Malicious PDF — malware analysis report

Static analysis result for SHA-256 c46c70f04dfe7e53…

MALICIOUS

PDF

46.1 KB Created: 2020-08-11 19:34:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: afe67389166f8ccbddb3c4f05205e44b SHA-1: 4966b5d9e47c517c9dcc641fa4e811728ff895ab SHA-256: c46c70f04dfe7e535f3bdb9202d2163ea9e618f2a6123c89fb47a3fd2d674d14
150 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary URL pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the same URLs, suggesting an attempt to lure the user to malicious infrastructure. No scripts were extracted, limiting further analysis of payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=hak+asasi+manusia+dalam+kesehatan+pdf
    • http://files.megremedialmassage.com/uploads/1/3/0/7/130776573/7297827.pdf
    • http://files.consciouswellnessroc.com/uploads/1/3/0/9/130969904/0b2fbaeb24.pdf
    • http://files.airporthoppermaynooth.com/uploads/1/3/1/8/131857465/retakozalogunewu.pdf
    • http://gigitaf.richardbogle.com/uploads/1/3/1/6/131636948/katilo.pdf
    • http://files.templecitypoodles.ca/uploads/1/3/0/7/130738614/rukaxep-bokakapuluk-jirojemeluna-damibid.pdf
    • https://cdn.shopify.com/s/files/1/0431/9579/3571/files/tuvunopenowimiduloda.pdf
    • https://cdn.shopify.com/s/files/1/0429/2260/6759/files/rotimisutuwoj.pdf
    • https://cdn.shopify.com/s/files/1/0435/6089/4627/files/lefozogolujimu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0783/5292/files/types_of_spanning_tree_protocol.pdf
    • https://cdn.shopify.com/s/files/1/0433/5940/4197/files/sulopupefuvaxoxuwon.pdf
    • https://cdn.shopify.com/s/files/1/0437/7994/8705/files/73350263147.pdf
    • https://cdn.shopify.com/s/files/1/0431/6410/6908/files/87605276291.pdf
    • https://cdn.shopify.com/s/files/1/0440/2351/3238/files/moposukuvivuwesewofif.pdf
    • https://cdn.shopify.com/s/files/1/0435/9595/6386/files/49275263974.pdf
    • https://cdn.shopify.com/s/files/1/0429/4954/2041/files/92213538669.pdf
    • https://cdn.shopify.com/s/files/1/0430/9119/8112/files/jugonusavukalexowawup.pdf
    • https://cdn.shopify.com/s/files/1/0434/8333/2772/files/72092386590.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_off00006a95.bin
03f904d0fe39d7a4e714a7f3d45835b8a14f2122a5bd7ac0d01f0d4c1efa926c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A95 4980 bytes
font_01_sfnt_off00007b4c.bin
abff9fb88a790464ec68d10ad9bcf9b6352edae2e6d9a1711f072b9c63dd59c3
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B4C 9912 bytes
font_02_sfnt_off00009d3b.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D3B 4324 bytes