Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7620a2a2c7f6f27…

MALICIOUS

PDF

56.2 KB Created: 2020-09-01 22:33:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 71a3b1733ca46f1a8cae35d8014a9eff SHA-1: 28d83af683e8f45645ba6a076a824852d4620d5a SHA-256: d7620a2a2c7f6f270d4df111454772c36bda1bd245a559e4200dd415e0437056
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a redirector service (ttraff.com) that is known to host malicious content. The document body, though heavily obfuscated, contains text related to 'Videoshow pro apk premium' and the redirector URL, suggesting a lure to download an application. The presence of numerous external PDF links further indicates a link farm strategy, likely to obscure the malicious destination.

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=videoshow+pro+apk+premium
    • https://static.usrfiles.com/ugd/b58d21_2d6ccfecea5e44ea86e267ebca6907a1.pdf
    • https://static.usrfiles.com/ugd/89c6ad_3a96132778f946989d4a004019242fc2.pdf
    • https://static.usrfiles.com/ugd/b8c837_99a92faeef5145e1ab0537b4a46ed1b1.pdf
    • https://static.usrfiles.com/ugd/77d535_214c40d99d554b4a94fb77fe02b1519c.pdf
    • https://static.usrfiles.com/ugd/1c8c6c_b2507842884142a7b21ebb66c6f8ab6b.pdf
    • https://cdn.shopify.com/s/files/1/0435/1400/3610/files/1840_case_skid_steer_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/68513135127.pdf
    • https://cdn.shopify.com/s/files/1/0429/2427/7927/files/xepejapelakeperami.pdf
    • https://cdn.shopify.com/s/files/1/0461/9760/4503/files/jikupatilenufavob.pdf
    • https://cdn.shopify.com/s/files/1/0431/0728/7206/files/8687822580.pdf
    • https://cdn.shopify.com/s/files/1/0429/4718/2759/files/haunted_mine_osrs_guide.pdf
    • https://cdn.shopify.com/s/files/1/0438/3434/3574/files/wozase.pdf
    • https://cdn.shopify.com/s/files/1/0427/6181/4172/files/cause_and_effect_matrix_for_fire_alarm_system.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
stream_005_off0000a207.bin
f434079664993c85387d4ea4d3b293260f80038faaad65b18e544a2e6dfdb6a6		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xA207 27484 bytes
font_00_sfnt_off00006c6d.bin
6dbd366755645e777999ff75b712968c049c822e9ab8bd5b54a623b4ef67c5b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C6D 5288 bytes
font_01_sfnt_off00007e51.bin
e99d887ab0f01c46b184dd8e1f8b1a4ba18ba7c3cb13e505138540c82cc497e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E51 10364 bytes

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