Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb0f0387a67ed4ff…

MALICIOUS

PDF

42.1 KB Created: 2020-09-20 06:45:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d12cf7dccd77b997dbcf2e1905d311b SHA-1: ea389e3014ee86175dce585116a165967aab06bc SHA-256: eb0f0387a67ed4ff37cf0cc01ff0dcd3d0167dd2d899ad14d67c9fba4f650861
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One critical heuristic indicates these links point to known malicious redirector infrastructure. The document body, though partially corrupted, contains text suggesting it is a guide, likely a lure to entice users to click on the malicious links. The primary intent appears to be directing users to potentially harmful external sites.

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.link/wix?keyword=origins+wind+staff+upgrade+guide
    • http://gadazav.joycedonahuelive.com/uploads/1/3/2/8/132814241/nupopuro.pdf
    • http://files.m4khastings.org/uploads/1/3/2/6/132695530/subola.pdf
    • http://fibozuseb.ceb-ulb.com/uploads/1/3/0/8/130874493/mizelalajafesudus.pdf
    • http://files.rivertonholidayfestival.com/uploads/1/3/2/6/132682171/6359420.pdf
    • https://cdn.shopify.com/s/files/1/0433/1044/8795/files/zeguwiguvesoki.pdf
    • https://cdn.shopify.com/s/files/1/0438/8156/2280/files/growatt_50kw_inverter_datasheet.pdf
    • https://cdn.shopify.com/s/files/1/0428/9763/7539/files/verajomesasapuz.pdf
    • https://cdn.shopify.com/s/files/1/0438/0046/1474/files/word_calendar_template_2019.pdf
    • https://cdn.shopify.com/s/files/1/0435/5643/8165/files/31470968363.pdf
    • https://cdn.shopify.com/s/files/1/0434/6013/3031/files/present_perfect_tense_exercises_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0428/5631/7091/files/93645988954.pdf
    • https://cdn.shopify.com/s/files/1/0432/9937/3214/files/coastal_fishing_guides_charleston_sc.pdf
    • https://cdn.shopify.com/s/files/1/0427/8665/2316/files/productos_notables_ejemplos_ejercici.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/77084518355.pdf
    • https://cdn.shopify.com/s/files/1/0435/1361/0392/files/meterpreter_android_commands_webcam.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_off00006713.bin
df04adbf641192d9a61d77af3633a5a465d11a6c59f0b3182c09777d380dd37a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6713 5296 bytes
font_01_sfnt_off0000793e.bin
c6815577adc3e6b692db70a8bb006637e15bf3f3b5e4171418618a07f41f41a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x793E 10076 bytes

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