Malicious PDF — malware analysis report

Static analysis result for SHA-256 389f430e5e1964f0…

MALICIOUS

PDF

53.7 KB Created: 2020-08-10 19:47:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86476ed455c5c23b9e4f38eca47db560 SHA-1: 2365a2f29ac372d44ed1335867a210a969955b79 SHA-256: 389f430e5e1964f0cd2fe39e6a0836cb73771f6cea46b8c0d817769bec7010a0
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.ru/pify?keyword=durable+power+of+attorney+north+carolina+form+adobe+pdf', is designed to lure users into clicking it by appearing as a legitimate legal document. The document also contains a large number of external PDF links, indicating a link farm, with many pointing to potentially malicious domains.

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=durable+power+of+attorney+north+carolina+form+adobe+pdf
    • http://woxen.jasondrums.com/uploads/1/3/1/4/131453574/dalipoxewivipinomon.pdf
    • http://files.dkg-zeta.ab.ca/uploads/1/3/2/8/132814958/a74d75.pdf
    • http://files.thebrittabrady.com/uploads/1/3/2/7/132741241/pabojakagozi-vokiva-podalebotedini.pdf
    • http://bitase.corporatechilllout.com/uploads/1/3/1/4/131407511/5c7836e4a0805.pdf
    • http://fedoto.iahaschools.com/uploads/1/3/0/7/130776485/xajem.pdf
    • http://bitase.corporatechilllout.com/uploads/1/3/1/4/13140
    • https://cdn.shopify.com/s/files/1/0432/4121/0024/files/99055879036.pdf
    • https://cdn.shopify.com/s/files/1/0431/8376/7713/files/story_by_stephen_king.pdf
    • https://cdn.shopify.com/s/files/1/0438/3545/7698/files/mizozuxobasize.pdf
    • https://cdn.shopify.com/s/files/1/0428/8679/1334/files/9955640005.pdf
    • https://cdn.shopify.com/s/files/1/0428/9373/8143/files/xepakaneveb.pdf
    • https://cdn.shopify.com/s/files/1/0428/5038/6086/files/lepurudilaboratukiwefol.pdf
    • https://cdn.shopify.com/s/files/1/0431/0981/0343/files/assessment_of_student_learning_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/7514/1783/files/9_____2020.pdf
    • https://cdn.shopify.com/s/files/1/0441/2866/5752/files/carnivore_diet_food_list.pdf
    • https://cdn.shopify.com/s/files/1/0432/4317/6091/files/buddhism_as_philosophy_siderits.pdf
    • https://cdn.shopify.com/s/files/1/0432/2010/7424/files/56647313046.pdf
    • https://cdn.shopify.com/s/files/1/0428/0372/4455/files/modiporu.pdf

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a39.bin
d03214d0ee29000ac4d66ce0701b1b0177cd2d0d46bf18206ddef5f1640a95c5
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A39 5552 bytes
font_01_sfnt_off00007cfd.bin
9ac43d1e625691275be1baeeb7de2d8335cb2e6f3a966b3d0936fe38c35e022b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7CFD 4784 bytes
font_02_sfnt_off00008da7.bin
eba49613d443b66283ec55c37139c6aa21505bb395d4dd5975216f1daac2ea4f
pdf-font-stream PDF embedded font (sfnt) at offset 0x8DA7 14964 bytes
font_03_sfnt_off0000bcaf.bin
665dc302a94b083c42b4bc8fe819e81246b0340edd3fe0384b3d111df1fcee7c
pdf-font-stream PDF embedded font (sfnt) at offset 0xBCAF 16268 bytes