Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbec65ebfd4a9705…

MALICIOUS

PDF

142.3 KB Created: 2021-03-12 00:22:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 77df312805dc023ce86e585c6af2bcde SHA-1: df355812f4b2ce923ffe8a1afd4b210fb4b22d27 SHA-256: fbec65ebfd4a97054b63a17ed5e78c0e35077c62d1746f3e72d145ab14b59589
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with a significant portion pointing to disposable hosting and link farms, indicating a malicious intent to redirect users. The ML classifier and ClamAV detection strongly suggest this PDF is malicious, likely serving as a lure to phishing or malware distribution sites. While no scripts were directly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to exploit user trust.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9263

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://botokaw.ru/award?keyword=rig+veda+sandhyavandanam+sanskrit+pdf PDF link annotation
    • http://onenature.space/29636487843icnb2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469378/normal_6029486a54e6a.pdfIn PDF document text
    • https://dodoxatufasiw.weebly.com/uploads/1/3/2/6/132681482/fewitudotilu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422631/normal_5ff4d6c9f3aed.pdfIn PDF document text
    • https://rodadeta.weebly.com/uploads/1/3/5/3/135391988/079595521e6742.pdfIn PDF document text
    • http://igonlinesupport.com/funivumugewafowed08.pdfIn PDF document text
    • https://sufudavinor.weebly.com/uploads/1/3/1/3/131381021/sumilo_tizafafuj.pdfIn PDF document text
    • https://xesuxikoju.weebly.com/uploads/1/3/4/0/134095833/5312002.pdfIn PDF document text
    • http://fb-pageunderreview.com/world_at_arms_gamel76xn.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423428/normal_5fc56f5a32d19.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102HussainIn PDF document text
    • http://smc.org.inhttp://smc.org.inIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/gogoxowiniza/du_battery_saver_uptodown.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55b1a1d3-4327-45c7-82bb-4b4e6267cbce/leica_m6_ttl_0.58.pdfIn PDF document text
    • https://s3.amazonaws.com/sorogamat/fujitsu_scansnap_s1300i_wifi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61cb05e8-7016-48f9-aa74-62b396f9ab22/trane_xe90_inducer_motor_replacement.pdfIn PDF document text
    • https://s3.amazonaws.com/geradi/niwogonodubazakifinapomu.pdfIn PDF document text
    • https://s3.amazonaws.com/kovezodepugov/74773002645.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/faea9be0-4ed3-4eb5-93c6-2ded2a4205da/vifujexipanagaxuvo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62bf9fba-de07-444d-9fe2-b10f087b2e47/49954561345.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef2cb399-b635-4085-9349-bf268507ad48/free_storyboard_tool_online.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • https://gitlab.com/smc/meera/blob/master/COPYINGIn PDF document text

Extracted artifacts 10

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_013_off0001fc11.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1FC11 13808 bytes
SHA-256: a48169965f05f5a7223079b69be8b5f9b3fa390dc94d0595cfd6c20acac56f24
font_00_sfnt_off00016c87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16C87 5232 bytes
SHA-256: 1922e837e481c23c77f379727b4c5c22e8b7d7f885fcc85ba35b275ab6d456d7
font_01_sfnt_off00017e8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17E8B 5332 bytes
SHA-256: b61bee516d548283baa63a161df8abb1be5fd902e79a211afd358eafdf2c618c
font_02_sfnt_off00019082.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19082 3180 bytes
SHA-256: 320dc49d908ffbc0ee9c5bac36d15cb490c4187fd45fbee6d1d478cb2d0b0124
font_03_sfnt_off00019d48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19D48 3772 bytes
SHA-256: e2c7bb3c6d2fbc6b9680c858ce58af9e5cd0e4fbc18f33bdd2ad1d5654d08a87
font_04_sfnt_off0001a8e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A8E2 2692 bytes
SHA-256: 752fa982ceef0f164290341ec0f0e6f235799caa71bff9575a0eee96c45a7506
font_05_sfnt_off0001b390.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B390 2080 bytes
SHA-256: ba459b74eabb0cec98f4e87a12091b72a11f40eb7e77551767adc3feadc1d7af
font_06_sfnt_off0001bd76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BD76 1944 bytes
SHA-256: d55cc2ab8fd95d5b771dbbb611faadfaf32852a521918b24a6d44cae8d05e511
font_07_sfnt_off0001c719.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C719 12772 bytes
SHA-256: 0f3ff03ef79d463c4c8a0484c6559a08f8c2e8d75a969686c9d3c12422b76858
font_08_sfnt_off0001ee07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1EE07 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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