Malicious PDF — malware analysis report

Static analysis result for SHA-256 5898bf826ac9a556…

MALICIOUS

PDF

44.8 KB Created: 2020-08-19 03:06:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 514ca8a6cdb1197b24b36452c6c6b762 SHA-1: 837053093f7d9d86f5fbc01b03668ecba48d7237 SHA-256: 5898bf826ac9a55669ce86da48ea2af879aca9c212570bb6d57f7f5bd70830fd
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though partially corrupted, contains text related to 'Cara lagu gratis di iphone 5' and includes the malicious URL. This suggests a phishing or scam attempt designed to redirect users to malicious infrastructure.

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.ru/pify?keyword=cara++lagu+gratis+di+iphone+5
    • http://rinibajir.transfiguration-mtl.org/uploads/1/3/2/7/132740905/1472974.pdf
    • http://files.besedin.org/uploads/1/3/1/4/131437276/6071c2ec86.pdf
    • http://files.heatherseagraves.com/uploads/1/3/2/3/132302774/nufigidoruz-reverime-mojavo.pdf
    • https://cdn.shopify.com/s/files/1/0431/7354/4093/files/access_my_icloud_photos_on_android.pdf
    • https://cdn.shopify.com/s/files/1/0431/0781/1495/files/eromski_ludzie_bezdomni.pdf
    • https://cdn.shopify.com/s/files/1/0433/1474/1413/files/telecharger_bible_aelf.pdf
    • https://cdn.shopify.com/s/files/1/0430/3106/8825/files/70962391339.pdf
    • https://cdn.shopify.com/s/files/1/0440/1030/7749/files/safozikuxunirivorubop.pdf
    • https://cdn.shopify.com/s/files/1/0436/0696/6429/files/sivejukofivelikezigubugox.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78992801071.pdf
    • https://cdn.shopify.com/s/files/1/0439/2108/0475/files/calendario_de_vacunacion_2020_peru.pdf
    • https://cdn.shopify.com/s/files/1/0429/6205/9427/files/73878373445.pdf
    • https://cdn.shopify.com/s/files/1/0431/4267/6636/files/16109294541.pdf
    • https://cdn.shopify.com/s/files/1/0430/1714/2433/files/zivurewo.pdf
    • https://cdn.shopify.com/s/files/1/0432/9334/3899/files/muvitexim.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_off00005e88.bin
5ab779b94947b3dbcae230d905a31a5aa0e738d452e733a42a354f8160ea40c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E88 5252 bytes
font_01_sfnt_off0000705e.bin
c174ece6d17042ad6332cc75ca0e62a31da8a4552422bc131c356a5cf975666d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x705E 9592 bytes
font_02_sfnt_off00009177.bin
700ff7bf493bf9bab5e7bd19ce07725d6ad682c9ec1bd4c381fbd4d74ba1924a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9177 16088 bytes

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