Malicious PDF — malware analysis report

Static analysis result for SHA-256 77a3c36579921eca…

MALICIOUS

PDF

44.3 KB Created: 2020-08-18 23:30:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a74851a60f6092ab45f78f37ea285af SHA-1: 7a40038d876ae8e44a30419a015449b9598a13a0 SHA-256: 77a3c36579921ecac0356a7f1bd4f4318e5d08f70a5c933d96f49ca6fa4d487e
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded links, many of which point to a link farm designed to redirect users to potentially malicious content. The primary redirector URL, https://ttraff.ru/pify?keyword=marriage+website+template+free, is flagged as malicious. The document's content, though heavily obfuscated, suggests a lure related to website templates, likely to trick users into visiting the malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=marriage+website+template+free
    • http://porak.carolsullivanperkins.com/uploads/1/3/0/9/130968984/3192468.pdf
    • http://files.annroberts.com.au/uploads/1/3/0/8/130874097/fudepibepuj.pdf
    • http://fixizu.rwarrenrapp.com/uploads/1/3/1/6/131637016/3125541.pdf
    • http://xebuwi.ashleysandersonphotography.com/uploads/1/3/2/6/132683080/37e566.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0437/6500/6494/files/jomapepajisitiz.pdf
    • https://cdn.shopify.com/s/files/1/0450/1517/1236/files/soda_premium_crack.pdf
    • https://cdn.shopify.com/s/files/1/0431/4644/4960/files/honda_mini_trail_50.pdf
    • https://cdn.shopify.com/s/files/1/0430/5246/6325/files/cancionero_carismatico_catolico.pdf
    • https://cdn.shopify.com/s/files/1/0428/7057/1174/files/bekilobowadowunefolisi.pdf
    • https://cdn.shopify.com/s/files/1/0432/6755/5481/files/kipuz.pdf
    • https://cdn.shopify.com/s/files/1/0431/6931/7020/files/ramivo.pdf
    • https://cdn.shopify.com/s/files/1/0452/0319/4007/files/13829859255.pdf
    • https://cdn.shopify.com/s/files/1/0429/0949/9558/files/jagosotemuzefesipuwuw.pdf
    • https://cdn.shopify.com/s/files/1/0430/0413/3525/files/black_magic_speed_test.pdf
    • https://cdn.shopify.com/s/files/1/0439/1688/6184/files/gta_5_doomsday_heist_hacking_guide.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006507.bin
959cd71c87052eb32d3d34cf4b5e58c0ae152c72e568840d79186080f0691a95		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6507 5460 bytes
font_01_sfnt_off00007795.bin
72a3fe65f0a21df30f240897224061cfa351088b80a4eb601fb5defb198ec993		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7795 2268 bytes
font_02_sfnt_off000081a6.bin
211294662d19684e19c8ea7c1cf63accb1bf1674bb473d399ce5a098812dcabb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81A6 9976 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.