Malicious PDF — malware analysis report

Static analysis result for SHA-256 cabb3385aa23ec43…

MALICIOUS

PDF

37.1 KB Created: 2020-08-24 01:32:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a6c6ca13a5656d9991f8651e68ea5db SHA-1: d5b77fc02bd375c370cbd66e7ae13aa002b9ae47 SHA-256: cabb3385aa23ec43f0823334bc17922b9b559c8261ac4cccf8bcea02515ecfe1
120 Risk Score

Malware Insights

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

The PDF file contains a prominent link that redirects to a malicious URL, masquerading as a game download. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this malicious redirection. The PDF also contains a large number of embedded links, as indicated by PDF_SEO_LINK_FARM, suggesting a link farm or phishing attempt. No scripts were extracted from this sample.

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=bomberman+2+apk
    • http://files.mindscapegallerystl.com/uploads/1/3/2/6/132683111/1329c.pdf
    • http://nakuve.rrlwc.com/uploads/1/3/1/8/131858661/nolalav.pdf
    • http://moribub.diversejewellers.com/uploads/1/3/1/3/131383483/nujerolugize_desukotopixifib_guxola.pdf
    • https://cdn.shopify.com/s/files/1/0431/5466/9729/files/tamilebelunoturegele.pdf
    • https://cdn.shopify.com/s/files/1/0431/1760/9122/files/bilutawakikasutas.pdf
    • https://cdn.shopify.com/s/files/1/0428/2325/4179/files/encyclopedia_of_chart_patterns_wiley_trading.pdf
    • https://cdn.shopify.com/s/files/1/0429/6497/5765/files/zifavubobegesaxabozako.pdf
    • https://cdn.shopify.com/s/files/1/0431/9900/4827/files/timimudofewegoroladox.pdf
    • https://cdn.shopify.com/s/files/1/0430/2818/5239/files/maresobimukaferemu.pdf
    • https://cdn.shopify.com/s/files/1/0437/1457/6537/files/kaliani_lyle_report.pdf
    • https://cdn.shopify.com/s/files/1/0433/9977/4364/files/bon_iver_skinny_love_piano_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0432/8184/2341/files/depifekewusukatabija.pdf
    • https://cdn.shopify.com/s/files/1/0435/7577/1304/files/jasuge.pdf
    • https://cdn.shopify.com/s/files/1/0429/3407/5558/files/codigo_penal_comentado_cesar_roberto_bitencourt.pdf
    • https://cdn.shopify.com/s/files/1/0429/7054/6329/files/pivexonujimotadu.pdf
    • https://cdn.shopify.com/s/files/1/0428/1607/7991/files/vujefamaposivefowobud.pdf
    • https://cdn.shopify.com/s/files/1/0430/7252/0352/files/86904007041.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/
    • https://cdn.shopify.com/s/files/1/0428/1607/79

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000538b.bin
db5408734d4f94ea8472732b34936e40c17570901ff813f06e6628518f0b9191
pdf-font-stream PDF embedded font (sfnt) at offset 0x538B 5140 bytes
font_01_sfnt_off000064ed.bin
4350b2548f0765beaf8864df13d77041d39678794bcbe6c5cbcbe1c53b5f0653
pdf-font-stream PDF embedded font (sfnt) at offset 0x64ED 10196 bytes