Malicious PDF — malware analysis report

Static analysis result for SHA-256 53da06da87488225…

MALICIOUS

PDF

41.3 KB Created: 2020-08-17 05:38:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: eb56200379e39c549985613035495fb5 SHA-1: 8f477052b9b292a87a3c1c8963541ff93952272e SHA-256: 53da06da874882257f59e5fcfe188b29f9ad82654f13b57b9aba5837263b6b7e
170 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF document contains a malicious redirector link and a large number of links to external PDFs, suggesting a link farm for SEO poisoning. The document body mentions 'Gta vice city cheat apk free' and includes a call-to-action phrase, indicating a lure to download a potentially malicious file. The presence of a password archive lure heuristic suggests the downloaded content might be encrypted. The primary malicious URL identified is ttraff.ru, which redirects to a page offering a game cheat download.

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=gta+vice+city+cheat+apk+free
    • http://files.amorajstudios.com/uploads/1/3/0/7/130739069/viwak-tikowex.pdf
    • https://cdn.shopify.com/s/files/1/0438/8824/6936/files/gorunopuvef.pdf
    • https://cdn.shopify.com/s/files/1/0435/9369/5395/files/vetatiwegemozax.pdf
    • https://cdn.shopify.com/s/files/1/0431/4346/3069/files/14443060797.pdf
    • https://cdn.shopify.com/s/files/1/0431/8298/1278/files/mukalapesemimulowipibut.pdf
    • https://cdn.shopify.com/s/files/1/0432/2246/6720/files/24936330463.pdf
    • https://cdn.shopify.com/s/files/1/0431/8999/3635/files/cursive_calligraphy_fonts.pdf
    • https://cdn.shopify.com/s/files/1/0430/4191/5042/files/73324044310.pdf
    • https://cdn.shopify.com/s/files/1/0431/4886/9786/files/15274232368.pdf
    • https://cdn.shopify.com/s/files/1/0430/6481/9874/files/bakeles.pdf
    • https://cdn.shopify.com/s/files/1/0428/4894/4284/files/95027370835.pdf
    • https://cdn.shopify.com/s/files/1/0435/4696/8218/files/foxixagegowepuzari.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062f6.bin
0ea2055c8770f503bbf489a25fd5f35a2ed1832629aac44a818a0385906fa8ec
pdf-font-stream PDF embedded font (sfnt) at offset 0x62F6 5148 bytes
font_01_sfnt_off0000748b.bin
832e7c317303b545caa26fb63b96a530babdf13637967cce4b522b99886384d2
pdf-font-stream PDF embedded font (sfnt) at offset 0x748B 10412 bytes