Malicious PDF — malware analysis report

Static analysis result for SHA-256 28ab2c20dfe7b59e…

MALICIOUS

PDF

44.0 KB Created: 2020-09-13 05:50:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 32157ef46e093ca8c6fc02bbd7e85b14 SHA-1: 9b970a1f414f762d388075a5651341f9fe661786 SHA-256: 28ab2c20dfe7b59e153bf09779ff6c0e38aa57d0adf8cb1aea883d7a6621040a
150 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that is also flagged as a malicious redirector. This suggests the primary purpose is to redirect users to malicious sites, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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=ikea+galant+desk+size
    • http://ziluk.rosetuffery.com/uploads/1/3/2/8/132814930/9994328.pdf
    • http://files.quantumtunneling.net/uploads/1/3/2/7/132710763/jagumimukesavedogi.pdf
    • http://vanemaja.clansinclairusa.org/uploads/1/3/2/6/132695663/8d997a3.pdf
    • http://files.thrivebeautyco.ca/uploads/1/3/0/7/130776239/vonifolobaram_duxazo.pdf
    • http://feburig.stjohncatholicschool.org/uploads/1/3/0/8/130874277/xejuwizati-wizekiw.pdf
    • http://files.sir53oakmont.org/uploads/1/3/2/7/132712127/a8cc2768b0063b.pdf
    • http://zijerazew.soulutionscounselling.com/uploads/1/3/1/3/131383721/tafibojulabi_telagum_jowav_sawojubofuvu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lozafawofife.pdf
    • https://cdn.shopify.com/s/files/1/0463/2946/2945/files/tafowegatakavezuseluwu.pdf
    • https://cdn.shopify.com/s/files/1/0440/6339/1894/files/ap_grama_sachivalayam_2nd_merit_list.pdf
    • https://static.usrfiles.com/ugd/cc1a03_5f7a5878a8dd40e4bd8044874ee24d7f.pdf
    • https://static.usrfiles.com/ugd/6290de_12db8ac5c56a4540a9b16d09cc079804.pdf
    • https://static.usrfiles.com/ugd/0d2908_f73e5498430c46ea9c9d2479ae5b77ff.pdf
    • https://static.usrfiles.com/ugd/3aee12_a4376c25f5e64c92b31d69a7fe3983e9.pdf
    • https://static.usrfiles.com/ugd/d78803_3504a9764a4e4c6caffd44362d8b1789.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007009.bin
97f6c7eab7e65c1a1632a702ee701206b3506035ebe7416f38edf1391f49e067		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7009 4948 bytes
font_01_sfnt_off00008100.bin
77c3a0121a89cf6a81b8041e22c9c846408be68e73a18e73bb9b55824081236c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8100 13556 bytes

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