Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad844ed8598d44f9…

MALICIOUS

PDF

39.1 KB Created: 2020-08-12 23:26:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 41bcd508d3d0e49f8823d19b7800d2c2 SHA-1: 0eed238196cf8cd209bb30805b60e92b4f1e7c74 SHA-256: ad844ed8598d44f9b2a073591b502c244f316a3e9e4a5acd1170844b4b7faa84
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service. The primary malicious URL, https://ttraff.ru/pify?keyword=ikea+catalogue+2020+pdf+egypt, is identified as a malicious redirector. The document body contains garbled text but includes the keywords 'Ikea catalogue 2020 pdf egypt', suggesting a lure to disguise the malicious links. The presence of a link farm indicates an attempt to distribute malicious content broadly.

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.ru/pify?keyword=ikea+catalogue+2020+pdf+egypt
    • http://files.busybfarm.com/uploads/1/3/1/4/131411762/fizabojuniwuzununegi.pdf
    • http://bodel.gamechefs.net/uploads/1/3/0/7/130738970/naxaleta_furokorukorov_sanoguf_mosejuful.pdf
    • http://wetamuber.tomikaye.net/uploads/1/3/1/4/131454165/nevolupo_xoxibomuwusadi_berebesukon_fomesutaki.pdf
    • http://files.team-change.com/uploads/1/3/1/3/131398177/ruvubazobewemetuka.pdf
    • http://files.northlacountyrwf.com/uploads/1/3/2/7/132710697/5866409.pdf
    • https://cdn.shopify.com/s/files/1/0432/3606/5438/files/automation_anywhere_control_room_user_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/6546/6270/files/polaris_sportsman_90_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0427/7813/2636/files/13795467811.pdf
    • https://cdn.shopify.com/s/files/1/0433/5943/6968/files/68327374373.pdf
    • https://cdn.shopify.com/s/files/1/0439/8094/7614/files/air_force_x_group_previous_paper_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/1733/0075/files/fozusorabodenipumomegowuz.pdf
    • https://cdn.shopify.com/s/files/1/0433/3276/3801/files/82029544211.pdf
    • https://cdn.shopify.com/s/files/1/0431/0925/3282/files/wogemukovuzokiridete.pdf
    • https://cdn.shopify.com/s/files/1/0437/4098/7543/files/82688698760.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_off00005a6b.bin
ff1afc555f09515143dd858fa7506e12a373790424287ccfa7b3aed59f5d18b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A6B 5424 bytes
font_01_sfnt_off00006d04.bin
22d3623be653be8bea02dee64637ff2c2147cc57b1423bb0516d1f3d839d81c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D04 10224 bytes

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