Malicious PDF — malware analysis report

Static analysis result for SHA-256 45b811ab26f8a11f…

MALICIOUS

PDF

51.5 KB Created: 2020-08-20 04:22:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 91bcb7ba9b82dfb4ee1ed7cb5f61cf82 SHA-1: 678de2df026e1919a4a3d76c7abce8c0eaf206c1 SHA-256: 45b811ab26f8a11fefee7e4c4f5d42a4405144a3349ade298fc0cd209dbc2959
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one URL pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'food menu design template word' and the malicious URL, suggesting a lure. The PDF's structure and embedded links indicate it's designed to redirect users to malicious infrastructure.

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=food+menu+design+template+word
    • http://pipomaw.goldloungemusic.com/uploads/1/3/0/7/130776611/dikefum-bumupiwen-lepesesiw-nidatifepus.pdf
    • http://jemefabot.dragonpalmfitness.com/uploads/1/3/0/9/130969061/zimijaviv_nagoluwo.pdf
    • http://files.ellenjoycetrayer.net/uploads/1/3/1/3/131379296/ganaludibo.pdf
    • http://files.pasolibre13.com/uploads/1/3/1/8/131858287/wexuvamo.pdf
    • http://xumex.vashonsheepdogclassic.com/uploads/1/3/0/8/130874329/jojoz.pdf
    • https://cdn.shopify.com/s/files/1/0452/4307/2674/files/android_9._0_samsung_s6_edge_plus.pdf
    • https://cdn.shopify.com/s/files/1/0454/6779/5608/files/gipebujigopuramo.pdf
    • https://cdn.shopify.com/s/files/1/0432/3049/4878/files/dukijipo.pdf
    • https://cdn.shopify.com/s/files/1/0432/6372/1637/files/blame_on_me_layton_greene.pdf
    • https://cdn.shopify.com/s/files/1/0431/7852/4832/files/3444586113.pdf
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/atresia_esofagica_pediatria.pdf
    • https://cdn.shopify.com/s/files/1/0433/7552/6042/files/vinujobolutub.pdf
    • https://cdn.shopify.com/s/files/1/0429/6038/8259/files/5105307321.pdf
    • https://cdn.shopify.com/s/files/1/0437/6566/1845/files/apc_mini_chopper.pdf
    • https://cdn.shopify.com/s/files/1/0429/1880/5657/files/fojozoponuvom.pdf
    • https://cdn.shopify.com/s/files/1/0437/0006/0310/files/how_to_make_black_and_white.pdf
    • https://cdn.shopify.com/s/files/1/0452/1666/1664/files/kelineniwisub.pdf
    • https://cdn.shopify.com/s/files/1/0436/8993/5003/files/minecraft_sky_city.pdf
    • https://cdn.shopify.com/s/files/1/0436/4392/8726/files/79052973598.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/
    • https://cdn.shopify.com/s/files/1/0452/4

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007df0.bin
1c5e32d9c0666f6a5d0dfaa5fc67385fcf4bbb61344bf45a4370e918e4d8e672
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DF0 5208 bytes
font_01_sfnt_off00008f9c.bin
0027fe0763172d50ec3021c70a39e90abf26459220ef12ced86feb8dc3452fd5
pdf-font-stream PDF embedded font (sfnt) at offset 0x8F9C 10132 bytes
font_02_sfnt_off0000b246.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0xB246 4324 bytes