Malicious PDF — malware analysis report

Static analysis result for SHA-256 56c1308c67da2081…

MALICIOUS

PDF

48.9 KB Created: 2020-08-09 05:22:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2c0bf32bb65f7732c389318385442cdd SHA-1: 35f095f23324d548d3405d1005085458f3c434fd SHA-256: 56c1308c67da20816420a597b41274c6b877f21963155f086543d4baf6ca6e47
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains text referencing 'Bibel tv programmheft pdf' and includes the malicious URL. The primary malicious URL, 'https://ttraff.cc/pify?keyword=bibel+tv+programmheft+pdf', is designed to redirect users to further malicious content, likely for phishing or malware distribution.

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.cc/pify?keyword=bibel+tv+programmheft+pdf
    • http://files.suenamibeautypoint.com/uploads/1/3/0/8/130814531/jomebag-pobesoketaw-kenubosatunige-suxidewab.pdf
    • http://vigilunew.philanthropy1.com/uploads/1/3/1/6/131607062/renivive.pdf
    • http://files.troop3mbts.com/uploads/1/3/0/9/130969731/tilapujedasimuvuxud.pdf
    • http://files.nauigreendiver.org/uploads/1/3/1/4/131409009/lejatiji-tivejurexi.pdf
    • http://files.slowfoodolympia.org/uploads/1/3/0/7/130776511/87cd526.pdf
    • https://cdn.shopify.com/s/files/1/0433/5704/4890/files/foxaxopejuv.pdf
    • https://cdn.shopify.com/s/files/1/0437/7752/3873/files/bark_at_the_moon_guitar_tab.pdf
    • https://cdn.shopify.com/s/files/1/0432/5959/2859/files/salebepesaruxu.pdf
    • https://cdn.shopify.com/s/files/1/0432/6624/4766/files/jenepox.pdf
    • https://cdn.shopify.com/s/files/1/0429/6366/5062/files/wibalij.pdf
    • https://cdn.shopify.com/s/files/1/0434/5217/0406/files/water_soluble_fertilizers_for_fertigation.pdf
    • https://cdn.shopify.com/s/files/1/0440/2066/2422/files/runescape_sentinel_fragments.pdf
    • https://cdn.shopify.com/s/files/1/0435/1649/3976/files/saxubokovosukozisem.pdf
    • https://cdn.shopify.com/s/files/1/0430/5554/6517/files/71120062723.pdf
    • https://cdn.shopify.com/s/files/1/0445/6588/9188/files/character_sketch_of_bassanio_in_merchant_of_venice.pdf
    • https://cdn.shopify.com/s/files/1/0428/7250/4483/files/90861287615.pdf
    • https://cdn.shopify.com/s/files/1/0429/5501/4297/files/60736405495.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005cfc.bin
310667e38d325cb51b2c425b1781fa1b3250c97af23fe5e9439df1ad0dec7969		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CFC 5208 bytes
font_01_sfnt_off00006eb5.bin
0692d9fc5856dc3a1a0f448e3bfaee21eeb620ea4186cd918657bfad304ea2a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EB5 10988 bytes
font_02_sfnt_off00009340.bin
a8b3175009038fd0b36d272851454f9fd5e73b9a70874fb4018b32218f75eaa7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9340 16092 bytes
font_03_sfnt_off0000a7ff.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA7FF 4324 bytes

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