Malicious PDF — malware analysis report

Static analysis result for SHA-256 497c9ba1d4e32ee1…

MALICIOUS

PDF

48.5 KB Created: 2020-08-03 13:41:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77705b482ba0dad57f806319754fb57d SHA-1: b947514bdac6f3355cec96372d01ed46de57b7ac SHA-256: 497c9ba1d4e32ee1204d72faf3eac08c4832a2b985f34e860083af35b7f5f2aa
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific redirector URL, indicating a lure to malicious infrastructure. The embedded document body text, though heavily obfuscated, contains the primary malicious URL. The PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics confirm the malicious nature of the links.

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=justice+administration+police+courts+and+corrections+management+8th+edition+pdf
    • http://files.mountainviewffa.org/uploads/1/3/1/4/131437276/temufi_mowetijugatatew.pdf
    • http://files.trchurchofchristcourses.com/uploads/1/3/1/4/131438759/jupizuvafug.pdf
    • http://zifozawup.seanotoledo.net/uploads/1/3/1/3/131384401/ad7beb24f5d.pdf
    • http://files.katescookhouse.com/uploads/1/3/1/3/131398308/9824dd35fb.pdf
    • https://cdn.shopify.com/s/files/1/0437/3096/0549/files/famorulef.pdf
    • https://cdn.shopify.com/s/files/1/0430/4453/6473/files/css_attribute_selector.pdf
    • https://cdn.shopify.com/s/files/1/0435/8724/0095/files/79268396082.pdf
    • https://cdn.shopify.com/s/files/1/0433/8457/0019/files/81461412503.pdf
    • https://cdn.shopify.com/s/files/1/0428/6241/1942/files/bujalu.pdf
    • https://cdn.shopify.com/s/files/1/0428/6935/8758/files/enter_the_gungeon_iron_coin.pdf
    • https://cdn.shopify.com/s/files/1/0430/8353/0407/files/ford_f-_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/6225/3978/files/xixoferadaru.pdf
    • https://cdn.shopify.com/s/files/1/0435/4303/6053/files/zepupeku.pdf
    • https://cdn.shopify.com/s/files/1/0432/7532/1499/files/57627885077.pdf
    • https://cdn.shopify.com/s/files/1/0431/3723/7146/files/19091288397.pdf
    • https://cdn.shopify.com/s/files/1/0432/0745/8975/files/zodozusa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/4952854333.pdf
    • https://cdn.shopify.com/s/files/1/0432/0398/5570/files/pepesabugegepesin.pdf
    • https://cdn.shopify.com/s/files/1/0429/6579/4965/files/67531389302.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_off00007126.bin
ddbdc2713f5a56d48067544e867f38a78e475a74a33f8bdcbd09ddb59e397eca
pdf-font-stream PDF embedded font (sfnt) at offset 0x7126 5632 bytes
font_01_sfnt_off00008411.bin
5b65b8e596fff86020c269f95d7ee601058b1321c14ca52059ebaa130bd1232c
pdf-font-stream PDF embedded font (sfnt) at offset 0x8411 9856 bytes
font_02_sfnt_off0000a5d4.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0xA5D4 4324 bytes