Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e2917b07426bc02…

MALICIOUS

PDF

85.0 KB Created: 2021-04-04 06:30:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cbef5ea9cbf5db3366854cd19be08e0c SHA-1: 953162d0427e9e7904e272f082b320b2d5571950 SHA-256: 2e2917b07426bc027201ebfa81f0dcd1422a9cbd707aa6fba346eada35f8ed86
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, with one prominent URL suggesting a translation service as a lure. The presence of a PDF link farm heuristic and ClamAV detection as 'Pdf.Phishing.Trojan' strongly indicates malicious intent. While no scripts were directly extracted, the overall structure and heuristics point towards a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://nipisod.ru/award?keyword=translate+pdf+arabic+to+english+online
    • http://remontvorot24.com/927844645516e61.pdf
    • https://cdn-cms.f-static.net/uploads/4487903/normal_6062d82212747.pdf
    • http://airet.space/fodedofezobiwisukalexuwtb0gh.pdf
    • http://my-favshoph.online/how_to_get_data_from_cell_in_excel_vba38fl5.pdf
    • https://static.s123-cdn-static.com/uploads/4474752/normal_5fef3ee1e3090.pdf
    • https://static.s123-cdn-static.com/uploads/4369316/normal_5fe33fec9b75e.pdf
    • https://cdn-cms.f-static.net/uploads/4488809/normal_60498e971162c.pdf
    • https://cdn-cms.f-static.net/uploads/4484103/normal_601466dcc760e.pdf
    • http://keksik24.ru/46874374585o27zl.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/kabisebax/sp_303_vinyl_sim.pdf
    • https://bff5fdab-9fd0-4670-908b-a1308bb5a9cb.filesusr.com/ugd/227d0f_883ff3009ba943ffacf69e4df56741f1.pdf?index=true
    • https://cdd249b8-77b1-4a94-b024-8995efe4d959.filesusr.com/ugd/d394ff_0c46d5bc16774825bc071b9234eaed22.pdf?index=true
    • https://s3.amazonaws.com/lanaladu/78993827893.pdf
    • https://uploads.strikinglycdn.com/files/4cc42d9e-4cd5-4cc6-968e-1b1032eddc8d/fotawud.pdf
    • https://uploads.strikinglycdn.com/files/8745338c-a65e-4834-8bf1-1e2fd77bbe98/icom_ic-2100h_manual.pdf
    • https://s3.amazonaws.com/galinikagopit/beware_of_the_dog_dahl.pdf
    • https://s3.amazonaws.com/bogijexu/31163099217.pdf
    • https://s3.amazonaws.com/fofeguj/jowop.pdf
    • https://s3.amazonaws.com/jedobufudajewu/wagner_procoat_wont_prime.pdf
    • https://s3.amazonaws.com/nuselufuzo/jetukerejakuju.pdf
    • https://uploads.strikinglycdn.com/files/d8ee211f-ab67-474e-92f9-23211d5a5a91/62388086635.pdf
    • https://1237a3da-0b33-4890-9ba9-974507bf2590.filesusr.com/ugd/3e0cb9_1c65734b8afe47f4bc72efab7eaee945.pdf?index=true
    • https://s3.amazonaws.com/tojabixefova/wumelewujezagabobef.pdf
    • https://s3.amazonaws.com/tinivukedeta/zazatukimodupatum.pdf
    • https://uploads.strikinglycdn.com/files/2e9be134-454b-4357-a74d-bc7cf1968aa9/marixedunelotanenabave.pdf
    • https://2ad55d82-15d9-4995-b72c-f03dca93b5f4.filesusr.com/ugd/11b7eb_bd050336267d4077bd62ff2f835258fb.pdf?index=true
    • https://s3.amazonaws.com/lososimap/54463066032.pdf
    • https://7b9449e5-51e9-4a7e-81f5-8587c42320f9.filesusr.com/ugd/571bad_6fada0209e2c4d368eb899a0282bc83a.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/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f7b0.bin
f9bfe8eafd104921ceda50d0b69595b522724190f1c7641929c181b4a49532fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF7B0 5504 bytes
font_01_sfnt_off00010a56.bin
ab425971a70d4b3d49ae6a7866fa91e06877b5d94966ed545e7c58a0067e040b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A56 11260 bytes
font_02_sfnt_off000130ed.bin
e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x130ED 16204 bytes

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