Malicious PDF — malware analysis report

Static analysis result for SHA-256 d396d57954e27f09…

MALICIOUS

PDF

51.0 KB Created: 2020-10-16 02:06:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: b2c637e074b83ce48a85989b8ff156d2 SHA-1: 2d480bbf1be28d566f32e8f45502d993abf42aaa SHA-256: d396d57954e27f099da13dce5fd2410c32774e56616b4fc18e97451ffa194565
162 Risk Score

Malware Insights

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

The PDF contains multiple links, including one pointing to a known malicious redirector infrastructure at 'https://ttraff.club/pify?keyword=download+ppsspp+fifa+19+apk'. The document body also contains this URL, suggesting an attempt to trick the user into downloading an application. The presence of a "download button" heuristic further supports this phishing-like lure. While no scripts were extracted, the PDF structure and embedded links indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/pify?keyword=download+ppsspp+fifa+19+apk In PDF document text
    • https://vawotitalu.weebly.com/uploads/1/3/2/7/132710714/fff4608ac61.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/zutilipevozafeguwu.pdfIn PDF document text
    • https://lefedatit.weebly.com/uploads/1/3/0/7/130776734/a50a5de79d85ee5.pdfIn PDF document text
    • https://bijifejutumaxob.weebly.com/uploads/1/3/1/3/131381781/bajanererimo.pdfIn PDF document text
    • https://talapilodegopez.weebly.com/uploads/1/3/0/9/130969507/girunifodok-mudanufavi-gemepirul-dexitatojedoxu.pdfIn PDF document text
    • https://nagifinapu.weebly.com/uploads/1/3/2/6/132696111/7115017.pdfIn PDF document text
    • https://dofazodasi.weebly.com/uploads/1/3/0/8/130873943/toragexo-zusebenagura.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/4e0d994f.pdfIn PDF document text
    • https://juragubiv.weebly.com/uploads/1/3/0/8/130874328/lenojupapiz.pdfIn PDF document text
    • https://site-1042193.mozfiles.com/files/1042193/zuwubumatorefutenawopi.pdfIn PDF document text
    • https://site-1048288.mozfiles.com/files/1048288/65940026109.pdfIn PDF document text
    • https://site-1037121.mozfiles.com/files/1037121/nigotimijakatowibif.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3771/2806/files/google_search_cache_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1086/6851/files/hayman_reese_brake_controller_instruction_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/5875/2405/files/sululururezafojatonukera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/3080/7196/files/83059239280.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0494/4835/3959/files/12964879255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7352/8223/files/36533321459.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/8523/2811/files/android_one_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8739/6004/files/arpspoof_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/5978/1023/files/canon_t5i_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/1595/3320/files/52195971017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5561/2058/files/ragisifu.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007042.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7042 5304 bytes
SHA-256: 052f7cfd9434393a7e3ce8c79d742f28b22d2fe2deb3801eede7d8a03d144be5
font_01_sfnt_off0000827c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x827C 11240 bytes
SHA-256: 7792f46601d2ab82d1a3e7f643762b2483ba97e2356b65ea994fcc84456f29ac
font_02_sfnt_off0000a765.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA765 16424 bytes
SHA-256: 63e306f2f40b5c9339d17fb9a8695b63751f7f68ae6c4da4a05a79290018dcd0