PDF malware analysis — malicious · e8f80c47b6876fd0

MALICIOUS

PDF

86.9 KB Created: 2021-03-10 01:02:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22

MD5: 0b80926ae3d805f8f51b4b2961e3ccf1 SHA-1: bc6a4900a390a67f4243697a511a2644c230f03e SHA-256: e8f80c47b6876fd0bd1649d96ad48d4781abbdeff87fa4979e80a5af3d280c05

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, with a critical heuristic identifying it as a link farm. The document body, though heavily obfuscated, suggests a lure related to an exam syllabus. The presence of multiple external URLs, including one hosted on a potentially malicious domain, indicates an attempt to redirect users to external content, likely for phishing or malware distribution.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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 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.
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://leonvi.ru/award?keyword=ibps+po+exam+2020+syllabus+pdf PDF link annotation
- https://pazunorafozide.weebly.com/uploads/1/3/0/7/130776571/a7b8c48c.pdfIn PDF document text
- http://wokizunapajunez.iblogger.org/ncaa_basketball_10_pc_free.pdfIn PDF document text
- https://jegasujarirulif.weebly.com/uploads/1/3/4/7/134720127/4914c34.pdfIn PDF document text
- https://fakazurirogedim.weebly.com/uploads/1/3/4/7/134743668/f3dcc0.pdfIn PDF document text
- https://gogesixemaso.weebly.com/uploads/1/3/2/3/132302802/bulomivusubato.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://s3.amazonaws.com/dutuzanob/motutajipisof.pdfIn PDF document text
- https://d1159ab4-cbf5-42eb-897b-83a5e94cd7da.filesusr.com/ugd/536122_df7c4a22c26e4cb79c3a7ba6128cf915.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/faxaxos/kokowewotepivobevif.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cfedfcf4-d38f-4176-9701-4ff2288e938e/plantar_fasciitis_exercises_kaiser.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2ef9d326-a0c1-47b7-b9fd-d9692fc3c4fd/44388494237.pdfIn PDF document text
- http://rodukamofuf.epizy.com/84343764608.pdfIn PDF document text
- https://s3.amazonaws.com/jinotugiwomo/80328583787.pdfIn PDF document text
- https://b00f38ea-0d13-4519-ab0f-1253f0d03ca0.filesusr.com/ugd/289c5e_f04cd843bea44e529f575560192a5b50.pdf?index=trueIn PDF document text
- http://zezatavaveb.epizy.com/tuvukexisemesabanu.pdfIn PDF document text
- https://s3.amazonaws.com/dowadotiju/the_ending_of_there_will_be_blood_explained.pdfIn PDF document text
- https://s3.amazonaws.com/lolijexejomak/physics_assertion_reason_for_aiims.pdfIn PDF document text
- https://s3.amazonaws.com/tizowodifi/tefuzanumekus.pdfIn PDF document text
- https://878ee1be-828d-48b9-a24a-84283cf66a1c.filesusr.com/ugd/86936c_9f3b22f508394ed5a5fd0fd9b42673e5.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/2a3ebfbd-1e2d-4d91-9cb5-20320ac884b7/sprint_promo_codes_november_2019.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000fdaf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFDAF	5612 bytes
SHA-256: `c80d6377074624c4dc9122691d11851ca9fdfa0a69796366e57787b45235e424`
`font_01_sfnt_off000110bd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x110BD	12340 bytes
SHA-256: `21f66f79c0ced88fe8fe73a4115b88af99d8e88cfab32c014641652355c623e0`
`font_02_sfnt_off00013878.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x13878	5428 bytes
SHA-256: `7f3dde46021b68284d8ba3271a0500b287f4f2bd941c37472d9e5284774ce950`

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