Malicious PDF — malware analysis report

Static analysis result for SHA-256 00d86a6d26bf1788…

MALICIOUS

PDF

64.9 KB Created: 2020-08-24 23:32:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dc97de433199539bfe9b946ac3d70268 SHA-1: d55b270e7e3078832a5f50a29a168311af19f1ef SHA-256: 00d86a6d26bf1788796ba152549fbb1a55e2f9ea0a02a1369e8489cb31b3ac9c
154 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector infrastructure. The document body text and embedded URLs suggest a lure related to 'alamelu manga songs free', likely intended to trick users into visiting malicious sites. The ML classifier strongly indicated maliciousness, supporting the heuristic findings of a malicious redirector and link farm.

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.ru/pify?keyword=alamelu+manga+songs+free
    • http://derusoj.gregbottle.co.uk/uploads/1/3/2/6/132680955/5587591.pdf
    • http://files.chulavistachamber.org/uploads/1/3/2/7/132740606/3852d.pdf
    • http://noxiduj.mrmuhammadmusic.com/uploads/1/3/0/7/130775795/9493144.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • https://cdn.shopify.com/s/files/1/0434/8225/1421/files/tifed.pdf
    • https://cdn.shopify.com/s/files/1/0435/3359/8880/files/angrej_full_movies_online.pdf
    • https://cdn.shopify.com/s/files/1/0434/0816/2974/files/angular_momentum_techniques_in_quantum_mechanics.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jewaxepolirabosumasedud.pdf
    • https://cdn.shopify.com/s/files/1/0437/9358/0181/files/a_level_computer_science_revision_notes.pdf
    • https://cdn.shopify.com/s/files/1/0433/9413/8277/files/tefufofavejutuzu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1800/2340/files/mixoj.pdf
    • https://cdn.shopify.com/s/files/1/0450/3673/2566/files/uses_of_a_liberal_education.pdf
    • https://cdn.shopify.com/s/files/1/0430/9703/0805/files/rigosobujolekotivit.pdf
    • https://cdn.shopify.com/s/files/1/0436/9953/6040/files/19464414305.pdf
    • https://cdn.shopify.com/s/files/1/0430/7720/6178/files/edema_pulmonar_fisiopatologia.pdf
    • https://cdn.shopify.com/s/files/1/0428/3056/1447/files/philosophical_gourmet_report.pdf
    • https://cdn.shopify.com/s/files/1/0434/3057/6295/files/gokepadotima.pdf
    • https://cdn.shopify.com/s/files/1/0439/4418/1928/files/35245306655.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009fc0.bin
ffa4bbfeaae4f87e6dcfd737848e0c73a151811eb8bb3300172b6e0e63c25a9a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9FC0 5076 bytes
font_01_sfnt_off0000b0ee.bin
86df55293b2264bc294bc01f95ebcb8ca4dd19cfd9debb2cc3147fe7781cc91a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB0EE 2684 bytes
font_02_sfnt_off0000bc87.bin
d58a0de199576343fc5538f7e40c33e3be028a23307b21596d1e8f202b691e18		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBC87 14556 bytes
font_03_sfnt_off0000ea7b.bin
7c099cb770edf174c33d1ed602e794ee34bac13be3b0470a7bb37d1f9165b319		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA7B 2848 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.