files.ritafeutl.com/uploads/1/3/1/8/131857723/luviderake-lopapigurupu-kujugi.pdf
    • https://cdn.shopify.com/s/files/1/0432/8669/1998/files/dotugomepi.pdf
    • https://cdn.shopify.com/s/files/1/0438/3119/7856/files/zewesolalunasipavaledez.pdf
    • https://cdn.shopify.com/s/files/1/0431/8271/9127/files/pimuranun.pdf
    • https://cdn.shopify.com/s/files/1/0430/0252/7895/files/fadifubifumizimu.pdf
    • https://cdn.shopify.com/s/files/1/0432/2151/6445/files/58917460269.pdf
    • https://cdn.shopify.com/s/files/1/0438/9833/9496/files/kiwamudozipojoda.pdf
    • https://cdn.shopify.com/s/files/1/0430/0485/4426/files/xisijurobidizerenepi.pdf
    • https://cdn.shopify.com/s/files/1/0431/0971/2023/files/uml_class_diagram_for_library_management_system.pdf
    • https://cdn.shopify.com/s/files/1/0432/4645/2899/files/16625416386.pdf
    • https://cdn.shopify.com/s/files/1/0438/2585/6672/files/championship_manager_java_game.pdf
    • https://cdn.shopify.com/s/files/1/0440/5110/3894/files/kontakt_5._6._5_r2r.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f7f.bin
9e14066632b4829845eb734d08208f65a01a42ff462eb9980a10bf632b297af4
pdf-font-stream PDF embedded font (sfnt) at offset 0x4F7F 5040 bytes
font_01_sfnt_off00006091.bin
72362d805e45247c56c143523b60d8c92f1219b5e6c8b0eaa894580f537a9fd9
pdf-font-stream PDF embedded font (sfnt) at offset 0x6091 9940 bytes