Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec2a2fe2e7e81e53…

MALICIOUS

PDF

55.4 KB Created: 2020-08-12 02:19:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53d593737f0f72a7d857bb582326618d SHA-1: 929eaf6aaa78ce2a8a5037214bbf0930163ece87 SHA-256: ec2a2fe2e7e81e53dbbf0e566402d34797ba2cd8dd6b1f305a21cfdfbc5ddcf4
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=bring+up+genius+pdf+%25D8%25B9%25D8%25B1%25D8%25A8%25D9%258A, which likely serves as a gateway to further malicious content. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious payloads disguised as legitimate documents.

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=bring+up+genius+pdf+%25D8%25B9%25D8%25B1%25D8%25A8%25D9%258A
    • http://files.islanddazeexotictravel.com/uploads/1/3/0/7/130739312/vosibudaxusabem_faloxozipafage_tewiwu_xufig.pdf
    • http://files.weheartsecondaryteachers.com/uploads/1/3/2/6/132695244/kujalaw.pdf
    • http://judamu.neamakrihome.com/uploads/1/3/1/3/131381533/wibotonamojojek-lafop-gevivi-lofum.pdf
    • http://bedozum.therabmedical.com/uploads/1/3/2/8/132814194/1874398.pdf
    • https://cdn.shopify.com/s/files/1/0436/8806/7225/files/5000_followers_apk.pdf
    • https://cdn.shopify.com/s/files/1/0437/1818/1016/files/22134116423.pdf
    • https://cdn.shopify.com/s/files/1/0437/0002/7545/files/geometric_sequence_notes.pdf
    • https://cdn.shopify.com/s/files/1/0433/8899/3699/files/velediruzuzirewilerajip.pdf
    • https://cdn.shopify.com/s/files/1/0429/9699/0115/files/62097474658.pdf
    • https://cdn.shopify.com/s/files/1/0428/2122/2567/files/jusanufotojuzosizigolez.pdf
    • https://cdn.shopify.com/s/files/1/0431/1416/8480/files/13557630468.pdf
    • https://cdn.shopify.com/s/files/1/0429/6497/5765/files/81575934407.pdf
    • https://cdn.shopify.com/s/files/1/0434/1334/0312/files/56934591580.pdf
    • https://cdn.shopify.com/s/files/1/0431/2501/4679/files/5449249795.pdf
    • https://cdn.shopify.com/s/files/1/0431/1767/4656/files/shawn_mendes_show_you.pdf
    • https://cdn.shopify.com/s/files/1/0432/0778/6654/files/34979871226.pdf
    • https://cdn.shopify.com/s/files/1/0438/6009/9222/files/xigafikop.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b16.bin
443b2fb6404e8b5f9ae8974b816aa80c47dea8ee905b4ddefff3ad4d9ea38d30		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B16 6832 bytes
font_01_sfnt_off00006c64.bin
c6258aac4093ee362bb2342f50744646338b68d950b3ee70e13d7edc2e0537e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C64 5016 bytes
font_02_sfnt_off00007d89.bin
3ce7d398d3aeccb3beaeca27b947688d3083e6b696fac2bb54dab3896502a11c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D89 16544 bytes
font_03_sfnt_off00009464.bin
89729ed43be6416286d674ffc1f0a0d3b08aa475661098a6a368f306598c9881		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9464 10060 bytes
font_04_sfnt_off0000b6f5.bin
b88c55219ef84bd2ff48a12f23060c6b86d25efbafe4a8493ce51f9ac91249ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB6F5 16488 bytes

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