Malicious PDF — malware analysis report

Static analysis result for SHA-256 02da8a37aabae722…

MALICIOUS

PDF

49.8 KB Created: 2020-08-31 06:33:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 29dba700b0d3da4bdd895788c73bbc78 SHA-1: 0d3c8975afcac298b1d9ea045d21a566d99a35d2 SHA-256: 02da8a37aabae72218ad102e534b73ffdab79d1de779d926f4daac0c5d90a34c
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, with one identified as a malicious redirector and others pointing to a link farm. The document body, though partially corrupted, contains a URL that matches the malicious redirector. This suggests an attempt to manipulate search engine results or redirect users to malicious sites, potentially for phishing or malware distribution.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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.com/wix?keyword=chemistry+matter+and+change+chapter
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0439/5322/5883/files/valores_normales_de_cetonas_en_orina.pdf
    • https://cdn.shopify.com/s/files/1/0439/6387/5486/files/akuntansi_perbankan_taswan.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vinupagudesezubinu.pdf
    • https://cdn.shopify.com/s/files/1/0439/3431/8760/files/aix_nim_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/2571/8678/files/25061598812.pdf
    • https://static.usrfiles.com/ugd/b8c837_e8a828d5db344b34b4a16364c9714aa7.pdf
    • https://static.usrfiles.com/ugd/defcb2_85f53eaaac334fc2880d55780e5f17a6.pdf
    • https://cdn.shopify.com/s/files/1/0439/3782/4926/files/degiwaxubajepibagad.pdf
    • https://cdn.shopify.com/s/files/1/0430/7383/1072/files/examples_of_ambiguous_sentences_with_two_meanings.pdf
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/vmware_workstation_license_key.pdf
    • https://cdn.shopify.com/s/files/1/0435/4431/4011/files/wow_classic_mage_fast_leveling_guide.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007854.bin
23742a172505936f1336cb647f2f6bf3f7b7efd2f220a498b6e8cfab7babf5a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7854 5256 bytes
font_01_sfnt_off00008a12.bin
e594bd6d77cc0bd85cb4bb7853a154cc220392bb15d2ae34e32a7041004f81f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A12 10180 bytes
font_02_sfnt_off0000acb0.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xACB0 4324 bytes

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