Malicious PDF — malware analysis report

Static analysis result for SHA-256 cde9be1926a1f447…

MALICIOUS

PDF

53.1 KB Created: 2020-08-22 14:40:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c06f73ae40712feafa777439d2c60519 SHA-1: 8451c5ac9c7099268e6885cf1ee877b7b1ed9391 SHA-256: cde9be1926a1f447a8802fab4faf962f459349f384cabe62f48a835a963847de
160 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'Yowhatsapp 2019 8.0' and includes numerous links, many pointing to Shopify domains, but one critical link to 'ttraff.com' is flagged as a malicious redirector. The heuristic 'SE_MFA_LURE' indicates the document is designed to harvest credentials or abuse multi-factor authentication. The presence of embedded URLs and the nature of the heuristics strongly suggest a phishing or redirection attack. No scripts were extracted, limiting the analysis of direct payload execution.

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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=yowhatsapp++2019+8.+0
    • http://pajenodus.wrenphotographynd.com/uploads/1/3/1/6/131607240/974802.pdf
    • http://sipikovuw.musicvisiontelevision.com/uploads/1/3/0/7/130739830/zezimazedoxuku_karege.pdf
    • http://files.saratogadandia.org/uploads/1/3/1/4/131453124/modewakukafigugi.pdf
    • http://lakowo.esamarc.org/uploads/1/3/0/8/130874493/669530fc0.pdf
    • https://cdn.shopify.com/s/files/1/0430/2956/1495/files/bluetooth_dongle_android_box.pdf
    • https://cdn.shopify.com/s/files/1/0431/3228/9175/files/chantilly_lace_song_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/0699/2289/files/what_is_centrifugal_casting.pdf
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/68770083540.pdf
    • https://cdn.shopify.com/s/files/1/0435/9618/5763/files/basic_english_grammar_book_for_competitive_exam.pdf
    • https://cdn.shopify.com/s/files/1/0435/8524/1256/files/xejakamelaram.pdf
    • https://cdn.shopify.com/s/files/1/0437/1791/8870/files/23391828739.pdf
    • https://cdn.shopify.com/s/files/1/0434/6963/5746/files/honeymooners_full_episodes.pdf
    • https://cdn.shopify.com/s/files/1/0435/1324/9944/files/change_text_size.pdf
    • https://cdn.shopify.com/s/files/1/0429/5308/0991/files/xajozukelipetomotewi.pdf
    • https://cdn.shopify.com/s/files/1/0433/2758/6457/files/tomunovifivuxomiv.pdf
    • https://cdn.shopify.com/s/files/1/0435/2301/4824/files/mahabali_hanuman_apnetv.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_off00007a50.bin
442d9ec1fc55667ac7de425aff176932a5ab4958ce74810c1a87653a699695ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A50 5540 bytes
font_01_sfnt_off00008d45.bin
4e7921b74df9839cd7d4912f8885df730901e56b3a99783f4222b74683180581		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D45 10304 bytes
font_02_sfnt_off0000b0a6.bin
1c6e817a0e8a7a43f840179c97f30203d39ded846f3464856eee4b48e2c9ecfc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB0A6 16656 bytes

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