Malicious PDF — malware analysis report

Static analysis result for SHA-256 599d83ed5fe2bfff…

MALICIOUS

PDF

49.2 KB Created: 2020-07-31 21:43:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55ae614ef1222624e3ac81b073785998 SHA-1: adb099ff1bf84e3713cd120890e0480290c41cfb SHA-256: 599d83ed5fe2bfffa2a4299f0cf537f7e6f0a5650ba0675ef38904f1ab918016
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Ma vatsalya card form pdf' and includes the malicious URL, suggesting a phishing lure. The presence of numerous external PDF links also indicates a link farm strategy, likely to obscure the ultimate 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/wb?keyword=ma%20vatsalya%20card%20form%20pdf
    • http://files.romainewashington.com/uploads/1/3/1/8/131857193/ropodefi.pdf
    • http://files.leeshearman.com/uploads/1/3/2/6/132695707/supetoranarizo-doveted.pdf
    • http://files.jjeffreymesserole.com/uploads/1/3/1/3/131384018/f3faf9c41e.pdf
    • http://files.carriewears.com/uploads/1/3/1/8/131856188/pamisupido-movud-susifeki.pdf
    • http://files.heywoodracing.com/uploads/1/3/0/7/130739116/vabekoxi.pdf
    • https://cdn.shopify.com/s/files/1/0429/7709/9935/files/jukaxakenek.pdf
    • https://cdn.shopify.com/s/files/1/0427/8288/4006/files/pugugufu.pdf
    • https://cdn.shopify.com/s/files/1/0432/9635/8565/files/4962510008.pdf
    • https://cdn.shopify.com/s/files/1/0429/6110/9155/files/tekowokesemijuxotokibaman.pdf
    • https://cdn.shopify.com/s/files/1/0431/4333/2000/files/55947218524.pdf
    • https://cdn.shopify.com/s/files/1/0434/1579/7917/files/fasoramurekafomato.pdf
    • https://cdn.shopify.com/s/files/1/0434/7520/6294/files/tewifapizoket.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wexidemunuviviradepinitim.pdf
    • https://cdn.shopify.com/s/files/1/0435/5702/7992/files/mezibezunoted.pdf
    • https://cdn.shopify.com/s/files/1/0434/8700/2790/files/fesomevokamigigatunanoz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pajotoliwafugesekediriw.pdf
    • https://cdn.shopify.com/s/files/1/0437/5317/7237/files/mibisovelo.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_off00007823.bin
69fba12cfc8005dd9b54c247aec512ce965c8cdf7bb9c0f3bcb2f592cd6cb350		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7823 5468 bytes
font_01_sfnt_off00008ac0.bin
43e4fbb1e51c8b14b17d6d595de9af616dacd7cf7bb306dc43d6cd654d3986cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AC0 14552 bytes

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