Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b4ecbd2e8ac1876…

MALICIOUS

PDF

46.3 KB Created: 2020-08-21 17:58:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 576378acb11af27f29399680e0b78496 SHA-1: e2c0f6549fb532a59b3db5a15ca4510ceb5ad06f SHA-256: 9b4ecbd2e8ac187609b788b56e892a325c89a74e90a2b0d5d9c1d0cc4975459a
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One of the primary links, https://ttraff.ru/pify?keyword=jai+bajrangbali+hd+photo, is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to direct users to malicious infrastructure. The presence of numerous links, including the malicious redirector, indicates a link farm or redirection attack pattern.

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.ru/pify?keyword=jai+bajrangbali+hd+photo
    • http://files.highbanks.com/uploads/1/3/0/8/130814078/faruzamuxug.pdf
    • http://getabaxad.elbigotedepandereta.com/uploads/1/3/2/6/132681862/famavukavixali-zoburaxo.pdf
    • http://ropon.brianjwelch.com/uploads/1/3/0/8/130874276/muruw.pdf
    • https://cdn.shopify.com/s/files/1/0440/1030/7749/files/lugikeg.pdf
    • https://cdn.shopify.com/s/files/1/0433/5117/9416/files/physics_volume_2_halliday_resnick_krane.pdf
    • https://cdn.shopify.com/s/files/1/0440/2987/0230/files/wasujek.pdf
    • https://cdn.shopify.com/s/files/1/0437/6412/1752/files/vofilasibufisexodutanad.pdf
    • https://cdn.shopify.com/s/files/1/0438/6678/3904/files/grupo_de_antibioticos_betalactamicos.pdf
    • https://cdn.shopify.com/s/files/1/0431/7977/0019/files/suzeg.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56666804065.pdf
    • https://cdn.shopify.com/s/files/1/0431/3550/0439/files/dokulakadamunozuro.pdf
    • https://cdn.shopify.com/s/files/1/0435/2347/3560/files/58844459378.pdf
    • https://cdn.shopify.com/s/files/1/0434/0659/0106/files/pofovewepule.pdf
    • https://cdn.shopify.com/s/files/1/0434/3254/2369/files/rational_exponents_worksheet_algebra_1.pdf
    • https://cdn.shopify.com/s/files/1/0433/3764/6245/files/atomic_habits_summary.pdf
    • https://cdn.shopify.com/s/files/1/0432/8649/5397/files/fizavalegisi.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_off000062c4.bin
22771f3d4f4c5fdaf571ae77aecc5037b4354d5d8e799298ef05dabd35f727d9
pdf-font-stream PDF embedded font (sfnt) at offset 0x62C4 5248 bytes
font_01_sfnt_off00007488.bin
b3f607d0436c53517e3336aceb7ad8712c83d851f3013592925dcd74822b3dfd
pdf-font-stream PDF embedded font (sfnt) at offset 0x7488 14576 bytes
font_02_sfnt_off0000a1da.bin
a266c491f4931368510dae9bd4cf4b58734b51aa8192ea38aee5fe523c195c0e
pdf-font-stream PDF embedded font (sfnt) at offset 0xA1DA 2572 bytes