Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b0291e348fa6425…

MALICIOUS

PDF

47.5 KB Created: 2020-09-20 07:38:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bab1eb0df953aa1046d74e7806dd74db SHA-1: a5e5cf0a5ed0837b469c5752080110c77c9e6a2c SHA-256: 6b0291e348fa6425edfce3cd90dc9cbcbf118040b004876af13e2f3f4c31edf1
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, including a known malicious redirector at 'https://ttraff.link/wix?keyword=jack+johnson+sleep+through+the+static+review'. This suggests the document is designed to drive traffic to potentially malicious sites, likely as part of a phishing or scam campaign. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.link/wix?keyword=jack+johnson+sleep+through+the+static+review
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://17a62954-6414-440a-a725-4ea7f9b40345.filesusr.com/ugd/229b11_c823ebc234f547c1805ce4cf6788c3f8.pdf?index=true
    • https://ec97e005-f066-408d-bbc7-0911188dd890.filesusr.com/ugd/7a13df_38f1f42171974b798d8cfce838928c56.pdf?index=true
    • https://a236c880-4e27-455a-8700-74b759fac5f4.filesusr.com/ugd/314c35_edc7558f576246e0b85e52d04c3055e1.pdf?index=true
    • https://57a98e8e-3503-4cca-95eb-c24be7730c92.filesusr.com/ugd/39cb9d_9aea8b6e83ce4940a5708e97f42e9774.pdf?index=true
    • https://49e86ade-9440-48b0-a0fc-dfb22b9c8d48.filesusr.com/ugd/ab922d_20e7ae87604e435da42573f6777ab22c.pdf?index=true
    • https://172f8f83-46e1-4d54-8ff8-6a4085c24f2b.filesusr.com/ugd/868f76_94918a50c25347a68eaaf10a6ba8b93f.pdf?index=true
    • https://3f43ab97-1270-4b32-b8d2-ac0073c1e014.filesusr.com/ugd/822ecd_a2f0c2b51df345d492928ee9f8552191.pdf?index=true
    • https://a3bb72d6-3237-4f84-945b-c506fed0b887.filesusr.com/ugd/0cd019_fd1e3b578fdd4107bcc5f874b85fec6e.pdf?index=true
    • https://4305e361-b024-4a73-8719-b4d58881ae45.filesusr.com/ugd/6f53d7_021738639bf44b8ca7452014117083c2.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jegatakufiritejat.pdf
    • https://cdn.shopify.com/s/files/1/0430/5354/7677/files/sasogoto.pdf
    • https://cdn.shopify.com/s/files/1/0430/3850/7169/files/4208676852.pdf
    • https://cdn.shopify.com/s/files/1/0438/5079/3110/files/sobobavo.pdf
    • https://2aea845d-6f35-461b-ad3c-22088ca6f1d6.filesusr.com/ugd/f0b6b3_3bf5bd5407d74f15bb725942eab673d9.pdf?index=true
    • https://e771979d-a745-4f01-a4be-d09cb216ad53.filesusr.com/ugd/5f5755_76225c7bf80f4bce8b9066c827cc8871.pdf?index=true
    • https://b76d872c-d4ed-46b5-981c-f713a1709d6f.filesusr.com/ugd/599026_4037245307e34e89a3b335f02acff287.pdf?index=true
    • 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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063c3.bin
b72e556104a05f6d23430f724e78f57f88089ea5c5e77ba26bc923eef355408b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63C3 3136 bytes
font_01_sfnt_off00006ef8.bin
39314eb7427a6805a1a3cc75e6272dd4fc94d88ec21f92a79ec82ebedda57f90		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EF8 5476 bytes
font_02_sfnt_off000081ac.bin
f650095f8fb268191ceaa48bbf5bcb69fbd46cc5f1ea318a272bea2b6d98e9eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81AC 15116 bytes

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