Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb04dcb388ab5492…

MALICIOUS

PDF

63.7 KB Created: 2020-08-06 07:22:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: de7c006551b36549820c9d7713add7f5 SHA-1: f18a015e2481359df35a7d9a7b151946a2c5c1d2 SHA-256: eb04dcb388ab5492c7ffcfcfcc690ea0954620b8dfb7997793dfc6c77a39ea32
152 Risk Score

Malware Insights

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

The PDF contains numerous links, including a critical redirector link to 'https://ttraff.cc/pify?keyword=aerofoil+lift+pdf', suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text related to 'Aerofoil lift pdf', likely a lure. The presence of a link farm and the ML classifier's high confidence further support malicious intent.

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.cc/pify?keyword=aerofoil+lift+pdf
    • http://files.dancemb.org/uploads/1/3/0/8/130874620/ritilini.pdf
    • http://files.innatdepauw.com/uploads/1/3/0/7/130739480/nubiv.pdf
    • http://files.silangwaterdistrict.com/uploads/1/3/2/6/132681513/3243869.pdf
    • https://cdn.shopify.com/s/files/1/0434/5721/6669/files/bexogutuvanakaromevunupo.pdf
    • https://cdn.shopify.com/s/files/1/0432/2718/5316/files/89697864876.pdf
    • https://cdn.shopify.com/s/files/1/0437/2329/2840/files/etymological_dictionary_of_greek_beekes.pdf
    • https://cdn.shopify.com/s/files/1/0434/4548/5725/files/personal_statement_for_university.pdf
    • https://cdn.shopify.com/s/files/1/0437/0412/3557/files/agustin_etchebarne_libros.pdf
    • https://cdn.shopify.com/s/files/1/0438/1612/4576/files/66085751302.pdf
    • https://cdn.shopify.com/s/files/1/0434/8238/2502/files/32693762121.pdf
    • https://cdn.shopify.com/s/files/1/0438/4423/9510/files/mobezaj.pdf
    • https://cdn.shopify.com/s/files/1/0434/6390/1334/files/twitch_shoutout_command.pdf
    • https://cdn.shopify.com/s/files/1/0435/2222/8376/files/piwejatosofejejajizovo.pdf
    • https://cdn.shopify.com/s/files/1/0435/6295/9006/files/5309427856.pdf
    • https://cdn.shopify.com/s/files/1/0435/8524/1245/files/weduboselox.pdf
    • https://cdn.shopify.com/s/files/1/0432/9200/0406/files/junewexif.pdf
    • https://cdn.shopify.com/s/files/1/0432/7591/1321/files/xewuju.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008d07.bin
0b9abc37b6dc9c2bc5520434c8466f4e78eeedc59d61bfa9ed59f9de102b83ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D07 4320 bytes
font_01_sfnt_off00009bbd.bin
24ea836868660a65541e43950e864abc1e03725d040fee4284cc3b347a875352		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BBD 16308 bytes
font_02_sfnt_off0000ced7.bin
0da5b551d84a453f500a6ba8ca1adfd4400b36dae0f103b74fb712e1a4f46a36		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCED7 16064 bytes
font_03_sfnt_off0000e377.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE377 4324 bytes

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