Malicious PDF — malware analysis report

Static analysis result for SHA-256 933544c7b34cc239…

MALICIOUS

PDF

40.2 KB Created: 2020-08-23 06:56:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9343b7e5d32af612d67f937512a81669 SHA-1: 214c4d7b2b5ba0f3b351c19059fe0b5d3011f406 SHA-256: 933544c7b34cc239c9196c1d4271f47c56cdb60a4bf2575766198ae7fd581e2c
140 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.com' which is disguised with a keyword related to 'audio call recorder pro apk'. Additionally, it hosts a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO manipulation tactic. The presence of a callback lure further indicates a phishing or scam attempt.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=audio+call+recorder+pro+apk
    • http://palowib.tinmanministries.com/uploads/1/3/2/7/132740580/7454992.pdf
    • http://vowifut.riverparishtheatre.org/uploads/1/3/1/4/131438641/7411082.pdf
    • http://files.foundationforpoliticsandleadership.org/uploads/1/3/0/7/130739076/mulejugulivokadu.pdf
    • http://files.nurtureandnature.org/uploads/1/3/0/8/130874569/pinikop_bakiloxufudom_xumuk_lizitewupu.pdf
    • https://cdn.shopify.com/s/files/1/0437/9105/7058/files/kabbalah_rituals_for_prosperity.pdf
    • https://cdn.shopify.com/s/files/1/0431/7213/5074/files/arabic_remix_song_3gp.pdf
    • https://cdn.shopify.com/s/files/1/0433/9413/8268/files/10332807251.pdf
    • https://cdn.shopify.com/s/files/1/0430/9617/8849/files/arbeitszeugnis_bedeutung_formulierungen.pdf
    • https://cdn.shopify.com/s/files/1/0429/4829/6857/files/34763983303.pdf
    • https://cdn.shopify.com/s/files/1/0447/1295/1961/files/gta_5_pc_cheat_codes.pdf
    • https://cdn.shopify.com/s/files/1/0440/2675/7270/files/zobobijojixi.pdf
    • https://cdn.shopify.com/s/files/1/0432/7889/3214/files/digital_marketing_interview_questions.pdf
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/lufonafixiralemelabiwe.pdf
    • https://cdn.shopify.com/s/files/1/0434/7258/4870/files/gifesokukexovajuzal.pdf
    • https://cdn.shopify.com/s/files/1/0430/6773/6225/files/petefufegapisexofisenoke.pdf
    • https://cdn.shopify.com/s/files/1/0430/0688/6051/files/99004320227.pdf
    • https://cdn.shopify.com/s/files/1/0429/3266/6524/files/85335647364.pdf
    • https://cdn.shopify.com/s/files/1/0432/5824/9376/files/android_barcode_scanner_fixed_focus_camera.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_off00006160.bin
2a4462727a4f9bdb4af998c57d0818a26adb68ee8623d823f7b131c5fa94f824
pdf-font-stream PDF embedded font (sfnt) at offset 0x6160 4940 bytes
font_01_sfnt_off00007238.bin
05b4af4b449f174d64cd30b26d30ec53a4cd5ae1013c38ac71d5aa2d66c6757a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7238 9872 bytes