Malicious PDF — malware analysis report

Static analysis result for SHA-256 5011284af069270c…

MALICIOUS

PDF

40.7 KB Created: 2020-09-20 05:51:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ccbd0bacd33580e3dd544c9381095cf3 SHA-1: 41954923e6a87c2fca447e5a0e2992998c9ebf83 SHA-256: 5011284af069270c5bc6e6c413dafef61c39f300d3065cdf08b2e9e6f54df400
152 Risk Score

Malware Insights

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

The PDF contains a prominent link disguised as a lure for "free nba live mobile account login". This link redirects to a known malicious domain, indicating a phishing or scam attempt. The PDF also contains a large number of embedded links, many of which point to potentially malicious or SEO-farmed content, further supporting the malicious intent. No scripts were extracted from this sample.

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.club/wix?keyword=free+nba+live+mobile+account+login
    • http://files.andreabrewtonphotography.com/uploads/1/3/0/9/130969931/1310741.pdf
    • http://paxuzewi.kfbca.com/uploads/1/3/0/8/130813934/470968.pdf
    • http://files.betruebydesign.com/uploads/1/3/2/6/132695732/0b1d72e698.pdf
    • https://cdn.shopify.com/s/files/1/0441/3489/1672/files/gym_exercise_for_biceps_and_triceps.pdf
    • https://cdn.shopify.com/s/files/1/0440/6080/3237/files/28572695011.pdf
    • https://cdn.shopify.com/s/files/1/0437/5992/7448/files/wefebotifab.pdf
    • https://cdn.shopify.com/s/files/1/0428/5356/4583/files/healthyliving.pepsico.com_wellness_questionnaire.pdf
    • https://cdn.shopify.com/s/files/1/0438/3706/3328/files/shrink_a.pdf
    • https://cdn.shopify.com/s/files/1/0477/2977/0652/files/essentials_of_investments_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0433/1231/6584/files/69323309473.pdf
    • https://cdn.shopify.com/s/files/1/0430/8133/4933/files/34988194082.pdf
    • https://cdn.shopify.com/s/files/1/0438/3955/3696/files/42748621850.pdf
    • https://ff82db60-c3b0-483c-9878-ad2353400226.filesusr.com/ugd/5af86b_a172d9a572f44607ae7dd8d21aad7ee5.pdf?index=true
    • https://0edf92d1-8daa-424a-a69c-70aae0ff0d07.filesusr.com/ugd/cb2bed_eee5156de8b545bebbb5bca82e2dda8f.pdf?index=true
    • https://1cd1b253-57fd-449a-a1dd-d7a1996d3499.filesusr.com/ugd/891219_6f8f2a66e806440081667965662e83fc.pdf?index=true
    • https://11e1ea33-a264-433a-80b8-b0905f34144d.filesusr.com/ugd/314c35_7d8c0cc4c248455d9110e1881cb23ab2.pdf?index=true
    • https://75faae60-9f1a-4bdb-8ed1-8015a488d542.filesusr.com/ugd/610d21_cba1b30a126a4977ab81a0fc1b996f0d.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060c5.bin
c9d6f629f4030e7e791ab6e357776e93b493ec5f7d487d6ba7d648482c820137		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60C5 5096 bytes
font_01_sfnt_off00007211.bin
86bada500223197fbe7d720ce5dcd9d0bc39170ce62066e9d7e90cbcda11c475		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7211 10492 bytes

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