Malicious PDF — malware analysis report

Static analysis result for SHA-256 57aeecdadb2e2a71…

MALICIOUS

PDF

91.0 KB Created: 2020-08-21 14:58:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ca95c3c48d827c431688b0119879692 SHA-1: b2597679ab68b3e9de02b6e1d6894205e9080a0a SHA-256: 57aeecdadb2e2a71f6bfa7de53d40f0a26675d30fd96a6a9a0f3681c2ee453b0
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, suggesting an attempt to manipulate search engine results or distribute content broadly. The presence of a visual download button lure further supports the malicious intent of directing users to external, potentially harmful, resources.

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.
  • 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.com/pify?keyword=bollywood+movies+2018++in+mp4
    • http://files.akseducare.com/uploads/1/3/1/8/131871597/be2d2cd.pdf
    • http://files.cateringandcreations.net/uploads/1/3/0/8/130814513/9295549.pdf
    • http://pinujewes.circledmountaindog.com/uploads/1/3/0/7/130739344/rebiwafoxumik.pdf
    • https://cdn.shopify.com/s/files/1/0435/5129/3603/files/monolithic_construction.pdf
    • https://cdn.shopify.com/s/files/1/0428/8462/8633/files/deginemodotanevisoju.pdf
    • https://cdn.shopify.com/s/files/1/0429/3296/1443/files/72730889526.pdf
    • https://cdn.shopify.com/s/files/1/0430/5072/9634/files/72015821511.pdf
    • https://cdn.shopify.com/s/files/1/0430/6305/0394/files/is_e_x_even_or_odd.pdf
    • https://cdn.shopify.com/s/files/1/0436/1905/7822/files/buku_akuntansi_keuangan_dasar.pdf
    • https://cdn.shopify.com/s/files/1/0430/6465/6026/files/acls_provider_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/8371/9071/files/30190665750.pdf
    • https://cdn.shopify.com/s/files/1/0430/4414/3253/files/let_my_love_adore_you_song.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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd9d.bin
f1c1dcf9c9de2b714663ff3bee1716ae8e616e86c81eae0f5cd5b9e56662be23		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDD9D 5708 bytes
font_01_sfnt_off0000f12c.bin
5365cbd47af44c1957a500080a72a2de8227e2f6e6adf564bac3f71c3a30f5c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF12C 8144 bytes
font_02_sfnt_off00010760.bin
6539b129c5cd894636dc8f40f53a156c00c8f46378ab4f137c96d687a1cff6ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10760 3720 bytes
font_03_sfnt_off000112bb.bin
7314a8110a688275e79cb4cd5cd058a9f858becaa7f01fde0a687197ddc85302		 pdf-font-stream PDF embedded font (sfnt) at offset 0x112BB 1716 bytes
font_04_sfnt_off00011b46.bin
ae91cb56deab1fc64a3c6c15ef4519f03ae767d12c6f7a764bab07bf5672892e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11B46 12084 bytes
font_05_sfnt_off0001443e.bin
056fe315377fc5216ca17e03b680382293c6226764c1bb4c2ddafa05433162b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1443E 7316 bytes

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