Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9aeef70c951814a…

MALICIOUS

PDF

66.7 KB Created: 2020-08-22 00:20:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 873ea2d95f41ff14938fc71ad0ed304d SHA-1: b094d43ddaac3df11aaac95311dc781d48252fab SHA-256: f9aeef70c951814a2930f9414fae8a3d869d6ce1aaa9171a6bf0a0288fd08866
120 Risk Score

Malware Insights

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

The PDF file contains multiple heuristics indicating malicious redirection and a link farm. The document body, though partially corrupted, contains a URL that matches the malicious redirector heuristic. This suggests the PDF is designed to redirect users to malicious infrastructure, likely for further exploitation or phishing. The presence of numerous links to external PDFs, many hosted on Shopify, further supports the link farm heuristic.

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=colour+wheel+template+in+french
    • http://files.swellamy.com/uploads/1/3/1/3/131384070/xenedurobararisut.pdf
    • http://domumuzok.psycho-sea-glass-sisters.com/uploads/1/3/0/9/130968921/saloxa_fomur.pdf
    • http://zikined.noradragoon.com/uploads/1/3/0/7/130775195/tuxisovo_laxebugefil_novebulexekiwun.pdf
    • http://files.connectkatycounseling.com/uploads/1/3/0/8/130874207/soneju-jesomojajuz-woganimumajiwul-fikomezo.pdf
    • http://files.maritimeqha.com/uploads/1/3/0/7/130775992/turuxalasabedoze.pdf
    • https://cdn.shopify.com/s/files/1/0434/7287/9773/files/55527872106.pdf
    • https://cdn.shopify.com/s/files/1/0431/6862/8890/files/84928033937.pdf
    • https://cdn.shopify.com/s/files/1/0436/9901/1738/files/15093075809.pdf
    • https://cdn.shopify.com/s/files/1/0428/7673/1558/files/dapitadigugom.pdf
    • https://cdn.shopify.com/s/files/1/0460/4008/8740/files/dice_otedola_song.pdf
    • https://cdn.shopify.com/s/files/1/0429/0835/2679/files/free_basic_budget_spreadsheet_excel.pdf
    • https://cdn.shopify.com/s/files/1/0430/6770/3457/files/askerlik_kanunu_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/7950/7872/files/asterix_y_obelix_comics_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53293114795.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bovabokuvuxinapuwukiberem.pdf
    • https://cdn.shopify.com/s/files/1/0435/3189/4948/files/curso_de_alta_gerencia.pdf
    • https://cdn.shopify.com/s/files/1/0443/2569/9740/files/film_after_fall_winter.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_off0000a5ed.bin
45a9e57bb8ec48648e95dee7cf106b41ef4303c6ad70317fc4e17466a72b965c
pdf-font-stream PDF embedded font (sfnt) at offset 0xA5ED 5076 bytes
font_01_sfnt_off0000b720.bin
447b85308c04f33a871b7b85ca2b77c3a40a76087f022b5d5efa5da0f6713c99
pdf-font-stream PDF embedded font (sfnt) at offset 0xB720 10192 bytes
font_02_sfnt_off0000da37.bin
1445775b9a23a908738d4b50a39a0185987e6b0dbf67120e278101207b724a2a
pdf-font-stream PDF embedded font (sfnt) at offset 0xDA37 16064 bytes
font_03_sfnt_off0000eeda.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0xEEDA 4324 bytes