Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae7290989ecfd6d4…

MALICIOUS

PDF

45.1 KB Created: 2020-08-10 12:45:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7daa0be5c4247bcc1272f29591526242 SHA-1: 860241a41bfa29d6d026e9a36cdbf8a5a7bde3d5 SHA-256: ae7290989ecfd6d4da9a1bd23abf169362ef83af32f147cb0f3316a541baf7fb
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing indicating a link to known malicious redirector infrastructure at https://ttraff.com/pify?keyword=how+to+cite+pdf+article+apa+style. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect the user to malicious content. No scripts were extracted from this sample.

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=how+to+cite+pdf+article+apa+style
    • http://files.washingtonneedle.com/uploads/1/3/1/6/131607027/bugipesetaxib.pdf
    • http://fegawaw.elementalpsychotherapy.com/uploads/1/3/0/7/130739415/mifosikatul_poxenunim_xotoju.pdf
    • http://files.nicholslawpdx.com/uploads/1/3/1/3/131379049/e237e78444cbb25.pdf
    • http://files.mindactionplan.com/uploads/1/3/0/7/130738794/fonixajade.pdf
    • https://cdn.shopify.com/s/files/1/0428/5290/9212/files/va_form_21p-_8416.pdf
    • https://cdn.shopify.com/s/files/1/0437/9561/1810/files/52502850843.pdf
    • https://cdn.shopify.com/s/files/1/0430/0144/6554/files/posebusibebozevev.pdf
    • https://cdn.shopify.com/s/files/1/0433/4243/0362/files/angielski_sownictwo_chomikuj.pdf
    • https://cdn.shopify.com/s/files/1/0434/1484/7655/files/oxford_english_spelling_rules.pdf
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/24335970548.pdf
    • https://cdn.shopify.com/s/files/1/0437/7378/8321/files/metevuzupakatepuvufopa.pdf
    • https://cdn.shopify.com/s/files/1/0453/8574/4552/files/astronomy_books_in_tamil.pdf
    • https://cdn.shopify.com/s/files/1/0434/3817/8470/files/weight_conversion_nhs.pdf
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/arquitectura_bioclimatica_tesis.pdf
    • https://cdn.shopify.com/s/files/1/0436/4645/1862/files/tx9xd-_98n7v-_6wmq6-_bx7fg-_h8q99.pdf
    • https://cdn.shopify.com/s/files/1/0428/1335/8247/files/mibowanixevusamot.pdf
    • https://cdn.shopify.com/s/files/1/0433/7798/3653/files/raxarapodanunokolugojin.pdf
    • https://cdn.shopify.com/s/files/1/0430/7940/1634/files/68969699996.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066b4.bin
b7d2711b54e0c7c0f86072d23a0feae0a76472e2e4e4aa6ffcbcf467ad98fe41
pdf-font-stream PDF embedded font (sfnt) at offset 0x66B4 4984 bytes
font_01_sfnt_off000077ca.bin
49c7434a5335cfe2d6134f7df5b3bb51cf7b828c999d61dd3b4feb2b6fbb1832
pdf-font-stream PDF embedded font (sfnt) at offset 0x77CA 9704 bytes
font_02_sfnt_off000098f0.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0x98F0 4324 bytes